zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/crypto/caam/caamalg.c b/ap/os/linux/linux-3.4.x/drivers/crypto/caam/caamalg.c
new file mode 100644
index 0000000..534a364
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/crypto/caam/caamalg.c
@@ -0,0 +1,2419 @@
+/*
+ * caam - Freescale FSL CAAM support for crypto API
+ *
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * Based on talitos crypto API driver.
+ *
+ * relationship of job descriptors to shared descriptors (SteveC Dec 10 2008):
+ *
+ * --------------- ---------------
+ * | JobDesc #1 |-------------------->| ShareDesc |
+ * | *(packet 1) | | (PDB) |
+ * --------------- |------------->| (hashKey) |
+ * . | | (cipherKey) |
+ * . | |-------->| (operation) |
+ * --------------- | | ---------------
+ * | JobDesc #2 |------| |
+ * | *(packet 2) | |
+ * --------------- |
+ * . |
+ * . |
+ * --------------- |
+ * | JobDesc #3 |------------
+ * | *(packet 3) |
+ * ---------------
+ *
+ * The SharedDesc never changes for a connection unless rekeyed, but
+ * each packet will likely be in a different place. So all we need
+ * to know to process the packet is where the input is, where the
+ * output goes, and what context we want to process with. Context is
+ * in the SharedDesc, packet references in the JobDesc.
+ *
+ * So, a job desc looks like:
+ *
+ * ---------------------
+ * | Header |
+ * | ShareDesc Pointer |
+ * | SEQ_OUT_PTR |
+ * | (output buffer) |
+ * | SEQ_IN_PTR |
+ * | (input buffer) |
+ * | LOAD (to DECO) |
+ * ---------------------
+ */
+
+#include "compat.h"
+
+#include "regs.h"
+#include "intern.h"
+#include "desc_constr.h"
+#include "jr.h"
+#include "error.h"
+
+/*
+ * crypto alg
+ */
+#define CAAM_CRA_PRIORITY 3000
+/* max key is sum of AES_MAX_KEY_SIZE, max split key size */
+#define CAAM_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + \
+ SHA512_DIGEST_SIZE * 2)
+/* max IV is max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
+#define CAAM_MAX_IV_LENGTH 16
+
+/* length of descriptors text */
+#define DESC_JOB_IO_LEN (CAAM_CMD_SZ * 3 + CAAM_PTR_SZ * 3)
+
+#define DESC_AEAD_BASE (4 * CAAM_CMD_SZ)
+#define DESC_AEAD_ENC_LEN (DESC_AEAD_BASE + 16 * CAAM_CMD_SZ)
+#define DESC_AEAD_DEC_LEN (DESC_AEAD_BASE + 21 * CAAM_CMD_SZ)
+#define DESC_AEAD_GIVENC_LEN (DESC_AEAD_ENC_LEN + 7 * CAAM_CMD_SZ)
+
+#define DESC_ABLKCIPHER_BASE (3 * CAAM_CMD_SZ)
+#define DESC_ABLKCIPHER_ENC_LEN (DESC_ABLKCIPHER_BASE + \
+ 20 * CAAM_CMD_SZ)
+#define DESC_ABLKCIPHER_DEC_LEN (DESC_ABLKCIPHER_BASE + \
+ 15 * CAAM_CMD_SZ)
+
+#define DESC_MAX_USED_BYTES (DESC_AEAD_GIVENC_LEN + \
+ CAAM_MAX_KEY_SIZE)
+#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ)
+
+#ifdef DEBUG
+/* for print_hex_dumps with line references */
+#define xstr(s) str(s)
+#define str(s) #s
+#define debug(format, arg...) printk(format, arg)
+#else
+#define debug(format, arg...)
+#endif
+
+/* Set DK bit in class 1 operation if shared */
+static inline void append_dec_op1(u32 *desc, u32 type)
+{
+ u32 *jump_cmd, *uncond_jump_cmd;
+
+ jump_cmd = append_jump(desc, JUMP_TEST_ALL | JUMP_COND_SHRD);
+ append_operation(desc, type | OP_ALG_AS_INITFINAL |
+ OP_ALG_DECRYPT);
+ uncond_jump_cmd = append_jump(desc, JUMP_TEST_ALL);
+ set_jump_tgt_here(desc, jump_cmd);
+ append_operation(desc, type | OP_ALG_AS_INITFINAL |
+ OP_ALG_DECRYPT | OP_ALG_AAI_DK);
+ set_jump_tgt_here(desc, uncond_jump_cmd);
+}
+
+/*
+ * Wait for completion of class 1 key loading before allowing
+ * error propagation
+ */
+static inline void append_dec_shr_done(u32 *desc)
+{
+ u32 *jump_cmd;
+
+ jump_cmd = append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TEST_ALL);
+ set_jump_tgt_here(desc, jump_cmd);
+ append_cmd(desc, SET_OK_NO_PROP_ERRORS | CMD_LOAD);
+}
+
+/*
+ * For aead functions, read payload and write payload,
+ * both of which are specified in req->src and req->dst
+ */
+static inline void aead_append_src_dst(u32 *desc, u32 msg_type)
+{
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH |
+ KEY_VLF | msg_type | FIFOLD_TYPE_LASTBOTH);
+ append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
+}
+
+/*
+ * For aead encrypt and decrypt, read iv for both classes
+ */
+static inline void aead_append_ld_iv(u32 *desc, int ivsize)
+{
+ append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
+ LDST_CLASS_1_CCB | ivsize);
+ append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO | ivsize);
+}
+
+/*
+ * For ablkcipher encrypt and decrypt, read from req->src and
+ * write to req->dst
+ */
+static inline void ablkcipher_append_src_dst(u32 *desc)
+{
+ append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ); \
+ append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ); \
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | \
+ KEY_VLF | FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1); \
+ append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF); \
+}
+
+/*
+ * If all data, including src (with assoc and iv) or dst (with iv only) are
+ * contiguous
+ */
+#define GIV_SRC_CONTIG 1
+#define GIV_DST_CONTIG (1 << 1)
+
+/*
+ * per-session context
+ */
+struct caam_ctx {
+ struct device *jrdev;
+ u32 sh_desc_enc[DESC_MAX_USED_LEN];
+ u32 sh_desc_dec[DESC_MAX_USED_LEN];
+ u32 sh_desc_givenc[DESC_MAX_USED_LEN];
+ dma_addr_t sh_desc_enc_dma;
+ dma_addr_t sh_desc_dec_dma;
+ dma_addr_t sh_desc_givenc_dma;
+ u32 class1_alg_type;
+ u32 class2_alg_type;
+ u32 alg_op;
+ u8 key[CAAM_MAX_KEY_SIZE];
+ dma_addr_t key_dma;
+ unsigned int enckeylen;
+ unsigned int split_key_len;
+ unsigned int split_key_pad_len;
+ unsigned int authsize;
+};
+
+static void append_key_aead(u32 *desc, struct caam_ctx *ctx,
+ int keys_fit_inline)
+{
+ if (keys_fit_inline) {
+ append_key_as_imm(desc, ctx->key, ctx->split_key_pad_len,
+ ctx->split_key_len, CLASS_2 |
+ KEY_DEST_MDHA_SPLIT | KEY_ENC);
+ append_key_as_imm(desc, (void *)ctx->key +
+ ctx->split_key_pad_len, ctx->enckeylen,
+ ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ } else {
+ append_key(desc, ctx->key_dma, ctx->split_key_len, CLASS_2 |
+ KEY_DEST_MDHA_SPLIT | KEY_ENC);
+ append_key(desc, ctx->key_dma + ctx->split_key_pad_len,
+ ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ }
+}
+
+static void init_sh_desc_key_aead(u32 *desc, struct caam_ctx *ctx,
+ int keys_fit_inline)
+{
+ u32 *key_jump_cmd;
+
+ init_sh_desc(desc, HDR_SHARE_WAIT);
+
+ /* Skip if already shared */
+ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+ JUMP_COND_SHRD);
+
+ append_key_aead(desc, ctx, keys_fit_inline);
+
+ set_jump_tgt_here(desc, key_jump_cmd);
+
+ /* Propagate errors from shared to job descriptor */
+ append_cmd(desc, SET_OK_NO_PROP_ERRORS | CMD_LOAD);
+}
+
+static int aead_set_sh_desc(struct crypto_aead *aead)
+{
+ struct aead_tfm *tfm = &aead->base.crt_aead;
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ bool keys_fit_inline = 0;
+ u32 *key_jump_cmd, *jump_cmd;
+ u32 geniv, moveiv;
+ u32 *desc;
+
+ if (!ctx->enckeylen || !ctx->authsize)
+ return 0;
+
+ /*
+ * Job Descriptor and Shared Descriptors
+ * must all fit into the 64-word Descriptor h/w Buffer
+ */
+ if (DESC_AEAD_ENC_LEN + DESC_JOB_IO_LEN +
+ ctx->split_key_pad_len + ctx->enckeylen <=
+ CAAM_DESC_BYTES_MAX)
+ keys_fit_inline = 1;
+
+ /* aead_encrypt shared descriptor */
+ desc = ctx->sh_desc_enc;
+
+ init_sh_desc_key_aead(desc, ctx, keys_fit_inline);
+
+ /* Class 2 operation */
+ append_operation(desc, ctx->class2_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
+
+ /* cryptlen = seqoutlen - authsize */
+ append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
+
+ /* assoclen + cryptlen = seqinlen - ivsize */
+ append_math_sub_imm_u32(desc, REG2, SEQINLEN, IMM, tfm->ivsize);
+
