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2024-09-20 cf4ce59b3b70238352c7f1729f0f7223214828ad 
 kernel/include/soc/fsl/dpaa2-fd.h
....@@ -66,6 +66,15 @@
6666 #define SG_BPID_MASK		0x3FFF
6767 #define SG_FINAL_FLAG_MASK	0x1
6868 #define SG_FINAL_FLAG_SHIFT	15
69
+#define FL_SHORT_LEN_FLAG_MASK	0x1
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+#define FL_SHORT_LEN_FLAG_SHIFT	14
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+#define FL_SHORT_LEN_MASK	0x3FFFF
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+#define FL_OFFSET_MASK		0x0FFF
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+#define FL_FORMAT_MASK		0x3
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+#define FL_FORMAT_SHIFT		12
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+#define FL_BPID_MASK		0x3FFF
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+#define FL_FINAL_FLAG_MASK	0x1
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+#define FL_FINAL_FLAG_SHIFT	15
6978 
7079 /* Error bits in FD CTRL */
7180 #define FD_CTRL_ERR_MASK	0x000000FF
....@@ -435,4 +444,237 @@
435444 	sg->format_offset |= cpu_to_le16(final << SG_FINAL_FLAG_SHIFT);
436445 }
437446 
447
+/**
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+ * struct dpaa2_fl_entry - structure for frame list entry.
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+ * @addr:          address in the FLE
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+ * @len:           length in the FLE
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+ * @bpid:          buffer pool ID
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+ * @format_offset: format, offset, and short-length fields
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+ * @frc:           frame context
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+ * @ctrl:          control bits...including pta, pvt1, pvt2, err, etc
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+ * @flc:           flow context address
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+ */
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+struct dpaa2_fl_entry {
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+	__le64 addr;
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+	__le32 len;
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+	__le16 bpid;
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+	__le16 format_offset;
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+	__le32 frc;
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+	__le32 ctrl;
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+	__le64 flc;
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+};
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+
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+enum dpaa2_fl_format {
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+	dpaa2_fl_single = 0,
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+	dpaa2_fl_res,
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+	dpaa2_fl_sg
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+};
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+
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+/**
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+ * dpaa2_fl_get_addr() - get the addr field of FLE
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+ * @fle: the given frame list entry
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+ *
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+ * Return the address in the frame list entry.
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+ */
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+static inline dma_addr_t dpaa2_fl_get_addr(const struct dpaa2_fl_entry *fle)
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+{
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+	return (dma_addr_t)le64_to_cpu(fle->addr);
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+}
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+
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+/**
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+ * dpaa2_fl_set_addr() - Set the addr field of FLE
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+ * @fle: the given frame list entry
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+ * @addr: the address needs to be set in frame list entry
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+ */
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+static inline void dpaa2_fl_set_addr(struct dpaa2_fl_entry *fle,
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+				     dma_addr_t addr)
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+{
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+	fle->addr = cpu_to_le64(addr);
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+}
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+
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+/**
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+ * dpaa2_fl_get_frc() - Get the frame context in the FLE
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+ * @fle: the given frame list entry
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+ *
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+ * Return the frame context field in the frame lsit entry.
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+ */
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+static inline u32 dpaa2_fl_get_frc(const struct dpaa2_fl_entry *fle)
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+{
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+	return le32_to_cpu(fle->frc);
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+}
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+
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+/**
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+ * dpaa2_fl_set_frc() - Set the frame context in the FLE
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+ * @fle: the given frame list entry
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+ * @frc: the frame context needs to be set in frame list entry
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+ */
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+static inline void dpaa2_fl_set_frc(struct dpaa2_fl_entry *fle, u32 frc)
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+{
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+	fle->frc = cpu_to_le32(frc);
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+}
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+
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+/**
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+ * dpaa2_fl_get_ctrl() - Get the control bits in the FLE
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+ * @fle: the given frame list entry
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+ *
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+ * Return the control bits field in the frame list entry.
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+ */
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+static inline u32 dpaa2_fl_get_ctrl(const struct dpaa2_fl_entry *fle)
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+{
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+	return le32_to_cpu(fle->ctrl);
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+}
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+
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+/**
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+ * dpaa2_fl_set_ctrl() - Set the control bits in the FLE
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+ * @fle: the given frame list entry
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+ * @ctrl: the control bits to be set in the frame list entry
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+ */
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+static inline void dpaa2_fl_set_ctrl(struct dpaa2_fl_entry *fle, u32 ctrl)
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+{
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+	fle->ctrl = cpu_to_le32(ctrl);
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+}
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+
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+/**
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+ * dpaa2_fl_get_flc() - Get the flow context in the FLE
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+ * @fle: the given frame list entry
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+ *
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+ * Return the flow context in the frame list entry.
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+ */
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+static inline dma_addr_t dpaa2_fl_get_flc(const struct dpaa2_fl_entry *fle)
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+{
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+	return (dma_addr_t)le64_to_cpu(fle->flc);
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+}
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+
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+/**
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+ * dpaa2_fl_set_flc() - Set the flow context field of FLE
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+ * @fle: the given frame list entry
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+ * @flc_addr: the flow context needs to be set in frame list entry
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+ */
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+static inline void dpaa2_fl_set_flc(struct dpaa2_fl_entry *fle,
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+				    dma_addr_t flc_addr)
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+{
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+	fle->flc = cpu_to_le64(flc_addr);
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+}
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+
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+static inline bool dpaa2_fl_short_len(const struct dpaa2_fl_entry *fle)
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+{
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+	return !!((le16_to_cpu(fle->format_offset) >>
562
+		  FL_SHORT_LEN_FLAG_SHIFT) & FL_SHORT_LEN_FLAG_MASK);
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+}
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+
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+/**
566
+ * dpaa2_fl_get_len() - Get the length in the FLE
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+ * @fle: the given frame list entry
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+ *
569
+ * Return the length field in the frame list entry.
