openwrt/target/linux/layerscape/patches-5.4/701-net-0154-soc-fsl-dpio-add-support-for-opr.patch

From a0fd93952b6f0b408d96b29a0b9beb8bb2d8a24d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>
Date: Wed, 10 Oct 2018 15:59:55 +0300
Subject: [PATCH] soc: fsl: dpio: add support for opr
MIME-Version: 1.0
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Order preservation is a feature that will be supported
in dpni, dpseci and dpci devices.
This is a preliminary patch for the changes to be
introduced in the corresponding drivers.

Signed-off-by: Radu Alexe <radu.alexe@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
---
 include/soc/fsl/dpaa2-global.h | 74 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

--- a/include/soc/fsl/dpaa2-global.h
+++ b/include/soc/fsl/dpaa2-global.h
@@ -189,4 +189,78 @@ static inline bool dpaa2_cscn_state_cong
 	return !!(cscn->scn.state & DPAA2_CSCN_STATE_CG);
 }
 
+/* Data Path Order Restoration API
+ * Contains initialization APIs and runtime APIs for the Order Restoration
+ */
+
+/** Order Restoration properties */
+
+/**
+ * Create a new Order Point Record option
+ */
+#define OPR_OPT_CREATE 0x1
+/**
+ * Retire an existing Order Point Record option
+ */
+#define OPR_OPT_RETIRE 0x2
+
+/**
+ * struct opr_cfg - Structure representing OPR configuration
+ * @oprrws: Order point record (OPR) restoration window size (0 to 5)
+ *			0 - Window size is 32 frames.
+ *			1 - Window size is 64 frames.
+ *			2 - Window size is 128 frames.
+ *			3 - Window size is 256 frames.
+ *			4 - Window size is 512 frames.
+ *			5 - Window size is 1024 frames.
+ * @oa: OPR auto advance NESN window size (0 disabled, 1 enabled)
+ * @olws: OPR acceptable late arrival window size (0 to 3)
+ *			0 - Disabled. Late arrivals are always rejected.
+ *			1 - Window size is 32 frames.
+ *			2 - Window size is the same as the OPR restoration
+ *				window size configured in the OPRRWS field.
+ *			3 - Window size is 8192 frames. Late arrivals are
+ *				always accepted.
+ * @oeane: Order restoration list (ORL) resource exhaustion
+ *			advance NESN enable (0 disabled, 1 enabled)
+ * @oloe: OPR loose ordering enable (0 disabled, 1 enabled)
+ */
+struct opr_cfg {
+	u8 oprrws;
+	u8 oa;
+	u8 olws;
+	u8 oeane;
+	u8 oloe;
+};
+
+/**
+ * struct opr_qry - Structure representing OPR configuration
+ * @enable: Enabled state
+ * @rip: Retirement In Progress
+ * @ndsn: Next dispensed sequence number
+ * @nesn: Next expected sequence number
+ * @ea_hseq: Early arrival head sequence number
+ * @hseq_nlis: HSEQ not last in sequence
+ * @ea_tseq: Early arrival tail sequence number
+ * @tseq_nlis: TSEQ not last in sequence
+ * @ea_tptr: Early arrival tail pointer
+ * @ea_hptr: Early arrival head pointer
+ * @opr_id: Order Point Record ID
+ * @opr_vid: Order Point Record Virtual ID
+ */
+struct opr_qry {
+	char enable;
+	char rip;
+	u16 ndsn;
+	u16 nesn;
+	u16 ea_hseq;
+	char hseq_nlis;
+	u16 ea_tseq;
+	char tseq_nlis;
+	u16 ea_tptr;
+	u16 ea_hptr;
+	u16 opr_id;
+	u16 opr_vid;
+};
+
 #endif /* __FSL_DPAA2_GLOBAL_H */