+ /* assoclen + cryptlen = (assoclen + cryptlen) - cryptlen */
+ append_math_sub(desc, VARSEQINLEN, REG2, REG3, CAAM_CMD_SZ);
+
+ /* read assoc before reading payload */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
+ KEY_VLF);
+ aead_append_ld_iv(desc, tfm->ivsize);
+
+ /* Class 1 operation */
+ append_operation(desc, ctx->class1_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
+
+ /* Read and write cryptlen bytes */
+ append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+ append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+ aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+
+ /* Write ICV */
+ append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
+ LDST_SRCDST_BYTE_CONTEXT);
+
+ ctx->sh_desc_enc_dma = dma_map_single(jrdev, desc,
+ desc_bytes(desc),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
+ dev_err(jrdev, "unable to map shared descriptor\n");
+ return -ENOMEM;
+ }
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "aead enc shdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc,
+ desc_bytes(desc), 1);
+#endif
+
+ /*
+ * Job Descriptor and Shared Descriptors
+ * must all fit into the 64-word Descriptor h/w Buffer
+ */
+ if (DESC_AEAD_DEC_LEN + DESC_JOB_IO_LEN +
+ ctx->split_key_pad_len + ctx->enckeylen <=
+ CAAM_DESC_BYTES_MAX)
+ keys_fit_inline = 1;
+
+ desc = ctx->sh_desc_dec;
+
+ /* aead_decrypt shared descriptor */
+ init_sh_desc(desc, HDR_SHARE_WAIT);
+
+ /* Skip if already shared */
+ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+ JUMP_COND_SHRD);
+
+ append_key_aead(desc, ctx, keys_fit_inline);
+
+ /* Only propagate error immediately if shared */
+ jump_cmd = append_jump(desc, JUMP_TEST_ALL);
+ set_jump_tgt_here(desc, key_jump_cmd);
+ append_cmd(desc, SET_OK_NO_PROP_ERRORS | CMD_LOAD);
+ set_jump_tgt_here(desc, jump_cmd);
+
+ /* Class 2 operation */
+ append_operation(desc, ctx->class2_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+
+ /* assoclen + cryptlen = seqinlen - ivsize */
+ append_math_sub_imm_u32(desc, REG3, SEQINLEN, IMM,
+ ctx->authsize + tfm->ivsize)
+ /* assoclen = (assoclen + cryptlen) - cryptlen */
+ append_math_sub(desc, REG2, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+ append_math_sub(desc, VARSEQINLEN, REG3, REG2, CAAM_CMD_SZ);
+
+ /* read assoc before reading payload */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
+ KEY_VLF);
+
+ aead_append_ld_iv(desc, tfm->ivsize);
+
+ append_dec_op1(desc, ctx->class1_alg_type);
+
+ /* Read and write cryptlen bytes */
+ append_math_add(desc, VARSEQINLEN, ZERO, REG2, CAAM_CMD_SZ);
+ append_math_add(desc, VARSEQOUTLEN, ZERO, REG2, CAAM_CMD_SZ);
+ aead_append_src_dst(desc, FIFOLD_TYPE_MSG);
+
+ /* Load ICV */
+ append_seq_fifo_load(desc, ctx->authsize, FIFOLD_CLASS_CLASS2 |
+ FIFOLD_TYPE_LAST2 | FIFOLD_TYPE_ICV);
+ append_dec_shr_done(desc);
+
+ ctx->sh_desc_dec_dma = dma_map_single(jrdev, desc,
+ desc_bytes(desc),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->sh_desc_dec_dma)) {
+ dev_err(jrdev, "unable to map shared descriptor\n");
+ return -ENOMEM;
+ }
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "aead dec shdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc,
+ desc_bytes(desc), 1);
+#endif
+
+ /*
+ * Job Descriptor and Shared Descriptors
+ * must all fit into the 64-word Descriptor h/w Buffer
+ */
+ if (DESC_AEAD_GIVENC_LEN + DESC_JOB_IO_LEN +
+ ctx->split_key_pad_len + ctx->enckeylen <=
+ CAAM_DESC_BYTES_MAX)
+ keys_fit_inline = 1;
+
+ /* aead_givencrypt shared descriptor */
+ desc = ctx->sh_desc_givenc;
+
+ init_sh_desc_key_aead(desc, ctx, keys_fit_inline);
+
+ /* Generate IV */
+ geniv = NFIFOENTRY_STYPE_PAD | NFIFOENTRY_DEST_DECO |
+ NFIFOENTRY_DTYPE_MSG | NFIFOENTRY_LC1 |
+ NFIFOENTRY_PTYPE_RND | (tfm->ivsize << NFIFOENTRY_DLEN_SHIFT);
+ append_load_imm_u32(desc, geniv, LDST_CLASS_IND_CCB |
+ LDST_SRCDST_WORD_INFO_FIFO | LDST_IMM);
+ append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
+ append_move(desc, MOVE_SRC_INFIFO |
+ MOVE_DEST_CLASS1CTX | (tfm->ivsize << MOVE_LEN_SHIFT));
+ append_cmd(desc, CMD_LOAD | ENABLE_AUTO_INFO_FIFO);
+
+ /* Copy IV to class 1 context */
+ append_move(desc, MOVE_SRC_CLASS1CTX |
+ MOVE_DEST_OUTFIFO | (tfm->ivsize << MOVE_LEN_SHIFT));
+
+ /* Return to encryption */
+ append_operation(desc, ctx->class2_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
+
+ /* ivsize + cryptlen = seqoutlen - authsize */
+ append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
+
+ /* assoclen = seqinlen - (ivsize + cryptlen) */
+ append_math_sub(desc, VARSEQINLEN, SEQINLEN, REG3, CAAM_CMD_SZ);
+
+ /* read assoc before reading payload */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
+ KEY_VLF);
+
+ /* Copy iv from class 1 ctx to class 2 fifo*/
+ moveiv = NFIFOENTRY_STYPE_OFIFO | NFIFOENTRY_DEST_CLASS2 |
+ NFIFOENTRY_DTYPE_MSG | (tfm->ivsize << NFIFOENTRY_DLEN_SHIFT);
+ append_load_imm_u32(desc, moveiv, LDST_CLASS_IND_CCB |
+ LDST_SRCDST_WORD_INFO_FIFO | LDST_IMM);
+ append_load_imm_u32(desc, tfm->ivsize, LDST_CLASS_2_CCB |
+ LDST_SRCDST_WORD_DATASZ_REG | LDST_IMM);
+
+ /* Class 1 operation */
+ append_operation(desc, ctx->class1_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
+
+ /* Will write ivsize + cryptlen */
+ append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+
+ /* Not need to reload iv */
+ append_seq_fifo_load(desc, tfm->ivsize,
+ FIFOLD_CLASS_SKIP);
+
+ /* Will read cryptlen */
+ append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
+ aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+
+ /* Write ICV */
+ append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
+ LDST_SRCDST_BYTE_CONTEXT);
+
+ ctx->sh_desc_givenc_dma = dma_map_single(jrdev, desc,
+ desc_bytes(desc),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->sh_desc_givenc_dma)) {
+ dev_err(jrdev, "unable to map shared descriptor\n");
+ return -ENOMEM;
+ }
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "aead givenc shdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc,
+ desc_bytes(desc), 1);
+#endif
+
+ return 0;
+}
+
+static int aead_setauthsize(struct crypto_aead *authenc,
+ unsigned int authsize)
+{
+ struct caam_ctx *ctx = crypto_aead_ctx(authenc);
+
+ ctx->authsize = authsize;
+ aead_set_sh_desc(authenc);
+
+ return 0;
+}
+
+struct split_key_result {
+ struct completion completion;
+ int err;
+};
+
+static void split_key_done(struct device *dev, u32 *desc, u32 err,
+ void *context)
+{
+ struct split_key_result *res = context;
+
+#ifdef DEBUG
+ dev_err(dev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
+#endif
+
+ if (err) {
+ char tmp[CAAM_ERROR_STR_MAX];
+
+ dev_err(dev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
+ }
+
+ res->err = err;
+
+ complete(&res->completion);
+}
+
+/*
+get a split ipad/opad key
+
+Split key generation-----------------------------------------------
+
+[00] 0xb0810008 jobdesc: stidx=1 share=never len=8
+[01] 0x04000014 key: class2->keyreg len=20
+ @0xffe01000
+[03] 0x84410014 operation: cls2-op sha1 hmac init dec
+[04] 0x24940000 fifold: class2 msgdata-last2 len=0 imm
+[05] 0xa4000001 jump: class2 local all ->1 [06]
+[06] 0x64260028 fifostr: class2 mdsplit-jdk len=40
+ @0xffe04000
+*/
+static u32 gen_split_key(struct caam_ctx *ctx, const u8 *key_in, u32 authkeylen)
+{
+ struct device *jrdev = ctx->jrdev;
+ u32 *desc;
+ struct split_key_result result;
+ dma_addr_t dma_addr_in, dma_addr_out;
+ int ret = 0;
+
+ desc = kmalloc(CAAM_CMD_SZ * 6 + CAAM_PTR_SZ * 2, GFP_KERNEL | GFP_DMA);
+
+ init_job_desc(desc, 0);
+
+ dma_addr_in = dma_map_single(jrdev, (void *)key_in, authkeylen,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, dma_addr_in)) {
+ dev_err(jrdev, "unable to map key input memory\n");
