Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4533 insertions, 0 deletions

diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
new file mode 100644
index 0000000000..16298ae4a0
--- /dev/null
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -0,0 +1,4533 @@
+/*
+ * This file is part of the Chelsio T6 Crypto driver for Linux.
+ *
+ * Copyright (c) 2003-2016 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Written and Maintained by:
+ *	Manoj Malviya (manojmalviya@chelsio.com)
+ *	Atul Gupta (atul.gupta@chelsio.com)
+ *	Jitendra Lulla (jlulla@chelsio.com)
+ *	Yeshaswi M R Gowda (yeshaswi@chelsio.com)
+ *	Harsh Jain (harsh@chelsio.com)
+ */
+
+#define pr_fmt(fmt) "chcr:" fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/skbuff.h>
+#include <linux/rtnetlink.h>
+#include <linux/highmem.h>
+#include <linux/scatterlist.h>
+
+#include <crypto/aes.h>
+#include <crypto/algapi.h>
+#include <crypto/hash.h>
+#include <crypto/gcm.h>
+#include <crypto/sha1.h>
+#include <crypto/sha2.h>
+#include <crypto/authenc.h>
+#include <crypto/ctr.h>
+#include <crypto/gf128mul.h>
+#include <crypto/internal/aead.h>
+#include <crypto/null.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/aead.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/internal/hash.h>
+
+#include "t4fw_api.h"
+#include "t4_msg.h"
+#include "chcr_core.h"
+#include "chcr_algo.h"
+#include "chcr_crypto.h"
+
+#define IV AES_BLOCK_SIZE
+
+static unsigned int sgl_ent_len[] = {
+	0, 0, 16, 24, 40, 48, 64, 72, 88,
+	96, 112, 120, 136, 144, 160, 168, 184,
+	192, 208, 216, 232, 240, 256, 264, 280,
+	288, 304, 312, 328, 336, 352, 360, 376
+};
+
+static unsigned int dsgl_ent_len[] = {
+	0, 32, 32, 48, 48, 64, 64, 80, 80,
+	112, 112, 128, 128, 144, 144, 160, 160,
+	192, 192, 208, 208, 224, 224, 240, 240,
+	272, 272, 288, 288, 304, 304, 320, 320
+};
+
+static u32 round_constant[11] = {
+	0x01000000, 0x02000000, 0x04000000, 0x08000000,
+	0x10000000, 0x20000000, 0x40000000, 0x80000000,
+	0x1B000000, 0x36000000, 0x6C000000
+};
+
+static int chcr_handle_cipher_resp(struct skcipher_request *req,
+				   unsigned char *input, int err);
+
+static inline  struct chcr_aead_ctx *AEAD_CTX(struct chcr_context *ctx)
+{
+	return &ctx->crypto_ctx->aeadctx;
+}
+
+static inline struct ablk_ctx *ABLK_CTX(struct chcr_context *ctx)
+{
+	return &ctx->crypto_ctx->ablkctx;
+}
+
+static inline struct hmac_ctx *HMAC_CTX(struct chcr_context *ctx)
+{
+	return &ctx->crypto_ctx->hmacctx;
+}
+
+static inline struct chcr_gcm_ctx *GCM_CTX(struct chcr_aead_ctx *gctx)
+{
+	return gctx->ctx->gcm;
+}
+
+static inline struct chcr_authenc_ctx *AUTHENC_CTX(struct chcr_aead_ctx *gctx)
+{
+	return gctx->ctx->authenc;
+}
+
+static inline struct uld_ctx *ULD_CTX(struct chcr_context *ctx)
+{
+	return container_of(ctx->dev, struct uld_ctx, dev);
+}
+
+static inline void chcr_init_hctx_per_wr(struct chcr_ahash_req_ctx *reqctx)
+{
+	memset(&reqctx->hctx_wr, 0, sizeof(struct chcr_hctx_per_wr));
+}
+
+static int sg_nents_xlen(struct scatterlist *sg, unsigned int reqlen,
+			 unsigned int entlen,
+			 unsigned int skip)
+{
+	int nents = 0;
+	unsigned int less;
+	unsigned int skip_len = 0;
+
+	while (sg && skip) {
+		if (sg_dma_len(sg) <= skip) {
+			skip -= sg_dma_len(sg);
+			skip_len = 0;
+			sg = sg_next(sg);
+		} else {
+			skip_len = skip;
+			skip = 0;
+		}
+	}
+
+	while (sg && reqlen) {
+		less = min(reqlen, sg_dma_len(sg) - skip_len);
+		nents += DIV_ROUND_UP(less, entlen);
+		reqlen -= less;
+		skip_len = 0;
+		sg = sg_next(sg);
+	}
+	return nents;
+}
+
+static inline int get_aead_subtype(struct crypto_aead *aead)
+{
+	struct aead_alg *alg = crypto_aead_alg(aead);
+	struct chcr_alg_template *chcr_crypto_alg =
+		container_of(alg, struct chcr_alg_template, alg.aead);
+	return chcr_crypto_alg->type & CRYPTO_ALG_SUB_TYPE_MASK;
+}
+
+void chcr_verify_tag(struct aead_request *req, u8 *input, int *err)
+{
+	u8 temp[SHA512_DIGEST_SIZE];
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	int authsize = crypto_aead_authsize(tfm);
+	struct cpl_fw6_pld *fw6_pld;
+	int cmp = 0;
+
+	fw6_pld = (struct cpl_fw6_pld *)input;
+	if ((get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) ||
+	    (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_GCM)) {
+		cmp = crypto_memneq(&fw6_pld->data[2], (fw6_pld + 1), authsize);
+	} else {
+
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src), temp,
+				authsize, req->assoclen +
+				req->cryptlen - authsize);
+		cmp = crypto_memneq(temp, (fw6_pld + 1), authsize);
+	}
+	if (cmp)
+		*err = -EBADMSG;
+	else
+		*err = 0;
+}
+
+static int chcr_inc_wrcount(struct chcr_dev *dev)
+{
+	if (dev->state == CHCR_DETACH)
+		return 1;
+	atomic_inc(&dev->inflight);
+	return 0;
+}
+
+static inline void chcr_dec_wrcount(struct chcr_dev *dev)
+{
+	atomic_dec(&dev->inflight);
+}
+
+static inline int chcr_handle_aead_resp(struct aead_request *req,
+					 unsigned char *input,
+					 int err)
+{
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_dev *dev = a_ctx(tfm)->dev;
+
+	chcr_aead_common_exit(req);
+	if (reqctx->verify == VERIFY_SW) {
+		chcr_verify_tag(req, input, &err);
+		reqctx->verify = VERIFY_HW;
+	}
+	chcr_dec_wrcount(dev);
+	aead_request_complete(req, err);
+
+	return err;
+}
+
+static void get_aes_decrypt_key(unsigned char *dec_key,
+				       const unsigned char *key,
+				       unsigned int keylength)
+{
+	u32 temp;
+	u32 w_ring[MAX_NK];
+	int i, j, k;
+	u8  nr, nk;
+
+	switch (keylength) {
+	case AES_KEYLENGTH_128BIT:
+		nk = KEYLENGTH_4BYTES;
+		nr = NUMBER_OF_ROUNDS_10;
+		break;
+	case AES_KEYLENGTH_192BIT:
+		nk = KEYLENGTH_6BYTES;
+		nr = NUMBER_OF_ROUNDS_12;
+		break;
+	case AES_KEYLENGTH_256BIT:
+		nk = KEYLENGTH_8BYTES;
+		nr = NUMBER_OF_ROUNDS_14;
+		break;
+	default:
+		return;
+	}
+	for (i = 0; i < nk; i++)
+		w_ring[i] = get_unaligned_be32(&key[i * 4]);
+
+	i = 0;
+	temp = w_ring[nk - 1];
+	while (i + nk < (nr + 1) * 4) {
+		if (!(i % nk)) {
+			/* RotWord(temp) */
+			temp = (temp << 8) | (temp >> 24);
+			temp = aes_ks_subword(temp);
+			temp ^= round_constant[i / nk];
+		} else if (nk == 8 && (i % 4 == 0)) {
+			temp = aes_ks_subword(temp);
+		}
+		w_ring[i % nk] ^= temp;
+		temp = w_ring[i % nk];
+		i++;
+	}
+	i--;
+	for (k = 0, j = i % nk; k < nk; k++) {
+		put_unaligned_be32(w_ring[j], &dec_key[k * 4]);
+		j--;
+		if (j < 0)
+			j += nk;
+	}
+}
+
+static struct crypto_shash *chcr_alloc_shash(unsigned int ds)
+{
+	struct crypto_shash *base_hash = ERR_PTR(-EINVAL);
+
+	switch (ds) {
+	case SHA1_DIGEST_SIZE:
+		base_hash = crypto_alloc_shash("sha1", 0, 0);
+		break;
+	case SHA224_DIGEST_SIZE:
+		base_hash = crypto_alloc_shash("sha224", 0, 0);
+		break;
+	case SHA256_DIGEST_SIZE:
+		base_hash = crypto_alloc_shash("sha256", 0, 0);
+		break;
+	case SHA384_DIGEST_SIZE:
+		base_hash = crypto_alloc_shash("sha384", 0, 0);
+		break;
+	case SHA512_DIGEST_SIZE:
+		base_hash = crypto_alloc_shash("sha512", 0, 0);
+		break;
+	}
+
+	return base_hash;
+}
+
+static int chcr_compute_partial_hash(struct shash_desc *desc,
+				     char *iopad, char *result_hash,
+				     int digest_size)
+{
+	struct sha1_state sha1_st;
+	struct sha256_state sha256_st;
+	struct sha512_state sha512_st;
+	int error;
+
+	if (digest_size == SHA1_DIGEST_SIZE) {
+		error = crypto_shash_init(desc) ?:
+			crypto_shash_update(desc, iopad, SHA1_BLOCK_SIZE) ?:
+			crypto_shash_export(desc, (void *)&sha1_st);
+		memcpy(result_hash, sha1_st.state, SHA1_DIGEST_SIZE);
+	} else if (digest_size == SHA224_DIGEST_SIZE) {
+		error = crypto_shash_init(desc) ?:
+			crypto_shash_update(desc, iopad, SHA256_BLOCK_SIZE) ?:
+			crypto_shash_export(desc, (void *)&sha256_st);
+		memcpy(result_hash, sha256_st.state, SHA256_DIGEST_SIZE);
+
+	} else if (digest_size == SHA256_DIGEST_SIZE) {
+		error = crypto_shash_init(desc) ?:
+			crypto_shash_update(desc, iopad, SHA256_BLOCK_SIZE) ?:
+			crypto_shash_export(desc, (void *)&sha256_st);
+		memcpy(result_hash, sha256_st.state, SHA256_DIGEST_SIZE);
+
+	} else if (digest_size == SHA384_DIGEST_SIZE) {
+		error = crypto_shash_init(desc) ?:
+			crypto_shash_update(desc, iopad, SHA512_BLOCK_SIZE) ?:
+			crypto_shash_export(desc, (void *)&sha512_st);
+		memcpy(result_hash, sha512_st.state, SHA512_DIGEST_SIZE);
+
+	} else if (digest_size == SHA512_DIGEST_SIZE) {
+		error = crypto_shash_init(desc) ?:
+			crypto_shash_update(desc, iopad, SHA512_BLOCK_SIZE) ?:
+			crypto_shash_export(desc, (void *)&sha512_st);
+		memcpy(result_hash, sha512_st.state, SHA512_DIGEST_SIZE);
+	} else {
+		error = -EINVAL;
+		pr_err("Unknown digest size %d\n", digest_size);
+	}
+	return error;
+}
+
+static void chcr_change_order(char *buf, int ds)
+{
+	int i;
+
+	if (ds == SHA512_DIGEST_SIZE) {
+		for (i = 0; i < (ds / sizeof(u64)); i++)
+			*((__be64 *)buf + i) =
+				cpu_to_be64(*((u64 *)buf + i));
+	} else {
+		for (i = 0; i < (ds / sizeof(u32)); i++)
+			*((__be32 *)buf + i) =
+				cpu_to_be32(*((u32 *)buf + i));
+	}
+}
+
+static inline int is_hmac(struct crypto_tfm *tfm)
+{
+	struct crypto_alg *alg = tfm->__crt_alg;
+	struct chcr_alg_template *chcr_crypto_alg =
+		container_of(__crypto_ahash_alg(alg), struct chcr_alg_template,
+			     alg.hash);
+	if (chcr_crypto_alg->type == CRYPTO_ALG_TYPE_HMAC)
+		return 1;
+	return 0;
+}
+
+static inline void dsgl_walk_init(struct dsgl_walk *walk,
+				   struct cpl_rx_phys_dsgl *dsgl)
+{
+	walk->dsgl = dsgl;
+	walk->nents = 0;
+	walk->to = (struct phys_sge_pairs *)(dsgl + 1);
+}
+
+static inline void dsgl_walk_end(struct dsgl_walk *walk, unsigned short qid,
+				 int pci_chan_id)
+{
+	struct cpl_rx_phys_dsgl *phys_cpl;
+
+	phys_cpl = walk->dsgl;
+
+	phys_cpl->op_to_tid = htonl(CPL_RX_PHYS_DSGL_OPCODE_V(CPL_RX_PHYS_DSGL)
+				    | CPL_RX_PHYS_DSGL_ISRDMA_V(0));
+	phys_cpl->pcirlxorder_to_noofsgentr =
+		htonl(CPL_RX_PHYS_DSGL_PCIRLXORDER_V(0) |
+		      CPL_RX_PHYS_DSGL_PCINOSNOOP_V(0) |
+		      CPL_RX_PHYS_DSGL_PCITPHNTENB_V(0) |
+		      CPL_RX_PHYS_DSGL_PCITPHNT_V(0) |
+		      CPL_RX_PHYS_DSGL_DCAID_V(0) |
+		      CPL_RX_PHYS_DSGL_NOOFSGENTR_V(walk->nents));
+	phys_cpl->rss_hdr_int.opcode = CPL_RX_PHYS_ADDR;
+	phys_cpl->rss_hdr_int.qid = htons(qid);
+	phys_cpl->rss_hdr_int.hash_val = 0;
+	phys_cpl->rss_hdr_int.channel = pci_chan_id;
+}
+
+static inline void dsgl_walk_add_page(struct dsgl_walk *walk,
+					size_t size,
+					dma_addr_t addr)
+{
+	int j;
+
+	if (!size)
+		return;
+	j = walk->nents;
+	walk->to->len[j % 8] = htons(size);
+	walk->to->addr[j % 8] = cpu_to_be64(addr);
+	j++;
+	if ((j % 8) == 0)
+		walk->to++;
+	walk->nents = j;
+}
+
+static void  dsgl_walk_add_sg(struct dsgl_walk *walk,
+			   struct scatterlist *sg,
+			      unsigned int slen,
+			      unsigned int skip)
+{
+	int skip_len = 0;
+	unsigned int left_size = slen, len = 0;
+	unsigned int j = walk->nents;
+	int offset, ent_len;
+
+	if (!slen)
+		return;
+	while (sg && skip) {
+		if (sg_dma_len(sg) <= skip) {
+			skip -= sg_dma_len(sg);
+			skip_len = 0;
+			sg = sg_next(sg);
+		} else {
+			skip_len = skip;
+			skip = 0;
+		}
+	}
+
+	while (left_size && sg) {
+		len = min_t(u32, left_size, sg_dma_len(sg) - skip_len);
+		offset = 0;
+		while (len) {
+			ent_len =  min_t(u32, len, CHCR_DST_SG_SIZE);
+			walk->to->len[j % 8] = htons(ent_len);
+			walk->to->addr[j % 8] = cpu_to_be64(sg_dma_address(sg) +
+						      offset + skip_len);
+			offset += ent_len;
+			len -= ent_len;
+			j++;
+			if ((j % 8) == 0)
+				walk->to++;
+		}
+		walk->last_sg = sg;
+		walk->last_sg_len = min_t(u32, left_size, sg_dma_len(sg) -
+					  skip_len) + skip_len;
+		left_size -= min_t(u32, left_size, sg_dma_len(sg) - skip_len);
+		skip_len = 0;
+		sg = sg_next(sg);
+	}
+	walk->nents = j;
+}
+
+static inline void ulptx_walk_init(struct ulptx_walk *walk,
+				   struct ulptx_sgl *ulp)
+{
+	walk->sgl = ulp;
+	walk->nents = 0;
+	walk->pair_idx = 0;
+	walk->pair = ulp->sge;
+	walk->last_sg = NULL;
+	walk->last_sg_len = 0;
+}
+
+static inline void ulptx_walk_end(struct ulptx_walk *walk)
+{
+	walk->sgl->cmd_nsge = htonl(ULPTX_CMD_V(ULP_TX_SC_DSGL) |
+			      ULPTX_NSGE_V(walk->nents));
+}
+
+
+static inline void ulptx_walk_add_page(struct ulptx_walk *walk,
+					size_t size,
+					dma_addr_t addr)
+{
+	if (!size)
+		return;
+
+	if (walk->nents == 0) {
+		walk->sgl->len0 = cpu_to_be32(size);
+		walk->sgl->addr0 = cpu_to_be64(addr);
+	} else {
