162306a36Sopenharmony_ci#ifndef _QLA_DSD_H_
262306a36Sopenharmony_ci#define _QLA_DSD_H_
362306a36Sopenharmony_ci
462306a36Sopenharmony_ci#include <asm/unaligned.h>
562306a36Sopenharmony_ci
662306a36Sopenharmony_ci/* 32-bit data segment descriptor (8 bytes) */
762306a36Sopenharmony_cistruct dsd32 {
862306a36Sopenharmony_ci	__le32 address;
962306a36Sopenharmony_ci	__le32 length;
1062306a36Sopenharmony_ci};
1162306a36Sopenharmony_ci
1262306a36Sopenharmony_cistatic inline void append_dsd32(struct dsd32 **dsd, struct scatterlist *sg)
1362306a36Sopenharmony_ci{
1462306a36Sopenharmony_ci	put_unaligned_le32(sg_dma_address(sg), &(*dsd)->address);
1562306a36Sopenharmony_ci	put_unaligned_le32(sg_dma_len(sg),     &(*dsd)->length);
1662306a36Sopenharmony_ci	(*dsd)++;
1762306a36Sopenharmony_ci}
1862306a36Sopenharmony_ci
1962306a36Sopenharmony_ci/* 64-bit data segment descriptor (12 bytes) */
2062306a36Sopenharmony_cistruct dsd64 {
2162306a36Sopenharmony_ci	__le64 address;
2262306a36Sopenharmony_ci	__le32 length;
2362306a36Sopenharmony_ci} __packed;
2462306a36Sopenharmony_ci
2562306a36Sopenharmony_cistatic inline void append_dsd64(struct dsd64 **dsd, struct scatterlist *sg)
2662306a36Sopenharmony_ci{
2762306a36Sopenharmony_ci	put_unaligned_le64(sg_dma_address(sg), &(*dsd)->address);
2862306a36Sopenharmony_ci	put_unaligned_le32(sg_dma_len(sg),     &(*dsd)->length);
2962306a36Sopenharmony_ci	(*dsd)++;
3062306a36Sopenharmony_ci}
3162306a36Sopenharmony_ci
3262306a36Sopenharmony_ci#endif
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