[dpdk-dev] [PATCH 19/23] net/sfc/base: support MARK and FLAG actions in filters

[Andrew Rybchenko]

From: Roman Zhukov <Roman.Zhukov at oktetlabs.ru>

This patch adds support for DPDK rte_flow "MARK" and "FLAG" filter
actions to filters on EF10 family NICs.

Signed-off-by: Roman Zhukov <Roman.Zhukov at oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
 drivers/net/sfc/base/ef10_filter.c | 31 +++++++++++++++++++++++++++----
 drivers/net/sfc/base/efx.h         |  5 +++++
 drivers/net/sfc/base/efx_filter.c  | 21 +++++++++++++++++++++
 3 files changed, 53 insertions(+), 4 deletions(-)

diff --git a/drivers/net/sfc/base/ef10_filter.c b/drivers/net/sfc/base/ef10_filter.c
index bf4992e..ae87285 100644
--- a/drivers/net/sfc/base/ef10_filter.c
+++ b/drivers/net/sfc/base/ef10_filter.c
@@ -172,7 +172,7 @@ efx_mcdi_filter_op_add(
 	__inout		ef10_filter_handle_t *handle)
 {
 	efx_mcdi_req_t req;
-	uint8_t payload[MAX(MC_CMD_FILTER_OP_EXT_IN_LEN,
+	uint8_t payload[MAX(MC_CMD_FILTER_OP_V3_IN_LEN,
 			    MC_CMD_FILTER_OP_EXT_OUT_LEN)];
 	efx_filter_match_flags_t match_flags;
 	efx_rc_t rc;
@@ -180,7 +180,7 @@ efx_mcdi_filter_op_add(
 	memset(payload, 0, sizeof (payload));
 	req.emr_cmd = MC_CMD_FILTER_OP;
 	req.emr_in_buf = payload;
-	req.emr_in_length = MC_CMD_FILTER_OP_EXT_IN_LEN;
+	req.emr_in_length = MC_CMD_FILTER_OP_V3_IN_LEN;
 	req.emr_out_buf = payload;
 	req.emr_out_length = MC_CMD_FILTER_OP_EXT_OUT_LEN;
 
@@ -316,16 +316,37 @@ efx_mcdi_filter_op_add(
 		    spec->efs_ifrm_loc_mac, EFX_MAC_ADDR_LEN);
 	}
 
+	/*
+	 * Set the "MARK" or "FLAG" action for all packets matching this filter
+	 * if necessary (only useful with equal stride packed stream Rx mode
+	 * which provide the information in pseudo-header).
+	 * These actions require MC_CMD_FILTER_OP_V3_IN msgrequest.
+	 */
+	if ((spec->efs_flags & EFX_FILTER_FLAG_ACTION_MARK) &&
+	    (spec->efs_flags & EFX_FILTER_FLAG_ACTION_FLAG)) {
+		rc = EINVAL;
+		goto fail3;
+	}
+	if (spec->efs_flags & EFX_FILTER_FLAG_ACTION_MARK) {
+		MCDI_IN_SET_DWORD(req, FILTER_OP_V3_IN_MATCH_ACTION,
+		    MC_CMD_FILTER_OP_V3_IN_MATCH_ACTION_MARK);
+		MCDI_IN_SET_DWORD(req, FILTER_OP_V3_IN_MATCH_MARK_VALUE,
+		    spec->efs_mark);
+	} else if (spec->efs_flags & EFX_FILTER_FLAG_ACTION_FLAG) {
+		MCDI_IN_SET_DWORD(req, FILTER_OP_V3_IN_MATCH_ACTION,
+		    MC_CMD_FILTER_OP_V3_IN_MATCH_ACTION_FLAG);
+	}
+
 	efx_mcdi_execute(enp, &req);
 
 	if (req.emr_rc != 0) {
 		rc = req.emr_rc;
-		goto fail3;
+		goto fail4;
 	}
 
 	if (req.emr_out_length_used < MC_CMD_FILTER_OP_EXT_OUT_LEN) {
 		rc = EMSGSIZE;
-		goto fail4;
+		goto fail5;
 	}
 
 	handle->efh_lo = MCDI_OUT_DWORD(req, FILTER_OP_EXT_OUT_HANDLE_LO);
@@ -333,6 +354,8 @@ efx_mcdi_filter_op_add(
 
 	return (0);
 
+fail5:
+	EFSYS_PROBE(fail5);
 fail4:
 	EFSYS_PROBE(fail4);
 fail3:
diff --git a/drivers/net/sfc/base/efx.h b/drivers/net/sfc/base/efx.h
index cd0e6f8..f5ec568 100644
--- a/drivers/net/sfc/base/efx.h
+++ b/drivers/net/sfc/base/efx.h
@@ -2622,6 +2622,10 @@ efx_tx_qdestroy(
 #define	EFX_FILTER_FLAG_RX		0x08
 /* Filter is for TX */
 #define	EFX_FILTER_FLAG_TX		0x10
+/* Set match flag on the received packet */
+#define	EFX_FILTER_FLAG_ACTION_FLAG	0x20
+/* Set match mark on the received packet */
+#define	EFX_FILTER_FLAG_ACTION_MARK	0x40
 
 typedef uint8_t efx_filter_flags_t;
 
@@ -2707,6 +2711,7 @@ typedef struct efx_filter_spec_s {
 	efx_oword_t			efs_loc_host;
 	uint8_t				efs_vni_or_vsid[EFX_VNI_OR_VSID_LEN];
 	uint8_t				efs_ifrm_loc_mac[EFX_MAC_ADDR_LEN];
+	uint32_t			efs_mark;
 } efx_filter_spec_t;
 
 
diff --git a/drivers/net/sfc/base/efx_filter.c b/drivers/net/sfc/base/efx_filter.c
index 97c972c..412298a 100644
--- a/drivers/net/sfc/base/efx_filter.c
+++ b/drivers/net/sfc/base/efx_filter.c
@@ -74,12 +74,33 @@ efx_filter_insert(
 	__inout		efx_filter_spec_t *spec)
 {
 	const efx_filter_ops_t *efop = enp->en_efop;
+	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+	efx_rc_t rc;
 
 	EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_FILTER);
 	EFSYS_ASSERT3P(spec, !=, NULL);
 	EFSYS_ASSERT3U(spec->efs_flags, &, EFX_FILTER_FLAG_RX);
 
+	if ((spec->efs_flags & EFX_FILTER_FLAG_ACTION_MARK) &&
+	    !encp->enc_filter_action_mark_supported) {
+		rc = ENOTSUP;
+		goto fail1;
+	}
+
+	if ((spec->efs_flags & EFX_FILTER_FLAG_ACTION_FLAG) &&
+	    !encp->enc_filter_action_flag_supported) {
+		rc = ENOTSUP;
+		goto fail2;
+	}
+
 	return (efop->efo_add(enp, spec, B_FALSE));
+
+fail2:
+	EFSYS_PROBE(fail2);
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+	return (rc);
 }
 
 	__checkReturn	efx_rc_t
-- 
2.7.4