+		walk->pair->addr[walk->pair_idx] = cpu_to_be64(addr);
+		walk->pair->len[walk->pair_idx] = cpu_to_be32(size);
+		walk->pair_idx = !walk->pair_idx;
+		if (!walk->pair_idx)
+			walk->pair++;
+	}
+	walk->nents++;
+}
+
+static void  ulptx_walk_add_sg(struct ulptx_walk *walk,
+					struct scatterlist *sg,
+			       unsigned int len,
+			       unsigned int skip)
+{
+	int small;
+	int skip_len = 0;
+	unsigned int sgmin;
+
+	if (!len)
+		return;
+	while (sg && skip) {
+		if (sg_dma_len(sg) <= skip) {
+			skip -= sg_dma_len(sg);
+			skip_len = 0;
+			sg = sg_next(sg);
+		} else {
+			skip_len = skip;
+			skip = 0;
+		}
+	}
+	WARN(!sg, "SG should not be null here\n");
+	if (sg && (walk->nents == 0)) {
+		small = min_t(unsigned int, sg_dma_len(sg) - skip_len, len);
+		sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE);
+		walk->sgl->len0 = cpu_to_be32(sgmin);
+		walk->sgl->addr0 = cpu_to_be64(sg_dma_address(sg) + skip_len);
+		walk->nents++;
+		len -= sgmin;
+		walk->last_sg = sg;
+		walk->last_sg_len = sgmin + skip_len;
+		skip_len += sgmin;
+		if (sg_dma_len(sg) == skip_len) {
+			sg = sg_next(sg);
+			skip_len = 0;
+		}
+	}
+
+	while (sg && len) {
+		small = min(sg_dma_len(sg) - skip_len, len);
+		sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE);
+		walk->pair->len[walk->pair_idx] = cpu_to_be32(sgmin);
+		walk->pair->addr[walk->pair_idx] =
+			cpu_to_be64(sg_dma_address(sg) + skip_len);
+		walk->pair_idx = !walk->pair_idx;
+		walk->nents++;
+		if (!walk->pair_idx)
+			walk->pair++;
+		len -= sgmin;
+		skip_len += sgmin;
+		walk->last_sg = sg;
+		walk->last_sg_len = skip_len;
+		if (sg_dma_len(sg) == skip_len) {
+			sg = sg_next(sg);
+			skip_len = 0;
+		}
+	}
+}
+
+static inline int get_cryptoalg_subtype(struct crypto_skcipher *tfm)
+{
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct chcr_alg_template *chcr_crypto_alg =
+		container_of(alg, struct chcr_alg_template, alg.skcipher);
+
+	return chcr_crypto_alg->type & CRYPTO_ALG_SUB_TYPE_MASK;
+}
+
+static int cxgb4_is_crypto_q_full(struct net_device *dev, unsigned int idx)
+{
+	struct adapter *adap = netdev2adap(dev);
+	struct sge_uld_txq_info *txq_info =
+		adap->sge.uld_txq_info[CXGB4_TX_CRYPTO];
+	struct sge_uld_txq *txq;
+	int ret = 0;
+
+	local_bh_disable();
+	txq = &txq_info->uldtxq[idx];
+	spin_lock(&txq->sendq.lock);
+	if (txq->full)
+		ret = -1;
+	spin_unlock(&txq->sendq.lock);
+	local_bh_enable();
+	return ret;
+}
+
+static int generate_copy_rrkey(struct ablk_ctx *ablkctx,
+			       struct _key_ctx *key_ctx)
+{
+	if (ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC) {
+		memcpy(key_ctx->key, ablkctx->rrkey, ablkctx->enckey_len);
+	} else {
+		memcpy(key_ctx->key,
+		       ablkctx->key + (ablkctx->enckey_len >> 1),
+		       ablkctx->enckey_len >> 1);
+		memcpy(key_ctx->key + (ablkctx->enckey_len >> 1),
+		       ablkctx->rrkey, ablkctx->enckey_len >> 1);
+	}
+	return 0;
+}
+
+static int chcr_hash_ent_in_wr(struct scatterlist *src,
+			     unsigned int minsg,
+			     unsigned int space,
+			     unsigned int srcskip)
+{
+	int srclen = 0;
+	int srcsg = minsg;
+	int soffset = 0, sless;
+
+	if (sg_dma_len(src) == srcskip) {
+		src = sg_next(src);
+		srcskip = 0;
+	}
+	while (src && space > (sgl_ent_len[srcsg + 1])) {
+		sless = min_t(unsigned int, sg_dma_len(src) - soffset -	srcskip,
+							CHCR_SRC_SG_SIZE);
+		srclen += sless;
+		soffset += sless;
+		srcsg++;
+		if (sg_dma_len(src) == (soffset + srcskip)) {
+			src = sg_next(src);
+			soffset = 0;
+			srcskip = 0;
+		}
+	}
+	return srclen;
+}
+
+static int chcr_sg_ent_in_wr(struct scatterlist *src,
+			     struct scatterlist *dst,
+			     unsigned int minsg,
+			     unsigned int space,
+			     unsigned int srcskip,
+			     unsigned int dstskip)
+{
+	int srclen = 0, dstlen = 0;
+	int srcsg = minsg, dstsg = minsg;
+	int offset = 0, soffset = 0, less, sless = 0;
+
+	if (sg_dma_len(src) == srcskip) {
+		src = sg_next(src);
+		srcskip = 0;
+	}
+	if (sg_dma_len(dst) == dstskip) {
+		dst = sg_next(dst);
+		dstskip = 0;
+	}
+
+	while (src && dst &&
+	       space > (sgl_ent_len[srcsg + 1] + dsgl_ent_len[dstsg])) {
+		sless = min_t(unsigned int, sg_dma_len(src) - srcskip - soffset,
+				CHCR_SRC_SG_SIZE);
+		srclen += sless;
+		srcsg++;
+		offset = 0;
+		while (dst && ((dstsg + 1) <= MAX_DSGL_ENT) &&
+		       space > (sgl_ent_len[srcsg] + dsgl_ent_len[dstsg + 1])) {
+			if (srclen <= dstlen)
+				break;
+			less = min_t(unsigned int, sg_dma_len(dst) - offset -
+				     dstskip, CHCR_DST_SG_SIZE);
+			dstlen += less;
+			offset += less;
+			if ((offset + dstskip) == sg_dma_len(dst)) {
+				dst = sg_next(dst);
+				offset = 0;
+			}
+			dstsg++;
+			dstskip = 0;
+		}
+		soffset += sless;
+		if ((soffset + srcskip) == sg_dma_len(src)) {
+			src = sg_next(src);
+			srcskip = 0;
+			soffset = 0;
+		}
+
+	}
+	return min(srclen, dstlen);
+}
+
+static int chcr_cipher_fallback(struct crypto_skcipher *cipher,
+				struct skcipher_request *req,
+				u8 *iv,
+				unsigned short op_type)
+{
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	int err;
+
+	skcipher_request_set_tfm(&reqctx->fallback_req, cipher);
+	skcipher_request_set_callback(&reqctx->fallback_req, req->base.flags,
+				      req->base.complete, req->base.data);
+	skcipher_request_set_crypt(&reqctx->fallback_req, req->src, req->dst,
+				   req->cryptlen, iv);
+
+	err = op_type ? crypto_skcipher_decrypt(&reqctx->fallback_req) :
+			crypto_skcipher_encrypt(&reqctx->fallback_req);
+
+	return err;
+
+}
+
+static inline int get_qidxs(struct crypto_async_request *req,
+			    unsigned int *txqidx, unsigned int *rxqidx)
+{
+	struct crypto_tfm *tfm = req->tfm;
+	int ret = 0;
+
+	switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
+	case CRYPTO_ALG_TYPE_AEAD:
+	{
+		struct aead_request *aead_req =
+			container_of(req, struct aead_request, base);
+		struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(aead_req);
+		*txqidx = reqctx->txqidx;
+		*rxqidx = reqctx->rxqidx;
+		break;
+	}
+	case CRYPTO_ALG_TYPE_SKCIPHER:
+	{
+		struct skcipher_request *sk_req =
+			container_of(req, struct skcipher_request, base);
+		struct chcr_skcipher_req_ctx *reqctx =
+			skcipher_request_ctx(sk_req);
+		*txqidx = reqctx->txqidx;
+		*rxqidx = reqctx->rxqidx;
+		break;
+	}
+	case CRYPTO_ALG_TYPE_AHASH:
+	{
+		struct ahash_request *ahash_req =
+			container_of(req, struct ahash_request, base);
+		struct chcr_ahash_req_ctx *reqctx =
+			ahash_request_ctx(ahash_req);
+		*txqidx = reqctx->txqidx;
+		*rxqidx = reqctx->rxqidx;
+		break;
+	}
+	default:
+		ret = -EINVAL;
+		/* should never get here */
+		BUG();
+		break;
+	}
+	return ret;
+}
+
+static inline void create_wreq(struct chcr_context *ctx,
+			       struct chcr_wr *chcr_req,
+			       struct crypto_async_request *req,
+			       unsigned int imm,
+			       int hash_sz,
+			       unsigned int len16,
+			       unsigned int sc_len,
+			       unsigned int lcb)
+{
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	unsigned int tx_channel_id, rx_channel_id;
+	unsigned int txqidx = 0, rxqidx = 0;
+	unsigned int qid, fid, portno;
+
+	get_qidxs(req, &txqidx, &rxqidx);
+	qid = u_ctx->lldi.rxq_ids[rxqidx];
+	fid = u_ctx->lldi.rxq_ids[0];
+	portno = rxqidx / ctx->rxq_perchan;
+	tx_channel_id = txqidx / ctx->txq_perchan;
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[portno]);
+
+
+	chcr_req->wreq.op_to_cctx_size = FILL_WR_OP_CCTX_SIZE;
+	chcr_req->wreq.pld_size_hash_size =
+		htonl(FW_CRYPTO_LOOKASIDE_WR_HASH_SIZE_V(hash_sz));
+	chcr_req->wreq.len16_pkd =
+		htonl(FW_CRYPTO_LOOKASIDE_WR_LEN16_V(DIV_ROUND_UP(len16, 16)));
+	chcr_req->wreq.cookie = cpu_to_be64((uintptr_t)req);
+	chcr_req->wreq.rx_chid_to_rx_q_id = FILL_WR_RX_Q_ID(rx_channel_id, qid,
+							    !!lcb, txqidx);
+
+	chcr_req->ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(tx_channel_id, fid);
+	chcr_req->ulptx.len = htonl((DIV_ROUND_UP(len16, 16) -
+				((sizeof(chcr_req->wreq)) >> 4)));
+	chcr_req->sc_imm.cmd_more = FILL_CMD_MORE(!imm);
+	chcr_req->sc_imm.len = cpu_to_be32(sizeof(struct cpl_tx_sec_pdu) +
+					   sizeof(chcr_req->key_ctx) + sc_len);
+}
+
+/**
+ *	create_cipher_wr - form the WR for cipher operations
+ *	@wrparam: Container for create_cipher_wr()'s parameters
+ */
+static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(wrparam->req);
+	struct chcr_context *ctx = c_ctx(tfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct sk_buff *skb = NULL;
+	struct chcr_wr *chcr_req;
+	struct cpl_rx_phys_dsgl *phys_cpl;
+	struct ulptx_sgl *ulptx;
+	struct chcr_skcipher_req_ctx *reqctx =
+		skcipher_request_ctx(wrparam->req);
+	unsigned int temp = 0, transhdr_len, dst_size;
+	int error;
+	int nents;
+	unsigned int kctx_len;
+	gfp_t flags = wrparam->req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
+			GFP_KERNEL : GFP_ATOMIC;
+	struct adapter *adap = padap(ctx->dev);
+	unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan;
+
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[rx_channel_id]);
+	nents = sg_nents_xlen(reqctx->dstsg,  wrparam->bytes, CHCR_DST_SG_SIZE,
+			      reqctx->dst_ofst);
+	dst_size = get_space_for_phys_dsgl(nents);
+	kctx_len = roundup(ablkctx->enckey_len, 16);
+	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+	nents = sg_nents_xlen(reqctx->srcsg, wrparam->bytes,
+				  CHCR_SRC_SG_SIZE, reqctx->src_ofst);
+	temp = reqctx->imm ? roundup(wrparam->bytes, 16) :
+				     (sgl_len(nents) * 8);
+	transhdr_len += temp;
+	transhdr_len = roundup(transhdr_len, 16);
+	skb = alloc_skb(SGE_MAX_WR_LEN, flags);
+	if (!skb) {
+		error = -ENOMEM;
+		goto err;
+	}
+	chcr_req = __skb_put_zero(skb, transhdr_len);
+	chcr_req->sec_cpl.op_ivinsrtofst =
+			FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 1);
+
+	chcr_req->sec_cpl.pldlen = htonl(IV + wrparam->bytes);
+	chcr_req->sec_cpl.aadstart_cipherstop_hi =
+			FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, IV + 1, 0);
+
+	chcr_req->sec_cpl.cipherstop_lo_authinsert =
+			FILL_SEC_CPL_AUTHINSERT(0, 0, 0, 0);
+	chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, 0,
+							 ablkctx->ciph_mode,
+							 0, 0, IV >> 1);
+	chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 0,
+							  0, 1, dst_size);
+
+	chcr_req->key_ctx.ctx_hdr = ablkctx->key_ctx_hdr;
+	if ((reqctx->op == CHCR_DECRYPT_OP) &&
+	    (!(get_cryptoalg_subtype(tfm) ==
+	       CRYPTO_ALG_SUB_TYPE_CTR)) &&
+	    (!(get_cryptoalg_subtype(tfm) ==
+	       CRYPTO_ALG_SUB_TYPE_CTR_RFC3686))) {
+		generate_copy_rrkey(ablkctx, &chcr_req->key_ctx);
+	} else {
+		if ((ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC) ||
+		    (ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CTR)) {
+			memcpy(chcr_req->key_ctx.key, ablkctx->key,
+			       ablkctx->enckey_len);
+		} else {
+			memcpy(chcr_req->key_ctx.key, ablkctx->key +
+			       (ablkctx->enckey_len >> 1),
+			       ablkctx->enckey_len >> 1);
+			memcpy(chcr_req->key_ctx.key +
+			       (ablkctx->enckey_len >> 1),
+			       ablkctx->key,
+			       ablkctx->enckey_len >> 1);
+		}
+	}
+	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
+	ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size);
+	chcr_add_cipher_src_ent(wrparam->req, ulptx, wrparam);
+	chcr_add_cipher_dst_ent(wrparam->req, phys_cpl, wrparam, wrparam->qid);
+
+	atomic_inc(&adap->chcr_stats.cipher_rqst);
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + kctx_len + IV
+		+ (reqctx->imm ? (wrparam->bytes) : 0);
+	create_wreq(c_ctx(tfm), chcr_req, &(wrparam->req->base), reqctx->imm, 0,
+		    transhdr_len, temp,
+			ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC);
+	reqctx->skb = skb;
+
+	if (reqctx->op && (ablkctx->ciph_mode ==
+			   CHCR_SCMD_CIPHER_MODE_AES_CBC))
+		sg_pcopy_to_buffer(wrparam->req->src,
+			sg_nents(wrparam->req->src), wrparam->req->iv, 16,
+			reqctx->processed + wrparam->bytes - AES_BLOCK_SIZE);
+
+	return skb;
+err:
+	return ERR_PTR(error);
+}
+
+static inline int chcr_keyctx_ck_size(unsigned int keylen)
+{
+	int ck_size = 0;
+
+	if (keylen == AES_KEYSIZE_128)
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
+	else if (keylen == AES_KEYSIZE_192)
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
+	else if (keylen == AES_KEYSIZE_256)
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
+	else
+		ck_size = 0;
+
+	return ck_size;
+}
+static int chcr_cipher_fallback_setkey(struct crypto_skcipher *cipher,