+ kfree(desc);
+ return -ENOMEM;
+ }
+ append_key(desc, dma_addr_in, authkeylen, CLASS_2 |
+ KEY_DEST_CLASS_REG);
+
+ /* Sets MDHA up into an HMAC-INIT */
+ append_operation(desc, ctx->alg_op | OP_ALG_DECRYPT |
+ OP_ALG_AS_INIT);
+
+ /*
+ * do a FIFO_LOAD of zero, this will trigger the internal key expansion
+ into both pads inside MDHA
+ */
+ append_fifo_load_as_imm(desc, NULL, 0, LDST_CLASS_2_CCB |
+ FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST2);
+
+ /*
+ * FIFO_STORE with the explicit split-key content store
+ * (0x26 output type)
+ */
+ dma_addr_out = dma_map_single(jrdev, ctx->key, ctx->split_key_pad_len,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(jrdev, dma_addr_out)) {
+ dev_err(jrdev, "unable to map key output memory\n");
+ kfree(desc);
+ return -ENOMEM;
+ }
+ append_fifo_store(desc, dma_addr_out, ctx->split_key_len,
+ LDST_CLASS_2_CCB | FIFOST_TYPE_SPLIT_KEK);
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ctx.key@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, key_in, authkeylen, 1);
+ print_hex_dump(KERN_ERR, "jobdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), 1);
+#endif
+
+ result.err = 0;
+ init_completion(&result.completion);
+
+ ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
+ if (!ret) {
+ /* in progress */
+ wait_for_completion_interruptible(&result.completion);
+ ret = result.err;
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ctx.key@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, ctx->key,
+ ctx->split_key_pad_len, 1);
+#endif
+ }
+
+ dma_unmap_single(jrdev, dma_addr_out, ctx->split_key_pad_len,
+ DMA_FROM_DEVICE);
+ dma_unmap_single(jrdev, dma_addr_in, authkeylen, DMA_TO_DEVICE);
+
+ kfree(desc);
+
+ return ret;
+}
+
+static int aead_setkey(struct crypto_aead *aead,
+ const u8 *key, unsigned int keylen)
+{
+ /* Sizes for MDHA pads (*not* keys): MD5, SHA1, 224, 256, 384, 512 */
+ static const u8 mdpadlen[] = { 16, 20, 32, 32, 64, 64 };
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ struct rtattr *rta = (void *)key;
+ struct crypto_authenc_key_param *param;
+ unsigned int authkeylen;
+ unsigned int enckeylen;
+ int ret = 0;
+
+ param = RTA_DATA(rta);
+ enckeylen = be32_to_cpu(param->enckeylen);
+
+ key += RTA_ALIGN(rta->rta_len);
+ keylen -= RTA_ALIGN(rta->rta_len);
+
+ if (keylen < enckeylen)
+ goto badkey;
+
+ authkeylen = keylen - enckeylen;
+
+ if (keylen > CAAM_MAX_KEY_SIZE)
+ goto badkey;
+
+ /* Pick class 2 key length from algorithm submask */
+ ctx->split_key_len = mdpadlen[(ctx->alg_op & OP_ALG_ALGSEL_SUBMASK) >>
+ OP_ALG_ALGSEL_SHIFT] * 2;
+ ctx->split_key_pad_len = ALIGN(ctx->split_key_len, 16);
+
+#ifdef DEBUG
+ printk(KERN_ERR "keylen %d enckeylen %d authkeylen %d\n",
+ keylen, enckeylen, authkeylen);
+ printk(KERN_ERR "split_key_len %d split_key_pad_len %d\n",
+ ctx->split_key_len, ctx->split_key_pad_len);
+ print_hex_dump(KERN_ERR, "key in @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
+#endif
+
+ ret = gen_split_key(ctx, key, authkeylen);
+ if (ret) {
+ goto badkey;
+ }
+
+ /* postpend encryption key to auth split key */
+ memcpy(ctx->key + ctx->split_key_pad_len, key + authkeylen, enckeylen);
+
+ ctx->key_dma = dma_map_single(jrdev, ctx->key, ctx->split_key_pad_len +
+ enckeylen, DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->key_dma)) {
+ dev_err(jrdev, "unable to map key i/o memory\n");
+ return -ENOMEM;
+ }
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ctx.key@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, ctx->key,
+ ctx->split_key_pad_len + enckeylen, 1);
+#endif
+
+ ctx->enckeylen = enckeylen;
+
+ ret = aead_set_sh_desc(aead);
+ if (ret) {
+ dma_unmap_single(jrdev, ctx->key_dma, ctx->split_key_pad_len +
+ enckeylen, DMA_TO_DEVICE);
+ }
+
+ return ret;
+badkey:
+ crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+}
+
+static int ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
+ const u8 *key, unsigned int keylen)
+{
+ struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
+ struct ablkcipher_tfm *tfm = &ablkcipher->base.crt_ablkcipher;
+ struct device *jrdev = ctx->jrdev;
+ int ret = 0;
+ u32 *key_jump_cmd, *jump_cmd;
+ u32 *desc;
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "key in @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
+#endif
+
+ memcpy(ctx->key, key, keylen);
+ ctx->key_dma = dma_map_single(jrdev, ctx->key, keylen,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->key_dma)) {
+ dev_err(jrdev, "unable to map key i/o memory\n");
+ return -ENOMEM;
+ }
+ ctx->enckeylen = keylen;
+
+ /* ablkcipher_encrypt shared descriptor */
+ desc = ctx->sh_desc_enc;
+ init_sh_desc(desc, HDR_SHARE_WAIT);
+ /* Skip if already shared */
+ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+ JUMP_COND_SHRD);
+
+ /* Load class1 key only */
+ append_key_as_imm(desc, (void *)ctx->key, ctx->enckeylen,
+ ctx->enckeylen, CLASS_1 |
+ KEY_DEST_CLASS_REG);
+
+ set_jump_tgt_here(desc, key_jump_cmd);
+
+ /* Propagate errors from shared to job descriptor */
+ append_cmd(desc, SET_OK_NO_PROP_ERRORS | CMD_LOAD);
+
+ /* Load iv */
+ append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
+ LDST_CLASS_1_CCB | tfm->ivsize);
+
+ /* Load operation */
+ append_operation(desc, ctx->class1_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
+
+ /* Perform operation */
+ ablkcipher_append_src_dst(desc);
+
+ ctx->sh_desc_enc_dma = dma_map_single(jrdev, desc,
+ desc_bytes(desc),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
+ dev_err(jrdev, "unable to map shared descriptor\n");
+ return -ENOMEM;
+ }
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ablkcipher enc shdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc,
+ desc_bytes(desc), 1);
+#endif
+ /* ablkcipher_decrypt shared descriptor */
+ desc = ctx->sh_desc_dec;
+
+ init_sh_desc(desc, HDR_SHARE_WAIT);
+ /* Skip if already shared */
+ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+ JUMP_COND_SHRD);
+
+ /* Load class1 key only */
+ append_key_as_imm(desc, (void *)ctx->key, ctx->enckeylen,
+ ctx->enckeylen, CLASS_1 |
+ KEY_DEST_CLASS_REG);
+
+ /* For aead, only propagate error immediately if shared */
+ jump_cmd = append_jump(desc, JUMP_TEST_ALL);
+ set_jump_tgt_here(desc, key_jump_cmd);
+ append_cmd(desc, SET_OK_NO_PROP_ERRORS | CMD_LOAD);
+ set_jump_tgt_here(desc, jump_cmd);
+
+ /* load IV */
+ append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
+ LDST_CLASS_1_CCB | tfm->ivsize);
+
+ /* Choose operation */
+ append_dec_op1(desc, ctx->class1_alg_type);
+
+ /* Perform operation */
+ ablkcipher_append_src_dst(desc);
+
+ /* Wait for key to load before allowing propagating error */
+ append_dec_shr_done(desc);
+
+ ctx->sh_desc_dec_dma = dma_map_single(jrdev, desc,
+ desc_bytes(desc),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
+ dev_err(jrdev, "unable to map shared descriptor\n");
+ return -ENOMEM;
+ }
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ablkcipher dec shdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc,
+ desc_bytes(desc), 1);
+#endif
+
+ return ret;
+}
+
+struct link_tbl_entry {
+ u64 ptr;
+ u32 len;
+ u8 reserved;
+ u8 buf_pool_id;
+ u16 offset;
+};
+
+/*
+ * aead_edesc - s/w-extended aead descriptor
+ * @assoc_nents: number of segments in associated data (SPI+Seq) scatterlist
+ * @src_nents: number of segments in input scatterlist
+ * @dst_nents: number of segments in output scatterlist
+ * @iv_dma: dma address of iv for checking continuity and link table
+ * @desc: h/w descriptor (variable length; must not exceed MAX_CAAM_DESCSIZE)
+ * @link_tbl_bytes: length of dma mapped link_tbl space
+ * @link_tbl_dma: bus physical mapped address of h/w link table
