diff options
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe.h')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe.h b/drivers/infiniband/sw/rxe/rxe.h index a696af81e4a5..ecdba2fce083 100644 --- a/drivers/infiniband/sw/rxe/rxe.h +++ b/drivers/infiniband/sw/rxe/rxe.h @@ -50,6 +50,7 @@ #include <rdma/ib_umem.h> #include <rdma/ib_cache.h> #include <rdma/ib_addr.h> +#include <crypto/hash.h> #include "rxe_net.h" #include "rxe_opcode.h" @@ -64,6 +65,25 @@ #define RXE_ROCE_V2_SPORT (0xc000) +static inline u32 rxe_crc32(struct rxe_dev *rxe, + u32 crc, void *next, size_t len) +{ + int err; + + SHASH_DESC_ON_STACK(shash, rxe->tfm); + + shash->tfm = rxe->tfm; + shash->flags = 0; + *(u32 *)shash_desc_ctx(shash) = crc; + err = crypto_shash_update(shash, next, len); + if (unlikely(err)) { + pr_warn_ratelimited("failed crc calculation, err: %d\n", err); + return crc32_le(crc, next, len); + } + + return *(u32 *)shash_desc_ctx(shash); +} + int rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu); int rxe_add(struct rxe_dev *rxe, unsigned int mtu); |