+				       const u8 *key,
+				       unsigned int keylen)
+{
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
+
+	crypto_skcipher_clear_flags(ablkctx->sw_cipher,
+				CRYPTO_TFM_REQ_MASK);
+	crypto_skcipher_set_flags(ablkctx->sw_cipher,
+				cipher->base.crt_flags & CRYPTO_TFM_REQ_MASK);
+	return crypto_skcipher_setkey(ablkctx->sw_cipher, key, keylen);
+}
+
+static int chcr_aes_cbc_setkey(struct crypto_skcipher *cipher,
+			       const u8 *key,
+			       unsigned int keylen)
+{
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
+	unsigned int ck_size, context_size;
+	u16 alignment = 0;
+	int err;
+
+	err = chcr_cipher_fallback_setkey(cipher, key, keylen);
+	if (err)
+		goto badkey_err;
+
+	ck_size = chcr_keyctx_ck_size(keylen);
+	alignment = ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192 ? 8 : 0;
+	memcpy(ablkctx->key, key, keylen);
+	ablkctx->enckey_len = keylen;
+	get_aes_decrypt_key(ablkctx->rrkey, ablkctx->key, keylen << 3);
+	context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD +
+			keylen + alignment) >> 4;
+
+	ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY,
+						0, 0, context_size);
+	ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CBC;
+	return 0;
+badkey_err:
+	ablkctx->enckey_len = 0;
+
+	return err;
+}
+
+static int chcr_aes_ctr_setkey(struct crypto_skcipher *cipher,
+				   const u8 *key,
+				   unsigned int keylen)
+{
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
+	unsigned int ck_size, context_size;
+	u16 alignment = 0;
+	int err;
+
+	err = chcr_cipher_fallback_setkey(cipher, key, keylen);
+	if (err)
+		goto badkey_err;
+	ck_size = chcr_keyctx_ck_size(keylen);
+	alignment = (ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192) ? 8 : 0;
+	memcpy(ablkctx->key, key, keylen);
+	ablkctx->enckey_len = keylen;
+	context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD +
+			keylen + alignment) >> 4;
+
+	ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY,
+						0, 0, context_size);
+	ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CTR;
+
+	return 0;
+badkey_err:
+	ablkctx->enckey_len = 0;
+
+	return err;
+}
+
+static int chcr_aes_rfc3686_setkey(struct crypto_skcipher *cipher,
+				   const u8 *key,
+				   unsigned int keylen)
+{
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
+	unsigned int ck_size, context_size;
+	u16 alignment = 0;
+	int err;
+
+	if (keylen < CTR_RFC3686_NONCE_SIZE)
+		return -EINVAL;
+	memcpy(ablkctx->nonce, key + (keylen - CTR_RFC3686_NONCE_SIZE),
+	       CTR_RFC3686_NONCE_SIZE);
+
+	keylen -= CTR_RFC3686_NONCE_SIZE;
+	err = chcr_cipher_fallback_setkey(cipher, key, keylen);
+	if (err)
+		goto badkey_err;
+
+	ck_size = chcr_keyctx_ck_size(keylen);
+	alignment = (ck_size == CHCR_KEYCTX_CIPHER_KEY_SIZE_192) ? 8 : 0;
+	memcpy(ablkctx->key, key, keylen);
+	ablkctx->enckey_len = keylen;
+	context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD +
+			keylen + alignment) >> 4;
+
+	ablkctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY,
+						0, 0, context_size);
+	ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CTR;
+
+	return 0;
+badkey_err:
+	ablkctx->enckey_len = 0;
+
+	return err;
+}
+static void ctr_add_iv(u8 *dstiv, u8 *srciv, u32 add)
+{
+	unsigned int size = AES_BLOCK_SIZE;
+	__be32 *b = (__be32 *)(dstiv + size);
+	u32 c, prev;
+
+	memcpy(dstiv, srciv, AES_BLOCK_SIZE);
+	for (; size >= 4; size -= 4) {
+		prev = be32_to_cpu(*--b);
+		c = prev + add;
+		*b = cpu_to_be32(c);
+		if (prev < c)
+			break;
+		add = 1;
+	}
+
+}
+
+static unsigned int adjust_ctr_overflow(u8 *iv, u32 bytes)
+{
+	__be32 *b = (__be32 *)(iv + AES_BLOCK_SIZE);
+	u64 c;
+	u32 temp = be32_to_cpu(*--b);
+
+	temp = ~temp;
+	c = (u64)temp +  1; // No of block can processed without overflow
+	if ((bytes / AES_BLOCK_SIZE) >= c)
+		bytes = c * AES_BLOCK_SIZE;
+	return bytes;
+}
+
+static int chcr_update_tweak(struct skcipher_request *req, u8 *iv,
+			     u32 isfinal)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	struct crypto_aes_ctx aes;
+	int ret, i;
+	u8 *key;
+	unsigned int keylen;
+	int round = reqctx->last_req_len / AES_BLOCK_SIZE;
+	int round8 = round / 8;
+
+	memcpy(iv, reqctx->iv, AES_BLOCK_SIZE);
+
+	keylen = ablkctx->enckey_len / 2;
+	key = ablkctx->key + keylen;
+	/* For a 192 bit key remove the padded zeroes which was
+	 * added in chcr_xts_setkey
+	 */
+	if (KEY_CONTEXT_CK_SIZE_G(ntohl(ablkctx->key_ctx_hdr))
+			== CHCR_KEYCTX_CIPHER_KEY_SIZE_192)
+		ret = aes_expandkey(&aes, key, keylen - 8);
+	else
+		ret = aes_expandkey(&aes, key, keylen);
+	if (ret)
+		return ret;
+	aes_encrypt(&aes, iv, iv);
+	for (i = 0; i < round8; i++)
+		gf128mul_x8_ble((le128 *)iv, (le128 *)iv);
+
+	for (i = 0; i < (round % 8); i++)
+		gf128mul_x_ble((le128 *)iv, (le128 *)iv);
+
+	if (!isfinal)
+		aes_decrypt(&aes, iv, iv);
+
+	memzero_explicit(&aes, sizeof(aes));
+	return 0;
+}
+
+static int chcr_update_cipher_iv(struct skcipher_request *req,
+				   struct cpl_fw6_pld *fw6_pld, u8 *iv)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	int subtype = get_cryptoalg_subtype(tfm);
+	int ret = 0;
+
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR)
+		ctr_add_iv(iv, req->iv, (reqctx->processed /
+			   AES_BLOCK_SIZE));
+	else if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_RFC3686)
+		*(__be32 *)(reqctx->iv + CTR_RFC3686_NONCE_SIZE +
+			CTR_RFC3686_IV_SIZE) = cpu_to_be32((reqctx->processed /
+						AES_BLOCK_SIZE) + 1);
+	else if (subtype == CRYPTO_ALG_SUB_TYPE_XTS)
+		ret = chcr_update_tweak(req, iv, 0);
+	else if (subtype == CRYPTO_ALG_SUB_TYPE_CBC) {
+		if (reqctx->op)
+			/*Updated before sending last WR*/
+			memcpy(iv, req->iv, AES_BLOCK_SIZE);
+		else
+			memcpy(iv, &fw6_pld->data[2], AES_BLOCK_SIZE);
+	}
+
+	return ret;
+
+}
+
+/* We need separate function for final iv because in rfc3686  Initial counter
+ * starts from 1 and buffer size of iv is 8 byte only which remains constant
+ * for subsequent update requests
+ */
+
+static int chcr_final_cipher_iv(struct skcipher_request *req,
+				   struct cpl_fw6_pld *fw6_pld, u8 *iv)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	int subtype = get_cryptoalg_subtype(tfm);
+	int ret = 0;
+
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR)
+		ctr_add_iv(iv, req->iv, DIV_ROUND_UP(reqctx->processed,
+						       AES_BLOCK_SIZE));
+	else if (subtype == CRYPTO_ALG_SUB_TYPE_XTS) {
+		if (!reqctx->partial_req)
+			memcpy(iv, reqctx->iv, AES_BLOCK_SIZE);
+		else
+			ret = chcr_update_tweak(req, iv, 1);
+	}
+	else if (subtype == CRYPTO_ALG_SUB_TYPE_CBC) {
+		/*Already updated for Decrypt*/
+		if (!reqctx->op)
+			memcpy(iv, &fw6_pld->data[2], AES_BLOCK_SIZE);
+
+	}
+	return ret;
+
+}
+
+static int chcr_handle_cipher_resp(struct skcipher_request *req,
+				   unsigned char *input, int err)
+{
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct cpl_fw6_pld *fw6_pld = (struct cpl_fw6_pld *)input;
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
+	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
+	struct chcr_dev *dev = c_ctx(tfm)->dev;
+	struct chcr_context *ctx = c_ctx(tfm);
+	struct adapter *adap = padap(ctx->dev);
+	struct cipher_wr_param wrparam;
+	struct sk_buff *skb;
+	int bytes;
+
+	if (err)
+		goto unmap;
+	if (req->cryptlen == reqctx->processed) {
+		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				      req);
+		err = chcr_final_cipher_iv(req, fw6_pld, req->iv);
+		goto complete;
+	}
+
+	if (!reqctx->imm) {
+		bytes = chcr_sg_ent_in_wr(reqctx->srcsg, reqctx->dstsg, 0,
+					  CIP_SPACE_LEFT(ablkctx->enckey_len),
+					  reqctx->src_ofst, reqctx->dst_ofst);
+		if ((bytes + reqctx->processed) >= req->cryptlen)
+			bytes  = req->cryptlen - reqctx->processed;
+		else
+			bytes = rounddown(bytes, 16);
+	} else {
+		/*CTR mode counter overfloa*/
+		bytes  = req->cryptlen - reqctx->processed;
+	}
+	err = chcr_update_cipher_iv(req, fw6_pld, reqctx->iv);
+	if (err)
+		goto unmap;
+
+	if (unlikely(bytes == 0)) {
+		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				      req);
+		memcpy(req->iv, reqctx->init_iv, IV);
+		atomic_inc(&adap->chcr_stats.fallback);
+		err = chcr_cipher_fallback(ablkctx->sw_cipher, req, req->iv,
+					   reqctx->op);
+		goto complete;
+	}
+
+	if (get_cryptoalg_subtype(tfm) ==
+	    CRYPTO_ALG_SUB_TYPE_CTR)
+		bytes = adjust_ctr_overflow(reqctx->iv, bytes);
+	wrparam.qid = u_ctx->lldi.rxq_ids[reqctx->rxqidx];
+	wrparam.req = req;
+	wrparam.bytes = bytes;
+	skb = create_cipher_wr(&wrparam);
+	if (IS_ERR(skb)) {
+		pr_err("%s : Failed to form WR. No memory\n", __func__);
+		err = PTR_ERR(skb);
+		goto unmap;
+	}
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx);
+	chcr_send_wr(skb);
+	reqctx->last_req_len = bytes;
+	reqctx->processed += bytes;
+	if (get_cryptoalg_subtype(tfm) ==
+		CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags ==
+			CRYPTO_TFM_REQ_MAY_SLEEP ) {
+		complete(&ctx->cbc_aes_aio_done);
+	}
+	return 0;
+unmap:
+	chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
+complete:
+	if (get_cryptoalg_subtype(tfm) ==
+		CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags ==
+			CRYPTO_TFM_REQ_MAY_SLEEP ) {
+		complete(&ctx->cbc_aes_aio_done);
+	}
+	chcr_dec_wrcount(dev);
+	skcipher_request_complete(req, err);
+	return err;
+}
+
+static int process_cipher(struct skcipher_request *req,
+				  unsigned short qid,
+				  struct sk_buff **skb,
+				  unsigned short op_type)
+{
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	unsigned int ivsize = crypto_skcipher_ivsize(tfm);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
+	struct adapter *adap = padap(c_ctx(tfm)->dev);
+	struct	cipher_wr_param wrparam;
+	int bytes, err = -EINVAL;
+	int subtype;
+
+	reqctx->processed = 0;
+	reqctx->partial_req = 0;
+	if (!req->iv)
+		goto error;
+	subtype = get_cryptoalg_subtype(tfm);
+	if ((ablkctx->enckey_len == 0) || (ivsize > AES_BLOCK_SIZE) ||
+	    (req->cryptlen == 0) ||
+	    (req->cryptlen % crypto_skcipher_blocksize(tfm))) {
+		if (req->cryptlen == 0 && subtype != CRYPTO_ALG_SUB_TYPE_XTS)
+			goto fallback;
+		else if (req->cryptlen % crypto_skcipher_blocksize(tfm) &&
+			 subtype == CRYPTO_ALG_SUB_TYPE_XTS)
+			goto fallback;
+		pr_err("AES: Invalid value of Key Len %d nbytes %d IV Len %d\n",
+		       ablkctx->enckey_len, req->cryptlen, ivsize);
+		goto error;
+	}
+
+	err = chcr_cipher_dma_map(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
+	if (err)
+		goto error;
+	if (req->cryptlen < (SGE_MAX_WR_LEN - (sizeof(struct chcr_wr) +
+					    AES_MIN_KEY_SIZE +
+					    sizeof(struct cpl_rx_phys_dsgl) +
+					/*Min dsgl size*/
+					    32))) {
+		/* Can be sent as Imm*/
+		unsigned int dnents = 0, transhdr_len, phys_dsgl, kctx_len;
+
+		dnents = sg_nents_xlen(req->dst, req->cryptlen,
+				       CHCR_DST_SG_SIZE, 0);
+		phys_dsgl = get_space_for_phys_dsgl(dnents);
+		kctx_len = roundup(ablkctx->enckey_len, 16);
+		transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, phys_dsgl);
+		reqctx->imm = (transhdr_len + IV + req->cryptlen) <=
+			SGE_MAX_WR_LEN;
+		bytes = IV + req->cryptlen;
+
+	} else {
+		reqctx->imm = 0;
+	}
+
+	if (!reqctx->imm) {
+		bytes = chcr_sg_ent_in_wr(req->src, req->dst, 0,
+					  CIP_SPACE_LEFT(ablkctx->enckey_len),
+					  0, 0);
+		if ((bytes + reqctx->processed) >= req->cryptlen)
+			bytes  = req->cryptlen - reqctx->processed;
+		else
+			bytes = rounddown(bytes, 16);
+	} else {
+		bytes = req->cryptlen;
+	}
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR) {
+		bytes = adjust_ctr_overflow(req->iv, bytes);
+	}
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_RFC3686) {
+		memcpy(reqctx->iv, ablkctx->nonce, CTR_RFC3686_NONCE_SIZE);
+		memcpy(reqctx->iv + CTR_RFC3686_NONCE_SIZE, req->iv,
+				CTR_RFC3686_IV_SIZE);
+
+		/* initialize counter portion of counter block */
+		*(__be32 *)(reqctx->iv + CTR_RFC3686_NONCE_SIZE +
+			CTR_RFC3686_IV_SIZE) = cpu_to_be32(1);
+		memcpy(reqctx->init_iv, reqctx->iv, IV);
+
+	} else {
+
+		memcpy(reqctx->iv, req->iv, IV);
+		memcpy(reqctx->init_iv, req->iv, IV);
+	}
+	if (unlikely(bytes == 0)) {
+		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				      req);
+fallback:       atomic_inc(&adap->chcr_stats.fallback);
+		err = chcr_cipher_fallback(ablkctx->sw_cipher, req,
+					   subtype ==
+					   CRYPTO_ALG_SUB_TYPE_CTR_RFC3686 ?