+ * @hw_desc: the h/w job descriptor followed by any referenced link tables
+ */
+struct aead_edesc {
+ int assoc_nents;
+ int src_nents;
+ int dst_nents;
+ dma_addr_t iv_dma;
+ int link_tbl_bytes;
+ dma_addr_t link_tbl_dma;
+ struct link_tbl_entry *link_tbl;
+ u32 hw_desc[0];
+};
+
+/*
+ * ablkcipher_edesc - s/w-extended ablkcipher descriptor
+ * @src_nents: number of segments in input scatterlist
+ * @dst_nents: number of segments in output scatterlist
+ * @iv_dma: dma address of iv for checking continuity and link table
+ * @desc: h/w descriptor (variable length; must not exceed MAX_CAAM_DESCSIZE)
+ * @link_tbl_bytes: length of dma mapped link_tbl space
+ * @link_tbl_dma: bus physical mapped address of h/w link table
+ * @hw_desc: the h/w job descriptor followed by any referenced link tables
+ */
+struct ablkcipher_edesc {
+ int src_nents;
+ int dst_nents;
+ dma_addr_t iv_dma;
+ int link_tbl_bytes;
+ dma_addr_t link_tbl_dma;
+ struct link_tbl_entry *link_tbl;
+ u32 hw_desc[0];
+};
+
+static void caam_unmap(struct device *dev, struct scatterlist *src,
+ struct scatterlist *dst, int src_nents, int dst_nents,
+ dma_addr_t iv_dma, int ivsize, dma_addr_t link_tbl_dma,
+ int link_tbl_bytes)
+{
+ if (unlikely(dst != src)) {
+ dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE);
+ dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE);
+ } else {
+ dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL);
+ }
+
+ if (iv_dma)
+ dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE);
+ if (link_tbl_bytes)
+ dma_unmap_single(dev, link_tbl_dma, link_tbl_bytes,
+ DMA_TO_DEVICE);
+}
+
+static void aead_unmap(struct device *dev,
+ struct aead_edesc *edesc,
+ struct aead_request *req)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ int ivsize = crypto_aead_ivsize(aead);
+
+ dma_unmap_sg(dev, req->assoc, edesc->assoc_nents, DMA_TO_DEVICE);
+
+ caam_unmap(dev, req->src, req->dst,
+ edesc->src_nents, edesc->dst_nents,
+ edesc->iv_dma, ivsize, edesc->link_tbl_dma,
+ edesc->link_tbl_bytes);
+}
+
+static void ablkcipher_unmap(struct device *dev,
+ struct ablkcipher_edesc *edesc,
+ struct ablkcipher_request *req)
+{
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+
+ caam_unmap(dev, req->src, req->dst,
+ edesc->src_nents, edesc->dst_nents,
+ edesc->iv_dma, ivsize, edesc->link_tbl_dma,
+ edesc->link_tbl_bytes);
+}
+
+static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
+ void *context)
+{
+ struct aead_request *req = context;
+ struct aead_edesc *edesc;
+#ifdef DEBUG
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ int ivsize = crypto_aead_ivsize(aead);
+
+ dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
+#endif
+
+ edesc = (struct aead_edesc *)((char *)desc -
+ offsetof(struct aead_edesc, hw_desc));
+
+ if (err) {
+ char tmp[CAAM_ERROR_STR_MAX];
+
+ dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
+ }
+
+ aead_unmap(jrdev, edesc, req);
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "assoc @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->assoc),
+ req->assoclen , 1);
+ print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src) - ivsize,
+ edesc->src_nents ? 100 : ivsize, 1);
+ print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ edesc->src_nents ? 100 : req->cryptlen +
+ ctx->authsize + 4, 1);
+#endif
+
+ kfree(edesc);
+
+ aead_request_complete(req, err);
+}
+
+static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
+ void *context)
+{
+ struct aead_request *req = context;
+ struct aead_edesc *edesc;
+#ifdef DEBUG
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ int ivsize = crypto_aead_ivsize(aead);
+
+ dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
+#endif
+
+ edesc = (struct aead_edesc *)((char *)desc -
+ offsetof(struct aead_edesc, hw_desc));
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
+ ivsize, 1);
+ print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->dst),
+ req->cryptlen, 1);
+#endif
+
+ if (err) {
+ char tmp[CAAM_ERROR_STR_MAX];
+
+ dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
+ }
+
+ aead_unmap(jrdev, edesc, req);
+
+ /*
+ * verify hw auth check passed else return -EBADMSG
+ */
+ if ((err & JRSTA_CCBERR_ERRID_MASK) == JRSTA_CCBERR_ERRID_ICVCHK)
+ err = -EBADMSG;
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "iphdrout@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4,
+ ((char *)sg_virt(req->assoc) - sizeof(struct iphdr)),
+ sizeof(struct iphdr) + req->assoclen +
+ ((req->cryptlen > 1500) ? 1500 : req->cryptlen) +
+ ctx->authsize + 36, 1);
+ if (!err && edesc->link_tbl_bytes) {
+ struct scatterlist *sg = sg_last(req->src, edesc->src_nents);
+ print_hex_dump(KERN_ERR, "sglastout@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(sg),
+ sg->length + ctx->authsize + 16, 1);
+ }
+#endif
+
+ kfree(edesc);
+
+ aead_request_complete(req, err);
+}
+
+static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
+ void *context)
+{
+ struct ablkcipher_request *req = context;
+ struct ablkcipher_edesc *edesc;
+#ifdef DEBUG
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+
+ dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
+#endif
+
+ edesc = (struct ablkcipher_edesc *)((char *)desc -
+ offsetof(struct ablkcipher_edesc, hw_desc));
+
+ if (err) {
+ char tmp[CAAM_ERROR_STR_MAX];
+
+ dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
+ }
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, req->info,
+ edesc->src_nents > 1 ? 100 : ivsize, 1);
+ print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ edesc->dst_nents > 1 ? 100 : req->nbytes, 1);
+#endif
+
+ ablkcipher_unmap(jrdev, edesc, req);
+ kfree(edesc);
+
+ ablkcipher_request_complete(req, err);
+}
+
+static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
+ void *context)
+{
+ struct ablkcipher_request *req = context;
+ struct ablkcipher_edesc *edesc;
+#ifdef DEBUG
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+
+ dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
+#endif
+
+ edesc = (struct ablkcipher_edesc *)((char *)desc -
+ offsetof(struct ablkcipher_edesc, hw_desc));
+ if (err) {
+ char tmp[CAAM_ERROR_STR_MAX];
+
+ dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
+ }
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, req->info,
+ ivsize, 1);
+ print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ edesc->dst_nents > 1 ? 100 : req->nbytes, 1);
+#endif
+
+ ablkcipher_unmap(jrdev, edesc, req);
+ kfree(edesc);
+
+ ablkcipher_request_complete(req, err);
+}
+
+static void sg_to_link_tbl_one(struct link_tbl_entry *link_tbl_ptr,
+ dma_addr_t dma, u32 len, u32 offset)
+{
+ link_tbl_ptr->ptr = dma;
+ link_tbl_ptr->len = len;
+ link_tbl_ptr->reserved = 0;
+ link_tbl_ptr->buf_pool_id = 0;
+ link_tbl_ptr->offset = offset;
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "link_tbl_ptr@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, link_tbl_ptr,
+ sizeof(struct link_tbl_entry), 1);
+#endif
+}
+
+/*
+ * convert scatterlist to h/w link table format
+ * but does not have final bit; instead, returns last entry
+ */
+static struct link_tbl_entry *sg_to_link_tbl(struct scatterlist *sg,
+ int sg_count, struct link_tbl_entry
+ *link_tbl_ptr, u32 offset)
+{
+ while (sg_count) {
+ sg_to_link_tbl_one(link_tbl_ptr, sg_dma_address(sg),
+ sg_dma_len(sg), offset);
+ link_tbl_ptr++;
+ sg = sg_next(sg);
+ sg_count--;
+ }
+ return link_tbl_ptr - 1;
+}
+
+/*
+ * convert scatterlist to h/w link table format
+ * scatterlist must have been previously dma mapped
+ */
+static void sg_to_link_tbl_last(struct scatterlist *sg, int sg_count,
+ struct link_tbl_entry *link_tbl_ptr, u32 offset)
+{
