driver/fsl-mc: Add support of MC Flibs
Freescale's Layerscape Management Complex (MC) provide support various
objects like DPRC, DPNI, DPBP and DPIO.
Where:
DPRC: Place holdes for other MC objectes like DPNI, DPBP, DPIO
DPBP: Management of buffer pool
DPIO: Used for used to QBMan portal
DPNI: Represents standard network interface
These objects are used for DPAA ethernet drivers.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Geoff Thorpe <Geoff.Thorpe@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Cristian Sovaiala <cristian.sovaiala@freescale.com>
Signed-off-by: pankaj chauhan <pankaj.chauhan@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/include/fsl-mc/fsl_dpaa_fd.h b/include/fsl-mc/fsl_dpaa_fd.h
new file mode 100644
index 0000000..6d0ffa8
--- /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 */