forked from Minki/linux
soc: fsl: dpio: add frame list format support
Add support for dpaa2_fd_list format, i.e. dpaa2_fl_entry structure and accessors. Frame list entries (FLEs) are similar, but not identical to FDs: + "F" (final) bit - FMT[b'01] is reserved - DD, SC, DROPP bits (covered by "FD compatibility" field in FLE case) - FLC[5:0] not used for stashing Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Acked-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Horia Geantă
Herbert Xu
parent
48c43de0b5
commit
009447a038
@ -66,6 +66,15 @@ struct dpaa2_fd {
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#define SG_BPID_MASK 0x3FFF
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#define SG_FINAL_FLAG_MASK 0x1
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#define SG_FINAL_FLAG_SHIFT 15
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#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
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/* Error bits in FD CTRL */
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#define FD_CTRL_ERR_MASK 0x000000FF
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@ -435,4 +444,237 @@ static inline void dpaa2_sg_set_final(struct dpaa2_sg_entry *sg, bool final)
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sg->format_offset |= cpu_to_le16(final << SG_FINAL_FLAG_SHIFT);
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}
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/**
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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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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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* 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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* 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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* 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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* 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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* 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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* 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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* 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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* 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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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) >>
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FL_SHORT_LEN_FLAG_SHIFT) & FL_SHORT_LEN_FLAG_MASK);
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}
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/**
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* dpaa2_fl_get_len() - Get the length in the FLE
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* @fle: the given frame list entry
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*
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* 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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return le32_to_cpu(fle->len);
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}
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/**
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* dpaa2_fl_set_len() - Set the length field of FLE
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* @fle: the given frame list entry
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* @len: the length needs to be set in frame list entry
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*/
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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);
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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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*
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* Return the offset.
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*/
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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;
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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);
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}
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/**
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* dpaa2_fl_get_format() - Get the format field in the FLE
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* @fle: the given frame list entry
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*
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* Return the format.
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*/
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static inline enum dpaa2_fl_format dpaa2_fl_get_format(const struct dpaa2_fl_entry *fle)
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{
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return (enum dpaa2_fl_format)((le16_to_cpu(fle->format_offset) >>
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FL_FORMAT_SHIFT) & FL_FORMAT_MASK);
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}
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/**
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* dpaa2_fl_set_format() - Set the format field of FLE
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* @fle: the given frame list entry
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* @format: the format needs to be set in frame list entry
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*/
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static inline void dpaa2_fl_set_format(struct dpaa2_fl_entry *fle,
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enum dpaa2_fl_format format)
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{
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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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* dpaa2_fl_get_bpid() - Get the bpid field in the FLE
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* @fle: the given frame list entry
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*
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* Return the buffer pool id.
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*/
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static inline u16 dpaa2_fl_get_bpid(const struct dpaa2_fl_entry *fle)
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{
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return le16_to_cpu(fle->bpid) & FL_BPID_MASK;
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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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* 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.
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*/
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static inline bool dpaa2_fl_is_final(const struct dpaa2_fl_entry *fle)
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{
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return !!(le16_to_cpu(fle->format_offset) >> FL_FINAL_FLAG_SHIFT);
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}
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/**
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* dpaa2_fl_set_final() - Set the final bit in FLE
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* @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)
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{
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fle->format_offset &= cpu_to_le16((~(FL_FINAL_FLAG_MASK <<
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FL_FINAL_FLAG_SHIFT)) & 0xFFFF);
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fle->format_offset |= cpu_to_le16(final << FL_FINAL_FLAG_SHIFT);
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}
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#endif /* __FSL_DPAA2_FD_H */
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