+ link_tbl_ptr = sg_to_link_tbl(sg, sg_count, link_tbl_ptr, offset);
+ link_tbl_ptr->len |= 0x40000000;
+}
+
+/*
+ * Fill in aead job descriptor
+ */
+static void init_aead_job(u32 *sh_desc, dma_addr_t ptr,
+ struct aead_edesc *edesc,
+ struct aead_request *req,
+ bool all_contig, bool encrypt)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ int ivsize = crypto_aead_ivsize(aead);
+ int authsize = ctx->authsize;
+ u32 *desc = edesc->hw_desc;
+ u32 out_options = 0, in_options;
+ dma_addr_t dst_dma, src_dma;
+ int len, link_tbl_index = 0;
+
+#ifdef DEBUG
+ debug("assoclen %d cryptlen %d authsize %d\n",
+ req->assoclen, req->cryptlen, authsize);
+ print_hex_dump(KERN_ERR, "assoc @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->assoc),
+ req->assoclen , 1);
+ print_hex_dump(KERN_ERR, "presciv@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
+ edesc->src_nents ? 100 : ivsize, 1);
+ print_hex_dump(KERN_ERR, "src @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ edesc->src_nents ? 100 : req->cryptlen, 1);
+ print_hex_dump(KERN_ERR, "shrdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sh_desc,
+ desc_bytes(sh_desc), 1);
+#endif
+
+ len = desc_len(sh_desc);
+ init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
+
+ if (all_contig) {
+ src_dma = sg_dma_address(req->assoc);
+ in_options = 0;
+ } else {
+ src_dma = edesc->link_tbl_dma;
+ link_tbl_index += (edesc->assoc_nents ? : 1) + 1 +
+ (edesc->src_nents ? : 1);
+ in_options = LDST_SGF;
+ }
+ if (encrypt)
+ append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
+ req->cryptlen - authsize, in_options);
+ else
+ append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
+ req->cryptlen, in_options);
+
+ if (likely(req->src == req->dst)) {
+ if (all_contig) {
+ dst_dma = sg_dma_address(req->src);
+ } else {
+ dst_dma = src_dma + sizeof(struct link_tbl_entry) *
+ ((edesc->assoc_nents ? : 1) + 1);
+ out_options = LDST_SGF;
+ }
+ } else {
+ if (!edesc->dst_nents) {
+ dst_dma = sg_dma_address(req->dst);
+ } else {
+ dst_dma = edesc->link_tbl_dma +
+ link_tbl_index *
+ sizeof(struct link_tbl_entry);
+ out_options = LDST_SGF;
+ }
+ }
+ if (encrypt)
+ append_seq_out_ptr(desc, dst_dma, req->cryptlen, out_options);
+ else
+ append_seq_out_ptr(desc, dst_dma, req->cryptlen - authsize,
+ out_options);
+}
+
+/*
+ * Fill in aead givencrypt job descriptor
+ */
+static void init_aead_giv_job(u32 *sh_desc, dma_addr_t ptr,
+ struct aead_edesc *edesc,
+ struct aead_request *req,
+ int contig)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ int ivsize = crypto_aead_ivsize(aead);
+ int authsize = ctx->authsize;
+ u32 *desc = edesc->hw_desc;
+ u32 out_options = 0, in_options;
+ dma_addr_t dst_dma, src_dma;
+ int len, link_tbl_index = 0;
+
+#ifdef DEBUG
+ debug("assoclen %d cryptlen %d authsize %d\n",
+ req->assoclen, req->cryptlen, authsize);
+ print_hex_dump(KERN_ERR, "assoc @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->assoc),
+ req->assoclen , 1);
+ print_hex_dump(KERN_ERR, "presciv@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, req->iv, ivsize, 1);
+ print_hex_dump(KERN_ERR, "src @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ edesc->src_nents > 1 ? 100 : req->cryptlen, 1);
+ print_hex_dump(KERN_ERR, "shrdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sh_desc,
+ desc_bytes(sh_desc), 1);
+#endif
+
+ len = desc_len(sh_desc);
+ init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
+
+ if (contig & GIV_SRC_CONTIG) {
+ src_dma = sg_dma_address(req->assoc);
+ in_options = 0;
+ } else {
+ src_dma = edesc->link_tbl_dma;
+ link_tbl_index += edesc->assoc_nents + 1 + edesc->src_nents;
+ in_options = LDST_SGF;
+ }
+ append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
+ req->cryptlen - authsize, in_options);
+
+ if (contig & GIV_DST_CONTIG) {
+ dst_dma = edesc->iv_dma;
+ } else {
+ if (likely(req->src == req->dst)) {
+ dst_dma = src_dma + sizeof(struct link_tbl_entry) *
+ edesc->assoc_nents;
+ out_options = LDST_SGF;
+ } else {
+ dst_dma = edesc->link_tbl_dma +
+ link_tbl_index *
+ sizeof(struct link_tbl_entry);
+ out_options = LDST_SGF;
+ }
+ }
+
+ append_seq_out_ptr(desc, dst_dma, ivsize + req->cryptlen, out_options);
+}
+
+/*
+ * Fill in ablkcipher job descriptor
+ */
+static void init_ablkcipher_job(u32 *sh_desc, dma_addr_t ptr,
+ struct ablkcipher_edesc *edesc,
+ struct ablkcipher_request *req,
+ bool iv_contig)
+{
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+ u32 *desc = edesc->hw_desc;
+ u32 out_options = 0, in_options;
+ dma_addr_t dst_dma, src_dma;
+ int len, link_tbl_index = 0;
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "presciv@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, req->info,
+ ivsize, 1);
+ print_hex_dump(KERN_ERR, "src @"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ edesc->src_nents ? 100 : req->nbytes, 1);
+#endif
+
+ len = desc_len(sh_desc);
+ init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
+
+ if (iv_contig) {
+ src_dma = edesc->iv_dma;
+ in_options = 0;
+ } else {
+ src_dma = edesc->link_tbl_dma;
+ link_tbl_index += (iv_contig ? 0 : 1) + edesc->src_nents;
+ in_options = LDST_SGF;
+ }
+ append_seq_in_ptr(desc, src_dma, req->nbytes + ivsize, in_options);
+
+ if (likely(req->src == req->dst)) {
+ if (!edesc->src_nents && iv_contig) {
+ dst_dma = sg_dma_address(req->src);
+ } else {
+ dst_dma = edesc->link_tbl_dma +
+ sizeof(struct link_tbl_entry);
+ out_options = LDST_SGF;
+ }
+ } else {
+ if (!edesc->dst_nents) {
+ dst_dma = sg_dma_address(req->dst);
+ } else {
+ dst_dma = edesc->link_tbl_dma +
+ link_tbl_index * sizeof(struct link_tbl_entry);
+ out_options = LDST_SGF;
+ }
+ }
+ append_seq_out_ptr(desc, dst_dma, req->nbytes, out_options);
+}
+
+/*
+ * derive number of elements in scatterlist
+ */
+static int sg_count(struct scatterlist *sg_list, int nbytes)
+{
+ struct scatterlist *sg = sg_list;
+ int sg_nents = 0;
+
+ while (nbytes > 0) {
+ sg_nents++;
+ nbytes -= sg->length;
+ if (!sg_is_last(sg) && (sg + 1)->length == 0)
+ BUG(); /* Not support chaining */
+ sg = scatterwalk_sg_next(sg);
+ }
+
+ if (likely(sg_nents == 1))
+ return 0;
+
+ return sg_nents;
+}
+
+/*
+ * allocate and map the aead extended descriptor
+ */
+static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
+ int desc_bytes, bool *all_contig_ptr)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
+ CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC;
+ int assoc_nents, src_nents, dst_nents = 0;
+ struct aead_edesc *edesc;
+ dma_addr_t iv_dma = 0;
+ int sgc;
+ bool all_contig = true;
+ int ivsize = crypto_aead_ivsize(aead);
+ int link_tbl_index, link_tbl_len = 0, link_tbl_bytes;
+
+ assoc_nents = sg_count(req->assoc, req->assoclen);
+ src_nents = sg_count(req->src, req->cryptlen);
+
+ if (unlikely(req->dst != req->src))
+ dst_nents = sg_count(req->dst, req->cryptlen);
+
+ sgc = dma_map_sg(jrdev, req->assoc, assoc_nents ? : 1,
+ DMA_BIDIRECTIONAL);
+ if (likely(req->src == req->dst)) {
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL);
+ } else {
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE);
+ sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE);
+ }
+
+ /* Check if data are contiguous */
+ iv_dma = dma_map_single(jrdev, req->iv, ivsize, DMA_TO_DEVICE);
+ if (assoc_nents || sg_dma_address(req->assoc) + req->assoclen !=
+ iv_dma || src_nents || iv_dma + ivsize !=
+ sg_dma_address(req->src)) {
+ all_contig = false;
+ assoc_nents = assoc_nents ? : 1;
+ src_nents = src_nents ? : 1;
+ link_tbl_len = assoc_nents + 1 + src_nents;
+ }
+ link_tbl_len += dst_nents;
+
+ link_tbl_bytes = link_tbl_len * sizeof(struct link_tbl_entry);
+
+ /* allocate space for base edesc and hw desc commands, link tables */
