diff options
Diffstat (limited to 'drivers/infiniband/sw/siw/siw.h')
| -rw-r--r-- | drivers/infiniband/sw/siw/siw.h | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/drivers/infiniband/sw/siw/siw.h b/drivers/infiniband/sw/siw/siw.h index ea5eee50dc39..385067e07faf 100644 --- a/drivers/infiniband/sw/siw/siw.h +++ b/drivers/infiniband/sw/siw/siw.h @@ -10,9 +10,9 @@ #include <rdma/restrack.h> #include <linux/socket.h> #include <linux/skbuff.h> -#include <crypto/hash.h> #include <linux/crc32.h> #include <linux/crc32c.h> +#include <linux/unaligned.h> #include <rdma/siw-abi.h> #include "iwarp.h" @@ -289,7 +289,8 @@ struct siw_rx_stream { union iwarp_hdr hdr; struct mpa_trailer trailer; - struct shash_desc *mpa_crc_hd; + u32 mpa_crc; + bool mpa_crc_enabled; /* * For each FPDU, main RX loop runs through 3 stages: @@ -390,7 +391,8 @@ struct siw_iwarp_tx { int burst; int bytes_unsent; /* ddp payload bytes */ - struct shash_desc *mpa_crc_hd; + u32 mpa_crc; + bool mpa_crc_enabled; u8 do_crc : 1; /* do crc for segment */ u8 use_sendpage : 1; /* send w/o copy */ @@ -496,7 +498,6 @@ extern u_char mpa_version; extern const bool peer_to_peer; extern struct task_struct *siw_tx_thread[]; -extern struct crypto_shash *siw_crypto_shash; extern struct iwarp_msg_info iwarp_pktinfo[RDMAP_TERMINATE + 1]; /* QP general functions */ @@ -668,6 +669,30 @@ static inline struct siw_sqe *irq_alloc_free(struct siw_qp *qp) return NULL; } +static inline void siw_crc_init(u32 *crc) +{ + *crc = ~0; +} + +static inline void siw_crc_update(u32 *crc, const void *data, size_t len) +{ + *crc = crc32c(*crc, data, len); +} + +static inline void siw_crc_final(u32 *crc, u8 out[4]) +{ + put_unaligned_le32(~*crc, out); +} + +static inline void siw_crc_oneshot(const void *data, size_t len, u8 out[4]) +{ + u32 crc; + + siw_crc_init(&crc); + siw_crc_update(&crc, data, len); + return siw_crc_final(&crc, out); +} + static inline __wsum siw_csum_update(const void *buff, int len, __wsum sum) { return (__force __wsum)crc32c((__force __u32)sum, buff, len); @@ -676,8 +701,8 @@ static inline __wsum siw_csum_update(const void *buff, int len, __wsum sum) static inline __wsum siw_csum_combine(__wsum csum, __wsum csum2, int offset, int len) { - return (__force __wsum)__crc32c_le_combine((__force __u32)csum, - (__force __u32)csum2, len); + return (__force __wsum)crc32c_combine((__force __u32)csum, + (__force __u32)csum2, len); } static inline void siw_crc_skb(struct siw_rx_stream *srx, unsigned int len) @@ -686,11 +711,11 @@ static inline void siw_crc_skb(struct siw_rx_stream *srx, unsigned int len) .update = siw_csum_update, .combine = siw_csum_combine, }; - __wsum crc = *(u32 *)shash_desc_ctx(srx->mpa_crc_hd); + __wsum crc = (__force __wsum)srx->mpa_crc; crc = __skb_checksum(srx->skb, srx->skb_offset, len, crc, &siw_cs_ops); - *(u32 *)shash_desc_ctx(srx->mpa_crc_hd) = crc; + srx->mpa_crc = (__force u32)crc; } #define siw_dbg(ibdev, fmt, ...) \ |