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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /drivers/scsi/qla2xxx/qla_dsd.h | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_dsd.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_dsd.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_dsd.h b/drivers/scsi/qla2xxx/qla_dsd.h new file mode 100644 index 000000000..20788054b --- /dev/null +++ b/drivers/scsi/qla2xxx/qla_dsd.h @@ -0,0 +1,32 @@ +#ifndef _QLA_DSD_H_ +#define _QLA_DSD_H_ + +#include <asm/unaligned.h> + +/* 32-bit data segment descriptor (8 bytes) */ +struct dsd32 { + __le32 address; + __le32 length; +}; + +static inline void append_dsd32(struct dsd32 **dsd, struct scatterlist *sg) +{ + put_unaligned_le32(sg_dma_address(sg), &(*dsd)->address); + put_unaligned_le32(sg_dma_len(sg), &(*dsd)->length); + (*dsd)++; +} + +/* 64-bit data segment descriptor (12 bytes) */ +struct dsd64 { + __le64 address; + __le32 length; +} __packed; + +static inline void append_dsd64(struct dsd64 **dsd, struct scatterlist *sg) +{ + put_unaligned_le64(sg_dma_address(sg), &(*dsd)->address); + put_unaligned_le32(sg_dma_len(sg), &(*dsd)->length); + (*dsd)++; +} + +#endif |