+ edesc = kmalloc(sizeof(struct aead_edesc) + desc_bytes +
+ link_tbl_bytes, GFP_DMA | flags);
+ if (!edesc) {
+ dev_err(jrdev, "could not allocate extended descriptor\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ edesc->assoc_nents = assoc_nents;
+ edesc->src_nents = src_nents;
+ edesc->dst_nents = dst_nents;
+ edesc->iv_dma = iv_dma;
+ edesc->link_tbl_bytes = link_tbl_bytes;
+ edesc->link_tbl = (void *)edesc + sizeof(struct aead_edesc) +
+ desc_bytes;
+ edesc->link_tbl_dma = dma_map_single(jrdev, edesc->link_tbl,
+ link_tbl_bytes, DMA_TO_DEVICE);
+ *all_contig_ptr = all_contig;
+
+ link_tbl_index = 0;
+ if (!all_contig) {
+ sg_to_link_tbl(req->assoc,
+ (assoc_nents ? : 1),
+ edesc->link_tbl +
+ link_tbl_index, 0);
+ link_tbl_index += assoc_nents ? : 1;
+ sg_to_link_tbl_one(edesc->link_tbl + link_tbl_index,
+ iv_dma, ivsize, 0);
+ link_tbl_index += 1;
+ sg_to_link_tbl_last(req->src,
+ (src_nents ? : 1),
+ edesc->link_tbl +
+ link_tbl_index, 0);
+ link_tbl_index += src_nents ? : 1;
+ }
+ if (dst_nents) {
+ sg_to_link_tbl_last(req->dst, dst_nents,
+ edesc->link_tbl + link_tbl_index, 0);
+ }
+
+ return edesc;
+}
+
+static int aead_encrypt(struct aead_request *req)
+{
+ struct aead_edesc *edesc;
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ bool all_contig;
+ u32 *desc;
+ int ret = 0;
+
+ req->cryptlen += ctx->authsize;
+
+ /* allocate extended descriptor */
+ edesc = aead_edesc_alloc(req, DESC_JOB_IO_LEN *
+ CAAM_CMD_SZ, &all_contig);
+ if (IS_ERR(edesc))
+ return PTR_ERR(edesc);
+
+ /* Create and submit job descriptor */
+ init_aead_job(ctx->sh_desc_enc, ctx->sh_desc_enc_dma, edesc, req,
+ all_contig, true);
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "aead jobdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
+ desc_bytes(edesc->hw_desc), 1);
+#endif
+
+ desc = edesc->hw_desc;
+ ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
+ if (!ret) {
+ ret = -EINPROGRESS;
+ } else {
+ aead_unmap(jrdev, edesc, req);
+ kfree(edesc);
+ }
+
+ return ret;
+}
+
+static int aead_decrypt(struct aead_request *req)
+{
+ struct aead_edesc *edesc;
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ bool all_contig;
+ u32 *desc;
+ int ret = 0;
+
+ /* allocate extended descriptor */
+ edesc = aead_edesc_alloc(req, DESC_JOB_IO_LEN *
+ CAAM_CMD_SZ, &all_contig);
+ if (IS_ERR(edesc))
+ return PTR_ERR(edesc);
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "dec src@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ req->cryptlen, 1);
+#endif
+
+ /* Create and submit job descriptor*/
+ init_aead_job(ctx->sh_desc_dec,
+ ctx->sh_desc_dec_dma, edesc, req, all_contig, false);
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "aead jobdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
+ desc_bytes(edesc->hw_desc), 1);
+#endif
+
+ desc = edesc->hw_desc;
+ ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
+ if (!ret) {
+ ret = -EINPROGRESS;
+ } else {
+ aead_unmap(jrdev, edesc, req);
+ kfree(edesc);
+ }
+
+ return ret;
+}
+
+/*
+ * allocate and map the aead extended descriptor for aead givencrypt
+ */
+static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
+ *greq, int desc_bytes,
+ u32 *contig_ptr)
+{
+ struct aead_request *req = &greq->areq;
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
+ CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC;
+ int assoc_nents, src_nents, dst_nents = 0;
+ struct aead_edesc *edesc;
+ dma_addr_t iv_dma = 0;
+ int sgc;
+ u32 contig = GIV_SRC_CONTIG | GIV_DST_CONTIG;
+ int ivsize = crypto_aead_ivsize(aead);
+ int link_tbl_index, link_tbl_len = 0, link_tbl_bytes;
+
+ assoc_nents = sg_count(req->assoc, req->assoclen);
+ src_nents = sg_count(req->src, req->cryptlen);
+
+ if (unlikely(req->dst != req->src))
+ dst_nents = sg_count(req->dst, req->cryptlen);
+
+ sgc = dma_map_sg(jrdev, req->assoc, assoc_nents ? : 1,
+ DMA_BIDIRECTIONAL);
+ if (likely(req->src == req->dst)) {
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL);
+ } else {
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE);
+ sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE);
+ }
+
+ /* Check if data are contiguous */
+ iv_dma = dma_map_single(jrdev, greq->giv, ivsize, DMA_TO_DEVICE);
+ if (assoc_nents || sg_dma_address(req->assoc) + req->assoclen !=
+ iv_dma || src_nents || iv_dma + ivsize != sg_dma_address(req->src))
+ contig &= ~GIV_SRC_CONTIG;
+ if (dst_nents || iv_dma + ivsize != sg_dma_address(req->dst))
+ contig &= ~GIV_DST_CONTIG;
+ if (unlikely(req->src != req->dst)) {
+ dst_nents = dst_nents ? : 1;
+ link_tbl_len += 1;
+ }
+ if (!(contig & GIV_SRC_CONTIG)) {
+ assoc_nents = assoc_nents ? : 1;
+ src_nents = src_nents ? : 1;
+ link_tbl_len += assoc_nents + 1 + src_nents;
+ if (likely(req->src == req->dst))
+ contig &= ~GIV_DST_CONTIG;
+ }
+ link_tbl_len += dst_nents;
+
+ link_tbl_bytes = link_tbl_len * sizeof(struct link_tbl_entry);
+
+ /* allocate space for base edesc and hw desc commands, link tables */
+ edesc = kmalloc(sizeof(struct aead_edesc) + desc_bytes +
+ link_tbl_bytes, GFP_DMA | flags);
+ if (!edesc) {
+ dev_err(jrdev, "could not allocate extended descriptor\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ edesc->assoc_nents = assoc_nents;
+ edesc->src_nents = src_nents;
+ edesc->dst_nents = dst_nents;
+ edesc->iv_dma = iv_dma;
+ edesc->link_tbl_bytes = link_tbl_bytes;
+ edesc->link_tbl = (void *)edesc + sizeof(struct aead_edesc) +
+ desc_bytes;
+ edesc->link_tbl_dma = dma_map_single(jrdev, edesc->link_tbl,
+ link_tbl_bytes, DMA_TO_DEVICE);
+ *contig_ptr = contig;
+
+ link_tbl_index = 0;
+ if (!(contig & GIV_SRC_CONTIG)) {
+ sg_to_link_tbl(req->assoc, assoc_nents,
+ edesc->link_tbl +
+ link_tbl_index, 0);
+ link_tbl_index += assoc_nents;
+ sg_to_link_tbl_one(edesc->link_tbl + link_tbl_index,
+ iv_dma, ivsize, 0);
+ link_tbl_index += 1;
+ sg_to_link_tbl_last(req->src, src_nents,
+ edesc->link_tbl +
+ link_tbl_index, 0);
+ link_tbl_index += src_nents;
+ }
+ if (unlikely(req->src != req->dst && !(contig & GIV_DST_CONTIG))) {
+ sg_to_link_tbl_one(edesc->link_tbl + link_tbl_index,
+ iv_dma, ivsize, 0);
+ link_tbl_index += 1;
+ sg_to_link_tbl_last(req->dst, dst_nents,
+ edesc->link_tbl + link_tbl_index, 0);
+ }
+
+ return edesc;
+}
+
+static int aead_givencrypt(struct aead_givcrypt_request *areq)
+{
+ struct aead_request *req = &areq->areq;
+ struct aead_edesc *edesc;
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ u32 contig;
+ u32 *desc;
+ int ret = 0;
+
+ req->cryptlen += ctx->authsize;
+
+ /* allocate extended descriptor */
+ edesc = aead_giv_edesc_alloc(areq, DESC_JOB_IO_LEN *
+ CAAM_CMD_SZ, &contig);
+
+ if (IS_ERR(edesc))
+ return PTR_ERR(edesc);
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "giv src@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
+ req->cryptlen, 1);
+#endif
+
+ /* Create and submit job descriptor*/
+ init_aead_giv_job(ctx->sh_desc_givenc,
+ ctx->sh_desc_givenc_dma, edesc, req, contig);
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "aead jobdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
+ desc_bytes(edesc->hw_desc), 1);
+#endif
+
+ desc = edesc->hw_desc;
+ ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
+ if (!ret) {
+ ret = -EINPROGRESS;
+ } else {
+ aead_unmap(jrdev, edesc, req);
+ kfree(edesc);
+ }
+
+ return ret;
+}
+
+/*
+ * allocate and map the ablkcipher extended descriptor for ablkcipher
+ */
+static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request
+ *req, int desc_bytes,
+ bool *iv_contig_out)
+{
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
+ struct device *jrdev = ctx->jrdev;
+ gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
+ CRYPTO_TFM_REQ_MAY_SLEEP)) ?
