From: Murthy NSSR <nidadavolu.mur...@cavium.com>
These functions help in preparing symmetric crypto request
for Kasumi of both cipher and auth but not cipher+auth in single
xform.
Signed-off-by: Ankur Dwivedi <ankur.dwiv...@cavium.com>
Signed-off-by: Murthy NSSR <nidadavolu.mur...@cavium.com>
Signed-off-by: Nithin Dabilpuram <nithin.dabilpu...@cavium.com>
Signed-off-by: Ragothaman Jayaraman <ragothaman.jayara...@cavium.com>
Signed-off-by: Srisivasubramanian Srinivasan
<srisivasubramanian.sriniva...@cavium.com>
---
drivers/crypto/cpt/base/cpt_ops.c | 545 ++++++++++++++++++++++++++++++++++++++
1 file changed, 545 insertions(+)
diff --git a/drivers/crypto/cpt/base/cpt_ops.c
b/drivers/crypto/cpt/base/cpt_ops.c
index ff7522a..15c3413 100644
--- a/drivers/crypto/cpt/base/cpt_ops.c
+++ b/drivers/crypto/cpt/base/cpt_ops.c
@@ -1933,6 +1933,545 @@ static inline int __attribute__((always_inline))
return 0;
}
+static int
+cpt_kasumi_enc_prep(uint32_t req_flags,
+ uint64_t d_offs,
+ uint64_t d_lens,
+ fc_params_t *params,
+ void *op,
+ void **prep_req)
+{
+ uint32_t size;
+ int32_t inputlen = 0, outputlen = 0;
+ struct cpt_ctx *cpt_ctx;
+ uint32_t mac_len = 0;
+ uint8_t i = 0;
+ cpt_request_info_t *req;
+ buf_ptr_t *buf_p;
+ uint32_t encr_offset, auth_offset;
+ uint32_t encr_data_len, auth_data_len;
+ int flags, m_size;
+ uint8_t *iv_s, *iv_d, iv_len = 8;
+ uint8_t dir = 0;
+ void *m_vaddr, *c_vaddr;
+ uint64_t m_dma, c_dma;
+ uint64_t *offset_vaddr, offset_dma;
+ vq_cmd_word0_t vq_cmd_w0;
+ vq_cmd_word3_t vq_cmd_w3;
+ opcode_info_t opcode;
+ uint8_t *in_buffer;
+ uint32_t g_size_bytes, s_size_bytes;
+ uint64_t dptr_dma, rptr_dma;
+ sg_comp_t *gather_comp;
+ sg_comp_t *scatter_comp;
+
+ buf_p = ¶ms->meta_buf;
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params || !buf_p->vaddr || !buf_p->size)
+ return ERR_BAD_INPUT_ARG;
+#endif
+ m_vaddr = buf_p->vaddr;
+ m_dma = buf_p->dma_addr;
+ m_size = buf_p->size;
+
+ encr_offset = ENCR_OFFSET(d_offs) / 8;
+ auth_offset = AUTH_OFFSET(d_offs) / 8;
+ encr_data_len = ENCR_DLEN(d_lens);
+ auth_data_len = AUTH_DLEN(d_lens);
+
+ cpt_ctx = params->ctx_buf.vaddr;
+ flags = cpt_ctx->zsk_flags;
+ mac_len = cpt_ctx->mac_len;
+
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (flags == 0x0) {
+ /* F8 Mode */
+ if (auth_offset || auth_data_len)
+ return ERR_BAD_INPUT_ARG;
+
+ if (!params->iv_buf)
+ return ERR_BAD_INPUT_ARG;
+ } else if (flags == 0x1) {
+ /* F9 mode */
+ if (encr_offset || encr_data_len)
+ return ERR_BAD_INPUT_ARG;
+
+ if (!params->auth_iv_buf)
+ return ERR_BAD_INPUT_ARG;
+ } else {
+ return ERR_EIO;
+ }
+#endif
+ if (flags == 0x0)
+ iv_s = params->iv_buf;
+ else
+ iv_s = params->auth_iv_buf;
+
+ dir = iv_s[8] & 0x1;
+
+ /*
+ * Save initial space that followed app data for completion code &
+ * alternate completion code to fall in same cache line as app data
+ */
+ m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE;
