diff options
author | Tom Rini <trini@konsulko.com> | 2015-04-24 13:43:24 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2015-04-24 13:43:24 -0400 |
commit | 3f6dcdb9cd4dbda226a1474f1e9398413e906b41 (patch) | |
tree | fb3a7d7873e9c14a3733197e4cc028ce90827970 /include/fsl-mc/fsl_dpaa_fd.h | |
parent | d8c1d5d5fb6eafbc532982125f006e49f2c40e71 (diff) | |
parent | ab10d73d2fc13bd5baf5024e54ad92641d238bdb (diff) |
Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq
Diffstat (limited to 'include/fsl-mc/fsl_dpaa_fd.h')
-rw-r--r-- | include/fsl-mc/fsl_dpaa_fd.h | 121 |
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 */ |