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Add jerasure EC support (reed_sol_van, others are slower) (not tested yet)

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Vitaliy Filippov
2020-12-04 11:47:27 +03:00
parent 5596ad8997
commit a4c46ba745
13 changed files with 669 additions and 254 deletions
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osd_rmw.h
+11 -2
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@@ -26,11 +26,13 @@ struct osd_rmw_stripe_t
bool missing;
};
// Here pg_minsize is the number of data chunks, not the minimum number of alive OSDs for the PG to operate
void split_stripes(uint64_t pg_minsize, uint32_t bs_block_size, uint32_t start, uint32_t len, osd_rmw_stripe_t *stripes);
void reconstruct_stripe_xor(osd_rmw_stripe_t *stripes, int pg_size, int role);
void reconstruct_stripes_xor(osd_rmw_stripe_t *stripes, int pg_size);
int extend_missing_stripes(osd_rmw_stripe_t *stripes, osd_num_t *osd_set, int minsize, int size);
int extend_missing_stripes(osd_rmw_stripe_t *stripes, osd_num_t *osd_set, int pg_minsize, int pg_size);
void* alloc_read_buffer(osd_rmw_stripe_t *stripes, int read_pg_size, uint64_t add_size);
@@ -38,3 +40,10 @@ void* calc_rmw(void *request_buf, osd_rmw_stripe_t *stripes, uint64_t *read_osd_
uint64_t pg_size, uint64_t pg_minsize, uint64_t pg_cursize, uint64_t *write_osd_set, uint64_t chunk_size);
void calc_rmw_parity_xor(osd_rmw_stripe_t *stripes, int pg_size, uint64_t *read_osd_set, uint64_t *write_osd_set, uint32_t chunk_size);
void use_jerasure(int pg_size, int pg_minsize, bool use);
void reconstruct_stripes_jerasure(osd_rmw_stripe_t *stripes, int pg_size, int pg_minsize);
void calc_rmw_parity_jerasure(osd_rmw_stripe_t *stripes, int pg_size, int pg_minsize,
uint64_t *read_osd_set, uint64_t *write_osd_set, uint32_t chunk_size);