+ m_dma += COMPLETION_CODE_SIZE;
+ size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) -
+ (uint8_t *)m_vaddr;
+
+ c_vaddr = (uint8_t *)m_vaddr + size;
+ c_dma = m_dma + size;
+ size += sizeof(cpt_res_s_t);
+
+ m_vaddr = (uint8_t *)m_vaddr + size;
+ m_dma += size;
+ m_size -= size;
+
+ /* Reserve memory for cpt request info */
+ req = m_vaddr;
+
+ size = sizeof(cpt_request_info_t);
+ m_vaddr = (uint8_t *)m_vaddr + size;
+ m_dma += size;
+ m_size -= size;
+
+ /* Initialising ctrl and opcode
+ * fields for cpt request
+ */
+
+ req->se_req = SE_CORE_REQ;
+ req->dma_mode = CTRL_DMA_MODE_SGIO;
+
+ opcode.s.major = MAJOR_OP_KASUMI | DMA_MODE;
+
+ /* indicates ECB/CBC, direction, ctx from cptr, iv from dptr */
+ opcode.s.minor = ((1 << 6) | (cpt_ctx->k_ecb << 5) |
+ (dir << 4) | (0 << 3) | (flags & 0x7));
+
+ /*
+ * GP op header, lengths are expected in bits.
+ */
+ vq_cmd_w0.u64 = 0;
+ vq_cmd_w0.s.param1 = htobe16(encr_data_len);
+ vq_cmd_w0.s.param2 = htobe16(auth_data_len);
+ vq_cmd_w0.s.opcode = htobe16(opcode.flags);
+
+ /* consider iv len */
+ if (flags == 0x0) {
+ encr_offset += iv_len;
+ auth_offset += iv_len;
+ }
+
+ /* save space for offset ctrl and iv */
+ offset_vaddr = m_vaddr;
+ offset_dma = m_dma;
+
+ m_vaddr = (uint8_t *)m_vaddr + OFF_CTRL_LEN + iv_len;
+ m_dma += OFF_CTRL_LEN + iv_len;
+ m_size -= OFF_CTRL_LEN + iv_len;
+
+ /* DPTR has SG list */
+ in_buffer = m_vaddr;
+ dptr_dma = m_dma;
+
+ ((uint16_t *)in_buffer)[0] = 0;
+ ((uint16_t *)in_buffer)[1] = 0;
+
+ /* TODO Add error check if space will be sufficient */
+ gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8);
+
+ /*
+ * Input Gather List
+ */
+ i = 0;
+
+ /* Offset control word followed by iv */
+
+ if (flags == 0x0) {
+ inputlen = encr_offset +
+ (RTE_ALIGN(encr_data_len, 8) / 8);
+ outputlen = inputlen;
+ /* iv offset is 0 */
+ *offset_vaddr = htobe64((uint64_t)encr_offset << 16);
+ } else {
+ inputlen = auth_offset +
+ (RTE_ALIGN(auth_data_len, 8) / 8);
+ outputlen = mac_len;
+ /* iv offset is 0 */
+ *offset_vaddr = htobe64((uint64_t)auth_offset);
+ }
+
+ i = fill_sg_comp(gather_comp, i, offset_dma,
+ offset_vaddr, OFF_CTRL_LEN + iv_len);
+
+ /* IV */
+ iv_d = (uint8_t *)offset_vaddr + OFF_CTRL_LEN;
+ memcpy(iv_d, iv_s, iv_len);
+
+ /* input data */
+ size = inputlen - iv_len;
+ if (size) {
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params->src_iov)
+ return ERR_BAD_INPUT_ARG;
+#endif
+ i = fill_sg_comp_from_iov(gather_comp, i,
+ params->src_iov, 0,
+ &size, NULL, 0);
+
+ if (size)
+ return ERR_BAD_INPUT_ARG;
+ }
+ ((uint16_t *)in_buffer)[2] = htobe16(i);
+ g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t);
+
+ /*
+ * Output Scatter List
+ */
+
+ i = 0;
+ scatter_comp =
+ (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes);
+
+ if (flags == 0x1) {
+ /* IV in SLIST only for F8 */
+ iv_len = 0;
+ }
+
+ /* IV */
+ if (iv_len) {
+
+ i = fill_sg_comp(scatter_comp, i,
