1 files changed, 121 insertions, 0 deletions
diff --git a/include/fsl-mc/fsl_dpaa_fd.h b/include/fsl-mc/fsl_dpaa_fd.h
new file mode 100644
index 0000000000..6d0ffa8265
--- /dev/null
+++ b/include/fsl-mc/fsl_dpaa_fd.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef __FSL_DPAA_FD_H
+#define __FSL_DPAA_FD_H
+
+/* Place-holder for FDs, we represent it via the simplest form that we need for
+ * now. Different overlays may be needed to support different options, etc. (It
+ * is impractical to define One True Struct, because the resulting encoding
+ * routines (lots of read-modify-writes) would be worst-case performance whether
+ * or not circumstances required them.) */
+struct dpaa_fd {
+	union {
+		u32 words[8];
+		struct dpaa_fd_simple {
+			u32 addr_lo;
+			u32 addr_hi;
+			u32 len;
+			/* offset in the MS 16 bits, BPID in the LS 16 bits */
+			u32 bpid_offset;
+			u32 frc; /* frame context */
+			/* "err", "va", "cbmt", "asal", [...] */
+			u32 ctrl;
+			/* flow context */
+			u32 flc_lo;
+			u32 flc_hi;
+		} simple;
+	};
+};
+
+enum dpaa_fd_format {
+	dpaa_fd_single = 0,
+	dpaa_fd_list,
+	dpaa_fd_sg
+};
+
+static inline u64 ldpaa_fd_get_addr(const struct dpaa_fd *fd)
+{
+	return (u64)((((uint64_t)fd->simple.addr_hi) << 32)
+				+ fd->simple.addr_lo);
+}
+
+static inline void ldpaa_fd_set_addr(struct dpaa_fd *fd, u64 addr)
+{
+	fd->simple.addr_hi = upper_32_bits(addr);
+	fd->simple.addr_lo = lower_32_bits(addr);
+}
+
+static inline u32 ldpaa_fd_get_len(const struct dpaa_fd *fd)
+{
+	return fd->simple.len;
+}
+
+static inline void ldpaa_fd_set_len(struct dpaa_fd *fd, u32 len)
+{
+	fd->simple.len = len;
+}
+
+static inline uint16_t ldpaa_fd_get_offset(const struct dpaa_fd *fd)
+{
+	return (uint16_t)(fd->simple.bpid_offset >> 16) & 0x0FFF;
+}
+
+static inline void ldpaa_fd_set_offset(struct dpaa_fd *fd, uint16_t offset)
+{
+	fd->simple.bpid_offset &= 0xF000FFFF;
+	fd->simple.bpid_offset |= (u32)offset << 16;
+}
+
+static inline uint16_t ldpaa_fd_get_bpid(const struct dpaa_fd *fd)
+{
+	return (uint16_t)(fd->simple.bpid_offset & 0xFFFF);
+}
+
+static inline void ldpaa_fd_set_bpid(struct dpaa_fd *fd, uint16_t bpid)
+{
+	fd->simple.bpid_offset &= 0xFFFF0000;
+	fd->simple.bpid_offset |= (u32)bpid;
+}
+
+/* When frames are dequeued, the FDs show up inside "dequeue" result structures
+ * (if at all, not all dequeue results contain valid FDs). This structure type
+ * is intentionally defined without internal detail, and the only reason it
+ * isn't declared opaquely (without size) is to allow the user to provide
+ * suitably-sized (and aligned) memory for these entries. */
+struct ldpaa_dq {
+	uint32_t dont_manipulate_directly[16];
+};
+
+/* Parsing frame dequeue results */
+#define LDPAA_DQ_STAT_FQEMPTY       0x80
+#define LDPAA_DQ_STAT_HELDACTIVE    0x40
+#define LDPAA_DQ_STAT_FORCEELIGIBLE 0x20
+#define LDPAA_DQ_STAT_VALIDFRAME    0x10
+#define LDPAA_DQ_STAT_ODPVALID      0x04
+#define LDPAA_DQ_STAT_VOLATILE      0x02
+#define LDPAA_DQ_STAT_EXPIRED       0x01
+uint32_t ldpaa_dq_flags(const struct ldpaa_dq *);
+static inline int ldpaa_dq_is_pull(const struct ldpaa_dq *dq)
+{
+	return (int)(ldpaa_dq_flags(dq) & LDPAA_DQ_STAT_VOLATILE);
+}
+static inline int ldpaa_dq_is_pull_complete(
+					const struct ldpaa_dq *dq)
+{
+	return (int)(ldpaa_dq_flags(dq) & LDPAA_DQ_STAT_EXPIRED);
+}
+/* seqnum/odpid are valid only if VALIDFRAME and ODPVALID flags are TRUE */
+uint16_t ldpaa_dq_seqnum(const struct ldpaa_dq *);
+uint16_t ldpaa_dq_odpid(const struct ldpaa_dq *);
+uint32_t ldpaa_dq_fqid(const struct ldpaa_dq *);
+uint32_t ldpaa_dq_byte_count(const struct ldpaa_dq *);
+uint32_t ldpaa_dq_frame_count(const struct ldpaa_dq *);
+uint32_t ldpaa_dq_fqd_ctx_hi(const struct ldpaa_dq *);
+uint32_t ldpaa_dq_fqd_ctx_lo(const struct ldpaa_dq *);
+/* get the Frame Descriptor */
+const struct dpaa_fd *ldpaa_dq_fd(const struct ldpaa_dq *);
+
+#endif /* __FSL_DPAA_FD_H */