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+ */
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+static inline u32 dpaa2_fl_get_len(const struct dpaa2_fl_entry *fle)
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+{
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+	if (dpaa2_fl_short_len(fle))
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+		return le32_to_cpu(fle->len) & FL_SHORT_LEN_MASK;
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+
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+	return le32_to_cpu(fle->len);
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+}
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+
579
+/**
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+ * dpaa2_fl_set_len() - Set the length field of FLE
581
+ * @fle: the given frame list entry
582
+ * @len: the length needs to be set in frame list entry
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+ */
584
+static inline void dpaa2_fl_set_len(struct dpaa2_fl_entry *fle, u32 len)
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+{
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+	fle->len = cpu_to_le32(len);
587
+}
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+
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+/**
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+ * dpaa2_fl_get_offset() - Get the offset field in the frame list entry
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+ * @fle: the given frame list entry
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+ *
593
+ * Return the offset.
594
+ */
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+static inline u16 dpaa2_fl_get_offset(const struct dpaa2_fl_entry *fle)
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+{
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+	return le16_to_cpu(fle->format_offset) & FL_OFFSET_MASK;
598
+}
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+
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+/**
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+ * dpaa2_fl_set_offset() - Set the offset field of FLE
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+ * @fle: the given frame list entry
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+ * @offset: the offset needs to be set in frame list entry
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+ */
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+static inline void dpaa2_fl_set_offset(struct dpaa2_fl_entry *fle, u16 offset)
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+{
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+	fle->format_offset &= cpu_to_le16(~FL_OFFSET_MASK);
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+	fle->format_offset |= cpu_to_le16(offset);
609
+}
610
+
611
+/**
612
+ * dpaa2_fl_get_format() - Get the format field in the FLE
613
+ * @fle: the given frame list entry
614
+ *
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+ * Return the format.
616
+ */
617
+static inline enum dpaa2_fl_format dpaa2_fl_get_format(const struct dpaa2_fl_entry *fle)
618
+{
619
+	return (enum dpaa2_fl_format)((le16_to_cpu(fle->format_offset) >>
620
+				       FL_FORMAT_SHIFT) & FL_FORMAT_MASK);
621
+}
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+
623
+/**
624
+ * dpaa2_fl_set_format() - Set the format field of FLE
625
+ * @fle: the given frame list entry
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+ * @format: the format needs to be set in frame list entry
627
+ */
628
+static inline void dpaa2_fl_set_format(struct dpaa2_fl_entry *fle,
629
+				       enum dpaa2_fl_format format)
630
+{
631
+	fle->format_offset &= cpu_to_le16(~(FL_FORMAT_MASK << FL_FORMAT_SHIFT));
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+	fle->format_offset |= cpu_to_le16(format << FL_FORMAT_SHIFT);
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+}
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+
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+/**
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+ * dpaa2_fl_get_bpid() - Get the bpid field in the FLE
637
+ * @fle: the given frame list entry
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+ *
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+ * Return the buffer pool id.
640
+ */
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+static inline u16 dpaa2_fl_get_bpid(const struct dpaa2_fl_entry *fle)
642
+{
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+	return le16_to_cpu(fle->bpid) & FL_BPID_MASK;
644
+}
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+
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+/**
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+ * dpaa2_fl_set_bpid() - Set the bpid field of FLE
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+ * @fle: the given frame list entry
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+ * @bpid: buffer pool id to be set
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+ */
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+static inline void dpaa2_fl_set_bpid(struct dpaa2_fl_entry *fle, u16 bpid)
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+{
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+	fle->bpid &= cpu_to_le16(~(FL_BPID_MASK));
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+	fle->bpid |= cpu_to_le16(bpid);
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+}
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+
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+/**
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+ * dpaa2_fl_is_final() - Check final bit in FLE
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+ * @fle: the given frame list entry
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+ *
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+ * Return bool.
662
+ */
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+static inline bool dpaa2_fl_is_final(const struct dpaa2_fl_entry *fle)
664
+{
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+	return !!(le16_to_cpu(fle->format_offset) >> FL_FINAL_FLAG_SHIFT);
666
+}
667
+
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+/**
669
+ * dpaa2_fl_set_final() - Set the final bit in FLE
670
+ * @fle: the given frame list entry
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+ * @final: the final boolean to be set
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+ */
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+static inline void dpaa2_fl_set_final(struct dpaa2_fl_entry *fle, bool final)
674
+{
675
+	fle->format_offset &= cpu_to_le16((~(FL_FINAL_FLAG_MASK <<
676
+					     FL_FINAL_FLAG_SHIFT)) & 0xFFFF);
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+	fle->format_offset |= cpu_to_le16(final << FL_FINAL_FLAG_SHIFT);
678
+}
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+
438680 #endif /* __FSL_DPAA2_FD_H */