+ offset_dma + OFF_CTRL_LEN,
+ (uint8_t *)offset_vaddr + OFF_CTRL_LEN,
+ iv_len);
+ }
+
+ /* Add output data */
+ if (req_flags & VALID_MAC_BUF) {
+ size = outputlen - iv_len - mac_len;
+ if (size) {
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params->dst_iov)
+ return ERR_BAD_INPUT_ARG;
+#endif
+ i = fill_sg_comp_from_iov(scatter_comp, i,
+ params->dst_iov, 0,
+ &size, NULL, 0);
+
+ if (size)
+ return ERR_BAD_INPUT_ARG;
+ }
+
+ /* mac data */
+ if (mac_len) {
+ i = fill_sg_comp_from_buf(scatter_comp, i,
+ ¶ms->mac_buf);
+ }
+ } else {
+ /* Output including mac */
+ size = outputlen - iv_len;
+ if (size) {
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params->dst_iov)
+ return ERR_BAD_INPUT_ARG;
+#endif
+ i = fill_sg_comp_from_iov(scatter_comp, i,
+ params->dst_iov, 0,
+ &size, NULL, 0);
+
+ if (size)
+ return ERR_BAD_INPUT_ARG;
+ }
+ }
+ ((uint16_t *)in_buffer)[3] = htobe16(i);
+ s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t);
+
+ size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE;
+
+ /* This is DPTR len incase of SG mode */
+ vq_cmd_w0.s.dlen = htobe16(size);
+
+ m_vaddr = (uint8_t *)m_vaddr + size;
+ m_dma += size;
+ m_size -= size;
+
+ /* cpt alternate completion address saved earlier */
+ req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8);
+ *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT);
+ rptr_dma = c_dma - 8;
+
+ req->ist.ei1 = dptr_dma;
+ req->ist.ei2 = rptr_dma;
+
+ /* First 16-bit swap then 64-bit swap */
+ /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions
+ * to eliminate all the swapping
+ */
+ vq_cmd_w0.u64 = htobe64(vq_cmd_w0.u64);
+
+ /* vq command w3 */
+ vq_cmd_w3.u64 = 0;
+ vq_cmd_w3.s.grp = 0;
+ vq_cmd_w3.s.cptr = params->ctx_buf.dma_addr +
+ offsetof(struct cpt_ctx, k_ctx);
+
+ /* 16 byte aligned cpt res address */
+ req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr);
+ *req->completion_addr = COMPLETION_CODE_INIT;
+ req->comp_baddr = c_dma;
+
+ /* Fill microcode part of instruction */
+ req->ist.ei0 = vq_cmd_w0.u64;
+ req->ist.ei3 = vq_cmd_w3.u64;
+
+ req->op = op;
+
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!(m_size >= 0)) {
+ PMD_TX_LOG(ERR, "!!! Buffer Overflow %d\n",
+ m_size);
+ abort();
+ }
+#endif
+ *prep_req = req;
+ return 0;
+}
+
+
+static inline int
+cpt_kasumi_dec_prep(uint32_t req_flags,
+ uint64_t d_offs,
+ uint64_t d_lens,
+ fc_params_t *params,
+ void *op,
+ void **prep_req)
+{
+ uint32_t size;
+ int32_t inputlen = 0, outputlen;
+ struct cpt_ctx *cpt_ctx;
+ uint8_t i = 0, iv_len = 8;
+ cpt_request_info_t *req;
+ buf_ptr_t *buf_p;
+ uint32_t encr_offset;
+ uint32_t encr_data_len;
+ int flags, m_size;
+ uint8_t dir = 0;
+ void *m_vaddr, *c_vaddr;
+ uint64_t m_dma, c_dma;
+ uint64_t *offset_vaddr, offset_dma;
+ vq_cmd_word0_t vq_cmd_w0;
+ vq_cmd_word3_t vq_cmd_w3;
+ opcode_info_t opcode;
+ uint8_t *in_buffer;
+ uint32_t g_size_bytes, s_size_bytes;
+ uint64_t dptr_dma, rptr_dma;