+					   reqctx->iv : req->iv,
+					   op_type);
+		goto error;
+	}
+	reqctx->op = op_type;
+	reqctx->srcsg = req->src;
+	reqctx->dstsg = req->dst;
+	reqctx->src_ofst = 0;
+	reqctx->dst_ofst = 0;
+	wrparam.qid = qid;
+	wrparam.req = req;
+	wrparam.bytes = bytes;
+	*skb = create_cipher_wr(&wrparam);
+	if (IS_ERR(*skb)) {
+		err = PTR_ERR(*skb);
+		goto unmap;
+	}
+	reqctx->processed = bytes;
+	reqctx->last_req_len = bytes;
+	reqctx->partial_req = !!(req->cryptlen - reqctx->processed);
+
+	return 0;
+unmap:
+	chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
+error:
+	return err;
+}
+
+static int chcr_aes_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	struct chcr_dev *dev = c_ctx(tfm)->dev;
+	struct sk_buff *skb = NULL;
+	int err;
+	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
+	struct chcr_context *ctx = c_ctx(tfm);
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	reqctx->txqidx = cpu % ctx->ntxq;
+	reqctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	err = chcr_inc_wrcount(dev);
+	if (err)
+		return -ENXIO;
+	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
+						reqctx->txqidx) &&
+		(!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) {
+			err = -ENOSPC;
+			goto error;
+	}
+
+	err = process_cipher(req, u_ctx->lldi.rxq_ids[reqctx->rxqidx],
+			     &skb, CHCR_ENCRYPT_OP);
+	if (err || !skb)
+		return  err;
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx);
+	chcr_send_wr(skb);
+	if (get_cryptoalg_subtype(tfm) ==
+		CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags ==
+			CRYPTO_TFM_REQ_MAY_SLEEP ) {
+			reqctx->partial_req = 1;
+			wait_for_completion(&ctx->cbc_aes_aio_done);
+        }
+	return -EINPROGRESS;
+error:
+	chcr_dec_wrcount(dev);
+	return err;
+}
+
+static int chcr_aes_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
+	struct chcr_dev *dev = c_ctx(tfm)->dev;
+	struct sk_buff *skb = NULL;
+	int err;
+	struct chcr_context *ctx = c_ctx(tfm);
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	reqctx->txqidx = cpu % ctx->ntxq;
+	reqctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	err = chcr_inc_wrcount(dev);
+	if (err)
+		return -ENXIO;
+
+	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
+						reqctx->txqidx) &&
+		(!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))))
+			return -ENOSPC;
+	err = process_cipher(req, u_ctx->lldi.rxq_ids[reqctx->rxqidx],
+			     &skb, CHCR_DECRYPT_OP);
+	if (err || !skb)
+		return err;
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx);
+	chcr_send_wr(skb);
+	return -EINPROGRESS;
+}
+static int chcr_device_init(struct chcr_context *ctx)
+{
+	struct uld_ctx *u_ctx = NULL;
+	int txq_perchan, ntxq;
+	int err = 0, rxq_perchan;
+
+	if (!ctx->dev) {
+		u_ctx = assign_chcr_device();
+		if (!u_ctx) {
+			err = -ENXIO;
+			pr_err("chcr device assignment fails\n");
+			goto out;
+		}
+		ctx->dev = &u_ctx->dev;
+		ntxq = u_ctx->lldi.ntxq;
+		rxq_perchan = u_ctx->lldi.nrxq / u_ctx->lldi.nchan;
+		txq_perchan = ntxq / u_ctx->lldi.nchan;
+		ctx->ntxq = ntxq;
+		ctx->nrxq = u_ctx->lldi.nrxq;
+		ctx->rxq_perchan = rxq_perchan;
+		ctx->txq_perchan = txq_perchan;
+	}
+out:
+	return err;
+}
+
+static int chcr_init_tfm(struct crypto_skcipher *tfm)
+{
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct chcr_context *ctx = crypto_skcipher_ctx(tfm);
+	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+
+	ablkctx->sw_cipher = crypto_alloc_skcipher(alg->base.cra_name, 0,
+				CRYPTO_ALG_NEED_FALLBACK);
+	if (IS_ERR(ablkctx->sw_cipher)) {
+		pr_err("failed to allocate fallback for %s\n", alg->base.cra_name);
+		return PTR_ERR(ablkctx->sw_cipher);
+	}
+	init_completion(&ctx->cbc_aes_aio_done);
+	crypto_skcipher_set_reqsize(tfm, sizeof(struct chcr_skcipher_req_ctx) +
+					 crypto_skcipher_reqsize(ablkctx->sw_cipher));
+
+	return chcr_device_init(ctx);
+}
+
+static int chcr_rfc3686_init(struct crypto_skcipher *tfm)
+{
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct chcr_context *ctx = crypto_skcipher_ctx(tfm);
+	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+
+	/*RFC3686 initialises IV counter value to 1, rfc3686(ctr(aes))
+	 * cannot be used as fallback in chcr_handle_cipher_response
+	 */
+	ablkctx->sw_cipher = crypto_alloc_skcipher("ctr(aes)", 0,
+				CRYPTO_ALG_NEED_FALLBACK);
+	if (IS_ERR(ablkctx->sw_cipher)) {
+		pr_err("failed to allocate fallback for %s\n", alg->base.cra_name);
+		return PTR_ERR(ablkctx->sw_cipher);
+	}
+	crypto_skcipher_set_reqsize(tfm, sizeof(struct chcr_skcipher_req_ctx) +
+				    crypto_skcipher_reqsize(ablkctx->sw_cipher));
+	return chcr_device_init(ctx);
+}
+
+
+static void chcr_exit_tfm(struct crypto_skcipher *tfm)
+{
+	struct chcr_context *ctx = crypto_skcipher_ctx(tfm);
+	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+
+	crypto_free_skcipher(ablkctx->sw_cipher);
+}
+
+static int get_alg_config(struct algo_param *params,
+			  unsigned int auth_size)
+{
+	switch (auth_size) {
+	case SHA1_DIGEST_SIZE:
+		params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_160;
+		params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA1;
+		params->result_size = SHA1_DIGEST_SIZE;
+		break;
+	case SHA224_DIGEST_SIZE:
+		params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256;
+		params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA224;
+		params->result_size = SHA256_DIGEST_SIZE;
+		break;
+	case SHA256_DIGEST_SIZE:
+		params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256;
+		params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA256;
+		params->result_size = SHA256_DIGEST_SIZE;
+		break;
+	case SHA384_DIGEST_SIZE:
+		params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_512;
+		params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA512_384;
+		params->result_size = SHA512_DIGEST_SIZE;
+		break;
+	case SHA512_DIGEST_SIZE:
+		params->mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_512;
+		params->auth_mode = CHCR_SCMD_AUTH_MODE_SHA512_512;
+		params->result_size = SHA512_DIGEST_SIZE;
+		break;
+	default:
+		pr_err("ERROR, unsupported digest size\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static inline void chcr_free_shash(struct crypto_shash *base_hash)
+{
+		crypto_free_shash(base_hash);
+}
+
+/**
+ *	create_hash_wr - Create hash work request
+ *	@req: Cipher req base
+ *	@param: Container for create_hash_wr()'s parameters
+ */
+static struct sk_buff *create_hash_wr(struct ahash_request *req,
+				      struct hash_wr_param *param)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct chcr_context *ctx = h_ctx(tfm);
+	struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
+	struct sk_buff *skb = NULL;
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct chcr_wr *chcr_req;
+	struct ulptx_sgl *ulptx;
+	unsigned int nents = 0, transhdr_len;
+	unsigned int temp = 0;
+	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
+		GFP_ATOMIC;
+	struct adapter *adap = padap(h_ctx(tfm)->dev);
+	int error = 0;
+	unsigned int rx_channel_id = req_ctx->rxqidx / ctx->rxq_perchan;
+
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[rx_channel_id]);
+	transhdr_len = HASH_TRANSHDR_SIZE(param->kctx_len);
+	req_ctx->hctx_wr.imm = (transhdr_len + param->bfr_len +
+				param->sg_len) <= SGE_MAX_WR_LEN;
+	nents = sg_nents_xlen(req_ctx->hctx_wr.srcsg, param->sg_len,
+		      CHCR_SRC_SG_SIZE, req_ctx->hctx_wr.src_ofst);
+	nents += param->bfr_len ? 1 : 0;
+	transhdr_len += req_ctx->hctx_wr.imm ? roundup(param->bfr_len +
+				param->sg_len, 16) : (sgl_len(nents) * 8);
+	transhdr_len = roundup(transhdr_len, 16);
+
+	skb = alloc_skb(transhdr_len, flags);
+	if (!skb)
+		return ERR_PTR(-ENOMEM);
+	chcr_req = __skb_put_zero(skb, transhdr_len);
+
+	chcr_req->sec_cpl.op_ivinsrtofst =
+		FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 0);
+
+	chcr_req->sec_cpl.pldlen = htonl(param->bfr_len + param->sg_len);
+
+	chcr_req->sec_cpl.aadstart_cipherstop_hi =
+		FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, 0, 0);
+	chcr_req->sec_cpl.cipherstop_lo_authinsert =
+		FILL_SEC_CPL_AUTHINSERT(0, 1, 0, 0);
+	chcr_req->sec_cpl.seqno_numivs =
+		FILL_SEC_CPL_SCMD0_SEQNO(0, 0, 0, param->alg_prm.auth_mode,
+					 param->opad_needed, 0);
+
+	chcr_req->sec_cpl.ivgen_hdrlen =
+		FILL_SEC_CPL_IVGEN_HDRLEN(param->last, param->more, 0, 1, 0, 0);
+
+	memcpy(chcr_req->key_ctx.key, req_ctx->partial_hash,
+	       param->alg_prm.result_size);
+
+	if (param->opad_needed)
+		memcpy(chcr_req->key_ctx.key +
+		       ((param->alg_prm.result_size <= 32) ? 32 :
+			CHCR_HASH_MAX_DIGEST_SIZE),
+		       hmacctx->opad, param->alg_prm.result_size);
+
+	chcr_req->key_ctx.ctx_hdr = FILL_KEY_CTX_HDR(CHCR_KEYCTX_NO_KEY,
+					    param->alg_prm.mk_size, 0,
+					    param->opad_needed,
+					    ((param->kctx_len +
+					     sizeof(chcr_req->key_ctx)) >> 4));
+	chcr_req->sec_cpl.scmd1 = cpu_to_be64((u64)param->scmd1);
+	ulptx = (struct ulptx_sgl *)((u8 *)(chcr_req + 1) + param->kctx_len +
+				     DUMMY_BYTES);
+	if (param->bfr_len != 0) {
+		req_ctx->hctx_wr.dma_addr =
+			dma_map_single(&u_ctx->lldi.pdev->dev, req_ctx->reqbfr,
+				       param->bfr_len, DMA_TO_DEVICE);
+		if (dma_mapping_error(&u_ctx->lldi.pdev->dev,
+				       req_ctx->hctx_wr. dma_addr)) {
+			error = -ENOMEM;
+			goto err;
+		}
+		req_ctx->hctx_wr.dma_len = param->bfr_len;
+	} else {
+		req_ctx->hctx_wr.dma_addr = 0;
+	}
+	chcr_add_hash_src_ent(req, ulptx, param);
+	/* Request upto max wr size */
+	temp = param->kctx_len + DUMMY_BYTES + (req_ctx->hctx_wr.imm ?
+				(param->sg_len + param->bfr_len) : 0);
+	atomic_inc(&adap->chcr_stats.digest_rqst);
+	create_wreq(h_ctx(tfm), chcr_req, &req->base, req_ctx->hctx_wr.imm,
+		    param->hash_size, transhdr_len,
+		    temp,  0);
+	req_ctx->hctx_wr.skb = skb;
+	return skb;
+err:
+	kfree_skb(skb);
+	return  ERR_PTR(error);
+}
+
+static int chcr_ahash_update(struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
+	struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm));
+	struct chcr_context *ctx = h_ctx(rtfm);
+	struct chcr_dev *dev = h_ctx(rtfm)->dev;
+	struct sk_buff *skb;
+	u8 remainder = 0, bs;
+	unsigned int nbytes = req->nbytes;
+	struct hash_wr_param params;
+	int error;
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	req_ctx->txqidx = cpu % ctx->ntxq;
+	req_ctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
+
+	if (nbytes + req_ctx->reqlen >= bs) {
+		remainder = (nbytes + req_ctx->reqlen) % bs;
+		nbytes = nbytes + req_ctx->reqlen - remainder;
+	} else {
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src), req_ctx->reqbfr
+				   + req_ctx->reqlen, nbytes, 0);
+		req_ctx->reqlen += nbytes;
+		return 0;
+	}
+	error = chcr_inc_wrcount(dev);
+	if (error)
+		return -ENXIO;
+	/* Detach state for CHCR means lldi or padap is freed. Increasing
+	 * inflight count for dev guarantees that lldi and padap is valid
+	 */
+	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
+						req_ctx->txqidx) &&
+		(!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) {
+			error = -ENOSPC;
+			goto err;
+	}
+
+	chcr_init_hctx_per_wr(req_ctx);
+	error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
+	if (error) {
+		error = -ENOMEM;
+		goto err;
+	}
+	get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
+	params.kctx_len = roundup(params.alg_prm.result_size, 16);
+	params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen,
+				     HASH_SPACE_LEFT(params.kctx_len), 0);
+	if (params.sg_len > req->nbytes)
+		params.sg_len = req->nbytes;
+	params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs) -
+			req_ctx->reqlen;
+	params.opad_needed = 0;
+	params.more = 1;
+	params.last = 0;
+	params.bfr_len = req_ctx->reqlen;
+	params.scmd1 = 0;
+	req_ctx->hctx_wr.srcsg = req->src;
+
+	params.hash_size = params.alg_prm.result_size;
+	req_ctx->data_len += params.sg_len + params.bfr_len;
+	skb = create_hash_wr(req, &params);
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto unmap;
+	}
+
+	req_ctx->hctx_wr.processed += params.sg_len;
+	if (remainder) {
+		/* Swap buffers */
+		swap(req_ctx->reqbfr, req_ctx->skbfr);
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
+				   req_ctx->reqbfr, remainder, req->nbytes -
+				   remainder);
+	}
+	req_ctx->reqlen = remainder;
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx);
+	chcr_send_wr(skb);
+	return -EINPROGRESS;
+unmap:
+	chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+err:
+	chcr_dec_wrcount(dev);
+	return error;
+}
+
+static void create_last_hash_block(char *bfr_ptr, unsigned int bs, u64 scmd1)
+{
+	memset(bfr_ptr, 0, bs);
+	*bfr_ptr = 0x80;
+	if (bs == 64)
+		*(__be64 *)(bfr_ptr + 56) = cpu_to_be64(scmd1  << 3);
+	else
+		*(__be64 *)(bfr_ptr + 120) =  cpu_to_be64(scmd1  << 3);
+}
+
+static int chcr_ahash_final(struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
+	struct chcr_dev *dev = h_ctx(rtfm)->dev;
+	struct hash_wr_param params;
+	struct sk_buff *skb;
+	struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm));
+	struct chcr_context *ctx = h_ctx(rtfm);
+	u8 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
+	int error;
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	req_ctx->txqidx = cpu % ctx->ntxq;
+	req_ctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	error = chcr_inc_wrcount(dev);
+	if (error)
+		return -ENXIO;
+
+	chcr_init_hctx_per_wr(req_ctx);
+	if (is_hmac(crypto_ahash_tfm(rtfm)))
+		params.opad_needed = 1;
+	else
+		params.opad_needed = 0;
+	params.sg_len = 0;
+	req_ctx->hctx_wr.isfinal = 1;
+	get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
+	params.kctx_len = roundup(params.alg_prm.result_size, 16);
+	if (is_hmac(crypto_ahash_tfm(rtfm))) {
+		params.opad_needed = 1;
+		params.kctx_len *= 2;
+	} else {
+		params.opad_needed = 0;
+	}
+
+	req_ctx->hctx_wr.result = 1;