+ GFP_KERNEL : GFP_ATOMIC;
+ int src_nents, dst_nents = 0, link_tbl_bytes;
+ struct ablkcipher_edesc *edesc;
+ dma_addr_t iv_dma = 0;
+ bool iv_contig = false;
+ int sgc;
+ int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+ int link_tbl_index;
+
+ src_nents = sg_count(req->src, req->nbytes);
+
+ if (unlikely(req->dst != req->src))
+ dst_nents = sg_count(req->dst, req->nbytes);
+
+ if (likely(req->src == req->dst)) {
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL);
+ } else {
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE);
+ sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE);
+ }
+
+ /*
+ * Check if iv can be contiguous with source and destination.
+ * If so, include it. If not, create scatterlist.
+ */
+ iv_dma = dma_map_single(jrdev, req->info, ivsize, DMA_TO_DEVICE);
+ if (!src_nents && iv_dma + ivsize == sg_dma_address(req->src))
+ iv_contig = true;
+ else
+ src_nents = src_nents ? : 1;
+ link_tbl_bytes = ((iv_contig ? 0 : 1) + src_nents + dst_nents) *
+ sizeof(struct link_tbl_entry);
+
+ /* allocate space for base edesc and hw desc commands, link tables */
+ edesc = kmalloc(sizeof(struct ablkcipher_edesc) + desc_bytes +
+ link_tbl_bytes, GFP_DMA | flags);
+ if (!edesc) {
+ dev_err(jrdev, "could not allocate extended descriptor\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ edesc->src_nents = src_nents;
+ edesc->dst_nents = dst_nents;
+ edesc->link_tbl_bytes = link_tbl_bytes;
+ edesc->link_tbl = (void *)edesc + sizeof(struct ablkcipher_edesc) +
+ desc_bytes;
+
+ link_tbl_index = 0;
+ if (!iv_contig) {
+ sg_to_link_tbl_one(edesc->link_tbl, iv_dma, ivsize, 0);
+ sg_to_link_tbl_last(req->src, src_nents,
+ edesc->link_tbl + 1, 0);
+ link_tbl_index += 1 + src_nents;
+ }
+
+ if (unlikely(dst_nents)) {
+ sg_to_link_tbl_last(req->dst, dst_nents,
+ edesc->link_tbl + link_tbl_index, 0);
+ }
+
+ edesc->link_tbl_dma = dma_map_single(jrdev, edesc->link_tbl,
+ link_tbl_bytes, DMA_TO_DEVICE);
+ edesc->iv_dma = iv_dma;
+
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ablkcipher link_tbl@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, edesc->link_tbl,
+ link_tbl_bytes, 1);
+#endif
+
+ *iv_contig_out = iv_contig;
+ return edesc;
+}
+
+static int ablkcipher_encrypt(struct ablkcipher_request *req)
+{
+ struct ablkcipher_edesc *edesc;
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
+ struct device *jrdev = ctx->jrdev;
+ bool iv_contig;
+ u32 *desc;
+ int ret = 0;
+
+ /* allocate extended descriptor */
+ edesc = ablkcipher_edesc_alloc(req, DESC_JOB_IO_LEN *
+ CAAM_CMD_SZ, &iv_contig);
+ if (IS_ERR(edesc))
+ return PTR_ERR(edesc);
+
+ /* Create and submit job descriptor*/
+ init_ablkcipher_job(ctx->sh_desc_enc,
+ ctx->sh_desc_enc_dma, edesc, req, iv_contig);
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ablkcipher jobdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
+ desc_bytes(edesc->hw_desc), 1);
+#endif
+ desc = edesc->hw_desc;
+ ret = caam_jr_enqueue(jrdev, desc, ablkcipher_encrypt_done, req);
+
+ if (!ret) {
+ ret = -EINPROGRESS;
+ } else {
+ ablkcipher_unmap(jrdev, edesc, req);
+ kfree(edesc);
+ }
+
+ return ret;
+}
+
+static int ablkcipher_decrypt(struct ablkcipher_request *req)
+{
+ struct ablkcipher_edesc *edesc;
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
+ struct device *jrdev = ctx->jrdev;
+ bool iv_contig;
+ u32 *desc;
+ int ret = 0;
+
+ /* allocate extended descriptor */
+ edesc = ablkcipher_edesc_alloc(req, DESC_JOB_IO_LEN *
+ CAAM_CMD_SZ, &iv_contig);
+ if (IS_ERR(edesc))
+ return PTR_ERR(edesc);
+
+ /* Create and submit job descriptor*/
+ init_ablkcipher_job(ctx->sh_desc_dec,
+ ctx->sh_desc_dec_dma, edesc, req, iv_contig);
+ desc = edesc->hw_desc;
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "ablkcipher jobdesc@"xstr(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
+ desc_bytes(edesc->hw_desc), 1);
+#endif
+
+ ret = caam_jr_enqueue(jrdev, desc, ablkcipher_decrypt_done, req);
+ if (!ret) {
+ ret = -EINPROGRESS;
+ } else {
+ ablkcipher_unmap(jrdev, edesc, req);
+ kfree(edesc);
+ }
+
+ return ret;
+}
+
+#define template_aead template_u.aead
+#define template_ablkcipher template_u.ablkcipher
+struct caam_alg_template {
+ char name[CRYPTO_MAX_ALG_NAME];
+ char driver_name[CRYPTO_MAX_ALG_NAME];
+ unsigned int blocksize;
+ u32 type;
+ union {
+ struct ablkcipher_alg ablkcipher;
+ struct aead_alg aead;
+ struct blkcipher_alg blkcipher;
+ struct cipher_alg cipher;
+ struct compress_alg compress;
+ struct rng_alg rng;
+ } template_u;
+ u32 class1_alg_type;
+ u32 class2_alg_type;
+ u32 alg_op;
+};
+
+static struct caam_alg_template driver_algs[] = {
+ /* single-pass ipsec_esp descriptor */
+ {
+ .name = "authenc(hmac(md5),cbc(aes))",
+ .driver_name = "authenc-hmac-md5-cbc-aes-caam",
+ .blocksize = AES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = MD5_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_MD5 | OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_MD5 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha1),cbc(aes))",
+ .driver_name = "authenc-hmac-sha1-cbc-aes-caam",
+ .blocksize = AES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA1 | OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA1 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha224),cbc(aes))",
+ .driver_name = "authenc-hmac-sha224-cbc-aes-caam",
+ .blocksize = AES_BLOCK_SIZE,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA224 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA224 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha256),cbc(aes))",
+ .driver_name = "authenc-hmac-sha256-cbc-aes-caam",
+ .blocksize = AES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA256 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA256 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha384),cbc(aes))",
+ .driver_name = "authenc-hmac-sha384-cbc-aes-caam",
+ .blocksize = AES_BLOCK_SIZE,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA384 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA384 | OP_ALG_AAI_HMAC,
+ },
+
+ {
+ .name = "authenc(hmac(sha512),cbc(aes))",
+ .driver_name = "authenc-hmac-sha512-cbc-aes-caam",
+ .blocksize = AES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA512 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA512 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(md5),cbc(des3_ede))",
+ .driver_name = "authenc-hmac-md5-cbc-des3_ede-caam",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = MD5_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_MD5 | OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_MD5 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha1),cbc(des3_ede))",
+ .driver_name = "authenc-hmac-sha1-cbc-des3_ede-caam",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA1 | OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA1 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha224),cbc(des3_ede))",
+ .driver_name = "authenc-hmac-sha224-cbc-des3_ede-caam",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA224 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA224 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha256),cbc(des3_ede))",
+ .driver_name = "authenc-hmac-sha256-cbc-des3_ede-caam",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA256 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA256 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha384),cbc(des3_ede))",
+ .driver_name = "authenc-hmac-sha384-cbc-des3_ede-caam",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA384 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA384 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha512),cbc(des3_ede))",
+ .driver_name = "authenc-hmac-sha512-cbc-des3_ede-caam",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA512 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA512 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(md5),cbc(des))",
+ .driver_name = "authenc-hmac-md5-cbc-des-caam",
+ .blocksize = DES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = MD5_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_MD5 | OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_MD5 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha1),cbc(des))",
+ .driver_name = "authenc-hmac-sha1-cbc-des-caam",
