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Support separate output buffers in ccr(4).

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Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D24545
This commit is contained in:
John Baldwin 2020-05-25 22:23:13 +00:00
parent ba63e5e701
commit 2adc3c9417
1 changed files with 71 additions and 36 deletions
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107
sys/dev/cxgbe/crypto/t4_crypto.c
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@ -193,13 +193,16 @@ struct ccr_softc {
/*
* Pre-allocate S/G lists used when preparing a work request.
* 'sg_crp' contains an sglist describing the entire buffer
* for a 'struct cryptop'. 'sg_ulptx' is used to describe
* the data the engine should DMA as input via ULPTX_SGL.
* 'sg_dsgl' is used to describe the destination that cipher
* text and a tag should be written to.
* 'sg_input' contains an sglist describing the entire input
* buffer for a 'struct cryptop'. 'sg_output' contains an
* sglist describing the entire output buffer. 'sg_ulptx' is
* used to describe the data the engine should DMA as input
* via ULPTX_SGL. 'sg_dsgl' is used to describe the
* destination that cipher text and a tag should be written
* to.
*/
struct sglist *sg_crp;
struct sglist *sg_input;
struct sglist *sg_output;
struct sglist *sg_ulptx;
struct sglist *sg_dsgl;
@ -495,7 +498,7 @@ ccr_hash(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
} else {
imm_len = 0;
sglist_reset(sc->sg_ulptx);
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
@ -617,10 +620,14 @@ ccr_blkcipher(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
op_type = CHCR_ENCRYPT_OP;
else
op_type = CHCR_DECRYPT_OP;
sglist_reset(sc->sg_dsgl);
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_crp,
crp->crp_payload_start, crp->crp_payload_length);
if (CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_output,
crp->crp_payload_output_start, crp->crp_payload_length);
else
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
dsgl_nsegs = ccr_count_sgl(sc->sg_dsgl, DSGL_SGE_MAXLEN);
@ -645,7 +652,7 @@ ccr_blkcipher(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
} else {
imm_len = 0;
sglist_reset(sc->sg_ulptx);
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
@ -844,13 +851,21 @@ ccr_eta(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
iv_len + crp->crp_aad_length);
if (error)
return (error);
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_crp,
crp->crp_payload_start, crp->crp_payload_length);
if (CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_output,
crp->crp_payload_output_start, crp->crp_payload_length);
else
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
if (op_type == CHCR_ENCRYPT_OP) {
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_crp,
crp->crp_digest_start, hash_size_in_response);
if (CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_output,
crp->crp_digest_start, hash_size_in_response);
else
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_input,
crp->crp_digest_start, hash_size_in_response);
if (error)
return (error);
}
@ -903,17 +918,17 @@ ccr_eta(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
imm_len = 0;
sglist_reset(sc->sg_ulptx);
if (crp->crp_aad_length != 0) {
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_aad_start, crp->crp_aad_length);
if (error)
return (error);
}
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
if (op_type == CHCR_DECRYPT_OP) {
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_digest_start, hash_size_in_response);
if (error)
return (error);
@ -1153,13 +1168,21 @@ ccr_gcm(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
crp->crp_aad_length);
if (error)
return (error);
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_crp,
crp->crp_payload_start, crp->crp_payload_length);
if (CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_output,
crp->crp_payload_output_start, crp->crp_payload_length);
else
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
if (op_type == CHCR_ENCRYPT_OP) {
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_crp,
crp->crp_digest_start, hash_size_in_response);
if (CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_output,
crp->crp_digest_start, hash_size_in_response);
else
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_input,
crp->crp_digest_start, hash_size_in_response);
if (error)
return (error);
}
@ -1199,17 +1222,17 @@ ccr_gcm(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
imm_len = 0;
sglist_reset(sc->sg_ulptx);
if (crp->crp_aad_length != 0) {
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_aad_start, crp->crp_aad_length);
if (error)
return (error);
}
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
if (op_type == CHCR_DECRYPT_OP) {
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_digest_start, hash_size_in_response);
if (error)
return (error);
@ -1593,13 +1616,21 @@ ccr_ccm(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
aad_len);
if (error)
return (error);
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_crp,
crp->crp_payload_start, crp->crp_payload_length);
if (CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_output,
crp->crp_payload_output_start, crp->crp_payload_length);
else
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
if (op_type == CHCR_ENCRYPT_OP) {
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_crp,
crp->crp_digest_start, hash_size_in_response);
if (CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_output,
crp->crp_digest_start, hash_size_in_response);
else
error = sglist_append_sglist(sc->sg_dsgl, sc->sg_input,
crp->crp_digest_start, hash_size_in_response);
if (error)
return (error);
}
@ -1641,17 +1672,17 @@ ccr_ccm(struct ccr_softc *sc, struct ccr_session *s, struct cryptop *crp)
sglist_reset(sc->sg_ulptx);
if (crp->crp_aad_length != 0) {
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_aad_start, crp->crp_aad_length);
if (error)
return (error);
}
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_payload_start, crp->crp_payload_length);
if (error)
return (error);
if (op_type == CHCR_DECRYPT_OP) {
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_crp,
error = sglist_append_sglist(sc->sg_ulptx, sc->sg_input,
crp->crp_digest_start, hash_size_in_response);
if (error)
return (error);
@ -2080,7 +2111,8 @@ ccr_attach(device_t dev)
sc->adapter->ccr_softc = sc;
mtx_init(&sc->lock, "ccr", NULL, MTX_DEF);
sc->sg_crp = sglist_alloc(TX_SGL_SEGS, M_WAITOK);
sc->sg_input = sglist_alloc(TX_SGL_SEGS, M_WAITOK);
sc->sg_output = sglist_alloc(TX_SGL_SEGS, M_WAITOK);
sc->sg_ulptx = sglist_alloc(TX_SGL_SEGS, M_WAITOK);
sc->sg_dsgl = sglist_alloc(MAX_RX_PHYS_DSGL_SGE, M_WAITOK);
sc->iv_aad_buf = malloc(MAX_AAD_LEN, M_CCR, M_WAITOK);
@ -2108,7 +2140,8 @@ ccr_detach(device_t dev)
free(sc->iv_aad_buf, M_CCR);
sglist_free(sc->sg_dsgl);
sglist_free(sc->sg_ulptx);
sglist_free(sc->sg_crp);
sglist_free(sc->sg_output);
sglist_free(sc->sg_input);
sc->adapter->ccr_softc = NULL;
return (0);
}
@ -2294,7 +2327,7 @@ ccr_probesession(device_t dev, const struct crypto_session_params *csp)
{
unsigned int cipher_mode;
if (csp->csp_flags != 0)
if ((csp->csp_flags & ~(CSP_F_SEPARATE_OUTPUT)) != 0)
return (EINVAL);
switch (csp->csp_mode) {
case CSP_MODE_DIGEST:
@ -2576,7 +2609,9 @@ ccr_process(device_t dev, struct cryptop *crp, int hint)
sc = device_get_softc(dev);
mtx_lock(&sc->lock);
error = ccr_populate_sglist(sc->sg_crp, &crp->crp_buf);
error = ccr_populate_sglist(sc->sg_input, &crp->crp_buf);
if (error == 0 && CRYPTO_HAS_OUTPUT_BUFFER(crp))
error = ccr_populate_sglist(sc->sg_output, &crp->crp_obuf);
if (error) {
sc->stats_sglist_error++;
goto out;