+	params.bfr_len = req_ctx->reqlen;
+	req_ctx->data_len += params.bfr_len + params.sg_len;
+	req_ctx->hctx_wr.srcsg = req->src;
+	if (req_ctx->reqlen == 0) {
+		create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len);
+		params.last = 0;
+		params.more = 1;
+		params.scmd1 = 0;
+		params.bfr_len = bs;
+
+	} else {
+		params.scmd1 = req_ctx->data_len;
+		params.last = 1;
+		params.more = 0;
+	}
+	params.hash_size = crypto_ahash_digestsize(rtfm);
+	skb = create_hash_wr(req, &params);
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto err;
+	}
+	req_ctx->reqlen = 0;
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx);
+	chcr_send_wr(skb);
+	return -EINPROGRESS;
+err:
+	chcr_dec_wrcount(dev);
+	return error;
+}
+
+static int chcr_ahash_finup(struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
+	struct chcr_dev *dev = h_ctx(rtfm)->dev;
+	struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm));
+	struct chcr_context *ctx = h_ctx(rtfm);
+	struct sk_buff *skb;
+	struct hash_wr_param params;
+	u8  bs;
+	int error;
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	req_ctx->txqidx = cpu % ctx->ntxq;
+	req_ctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
+	error = chcr_inc_wrcount(dev);
+	if (error)
+		return -ENXIO;
+
+	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
+						req_ctx->txqidx) &&
+		(!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) {
+			error = -ENOSPC;
+			goto err;
+	}
+	chcr_init_hctx_per_wr(req_ctx);
+	error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
+	if (error) {
+		error = -ENOMEM;
+		goto err;
+	}
+
+	get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
+	params.kctx_len = roundup(params.alg_prm.result_size, 16);
+	if (is_hmac(crypto_ahash_tfm(rtfm))) {
+		params.kctx_len *= 2;
+		params.opad_needed = 1;
+	} else {
+		params.opad_needed = 0;
+	}
+
+	params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen,
+				    HASH_SPACE_LEFT(params.kctx_len), 0);
+	if (params.sg_len < req->nbytes) {
+		if (is_hmac(crypto_ahash_tfm(rtfm))) {
+			params.kctx_len /= 2;
+			params.opad_needed = 0;
+		}
+		params.last = 0;
+		params.more = 1;
+		params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs)
+					- req_ctx->reqlen;
+		params.hash_size = params.alg_prm.result_size;
+		params.scmd1 = 0;
+	} else {
+		params.last = 1;
+		params.more = 0;
+		params.sg_len = req->nbytes;
+		params.hash_size = crypto_ahash_digestsize(rtfm);
+		params.scmd1 = req_ctx->data_len + req_ctx->reqlen +
+				params.sg_len;
+	}
+	params.bfr_len = req_ctx->reqlen;
+	req_ctx->data_len += params.bfr_len + params.sg_len;
+	req_ctx->hctx_wr.result = 1;
+	req_ctx->hctx_wr.srcsg = req->src;
+	if ((req_ctx->reqlen + req->nbytes) == 0) {
+		create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len);
+		params.last = 0;
+		params.more = 1;
+		params.scmd1 = 0;
+		params.bfr_len = bs;
+	}
+	skb = create_hash_wr(req, &params);
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto unmap;
+	}
+	req_ctx->reqlen = 0;
+	req_ctx->hctx_wr.processed += params.sg_len;
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx);
+	chcr_send_wr(skb);
+	return -EINPROGRESS;
+unmap:
+	chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+err:
+	chcr_dec_wrcount(dev);
+	return error;
+}
+
+static int chcr_ahash_digest(struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
+	struct chcr_dev *dev = h_ctx(rtfm)->dev;
+	struct uld_ctx *u_ctx = ULD_CTX(h_ctx(rtfm));
+	struct chcr_context *ctx = h_ctx(rtfm);
+	struct sk_buff *skb;
+	struct hash_wr_param params;
+	u8  bs;
+	int error;
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	req_ctx->txqidx = cpu % ctx->ntxq;
+	req_ctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	rtfm->init(req);
+	bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
+	error = chcr_inc_wrcount(dev);
+	if (error)
+		return -ENXIO;
+
+	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
+						req_ctx->txqidx) &&
+		(!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))) {
+			error = -ENOSPC;
+			goto err;
+	}
+
+	chcr_init_hctx_per_wr(req_ctx);
+	error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
+	if (error) {
+		error = -ENOMEM;
+		goto err;
+	}
+
+	get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
+	params.kctx_len = roundup(params.alg_prm.result_size, 16);
+	if (is_hmac(crypto_ahash_tfm(rtfm))) {
+		params.kctx_len *= 2;
+		params.opad_needed = 1;
+	} else {
+		params.opad_needed = 0;
+	}
+	params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen,
+				HASH_SPACE_LEFT(params.kctx_len), 0);
+	if (params.sg_len < req->nbytes) {
+		if (is_hmac(crypto_ahash_tfm(rtfm))) {
+			params.kctx_len /= 2;
+			params.opad_needed = 0;
+		}
+		params.last = 0;
+		params.more = 1;
+		params.scmd1 = 0;
+		params.sg_len = rounddown(params.sg_len, bs);
+		params.hash_size = params.alg_prm.result_size;
+	} else {
+		params.sg_len = req->nbytes;
+		params.hash_size = crypto_ahash_digestsize(rtfm);
+		params.last = 1;
+		params.more = 0;
+		params.scmd1 = req->nbytes + req_ctx->data_len;
+
+	}
+	params.bfr_len = 0;
+	req_ctx->hctx_wr.result = 1;
+	req_ctx->hctx_wr.srcsg = req->src;
+	req_ctx->data_len += params.bfr_len + params.sg_len;
+
+	if (req->nbytes == 0) {
+		create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len);
+		params.more = 1;
+		params.bfr_len = bs;
+	}
+
+	skb = create_hash_wr(req, &params);
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto unmap;
+	}
+	req_ctx->hctx_wr.processed += params.sg_len;
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, req_ctx->txqidx);
+	chcr_send_wr(skb);
+	return -EINPROGRESS;
+unmap:
+	chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+err:
+	chcr_dec_wrcount(dev);
+	return error;
+}
+
+static int chcr_ahash_continue(struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
+	struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr;
+	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
+	struct chcr_context *ctx = h_ctx(rtfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct sk_buff *skb;
+	struct hash_wr_param params;
+	u8  bs;
+	int error;
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	reqctx->txqidx = cpu % ctx->ntxq;
+	reqctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
+	get_alg_config(&params.alg_prm, crypto_ahash_digestsize(rtfm));
+	params.kctx_len = roundup(params.alg_prm.result_size, 16);
+	if (is_hmac(crypto_ahash_tfm(rtfm))) {
+		params.kctx_len *= 2;
+		params.opad_needed = 1;
+	} else {
+		params.opad_needed = 0;
+	}
+	params.sg_len = chcr_hash_ent_in_wr(hctx_wr->srcsg, 0,
+					    HASH_SPACE_LEFT(params.kctx_len),
+					    hctx_wr->src_ofst);
+	if ((params.sg_len + hctx_wr->processed) > req->nbytes)
+		params.sg_len = req->nbytes - hctx_wr->processed;
+	if (!hctx_wr->result ||
+	    ((params.sg_len + hctx_wr->processed) < req->nbytes)) {
+		if (is_hmac(crypto_ahash_tfm(rtfm))) {
+			params.kctx_len /= 2;
+			params.opad_needed = 0;
+		}
+		params.last = 0;
+		params.more = 1;
+		params.sg_len = rounddown(params.sg_len, bs);
+		params.hash_size = params.alg_prm.result_size;
+		params.scmd1 = 0;
+	} else {
+		params.last = 1;
+		params.more = 0;
+		params.hash_size = crypto_ahash_digestsize(rtfm);
+		params.scmd1 = reqctx->data_len + params.sg_len;
+	}
+	params.bfr_len = 0;
+	reqctx->data_len += params.sg_len;
+	skb = create_hash_wr(req, &params);
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto err;
+	}
+	hctx_wr->processed += params.sg_len;
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx);
+	chcr_send_wr(skb);
+	return 0;
+err:
+	return error;
+}
+
+static inline void chcr_handle_ahash_resp(struct ahash_request *req,
+					  unsigned char *input,
+					  int err)
+{
+	struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
+	struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr;
+	int digestsize, updated_digestsize;
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm));
+	struct chcr_dev *dev = h_ctx(tfm)->dev;
+
+	if (input == NULL)
+		goto out;
+	digestsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(req));
+	updated_digestsize = digestsize;
+	if (digestsize == SHA224_DIGEST_SIZE)
+		updated_digestsize = SHA256_DIGEST_SIZE;
+	else if (digestsize == SHA384_DIGEST_SIZE)
+		updated_digestsize = SHA512_DIGEST_SIZE;
+
+	if (hctx_wr->dma_addr) {
+		dma_unmap_single(&u_ctx->lldi.pdev->dev, hctx_wr->dma_addr,
+				 hctx_wr->dma_len, DMA_TO_DEVICE);
+		hctx_wr->dma_addr = 0;
+	}
+	if (hctx_wr->isfinal || ((hctx_wr->processed + reqctx->reqlen) ==
+				 req->nbytes)) {
+		if (hctx_wr->result == 1) {
+			hctx_wr->result = 0;
+			memcpy(req->result, input + sizeof(struct cpl_fw6_pld),
+			       digestsize);
+		} else {
+			memcpy(reqctx->partial_hash,
+			       input + sizeof(struct cpl_fw6_pld),
+			       updated_digestsize);
+
+		}
+		goto unmap;
+	}
+	memcpy(reqctx->partial_hash, input + sizeof(struct cpl_fw6_pld),
+	       updated_digestsize);
+
+	err = chcr_ahash_continue(req);
+	if (err)
+		goto unmap;
+	return;
+unmap:
+	if (hctx_wr->is_sg_map)
+		chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+
+
+out:
+	chcr_dec_wrcount(dev);
+	ahash_request_complete(req, err);
+}
+
+/*
+ *	chcr_handle_resp - Unmap the DMA buffers associated with the request
+ *	@req: crypto request
+ */
+int chcr_handle_resp(struct crypto_async_request *req, unsigned char *input,
+			 int err)
+{
+	struct crypto_tfm *tfm = req->tfm;
+	struct chcr_context *ctx = crypto_tfm_ctx(tfm);
+	struct adapter *adap = padap(ctx->dev);
+
+	switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
+	case CRYPTO_ALG_TYPE_AEAD:
+		err = chcr_handle_aead_resp(aead_request_cast(req), input, err);
+		break;
+
+	case CRYPTO_ALG_TYPE_SKCIPHER:
+		 chcr_handle_cipher_resp(skcipher_request_cast(req),
+					       input, err);
+		break;
+	case CRYPTO_ALG_TYPE_AHASH:
+		chcr_handle_ahash_resp(ahash_request_cast(req), input, err);
+		}
+	atomic_inc(&adap->chcr_stats.complete);
+	return err;
+}
+static int chcr_ahash_export(struct ahash_request *areq, void *out)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct chcr_ahash_req_ctx *state = out;
+
+	state->reqlen = req_ctx->reqlen;
+	state->data_len = req_ctx->data_len;
+	memcpy(state->bfr1, req_ctx->reqbfr, req_ctx->reqlen);
+	memcpy(state->partial_hash, req_ctx->partial_hash,
+	       CHCR_HASH_MAX_DIGEST_SIZE);
+	chcr_init_hctx_per_wr(state);
+	return 0;
+}
+
+static int chcr_ahash_import(struct ahash_request *areq, const void *in)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct chcr_ahash_req_ctx *state = (struct chcr_ahash_req_ctx *)in;
+
+	req_ctx->reqlen = state->reqlen;
+	req_ctx->data_len = state->data_len;
+	req_ctx->reqbfr = req_ctx->bfr1;
+	req_ctx->skbfr = req_ctx->bfr2;
+	memcpy(req_ctx->bfr1, state->bfr1, CHCR_HASH_MAX_BLOCK_SIZE_128);
+	memcpy(req_ctx->partial_hash, state->partial_hash,
+	       CHCR_HASH_MAX_DIGEST_SIZE);
+	chcr_init_hctx_per_wr(req_ctx);
+	return 0;
+}
+
+static int chcr_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
+			     unsigned int keylen)
+{
+	struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(tfm));
+	unsigned int digestsize = crypto_ahash_digestsize(tfm);
+	unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+	unsigned int i, err = 0, updated_digestsize;
+
+	SHASH_DESC_ON_STACK(shash, hmacctx->base_hash);
+
+	/* use the key to calculate the ipad and opad. ipad will sent with the
+	 * first request's data. opad will be sent with the final hash result
+	 * ipad in hmacctx->ipad and opad in hmacctx->opad location
+	 */
+	shash->tfm = hmacctx->base_hash;
+	if (keylen > bs) {
+		err = crypto_shash_digest(shash, key, keylen,
+					  hmacctx->ipad);
+		if (err)
+			goto out;
+		keylen = digestsize;
+	} else {
+		memcpy(hmacctx->ipad, key, keylen);
+	}
+	memset(hmacctx->ipad + keylen, 0, bs - keylen);
+	unsafe_memcpy(hmacctx->opad, hmacctx->ipad, bs,
+		      "fortified memcpy causes -Wrestrict warning");
+
+	for (i = 0; i < bs / sizeof(int); i++) {
+		*((unsigned int *)(&hmacctx->ipad) + i) ^= IPAD_DATA;
+		*((unsigned int *)(&hmacctx->opad) + i) ^= OPAD_DATA;
+	}
+
+	updated_digestsize = digestsize;
+	if (digestsize == SHA224_DIGEST_SIZE)
+		updated_digestsize = SHA256_DIGEST_SIZE;
+	else if (digestsize == SHA384_DIGEST_SIZE)
+		updated_digestsize = SHA512_DIGEST_SIZE;
+	err = chcr_compute_partial_hash(shash, hmacctx->ipad,
+					hmacctx->ipad, digestsize);
+	if (err)
+		goto out;
+	chcr_change_order(hmacctx->ipad, updated_digestsize);
+
+	err = chcr_compute_partial_hash(shash, hmacctx->opad,
+					hmacctx->opad, digestsize);
+	if (err)
+		goto out;
+	chcr_change_order(hmacctx->opad, updated_digestsize);
+out:
+	return err;
+}
+
+static int chcr_aes_xts_setkey(struct crypto_skcipher *cipher, const u8 *key,
+			       unsigned int key_len)
+{
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
+	unsigned short context_size = 0;
+	int err;
+
+	err = chcr_cipher_fallback_setkey(cipher, key, key_len);
+	if (err)
+		goto badkey_err;
+
+	memcpy(ablkctx->key, key, key_len);
+	ablkctx->enckey_len = key_len;
+	get_aes_decrypt_key(ablkctx->rrkey, ablkctx->key, key_len << 2);
+	context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD + key_len) >> 4;
+	/* Both keys for xts must be aligned to 16 byte boundary
+	 * by padding with zeros. So for 24 byte keys padding 8 zeroes.
+	 */
+	if (key_len == 48) {
+		context_size = (KEY_CONTEXT_HDR_SALT_AND_PAD + key_len
+				+ 16) >> 4;
+		memmove(ablkctx->key + 32, ablkctx->key + 24, 24);
+		memset(ablkctx->key + 24, 0, 8);
+		memset(ablkctx->key + 56, 0, 8);
+		ablkctx->enckey_len = 64;
+		ablkctx->key_ctx_hdr =
+			FILL_KEY_CTX_HDR(CHCR_KEYCTX_CIPHER_KEY_SIZE_192,
+					 CHCR_KEYCTX_NO_KEY, 1,
+					 0, context_size);
+	} else {
+		ablkctx->key_ctx_hdr =
+		FILL_KEY_CTX_HDR((key_len == AES_KEYSIZE_256) ?