+ .blocksize = DES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA1 | OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA1 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha224),cbc(des))",
+ .driver_name = "authenc-hmac-sha224-cbc-des-caam",
+ .blocksize = DES_BLOCK_SIZE,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA224 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA224 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha256),cbc(des))",
+ .driver_name = "authenc-hmac-sha256-cbc-des-caam",
+ .blocksize = DES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA256 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA256 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha384),cbc(des))",
+ .driver_name = "authenc-hmac-sha384-cbc-des-caam",
+ .blocksize = DES_BLOCK_SIZE,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA384 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA384 | OP_ALG_AAI_HMAC,
+ },
+ {
+ .name = "authenc(hmac(sha512),cbc(des))",
+ .driver_name = "authenc-hmac-sha512-cbc-des-caam",
+ .blocksize = DES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_AEAD,
+ .template_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
+ .class2_alg_type = OP_ALG_ALGSEL_SHA512 |
+ OP_ALG_AAI_HMAC_PRECOMP,
+ .alg_op = OP_ALG_ALGSEL_SHA512 | OP_ALG_AAI_HMAC,
+ },
+ /* ablkcipher descriptor */
+ {
+ .name = "cbc(aes)",
+ .driver_name = "cbc-aes-caam",
+ .blocksize = AES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_ABLKCIPHER,
+ .template_ablkcipher = {
+ .setkey = ablkcipher_setkey,
+ .encrypt = ablkcipher_encrypt,
+ .decrypt = ablkcipher_decrypt,
+ .geniv = "eseqiv",
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
+ },
+ {
+ .name = "cbc(des3_ede)",
+ .driver_name = "cbc-3des-caam",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_ABLKCIPHER,
+ .template_ablkcipher = {
+ .setkey = ablkcipher_setkey,
+ .encrypt = ablkcipher_encrypt,
+ .decrypt = ablkcipher_decrypt,
+ .geniv = "eseqiv",
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
+ },
+ {
+ .name = "cbc(des)",
+ .driver_name = "cbc-des-caam",
+ .blocksize = DES_BLOCK_SIZE,
+ .type = CRYPTO_ALG_TYPE_ABLKCIPHER,
+ .template_ablkcipher = {
+ .setkey = ablkcipher_setkey,
+ .encrypt = ablkcipher_encrypt,
+ .decrypt = ablkcipher_decrypt,
+ .geniv = "eseqiv",
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .ivsize = DES_BLOCK_SIZE,
+ },
+ .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
+ }
+};
+
+struct caam_crypto_alg {
+ struct list_head entry;
+ struct device *ctrldev;
+ int class1_alg_type;
+ int class2_alg_type;
+ int alg_op;
+ struct crypto_alg crypto_alg;
+};
+
+static int caam_cra_init(struct crypto_tfm *tfm)
+{
+ struct crypto_alg *alg = tfm->__crt_alg;
+ struct caam_crypto_alg *caam_alg =
+ container_of(alg, struct caam_crypto_alg, crypto_alg);
+ struct caam_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct caam_drv_private *priv = dev_get_drvdata(caam_alg->ctrldev);
+ int tgt_jr = atomic_inc_return(&priv->tfm_count);
+
+ /*
+ * distribute tfms across job rings to ensure in-order
+ * crypto request processing per tfm
+ */
+ ctx->jrdev = priv->algapi_jr[(tgt_jr / 2) % priv->num_jrs_for_algapi];
+
+ /* copy descriptor header template value */
+ ctx->class1_alg_type = OP_TYPE_CLASS1_ALG | caam_alg->class1_alg_type;
+ ctx->class2_alg_type = OP_TYPE_CLASS2_ALG | caam_alg->class2_alg_type;
+ ctx->alg_op = OP_TYPE_CLASS2_ALG | caam_alg->alg_op;
+
+ return 0;
+}
+
+static void caam_cra_exit(struct crypto_tfm *tfm)
+{
+ struct caam_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ if (ctx->sh_desc_enc_dma &&
+ !dma_mapping_error(ctx->jrdev, ctx->sh_desc_enc_dma))
+ dma_unmap_single(ctx->jrdev, ctx->sh_desc_enc_dma,
+ desc_bytes(ctx->sh_desc_enc), DMA_TO_DEVICE);
+ if (ctx->sh_desc_dec_dma &&
+ !dma_mapping_error(ctx->jrdev, ctx->sh_desc_dec_dma))
+ dma_unmap_single(ctx->jrdev, ctx->sh_desc_dec_dma,
+ desc_bytes(ctx->sh_desc_dec), DMA_TO_DEVICE);
+ if (ctx->sh_desc_givenc_dma &&
+ !dma_mapping_error(ctx->jrdev, ctx->sh_desc_givenc_dma))
+ dma_unmap_single(ctx->jrdev, ctx->sh_desc_givenc_dma,
+ desc_bytes(ctx->sh_desc_givenc),
+ DMA_TO_DEVICE);
+}
+
+static void __exit caam_algapi_exit(void)
+{
+
+ struct device_node *dev_node;
+ struct platform_device *pdev;
+ struct device *ctrldev;
+ struct caam_drv_private *priv;
+ struct caam_crypto_alg *t_alg, *n;
+ int i, err;
+
+ dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
+ if (!dev_node)
+ return;
+
+ pdev = of_find_device_by_node(dev_node);
+ if (!pdev)
+ return;
+
+ ctrldev = &pdev->dev;
+ of_node_put(dev_node);
+ priv = dev_get_drvdata(ctrldev);
+
+ if (!priv->alg_list.next)
+ return;
+
+ list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) {
+ crypto_unregister_alg(&t_alg->crypto_alg);
+ list_del(&t_alg->entry);
+ kfree(t_alg);
+ }
+
+ for (i = 0; i < priv->total_jobrs; i++) {
+ err = caam_jr_deregister(priv->algapi_jr[i]);
+ if (err < 0)
+ break;
+ }
+ kfree(priv->algapi_jr);
+}
+
+static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev,
+ struct caam_alg_template
+ *template)
+{
+ struct caam_crypto_alg *t_alg;
+ struct crypto_alg *alg;
+
+ t_alg = kzalloc(sizeof(struct caam_crypto_alg), GFP_KERNEL);
+ if (!t_alg) {
+ dev_err(ctrldev, "failed to allocate t_alg\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ alg = &t_alg->crypto_alg;
+
+ snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", template->name);
+ snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->driver_name);
+ alg->cra_module = THIS_MODULE;
+ alg->cra_init = caam_cra_init;
+ alg->cra_exit = caam_cra_exit;
+ alg->cra_priority = CAAM_CRA_PRIORITY;
+ alg->cra_blocksize = template->blocksize;
+ alg->cra_alignmask = 0;
+ alg->cra_ctxsize = sizeof(struct caam_ctx);
+ alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY |
+ template->type;
+ switch (template->type) {
+ case CRYPTO_ALG_TYPE_ABLKCIPHER:
+ alg->cra_type = &crypto_ablkcipher_type;
+ alg->cra_ablkcipher = template->template_ablkcipher;
+ break;
+ case CRYPTO_ALG_TYPE_AEAD:
+ alg->cra_type = &crypto_aead_type;
+ alg->cra_aead = template->template_aead;
+ break;
+ }
+
+ t_alg->class1_alg_type = template->class1_alg_type;
+ t_alg->class2_alg_type = template->class2_alg_type;
+ t_alg->alg_op = template->alg_op;
+ t_alg->ctrldev = ctrldev;
+
+ return t_alg;
+}
+
+static int __init caam_algapi_init(void)
+{
+ struct device_node *dev_node;
+ struct platform_device *pdev;
+ struct device *ctrldev, **jrdev;
+ struct caam_drv_private *priv;
+ int i = 0, err = 0;
+
+ dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
+ if (!dev_node)
+ return -ENODEV;
+
+ pdev = of_find_device_by_node(dev_node);
+ if (!pdev)
+ return -ENODEV;
+
+ ctrldev = &pdev->dev;
+ priv = dev_get_drvdata(ctrldev);
+ of_node_put(dev_node);
+
+ INIT_LIST_HEAD(&priv->alg_list);
+
+ jrdev = kmalloc(sizeof(*jrdev) * priv->total_jobrs, GFP_KERNEL);
+ if (!jrdev)
+ return -ENOMEM;
+
+ for (i = 0; i < priv->total_jobrs; i++) {
+ err = caam_jr_register(ctrldev, &jrdev[i]);
+ if (err < 0)
+ break;
+ }
+ if (err < 0 && i == 0) {
+ dev_err(ctrldev, "algapi error in job ring registration: %d\n",
+ err);
+ kfree(jrdev);
+ return err;
+ }
+
+ priv->num_jrs_for_algapi = i;
+ priv->algapi_jr = jrdev;
+ atomic_set(&priv->tfm_count, -1);
+
+ /* register crypto algorithms the device supports */
+ for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
+ /* TODO: check if h/w supports alg */
+ struct caam_crypto_alg *t_alg;
+
+ t_alg = caam_alg_alloc(ctrldev, &driver_algs[i]);
+ if (IS_ERR(t_alg)) {
+ err = PTR_ERR(t_alg);
+ dev_warn(ctrldev, "%s alg allocation failed\n",
+ driver_algs[i].driver_name);
+ continue;
+ }
+
+ err = crypto_register_alg(&t_alg->crypto_alg);
+ if (err) {
+ dev_warn(ctrldev, "%s alg registration failed\n",
+ t_alg->crypto_alg.cra_driver_name);
+ kfree(t_alg);
+ } else
+ list_add_tail(&t_alg->entry, &priv->alg_list);
+ }
+ if (!list_empty(&priv->alg_list))
+ dev_info(ctrldev, "%s algorithms registered in /proc/crypto\n",
+ (char *)of_get_property(dev_node, "compatible", NULL));
+
+ return err;
+}
+
+module_init(caam_algapi_init);
+module_exit(caam_algapi_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("FSL CAAM support for crypto API");
+MODULE_AUTHOR("Freescale Semiconductor - NMG/STC");