+ sg_comp_t *gather_comp;
+ sg_comp_t *scatter_comp;
+
+ (void)req_flags;
+ buf_p = ¶ms->meta_buf;
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params || !buf_p->vaddr || !buf_p->size)
+ return ERR_BAD_INPUT_ARG;
+#endif
+ m_vaddr = buf_p->vaddr;
+ m_dma = buf_p->dma_addr;
+ m_size = buf_p->size;
+
+ encr_offset = ENCR_OFFSET(d_offs) / 8;
+ encr_data_len = ENCR_DLEN(d_lens);
+
+ cpt_ctx = params->ctx_buf.vaddr;
+ flags = cpt_ctx->zsk_flags;
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params->iv_buf)
+ return ERR_BAD_INPUT_ARG;
+#endif
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (flags != 0) {
+ /* Dec not supported for F9 */
+ return ERR_BAD_INPUT_ARG;
+ }
+#endif
+ /*
+ * Save initial space that followed app data for completion code &
+ * alternate completion code to fall in same cache line as app data
+ */
+ m_vaddr = (uint8_t *)m_vaddr + COMPLETION_CODE_SIZE;
+ m_dma += COMPLETION_CODE_SIZE;
+ size = (uint8_t *)RTE_PTR_ALIGN((uint8_t *)m_vaddr, 16) -
+ (uint8_t *)m_vaddr;
+
+ c_vaddr = (uint8_t *)m_vaddr + size;
+ c_dma = m_dma + size;
+ size += sizeof(cpt_res_s_t);
+
+ m_vaddr = (uint8_t *)m_vaddr + size;
+ m_dma += size;
+ m_size -= size;
+
+ /* Reserve memory for cpt request info */
+ req = m_vaddr;
+
+ size = sizeof(cpt_request_info_t);
+ m_vaddr = (uint8_t *)m_vaddr + size;
+ m_dma += size;
+ m_size -= size;
+
+ /* Initialising ctrl and opcode
+ * fields for cpt req
+ */
+
+ req->se_req = SE_CORE_REQ;
+ req->dma_mode = CTRL_DMA_MODE_SGIO;
+
+ opcode.s.major = MAJOR_OP_KASUMI | DMA_MODE;
+
+ /* indicates ECB/CBC, direction, ctx from cptr, iv from dptr */
+ opcode.s.minor = ((1 << 6) | (cpt_ctx->k_ecb << 5) |
+ (dir << 4) | (0 << 3) | (flags & 0x7));
+
+ /*
+ * GP op header, lengths are expected in bits.
+ */
+ vq_cmd_w0.u64 = 0;
+ vq_cmd_w0.s.param1 = htobe16(encr_data_len);
+ vq_cmd_w0.s.opcode = htobe16(opcode.flags);
+
+ /* consider iv len */
+ encr_offset += iv_len;
+
+ inputlen = iv_len + (RTE_ALIGN(encr_data_len, 8) / 8);
+ outputlen = inputlen;
+
+ /* save space for offset ctrl & iv */
+ offset_vaddr = m_vaddr;
+ offset_dma = m_dma;
+
+ m_vaddr = (uint8_t *)m_vaddr + OFF_CTRL_LEN + iv_len;
+ m_dma += OFF_CTRL_LEN + iv_len;
+ m_size -= OFF_CTRL_LEN + iv_len;
+
+ /* DPTR has SG list */
+ in_buffer = m_vaddr;
+ dptr_dma = m_dma;
+
+ ((uint16_t *)in_buffer)[0] = 0;
+ ((uint16_t *)in_buffer)[1] = 0;
+
+ /* TODO Add error check if space will be sufficient */
+ gather_comp = (sg_comp_t *)((uint8_t *)m_vaddr + 8);
+
+ /*
+ * Input Gather List
+ */
+ i = 0;
+
+ /* Offset control word followed by iv */
+ *offset_vaddr = htobe64((uint64_t)encr_offset << 16);
+
+ i = fill_sg_comp(gather_comp, i, offset_dma, offset_vaddr,
+ OFF_CTRL_LEN + iv_len);
+
+
+ /* IV */
+ memcpy((uint8_t *)offset_vaddr + OFF_CTRL_LEN,
+ params->iv_buf, iv_len);
+
+ /* Add input data */
+ size = inputlen - iv_len;
+ if (size) {
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params->src_iov)