+				 CHCR_KEYCTX_CIPHER_KEY_SIZE_128 :
+				 CHCR_KEYCTX_CIPHER_KEY_SIZE_256,
+				 CHCR_KEYCTX_NO_KEY, 1,
+				 0, context_size);
+	}
+	ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_XTS;
+	return 0;
+badkey_err:
+	ablkctx->enckey_len = 0;
+
+	return err;
+}
+
+static int chcr_sha_init(struct ahash_request *areq)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+	int digestsize =  crypto_ahash_digestsize(tfm);
+
+	req_ctx->data_len = 0;
+	req_ctx->reqlen = 0;
+	req_ctx->reqbfr = req_ctx->bfr1;
+	req_ctx->skbfr = req_ctx->bfr2;
+	copy_hash_init_values(req_ctx->partial_hash, digestsize);
+
+	return 0;
+}
+
+static int chcr_sha_cra_init(struct crypto_tfm *tfm)
+{
+	crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+				 sizeof(struct chcr_ahash_req_ctx));
+	return chcr_device_init(crypto_tfm_ctx(tfm));
+}
+
+static int chcr_hmac_init(struct ahash_request *areq)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(areq);
+	struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(rtfm));
+	unsigned int digestsize = crypto_ahash_digestsize(rtfm);
+	unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
+
+	chcr_sha_init(areq);
+	req_ctx->data_len = bs;
+	if (is_hmac(crypto_ahash_tfm(rtfm))) {
+		if (digestsize == SHA224_DIGEST_SIZE)
+			memcpy(req_ctx->partial_hash, hmacctx->ipad,
+			       SHA256_DIGEST_SIZE);
+		else if (digestsize == SHA384_DIGEST_SIZE)
+			memcpy(req_ctx->partial_hash, hmacctx->ipad,
+			       SHA512_DIGEST_SIZE);
+		else
+			memcpy(req_ctx->partial_hash, hmacctx->ipad,
+			       digestsize);
+	}
+	return 0;
+}
+
+static int chcr_hmac_cra_init(struct crypto_tfm *tfm)
+{
+	struct chcr_context *ctx = crypto_tfm_ctx(tfm);
+	struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
+	unsigned int digestsize =
+		crypto_ahash_digestsize(__crypto_ahash_cast(tfm));
+
+	crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+				 sizeof(struct chcr_ahash_req_ctx));
+	hmacctx->base_hash = chcr_alloc_shash(digestsize);
+	if (IS_ERR(hmacctx->base_hash))
+		return PTR_ERR(hmacctx->base_hash);
+	return chcr_device_init(crypto_tfm_ctx(tfm));
+}
+
+static void chcr_hmac_cra_exit(struct crypto_tfm *tfm)
+{
+	struct chcr_context *ctx = crypto_tfm_ctx(tfm);
+	struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
+
+	if (hmacctx->base_hash) {
+		chcr_free_shash(hmacctx->base_hash);
+		hmacctx->base_hash = NULL;
+	}
+}
+
+inline void chcr_aead_common_exit(struct aead_request *req)
+{
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct uld_ctx *u_ctx = ULD_CTX(a_ctx(tfm));
+
+	chcr_aead_dma_unmap(&u_ctx->lldi.pdev->dev, req, reqctx->op);
+}
+
+static int chcr_aead_common_init(struct aead_request *req)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	int error = -EINVAL;
+
+	/* validate key size */
+	if (aeadctx->enckey_len == 0)
+		goto err;
+	if (reqctx->op && req->cryptlen < authsize)
+		goto err;
+	if (reqctx->b0_len)
+		reqctx->scratch_pad = reqctx->iv + IV;
+	else
+		reqctx->scratch_pad = NULL;
+
+	error = chcr_aead_dma_map(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req,
+				  reqctx->op);
+	if (error) {
+		error = -ENOMEM;
+		goto err;
+	}
+
+	return 0;
+err:
+	return error;
+}
+
+static int chcr_aead_need_fallback(struct aead_request *req, int dst_nents,
+				   int aadmax, int wrlen,
+				   unsigned short op_type)
+{
+	unsigned int authsize = crypto_aead_authsize(crypto_aead_reqtfm(req));
+
+	if (((req->cryptlen - (op_type ? authsize : 0)) == 0) ||
+	    dst_nents > MAX_DSGL_ENT ||
+	    (req->assoclen > aadmax) ||
+	    (wrlen > SGE_MAX_WR_LEN))
+		return 1;
+	return 0;
+}
+
+static int chcr_aead_fallback(struct aead_request *req, unsigned short op_type)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+	struct aead_request *subreq = aead_request_ctx_dma(req);
+
+	aead_request_set_tfm(subreq, aeadctx->sw_cipher);
+	aead_request_set_callback(subreq, req->base.flags,
+				  req->base.complete, req->base.data);
+	aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
+				 req->iv);
+	aead_request_set_ad(subreq, req->assoclen);
+	return op_type ? crypto_aead_decrypt(subreq) :
+		crypto_aead_encrypt(subreq);
+}
+
+static struct sk_buff *create_authenc_wr(struct aead_request *req,
+					 unsigned short qid,
+					 int size)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_context *ctx = a_ctx(tfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct sk_buff *skb = NULL;
+	struct chcr_wr *chcr_req;
+	struct cpl_rx_phys_dsgl *phys_cpl;
+	struct ulptx_sgl *ulptx;
+	unsigned int transhdr_len;
+	unsigned int dst_size = 0, temp, subtype = get_aead_subtype(tfm);
+	unsigned int   kctx_len = 0, dnents, snents;
+	unsigned int  authsize = crypto_aead_authsize(tfm);
+	int error = -EINVAL;
+	u8 *ivptr;
+	int null = 0;
+	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
+		GFP_ATOMIC;
+	struct adapter *adap = padap(ctx->dev);
+	unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan;
+
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[rx_channel_id]);
+	if (req->cryptlen == 0)
+		return NULL;
+
+	reqctx->b0_len = 0;
+	error = chcr_aead_common_init(req);
+	if (error)
+		return ERR_PTR(error);
+
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL ||
+		subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
+		null = 1;
+	}
+	dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen +
+		(reqctx->op ? -authsize : authsize), CHCR_DST_SG_SIZE, 0);
+	dnents += MIN_AUTH_SG; // For IV
+	snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen,
+			       CHCR_SRC_SG_SIZE, 0);
+	dst_size = get_space_for_phys_dsgl(dnents);
+	kctx_len = (KEY_CONTEXT_CTX_LEN_G(ntohl(aeadctx->key_ctx_hdr)) << 4)
+		- sizeof(chcr_req->key_ctx);
+	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+	reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen) <
+			SGE_MAX_WR_LEN;
+	temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen, 16)
+			: (sgl_len(snents) * 8);
+	transhdr_len += temp;
+	transhdr_len = roundup(transhdr_len, 16);
+
+	if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
+				    transhdr_len, reqctx->op)) {
+		atomic_inc(&adap->chcr_stats.fallback);
+		chcr_aead_common_exit(req);
+		return ERR_PTR(chcr_aead_fallback(req, reqctx->op));
+	}
+	skb = alloc_skb(transhdr_len, flags);
+	if (!skb) {
+		error = -ENOMEM;
+		goto err;
+	}
+
+	chcr_req = __skb_put_zero(skb, transhdr_len);
+
+	temp  = (reqctx->op == CHCR_ENCRYPT_OP) ? 0 : authsize;
+
+	/*
+	 * Input order	is AAD,IV and Payload. where IV should be included as
+	 * the part of authdata. All other fields should be filled according
+	 * to the hardware spec
+	 */
+	chcr_req->sec_cpl.op_ivinsrtofst =
+				FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 1);
+	chcr_req->sec_cpl.pldlen = htonl(req->assoclen + IV + req->cryptlen);
+	chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
+					null ? 0 : 1 + IV,
+					null ? 0 : IV + req->assoclen,
+					req->assoclen + IV + 1,
+					(temp & 0x1F0) >> 4);
+	chcr_req->sec_cpl.cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT(
+					temp & 0xF,
+					null ? 0 : req->assoclen + IV + 1,
+					temp, temp);
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL ||
+	    subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA)
+		temp = CHCR_SCMD_CIPHER_MODE_AES_CTR;
+	else
+		temp = CHCR_SCMD_CIPHER_MODE_AES_CBC;
+	chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op,
+					(reqctx->op == CHCR_ENCRYPT_OP) ? 1 : 0,
+					temp,
+					actx->auth_mode, aeadctx->hmac_ctrl,
+					IV >> 1);
+	chcr_req->sec_cpl.ivgen_hdrlen =  FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1,
+					 0, 0, dst_size);
+
+	chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
+	if (reqctx->op == CHCR_ENCRYPT_OP ||
+		subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
+		subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL)
+		memcpy(chcr_req->key_ctx.key, aeadctx->key,
+		       aeadctx->enckey_len);
+	else
+		memcpy(chcr_req->key_ctx.key, actx->dec_rrkey,
+		       aeadctx->enckey_len);
+
+	memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
+	       actx->h_iopad, kctx_len - roundup(aeadctx->enckey_len, 16));
+	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
+	ivptr = (u8 *)(phys_cpl + 1) + dst_size;
+	ulptx = (struct ulptx_sgl *)(ivptr + IV);
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
+	    subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
+		memcpy(ivptr, aeadctx->nonce, CTR_RFC3686_NONCE_SIZE);
+		memcpy(ivptr + CTR_RFC3686_NONCE_SIZE, req->iv,
+				CTR_RFC3686_IV_SIZE);
+		*(__be32 *)(ivptr + CTR_RFC3686_NONCE_SIZE +
+			CTR_RFC3686_IV_SIZE) = cpu_to_be32(1);
+	} else {
+		memcpy(ivptr, req->iv, IV);
+	}
+	chcr_add_aead_dst_ent(req, phys_cpl, qid);
+	chcr_add_aead_src_ent(req, ulptx);
+	atomic_inc(&adap->chcr_stats.cipher_rqst);
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV +
+		kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen) : 0);
+	create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size,
+		   transhdr_len, temp, 0);
+	reqctx->skb = skb;
+
+	return skb;
+err:
+	chcr_aead_common_exit(req);
+
+	return ERR_PTR(error);
+}
+
+int chcr_aead_dma_map(struct device *dev,
+		      struct aead_request *req,
+		      unsigned short op_type)
+{
+	int error;
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	int src_len, dst_len;
+
+	/* calculate and handle src and dst sg length separately
+	 * for inplace and out-of place operations
+	 */
+	if (req->src == req->dst) {
+		src_len = req->assoclen + req->cryptlen + (op_type ?
+							0 : authsize);
+		dst_len = src_len;
+	} else {
+		src_len = req->assoclen + req->cryptlen;
+		dst_len = req->assoclen + req->cryptlen + (op_type ?
+							-authsize : authsize);
+	}
+
+	if (!req->cryptlen || !src_len || !dst_len)
+		return 0;
+	reqctx->iv_dma = dma_map_single(dev, reqctx->iv, (IV + reqctx->b0_len),
+					DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(dev, reqctx->iv_dma))
+		return -ENOMEM;
+	if (reqctx->b0_len)
+		reqctx->b0_dma = reqctx->iv_dma + IV;
+	else
+		reqctx->b0_dma = 0;
+	if (req->src == req->dst) {
+		error = dma_map_sg(dev, req->src,
+				sg_nents_for_len(req->src, src_len),
+					DMA_BIDIRECTIONAL);
+		if (!error)
+			goto err;
+	} else {
+		error = dma_map_sg(dev, req->src,
+				   sg_nents_for_len(req->src, src_len),
+				   DMA_TO_DEVICE);
+		if (!error)
+			goto err;
+		error = dma_map_sg(dev, req->dst,
+				   sg_nents_for_len(req->dst, dst_len),
+				   DMA_FROM_DEVICE);
+		if (!error) {
+			dma_unmap_sg(dev, req->src,
+				     sg_nents_for_len(req->src, src_len),
+				     DMA_TO_DEVICE);
+			goto err;
+		}
+	}
+
+	return 0;
+err:
+	dma_unmap_single(dev, reqctx->iv_dma, IV, DMA_BIDIRECTIONAL);
+	return -ENOMEM;
+}
+
+void chcr_aead_dma_unmap(struct device *dev,
+			 struct aead_request *req,
+			 unsigned short op_type)
+{
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	int src_len, dst_len;
+
+	/* calculate and handle src and dst sg length separately
+	 * for inplace and out-of place operations
+	 */
+	if (req->src == req->dst) {
+		src_len = req->assoclen + req->cryptlen + (op_type ?
+							0 : authsize);
+		dst_len = src_len;
+	} else {
+		src_len = req->assoclen + req->cryptlen;
+		dst_len = req->assoclen + req->cryptlen + (op_type ?
+						-authsize : authsize);
+	}
+
+	if (!req->cryptlen || !src_len || !dst_len)
+		return;
+
+	dma_unmap_single(dev, reqctx->iv_dma, (IV + reqctx->b0_len),
+					DMA_BIDIRECTIONAL);
+	if (req->src == req->dst) {
+		dma_unmap_sg(dev, req->src,
+			     sg_nents_for_len(req->src, src_len),
+			     DMA_BIDIRECTIONAL);
+	} else {
+		dma_unmap_sg(dev, req->src,
+			     sg_nents_for_len(req->src, src_len),
+			     DMA_TO_DEVICE);
+		dma_unmap_sg(dev, req->dst,
+			     sg_nents_for_len(req->dst, dst_len),
+			     DMA_FROM_DEVICE);
+	}
+}
+
+void chcr_add_aead_src_ent(struct aead_request *req,
+			   struct ulptx_sgl *ulptx)
+{
+	struct ulptx_walk ulp_walk;
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+
+	if (reqctx->imm) {
+		u8 *buf = (u8 *)ulptx;
+
+		if (reqctx->b0_len) {
+			memcpy(buf, reqctx->scratch_pad, reqctx->b0_len);
+			buf += reqctx->b0_len;
+		}
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
+				   buf, req->cryptlen + req->assoclen, 0);
+	} else {
+		ulptx_walk_init(&ulp_walk, ulptx);
+		if (reqctx->b0_len)
+			ulptx_walk_add_page(&ulp_walk, reqctx->b0_len,
+					    reqctx->b0_dma);
+		ulptx_walk_add_sg(&ulp_walk, req->src, req->cryptlen +
+				  req->assoclen,  0);
+		ulptx_walk_end(&ulp_walk);
+	}
+}
+
+void chcr_add_aead_dst_ent(struct aead_request *req,
+			   struct cpl_rx_phys_dsgl *phys_cpl,
+			   unsigned short qid)
+{
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct dsgl_walk dsgl_walk;
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	struct chcr_context *ctx = a_ctx(tfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	u32 temp;
+	unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan;
+
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[rx_channel_id]);
+	dsgl_walk_init(&dsgl_walk, phys_cpl);
+	dsgl_walk_add_page(&dsgl_walk, IV + reqctx->b0_len, reqctx->iv_dma);
+	temp = req->assoclen + req->cryptlen +
+		(reqctx->op ? -authsize : authsize);
+	dsgl_walk_add_sg(&dsgl_walk, req->dst, temp, 0);
+	dsgl_walk_end(&dsgl_walk, qid, rx_channel_id);
+}
+
+void chcr_add_cipher_src_ent(struct skcipher_request *req,
+			     void *ulptx,
+			     struct  cipher_wr_param *wrparam)
+{
+	struct ulptx_walk ulp_walk;
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	u8 *buf = ulptx;
+
+	memcpy(buf, reqctx->iv, IV);
+	buf += IV;
+	if (reqctx->imm) {
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
+				   buf, wrparam->bytes, reqctx->processed);
+	} else {
+		ulptx_walk_init(&ulp_walk, (struct ulptx_sgl *)buf);
+		ulptx_walk_add_sg(&ulp_walk, reqctx->srcsg, wrparam->bytes,
+				  reqctx->src_ofst);
+		reqctx->srcsg = ulp_walk.last_sg;
+		reqctx->src_ofst = ulp_walk.last_sg_len;
+		ulptx_walk_end(&ulp_walk);
+	}
+}
+
+void chcr_add_cipher_dst_ent(struct skcipher_request *req,
+			     struct cpl_rx_phys_dsgl *phys_cpl,
+			     struct  cipher_wr_param *wrparam,
+			     unsigned short qid)
+{
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(wrparam->req);
+	struct chcr_context *ctx = c_ctx(tfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct dsgl_walk dsgl_walk;
+	unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan;
+
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[rx_channel_id]);
+	dsgl_walk_init(&dsgl_walk, phys_cpl);
+	dsgl_walk_add_sg(&dsgl_walk, reqctx->dstsg, wrparam->bytes,
+			 reqctx->dst_ofst);
+	reqctx->dstsg = dsgl_walk.last_sg;
+	reqctx->dst_ofst = dsgl_walk.last_sg_len;
+	dsgl_walk_end(&dsgl_walk, qid, rx_channel_id);
+}
+
+void chcr_add_hash_src_ent(struct ahash_request *req,
+			   struct ulptx_sgl *ulptx,
+			   struct hash_wr_param *param)
+{
+	struct ulptx_walk ulp_walk;
+	struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
+
+	if (reqctx->hctx_wr.imm) {
+		u8 *buf = (u8 *)ulptx;
+
+		if (param->bfr_len) {
+			memcpy(buf, reqctx->reqbfr, param->bfr_len);
+			buf += param->bfr_len;
+		}
+
+		sg_pcopy_to_buffer(reqctx->hctx_wr.srcsg,
+				   sg_nents(reqctx->hctx_wr.srcsg), buf,
+				   param->sg_len, 0);
+	} else {
+		ulptx_walk_init(&ulp_walk, ulptx);
+		if (param->bfr_len)
+			ulptx_walk_add_page(&ulp_walk, param->bfr_len,
+					    reqctx->hctx_wr.dma_addr);
+		ulptx_walk_add_sg(&ulp_walk, reqctx->hctx_wr.srcsg,
+				  param->sg_len, reqctx->hctx_wr.src_ofst);
+		reqctx->hctx_wr.srcsg = ulp_walk.last_sg;
+		reqctx->hctx_wr.src_ofst = ulp_walk.last_sg_len;
+		ulptx_walk_end(&ulp_walk);
+	}
+}
+
+int chcr_hash_dma_map(struct device *dev,
+		      struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+	int error = 0;
+
+	if (!req->nbytes)
+		return 0;
+	error = dma_map_sg(dev, req->src, sg_nents(req->src),
+			   DMA_TO_DEVICE);
+	if (!error)
+		return -ENOMEM;
+	req_ctx->hctx_wr.is_sg_map = 1;
+	return 0;
+}
+
+void chcr_hash_dma_unmap(struct device *dev,
+			 struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+
+	if (!req->nbytes)
+		return;
+
+	dma_unmap_sg(dev, req->src, sg_nents(req->src),
+			   DMA_TO_DEVICE);
+	req_ctx->hctx_wr.is_sg_map = 0;
+
+}
+
+int chcr_cipher_dma_map(struct device *dev,
+			struct skcipher_request *req)
+{
+	int error;
+
+	if (req->src == req->dst) {
+		error = dma_map_sg(dev, req->src, sg_nents(req->src),
+				   DMA_BIDIRECTIONAL);
+		if (!error)
+			goto err;
+	} else {
+		error = dma_map_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+		if (!error)
+			goto err;
+		error = dma_map_sg(dev, req->dst, sg_nents(req->dst),
+				   DMA_FROM_DEVICE);
+		if (!error) {
+			dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+			goto err;
+		}
+	}
+
+	return 0;
+err:
+	return -ENOMEM;
+}
+
+void chcr_cipher_dma_unmap(struct device *dev,
+			   struct skcipher_request *req)
+{
+	if (req->src == req->dst) {
+		dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_BIDIRECTIONAL);
+	} else {
+		dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+		dma_unmap_sg(dev, req->dst, sg_nents(req->dst),
+				   DMA_FROM_DEVICE);
+	}
+}
+
+static int set_msg_len(u8 *block, unsigned int msglen, int csize)
+{
+	__be32 data;
+
+	memset(block, 0, csize);
+	block += csize;
+
+	if (csize >= 4)
+		csize = 4;
+	else if (msglen > (unsigned int)(1 << (8 * csize)))
+		return -EOVERFLOW;
+
+	data = cpu_to_be32(msglen);
+	memcpy(block - csize, (u8 *)&data + 4 - csize, csize);
+
+	return 0;
+}
+
+static int generate_b0(struct aead_request *req, u8 *ivptr,
+			unsigned short op_type)
+{
+	unsigned int l, lp, m;
+	int rc;
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	u8 *b0 = reqctx->scratch_pad;
+
+	m = crypto_aead_authsize(aead);
+
+	memcpy(b0, ivptr, 16);
+
+	lp = b0[0];
+	l = lp + 1;
+
+	/* set m, bits 3-5 */
+	*b0 |= (8 * ((m - 2) / 2));
+
+	/* set adata, bit 6, if associated data is used */
+	if (req->assoclen)
+		*b0 |= 64;
+	rc = set_msg_len(b0 + 16 - l,
+			 (op_type == CHCR_DECRYPT_OP) ?
+			 req->cryptlen - m : req->cryptlen, l);
+
+	return rc;
+}
+
+static inline int crypto_ccm_check_iv(const u8 *iv)
+{
+	/* 2 <= L <= 8, so 1 <= L' <= 7. */
+	if (iv[0] < 1 || iv[0] > 7)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int ccm_format_packet(struct aead_request *req,
+			     u8 *ivptr,
+			     unsigned int sub_type,
+			     unsigned short op_type,
+			     unsigned int assoclen)
+{
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+	int rc = 0;
+
+	if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) {
+		ivptr[0] = 3;
+		memcpy(ivptr + 1, &aeadctx->salt[0], 3);
+		memcpy(ivptr + 4, req->iv, 8);
+		memset(ivptr + 12, 0, 4);
+	} else {
+		memcpy(ivptr, req->iv, 16);
+	}
+	if (assoclen)
+		put_unaligned_be16(assoclen, &reqctx->scratch_pad[16]);
+
+	rc = generate_b0(req, ivptr, op_type);
+	/* zero the ctr value */
+	memset(ivptr + 15 - ivptr[0], 0, ivptr[0] + 1);
+	return rc;
+}
+
+static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
+				  unsigned int dst_size,
+				  struct aead_request *req,
+				  unsigned short op_type)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_context *ctx = a_ctx(tfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	unsigned int cipher_mode = CHCR_SCMD_CIPHER_MODE_AES_CCM;
+	unsigned int mac_mode = CHCR_SCMD_AUTH_MODE_CBCMAC;
+	unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan;
+	unsigned int ccm_xtra;
+	unsigned int tag_offset = 0, auth_offset = 0;
+	unsigned int assoclen;
+
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[rx_channel_id]);
+
+	if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)
+		assoclen = req->assoclen - 8;
+	else
+		assoclen = req->assoclen;
+	ccm_xtra = CCM_B0_SIZE +
+		((assoclen) ? CCM_AAD_FIELD_SIZE : 0);
+
+	auth_offset = req->cryptlen ?
+		(req->assoclen + IV + 1 + ccm_xtra) : 0;
+	if (op_type == CHCR_DECRYPT_OP) {
+		if (crypto_aead_authsize(tfm) != req->cryptlen)
+			tag_offset = crypto_aead_authsize(tfm);
+		else
+			auth_offset = 0;
+	}
+
+	sec_cpl->op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(rx_channel_id, 2, 1);
+	sec_cpl->pldlen =
+		htonl(req->assoclen + IV + req->cryptlen + ccm_xtra);
+	/* For CCM there wil be b0 always. So AAD start will be 1 always */
+	sec_cpl->aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
+				1 + IV,	IV + assoclen + ccm_xtra,
+				req->assoclen + IV + 1 + ccm_xtra, 0);
+
+	sec_cpl->cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT(0,
+					auth_offset, tag_offset,
+					(op_type == CHCR_ENCRYPT_OP) ? 0 :
+					crypto_aead_authsize(tfm));
+	sec_cpl->seqno_numivs =  FILL_SEC_CPL_SCMD0_SEQNO(op_type,
+					(op_type == CHCR_ENCRYPT_OP) ? 0 : 1,
+					cipher_mode, mac_mode,
+					aeadctx->hmac_ctrl, IV >> 1);
+
+	sec_cpl->ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1, 0,
+					0, dst_size);
+}
+
+static int aead_ccm_validate_input(unsigned short op_type,
+				   struct aead_request *req,
+				   struct chcr_aead_ctx *aeadctx,
+				   unsigned int sub_type)
+{
+	if (sub_type != CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) {
+		if (crypto_ccm_check_iv(req->iv)) {
+			pr_err("CCM: IV check fails\n");
+			return -EINVAL;
+		}
+	} else {
+		if (req->assoclen != 16 && req->assoclen != 20) {
+			pr_err("RFC4309: Invalid AAD length %d\n",
+			       req->assoclen);
+			return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+static struct sk_buff *create_aead_ccm_wr(struct aead_request *req,
+					  unsigned short qid,
+					  int size)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct sk_buff *skb = NULL;
+	struct chcr_wr *chcr_req;
+	struct cpl_rx_phys_dsgl *phys_cpl;
+	struct ulptx_sgl *ulptx;
+	unsigned int transhdr_len;
+	unsigned int dst_size = 0, kctx_len, dnents, temp, snents;
+	unsigned int sub_type, assoclen = req->assoclen;
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	int error = -EINVAL;
+	u8 *ivptr;
+	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
+		GFP_ATOMIC;
+	struct adapter *adap = padap(a_ctx(tfm)->dev);
+
+	sub_type = get_aead_subtype(tfm);
+	if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)
+		assoclen -= 8;
+	reqctx->b0_len = CCM_B0_SIZE + (assoclen ? CCM_AAD_FIELD_SIZE : 0);
+	error = chcr_aead_common_init(req);
+	if (error)
+		return ERR_PTR(error);
+
+	error = aead_ccm_validate_input(reqctx->op, req, aeadctx, sub_type);
+	if (error)
+		goto err;
+	dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen
+			+ (reqctx->op ? -authsize : authsize),
+			CHCR_DST_SG_SIZE, 0);
+	dnents += MIN_CCM_SG; // For IV and B0
+	dst_size = get_space_for_phys_dsgl(dnents);
+	snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen,
+			       CHCR_SRC_SG_SIZE, 0);
+	snents += MIN_CCM_SG; //For B0
+	kctx_len = roundup(aeadctx->enckey_len, 16) * 2;
+	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+	reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen +
+		       reqctx->b0_len) <= SGE_MAX_WR_LEN;
+	temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen +
+				     reqctx->b0_len, 16) :
+		(sgl_len(snents) *  8);
+	transhdr_len += temp;
+	transhdr_len = roundup(transhdr_len, 16);
+
+	if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE -
+				reqctx->b0_len, transhdr_len, reqctx->op)) {
+		atomic_inc(&adap->chcr_stats.fallback);
+		chcr_aead_common_exit(req);
+		return ERR_PTR(chcr_aead_fallback(req, reqctx->op));
+	}
+	skb = alloc_skb(transhdr_len,  flags);
+
+	if (!skb) {
+		error = -ENOMEM;
+		goto err;
+	}
+
+	chcr_req = __skb_put_zero(skb, transhdr_len);
+
+	fill_sec_cpl_for_aead(&chcr_req->sec_cpl, dst_size, req, reqctx->op);
+
+	chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
+	memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
+	memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
+			aeadctx->key, aeadctx->enckey_len);
+
+	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
+	ivptr = (u8 *)(phys_cpl + 1) + dst_size;
+	ulptx = (struct ulptx_sgl *)(ivptr + IV);
+	error = ccm_format_packet(req, ivptr, sub_type, reqctx->op, assoclen);
+	if (error)
+		goto dstmap_fail;
+	chcr_add_aead_dst_ent(req, phys_cpl, qid);
+	chcr_add_aead_src_ent(req, ulptx);
+
+	atomic_inc(&adap->chcr_stats.aead_rqst);
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV +
+		kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen +
+		reqctx->b0_len) : 0);
+	create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, 0,
+		    transhdr_len, temp, 0);
+	reqctx->skb = skb;
+
+	return skb;
+dstmap_fail:
+	kfree_skb(skb);
+err:
+	chcr_aead_common_exit(req);
+	return ERR_PTR(error);
+}
+
+static struct sk_buff *create_gcm_wr(struct aead_request *req,
+				     unsigned short qid,
+				     int size)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_context *ctx = a_ctx(tfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct sk_buff *skb = NULL;
+	struct chcr_wr *chcr_req;
+	struct cpl_rx_phys_dsgl *phys_cpl;
+	struct ulptx_sgl *ulptx;
+	unsigned int transhdr_len, dnents = 0, snents;
+	unsigned int dst_size = 0, temp = 0, kctx_len, assoclen = req->assoclen;
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	int error = -EINVAL;
+	u8 *ivptr;
+	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
+		GFP_ATOMIC;
+	struct adapter *adap = padap(ctx->dev);
+	unsigned int rx_channel_id = reqctx->rxqidx / ctx->rxq_perchan;
+
+	rx_channel_id = cxgb4_port_e2cchan(u_ctx->lldi.ports[rx_channel_id]);
+	if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106)
+		assoclen = req->assoclen - 8;
+
+	reqctx->b0_len = 0;
+	error = chcr_aead_common_init(req);
+	if (error)
+		return ERR_PTR(error);
+	dnents = sg_nents_xlen(req->dst, req->assoclen + req->cryptlen +
+				(reqctx->op ? -authsize : authsize),
+				CHCR_DST_SG_SIZE, 0);
+	snents = sg_nents_xlen(req->src, req->assoclen + req->cryptlen,
+			       CHCR_SRC_SG_SIZE, 0);
+	dnents += MIN_GCM_SG; // For IV
+	dst_size = get_space_for_phys_dsgl(dnents);
+	kctx_len = roundup(aeadctx->enckey_len, 16) + AEAD_H_SIZE;
+	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+	reqctx->imm = (transhdr_len + req->assoclen + req->cryptlen) <=
+			SGE_MAX_WR_LEN;
+	temp = reqctx->imm ? roundup(req->assoclen + req->cryptlen, 16) :
+		(sgl_len(snents) * 8);
+	transhdr_len += temp;
+	transhdr_len = roundup(transhdr_len, 16);
+	if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
+			    transhdr_len, reqctx->op)) {
+
+		atomic_inc(&adap->chcr_stats.fallback);
+		chcr_aead_common_exit(req);
+		return ERR_PTR(chcr_aead_fallback(req, reqctx->op));
+	}
+	skb = alloc_skb(transhdr_len, flags);
+	if (!skb) {
+		error = -ENOMEM;
+		goto err;
+	}
+
+	chcr_req = __skb_put_zero(skb, transhdr_len);
+
+	//Offset of tag from end
+	temp = (reqctx->op == CHCR_ENCRYPT_OP) ? 0 : authsize;
+	chcr_req->sec_cpl.op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(
+						rx_channel_id, 2, 1);
+	chcr_req->sec_cpl.pldlen =
+		htonl(req->assoclen + IV + req->cryptlen);
+	chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
+					assoclen ? 1 + IV : 0,
+					assoclen ? IV + assoclen : 0,
+					req->assoclen + IV + 1, 0);
+	chcr_req->sec_cpl.cipherstop_lo_authinsert =
+			FILL_SEC_CPL_AUTHINSERT(0, req->assoclen + IV + 1,
+						temp, temp);
+	chcr_req->sec_cpl.seqno_numivs =
+			FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, (reqctx->op ==
+					CHCR_ENCRYPT_OP) ? 1 : 0,
+					CHCR_SCMD_CIPHER_MODE_AES_GCM,
+					CHCR_SCMD_AUTH_MODE_GHASH,
+					aeadctx->hmac_ctrl, IV >> 1);
+	chcr_req->sec_cpl.ivgen_hdrlen =  FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1,
+					0, 0, dst_size);
+	chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
+	memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
+	memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
+	       GCM_CTX(aeadctx)->ghash_h, AEAD_H_SIZE);
+
+	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
+	ivptr = (u8 *)(phys_cpl + 1) + dst_size;
+	/* prepare a 16 byte iv */
+	/* S   A   L  T |  IV | 0x00000001 */
+	if (get_aead_subtype(tfm) ==
+	    CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) {
+		memcpy(ivptr, aeadctx->salt, 4);
+		memcpy(ivptr + 4, req->iv, GCM_RFC4106_IV_SIZE);
+	} else {
+		memcpy(ivptr, req->iv, GCM_AES_IV_SIZE);
+	}
+	put_unaligned_be32(0x01, &ivptr[12]);
+	ulptx = (struct ulptx_sgl *)(ivptr + 16);
+
+	chcr_add_aead_dst_ent(req, phys_cpl, qid);
+	chcr_add_aead_src_ent(req, ulptx);
+	atomic_inc(&adap->chcr_stats.aead_rqst);
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + IV +
+		kctx_len + (reqctx->imm ? (req->assoclen + req->cryptlen) : 0);
+	create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size,
+		    transhdr_len, temp, reqctx->verify);
+	reqctx->skb = skb;
+	return skb;
+
+err:
+	chcr_aead_common_exit(req);
+	return ERR_PTR(error);
+}
+
+
+
+static int chcr_aead_cra_init(struct crypto_aead *tfm)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+	struct aead_alg *alg = crypto_aead_alg(tfm);
+
+	aeadctx->sw_cipher = crypto_alloc_aead(alg->base.cra_name, 0,
+					       CRYPTO_ALG_NEED_FALLBACK |
+					       CRYPTO_ALG_ASYNC);
+	if  (IS_ERR(aeadctx->sw_cipher))
+		return PTR_ERR(aeadctx->sw_cipher);
+	crypto_aead_set_reqsize_dma(
+		tfm, max(sizeof(struct chcr_aead_reqctx),
+			 sizeof(struct aead_request) +
+			 crypto_aead_reqsize(aeadctx->sw_cipher)));
+	return chcr_device_init(a_ctx(tfm));
+}
+
+static void chcr_aead_cra_exit(struct crypto_aead *tfm)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+
+	crypto_free_aead(aeadctx->sw_cipher);
+}
+
+static int chcr_authenc_null_setauthsize(struct crypto_aead *tfm,
+					unsigned int authsize)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+
+	aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NOP;
+	aeadctx->mayverify = VERIFY_HW;
+	return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
+}
+static int chcr_authenc_setauthsize(struct crypto_aead *tfm,
+				    unsigned int authsize)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+	u32 maxauth = crypto_aead_maxauthsize(tfm);
+
+	/*SHA1 authsize in ipsec is 12 instead of 10 i.e maxauthsize / 2 is not
+	 * true for sha1. authsize == 12 condition should be before
+	 * authsize == (maxauth >> 1)
+	 */
+	if (authsize == ICV_4) {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1;
+		aeadctx->mayverify = VERIFY_HW;
+	} else if (authsize == ICV_6) {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL2;
+		aeadctx->mayverify = VERIFY_HW;
+	} else if (authsize == ICV_10) {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366;
+		aeadctx->mayverify = VERIFY_HW;
+	} else if (authsize == ICV_12) {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
+		aeadctx->mayverify = VERIFY_HW;
+	} else if (authsize == ICV_14) {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3;
+		aeadctx->mayverify = VERIFY_HW;
+	} else if (authsize == (maxauth >> 1)) {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
+		aeadctx->mayverify = VERIFY_HW;
+	} else if (authsize == maxauth) {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
+		aeadctx->mayverify = VERIFY_HW;
+	} else {
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
+		aeadctx->mayverify = VERIFY_SW;
+	}
+	return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
+}
+
+
+static int chcr_gcm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+
+	switch (authsize) {
+	case ICV_4:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_8:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_12:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_14:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_16:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_13:
+	case ICV_15:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
+		aeadctx->mayverify = VERIFY_SW;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
+}
+
+static int chcr_4106_4309_setauthsize(struct crypto_aead *tfm,
+					  unsigned int authsize)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+
+	switch (authsize) {
+	case ICV_8:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_12:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_16:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
+}
+
+static int chcr_ccm_setauthsize(struct crypto_aead *tfm,
+				unsigned int authsize)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+
+	switch (authsize) {
+	case ICV_4:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL1;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_6:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL2;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_8:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_DIV2;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_10:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_12:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_14:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_PL3;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	case ICV_16:
+		aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
+		aeadctx->mayverify = VERIFY_HW;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
+}
+
+static int chcr_ccm_common_setkey(struct crypto_aead *aead,
+				const u8 *key,
+				unsigned int keylen)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
+	unsigned char ck_size, mk_size;
+	int key_ctx_size = 0;
+
+	key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) * 2;
+	if (keylen == AES_KEYSIZE_128) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
+		mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_128;
+	} else if (keylen == AES_KEYSIZE_192) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
+		mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_192;
+	} else if (keylen == AES_KEYSIZE_256) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
+		mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_256;
+	} else {
+		aeadctx->enckey_len = 0;
+		return	-EINVAL;
+	}
+	aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, mk_size, 0, 0,
+						key_ctx_size >> 4);
+	memcpy(aeadctx->key, key, keylen);
+	aeadctx->enckey_len = keylen;
+
+	return 0;
+}
+
+static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
+				const u8 *key,
+				unsigned int keylen)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
+	int error;
+
+	crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+	crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) &
+			      CRYPTO_TFM_REQ_MASK);
+	error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+	if (error)
+		return error;
+	return chcr_ccm_common_setkey(aead, key, keylen);
+}
+
+static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
+				    unsigned int keylen)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
+	int error;
+
+	if (keylen < 3) {
+		aeadctx->enckey_len = 0;
+		return	-EINVAL;
+	}
+	crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+	crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) &
+			      CRYPTO_TFM_REQ_MASK);
+	error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+	if (error)
+		return error;
+	keylen -= 3;
+	memcpy(aeadctx->salt, key + keylen, 3);
+	return chcr_ccm_common_setkey(aead, key, keylen);
+}
+
+static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key,
+			   unsigned int keylen)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
+	struct chcr_gcm_ctx *gctx = GCM_CTX(aeadctx);
+	unsigned int ck_size;
+	int ret = 0, key_ctx_size = 0;
+	struct crypto_aes_ctx aes;
+
+	aeadctx->enckey_len = 0;
+	crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+	crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead)
+			      & CRYPTO_TFM_REQ_MASK);
+	ret = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+	if (ret)
+		goto out;
+
+	if (get_aead_subtype(aead) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 &&
+	    keylen > 3) {
+		keylen -= 4;  /* nonce/salt is present in the last 4 bytes */
+		memcpy(aeadctx->salt, key + keylen, 4);
+	}
+	if (keylen == AES_KEYSIZE_128) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
+	} else if (keylen == AES_KEYSIZE_192) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
+	} else if (keylen == AES_KEYSIZE_256) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
+	} else {
+		pr_err("GCM: Invalid key length %d\n", keylen);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	memcpy(aeadctx->key, key, keylen);
+	aeadctx->enckey_len = keylen;
+	key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) +
+		AEAD_H_SIZE;
+	aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size,
+						CHCR_KEYCTX_MAC_KEY_SIZE_128,
+						0, 0,
+						key_ctx_size >> 4);
+	/* Calculate the H = CIPH(K, 0 repeated 16 times).