+ return ERR_BAD_INPUT_ARG;
+#endif
+ i = fill_sg_comp_from_iov(gather_comp, i,
+ params->src_iov,
+ 0, &size, NULL, 0);
+ if (size)
+ return ERR_BAD_INPUT_ARG;
+ }
+ ((uint16_t *)in_buffer)[2] = htobe16(i);
+ g_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t);
+
+ /*
+ * Output Scatter List
+ */
+
+ i = 0;
+ scatter_comp =
+ (sg_comp_t *)((uint8_t *)gather_comp + g_size_bytes);
+
+ /* IV */
+ i = fill_sg_comp(scatter_comp, i,
+ offset_dma + OFF_CTRL_LEN,
+ (uint8_t *)offset_vaddr + OFF_CTRL_LEN,
+ iv_len);
+
+ /* Add output data */
+ size = outputlen - iv_len;
+ if (size) {
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!params->dst_iov)
+ return ERR_BAD_INPUT_ARG;
+#endif
+ i = fill_sg_comp_from_iov(scatter_comp, i,
+ params->dst_iov, 0,
+ &size, NULL, 0);
+ if (size)
+ return ERR_BAD_INPUT_ARG;
+ }
+ ((uint16_t *)in_buffer)[3] = htobe16(i);
+ s_size_bytes = ((i + 3) / 4) * sizeof(sg_comp_t);
+
+ size = g_size_bytes + s_size_bytes + SG_LIST_HDR_SIZE;
+
+ /* This is DPTR len incase of SG mode */
+ vq_cmd_w0.s.dlen = htobe16(size);
+
+ m_vaddr = (uint8_t *)m_vaddr + size;
+ m_dma += size;
+ m_size -= size;
+
+ /* cpt alternate completion address saved earlier */
+ req->alternate_caddr = (uint64_t *)((uint8_t *)c_vaddr - 8);
+ *req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT);
+ rptr_dma = c_dma - 8;
+
+ req->ist.ei1 = dptr_dma;
+ req->ist.ei2 = rptr_dma;
+
+ /* First 16-bit swap then 64-bit swap */
+ /* TODO: HACK: Reverse the vq_cmd and cpt_req bit field definitions
+ * to eliminate all the swapping
+ */
+ vq_cmd_w0.u64 = htobe64(vq_cmd_w0.u64);
+
+ /* vq command w3 */
+ vq_cmd_w3.u64 = 0;
+ vq_cmd_w3.s.grp = 0;
+ vq_cmd_w3.s.cptr = params->ctx_buf.dma_addr +
+ offsetof(struct cpt_ctx, k_ctx);
+
+ /* 16 byte aligned cpt res address */
+ req->completion_addr = (uint64_t *)((uint8_t *)c_vaddr);
+ *req->completion_addr = COMPLETION_CODE_INIT;
+ req->comp_baddr = c_dma;
+
+ /* Fill microcode part of instruction */
+ req->ist.ei0 = vq_cmd_w0.u64;
+ req->ist.ei3 = vq_cmd_w3.u64;
+
+ req->op = op;
+
+#ifdef CPTVF_STRICT_PARAM_CHECK
+ if (!(m_size >= 0))
+ abort();
+#endif
+ *prep_req = req;
+ return 0;
+}
+
void *
cpt_fc_dec_hmac_prep(uint32_t flags,
uint64_t d_offs,
@@ -1953,6 +2492,9 @@ static inline int __attribute__((always_inline))
} else if (fc_type == ZUC_SNOW3G) {
ret = cpt_zuc_snow3g_dec_prep(flags, d_offs, d_lens,
fc_params, op, &prep_req);
+ } else if (fc_type == KASUMI) {
+ ret = cpt_kasumi_dec_prep(flags, d_offs, d_lens,
+ fc_params, op, &prep_req);
} else {
/*
* For AUTH_ONLY case,
@@ -1986,6 +2528,9 @@ static inline int __attribute__((always_inline))
} else if (fc_type == ZUC_SNOW3G) {
ret = cpt_zuc_snow3g_enc_prep(flags, d_offs, d_lens,
fc_params, op, &prep_req);
+ } else if (fc_type == KASUMI) {
+ ret = cpt_kasumi_enc_prep(flags, d_offs, d_lens,
+ fc_params, op, &prep_req);
} else {
ret = ERR_EIO;
}
--
1.9.3