+	 * It will go in key context
+	 */
+	ret = aes_expandkey(&aes, key, keylen);
+	if (ret) {
+		aeadctx->enckey_len = 0;
+		goto out;
+	}
+	memset(gctx->ghash_h, 0, AEAD_H_SIZE);
+	aes_encrypt(&aes, gctx->ghash_h, gctx->ghash_h);
+	memzero_explicit(&aes, sizeof(aes));
+
+out:
+	return ret;
+}
+
+static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
+				   unsigned int keylen)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc));
+	struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
+	/* it contains auth and cipher key both*/
+	struct crypto_authenc_keys keys;
+	unsigned int bs, subtype;
+	unsigned int max_authsize = crypto_aead_alg(authenc)->maxauthsize;
+	int err = 0, i, key_ctx_len = 0;
+	unsigned char ck_size = 0;
+	unsigned char pad[CHCR_HASH_MAX_BLOCK_SIZE_128] = { 0 };
+	struct crypto_shash *base_hash = ERR_PTR(-EINVAL);
+	struct algo_param param;
+	int align;
+	u8 *o_ptr = NULL;
+
+	crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+	crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc)
+			      & CRYPTO_TFM_REQ_MASK);
+	err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+	if (err)
+		goto out;
+
+	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
+		goto out;
+
+	if (get_alg_config(&param, max_authsize)) {
+		pr_err("Unsupported digest size\n");
+		goto out;
+	}
+	subtype = get_aead_subtype(authenc);
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
+		subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
+		if (keys.enckeylen < CTR_RFC3686_NONCE_SIZE)
+			goto out;
+		memcpy(aeadctx->nonce, keys.enckey + (keys.enckeylen
+		- CTR_RFC3686_NONCE_SIZE), CTR_RFC3686_NONCE_SIZE);
+		keys.enckeylen -= CTR_RFC3686_NONCE_SIZE;
+	}
+	if (keys.enckeylen == AES_KEYSIZE_128) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
+	} else if (keys.enckeylen == AES_KEYSIZE_192) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
+	} else if (keys.enckeylen == AES_KEYSIZE_256) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
+	} else {
+		pr_err("Unsupported cipher key\n");
+		goto out;
+	}
+
+	/* Copy only encryption key. We use authkey to generate h(ipad) and
+	 * h(opad) so authkey is not needed again. authkeylen size have the
+	 * size of the hash digest size.
+	 */
+	memcpy(aeadctx->key, keys.enckey, keys.enckeylen);
+	aeadctx->enckey_len = keys.enckeylen;
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_SHA ||
+		subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL) {
+
+		get_aes_decrypt_key(actx->dec_rrkey, aeadctx->key,
+			    aeadctx->enckey_len << 3);
+	}
+	base_hash  = chcr_alloc_shash(max_authsize);
+	if (IS_ERR(base_hash)) {
+		pr_err("Base driver cannot be loaded\n");
+		goto out;
+	}
+	{
+		SHASH_DESC_ON_STACK(shash, base_hash);
+
+		shash->tfm = base_hash;
+		bs = crypto_shash_blocksize(base_hash);
+		align = KEYCTX_ALIGN_PAD(max_authsize);
+		o_ptr =  actx->h_iopad + param.result_size + align;
+
+		if (keys.authkeylen > bs) {
+			err = crypto_shash_digest(shash, keys.authkey,
+						  keys.authkeylen,
+						  o_ptr);
+			if (err) {
+				pr_err("Base driver cannot be loaded\n");
+				goto out;
+			}
+			keys.authkeylen = max_authsize;
+		} else
+			memcpy(o_ptr, keys.authkey, keys.authkeylen);
+
+		/* Compute the ipad-digest*/
+		memset(pad + keys.authkeylen, 0, bs - keys.authkeylen);
+		memcpy(pad, o_ptr, keys.authkeylen);
+		for (i = 0; i < bs >> 2; i++)
+			*((unsigned int *)pad + i) ^= IPAD_DATA;
+
+		if (chcr_compute_partial_hash(shash, pad, actx->h_iopad,
+					      max_authsize))
+			goto out;
+		/* Compute the opad-digest */
+		memset(pad + keys.authkeylen, 0, bs - keys.authkeylen);
+		memcpy(pad, o_ptr, keys.authkeylen);
+		for (i = 0; i < bs >> 2; i++)
+			*((unsigned int *)pad + i) ^= OPAD_DATA;
+
+		if (chcr_compute_partial_hash(shash, pad, o_ptr, max_authsize))
+			goto out;
+
+		/* convert the ipad and opad digest to network order */
+		chcr_change_order(actx->h_iopad, param.result_size);
+		chcr_change_order(o_ptr, param.result_size);
+		key_ctx_len = sizeof(struct _key_ctx) +
+			roundup(keys.enckeylen, 16) +
+			(param.result_size + align) * 2;
+		aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, param.mk_size,
+						0, 1, key_ctx_len >> 4);
+		actx->auth_mode = param.auth_mode;
+		chcr_free_shash(base_hash);
+
+		memzero_explicit(&keys, sizeof(keys));
+		return 0;
+	}
+out:
+	aeadctx->enckey_len = 0;
+	memzero_explicit(&keys, sizeof(keys));
+	if (!IS_ERR(base_hash))
+		chcr_free_shash(base_hash);
+	return -EINVAL;
+}
+
+static int chcr_aead_digest_null_setkey(struct crypto_aead *authenc,
+					const u8 *key, unsigned int keylen)
+{
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc));
+	struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
+	struct crypto_authenc_keys keys;
+	int err;
+	/* it contains auth and cipher key both*/
+	unsigned int subtype;
+	int key_ctx_len = 0;
+	unsigned char ck_size = 0;
+
+	crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+	crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc)
+			      & CRYPTO_TFM_REQ_MASK);
+	err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+	if (err)
+		goto out;
+
+	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
+		goto out;
+
+	subtype = get_aead_subtype(authenc);
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
+	    subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
+		if (keys.enckeylen < CTR_RFC3686_NONCE_SIZE)
+			goto out;
+		memcpy(aeadctx->nonce, keys.enckey + (keys.enckeylen
+			- CTR_RFC3686_NONCE_SIZE), CTR_RFC3686_NONCE_SIZE);
+		keys.enckeylen -= CTR_RFC3686_NONCE_SIZE;
+	}
+	if (keys.enckeylen == AES_KEYSIZE_128) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
+	} else if (keys.enckeylen == AES_KEYSIZE_192) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
+	} else if (keys.enckeylen == AES_KEYSIZE_256) {
+		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
+	} else {
+		pr_err("Unsupported cipher key %d\n", keys.enckeylen);
+		goto out;
+	}
+	memcpy(aeadctx->key, keys.enckey, keys.enckeylen);
+	aeadctx->enckey_len = keys.enckeylen;
+	if (subtype == CRYPTO_ALG_SUB_TYPE_CBC_SHA ||
+	    subtype == CRYPTO_ALG_SUB_TYPE_CBC_NULL) {
+		get_aes_decrypt_key(actx->dec_rrkey, aeadctx->key,
+				aeadctx->enckey_len << 3);
+	}
+	key_ctx_len =  sizeof(struct _key_ctx) + roundup(keys.enckeylen, 16);
+
+	aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY, 0,
+						0, key_ctx_len >> 4);
+	actx->auth_mode = CHCR_SCMD_AUTH_MODE_NOP;
+	memzero_explicit(&keys, sizeof(keys));
+	return 0;
+out:
+	aeadctx->enckey_len = 0;
+	memzero_explicit(&keys, sizeof(keys));
+	return -EINVAL;
+}
+
+static int chcr_aead_op(struct aead_request *req,
+			int size,
+			create_wr_t create_wr_fn)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct chcr_context *ctx = a_ctx(tfm);
+	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct sk_buff *skb;
+	struct chcr_dev *cdev;
+
+	cdev = a_ctx(tfm)->dev;
+	if (!cdev) {
+		pr_err("%s : No crypto device.\n", __func__);
+		return -ENXIO;
+	}
+
+	if (chcr_inc_wrcount(cdev)) {
+	/* Detach state for CHCR means lldi or padap is freed.
+	 * We cannot increment fallback here.
+	 */
+		return chcr_aead_fallback(req, reqctx->op);
+	}
+
+	if (cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
+					reqctx->txqidx) &&
+		(!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) {
+			chcr_dec_wrcount(cdev);
+			return -ENOSPC;
+	}
+
+	if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 &&
+	    crypto_ipsec_check_assoclen(req->assoclen) != 0) {
+		pr_err("RFC4106: Invalid value of assoclen %d\n",
+		       req->assoclen);
+		return -EINVAL;
+	}
+
+	/* Form a WR from req */
+	skb = create_wr_fn(req, u_ctx->lldi.rxq_ids[reqctx->rxqidx], size);
+
+	if (IS_ERR_OR_NULL(skb)) {
+		chcr_dec_wrcount(cdev);
+		return PTR_ERR_OR_ZERO(skb);
+	}
+
+	skb->dev = u_ctx->lldi.ports[0];
+	set_wr_txq(skb, CPL_PRIORITY_DATA, reqctx->txqidx);
+	chcr_send_wr(skb);
+	return -EINPROGRESS;
+}
+
+static int chcr_aead_encrypt(struct aead_request *req)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	struct chcr_context *ctx = a_ctx(tfm);
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	reqctx->txqidx = cpu % ctx->ntxq;
+	reqctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	reqctx->verify = VERIFY_HW;
+	reqctx->op = CHCR_ENCRYPT_OP;
+
+	switch (get_aead_subtype(tfm)) {
+	case CRYPTO_ALG_SUB_TYPE_CTR_SHA:
+	case CRYPTO_ALG_SUB_TYPE_CBC_SHA:
+	case CRYPTO_ALG_SUB_TYPE_CBC_NULL:
+	case CRYPTO_ALG_SUB_TYPE_CTR_NULL:
+		return chcr_aead_op(req, 0, create_authenc_wr);
+	case CRYPTO_ALG_SUB_TYPE_AEAD_CCM:
+	case CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309:
+		return chcr_aead_op(req, 0, create_aead_ccm_wr);
+	default:
+		return chcr_aead_op(req, 0, create_gcm_wr);
+	}
+}
+
+static int chcr_aead_decrypt(struct aead_request *req)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_context *ctx = a_ctx(tfm);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx_dma(req);
+	int size;
+	unsigned int cpu;
+
+	cpu = get_cpu();
+	reqctx->txqidx = cpu % ctx->ntxq;
+	reqctx->rxqidx = cpu % ctx->nrxq;
+	put_cpu();
+
+	if (aeadctx->mayverify == VERIFY_SW) {
+		size = crypto_aead_maxauthsize(tfm);
+		reqctx->verify = VERIFY_SW;
+	} else {
+		size = 0;
+		reqctx->verify = VERIFY_HW;
+	}
+	reqctx->op = CHCR_DECRYPT_OP;
+	switch (get_aead_subtype(tfm)) {
+	case CRYPTO_ALG_SUB_TYPE_CBC_SHA:
+	case CRYPTO_ALG_SUB_TYPE_CTR_SHA:
+	case CRYPTO_ALG_SUB_TYPE_CBC_NULL:
+	case CRYPTO_ALG_SUB_TYPE_CTR_NULL:
+		return chcr_aead_op(req, size, create_authenc_wr);
+	case CRYPTO_ALG_SUB_TYPE_AEAD_CCM:
+	case CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309:
+		return chcr_aead_op(req, size, create_aead_ccm_wr);
+	default:
+		return chcr_aead_op(req, size, create_gcm_wr);
+	}
+}
+
+static struct chcr_alg_template driver_algs[] = {
+	/* AES-CBC */
+	{
+		.type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_CBC,
+		.is_registered = 0,
+		.alg.skcipher = {
+			.base.cra_name		= "cbc(aes)",
+			.base.cra_driver_name	= "cbc-aes-chcr",
+			.base.cra_blocksize	= AES_BLOCK_SIZE,
+
+			.init			= chcr_init_tfm,
+			.exit			= chcr_exit_tfm,
+			.min_keysize		= AES_MIN_KEY_SIZE,
+			.max_keysize		= AES_MAX_KEY_SIZE,
+			.ivsize			= AES_BLOCK_SIZE,
+			.setkey			= chcr_aes_cbc_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
+			}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_XTS,
+		.is_registered = 0,
+		.alg.skcipher = {
+			.base.cra_name		= "xts(aes)",
+			.base.cra_driver_name	= "xts-aes-chcr",
+			.base.cra_blocksize	= AES_BLOCK_SIZE,
+
+			.init			= chcr_init_tfm,
+			.exit			= chcr_exit_tfm,
+			.min_keysize		= 2 * AES_MIN_KEY_SIZE,
+			.max_keysize		= 2 * AES_MAX_KEY_SIZE,
+			.ivsize			= AES_BLOCK_SIZE,
+			.setkey			= chcr_aes_xts_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
+			}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_CTR,
+		.is_registered = 0,
+		.alg.skcipher = {
+			.base.cra_name		= "ctr(aes)",
+			.base.cra_driver_name	= "ctr-aes-chcr",
+			.base.cra_blocksize	= 1,
+
+			.init			= chcr_init_tfm,
+			.exit			= chcr_exit_tfm,
+			.min_keysize		= AES_MIN_KEY_SIZE,
+			.max_keysize		= AES_MAX_KEY_SIZE,
+			.ivsize			= AES_BLOCK_SIZE,
+			.setkey			= chcr_aes_ctr_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_SKCIPHER |
+			CRYPTO_ALG_SUB_TYPE_CTR_RFC3686,
+		.is_registered = 0,
+		.alg.skcipher = {
+			.base.cra_name		= "rfc3686(ctr(aes))",
+			.base.cra_driver_name	= "rfc3686-ctr-aes-chcr",
+			.base.cra_blocksize	= 1,
+
+			.init			= chcr_rfc3686_init,
+			.exit			= chcr_exit_tfm,
+			.min_keysize		= AES_MIN_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,
+			.max_keysize		= AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,
+			.ivsize			= CTR_RFC3686_IV_SIZE,
+			.setkey			= chcr_aes_rfc3686_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
+		}
+	},
+	/* SHA */
+	{
+		.type = CRYPTO_ALG_TYPE_AHASH,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA1_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "sha1",
+				.cra_driver_name = "sha1-chcr",
+				.cra_blocksize = SHA1_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AHASH,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA256_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "sha256",
+				.cra_driver_name = "sha256-chcr",
+				.cra_blocksize = SHA256_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AHASH,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA224_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "sha224",
+				.cra_driver_name = "sha224-chcr",
+				.cra_blocksize = SHA224_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AHASH,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA384_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "sha384",
+				.cra_driver_name = "sha384-chcr",
+				.cra_blocksize = SHA384_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AHASH,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA512_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "sha512",
+				.cra_driver_name = "sha512-chcr",
+				.cra_blocksize = SHA512_BLOCK_SIZE,
+			}
+		}
+	},
+	/* HMAC */
+	{
+		.type = CRYPTO_ALG_TYPE_HMAC,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA1_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "hmac(sha1)",
+				.cra_driver_name = "hmac-sha1-chcr",
+				.cra_blocksize = SHA1_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_HMAC,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA224_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "hmac(sha224)",
+				.cra_driver_name = "hmac-sha224-chcr",
+				.cra_blocksize = SHA224_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_HMAC,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA256_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "hmac(sha256)",
+				.cra_driver_name = "hmac-sha256-chcr",
+				.cra_blocksize = SHA256_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_HMAC,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA384_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "hmac(sha384)",
+				.cra_driver_name = "hmac-sha384-chcr",
+				.cra_blocksize = SHA384_BLOCK_SIZE,
+			}
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_HMAC,
+		.is_registered = 0,
+		.alg.hash = {
+			.halg.digestsize = SHA512_DIGEST_SIZE,
+			.halg.base = {
+				.cra_name = "hmac(sha512)",
+				.cra_driver_name = "hmac-sha512-chcr",
+				.cra_blocksize = SHA512_BLOCK_SIZE,
+			}
+		}
+	},
+	/* Add AEAD Algorithms */
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_GCM,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "gcm(aes)",
+				.cra_driver_name = "gcm-aes-chcr",
+				.cra_blocksize	= 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_gcm_ctx),
+			},
+			.ivsize = GCM_AES_IV_SIZE,
+			.maxauthsize = GHASH_DIGEST_SIZE,
+			.setkey = chcr_gcm_setkey,
+			.setauthsize = chcr_gcm_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "rfc4106(gcm(aes))",
+				.cra_driver_name = "rfc4106-gcm-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY + 1,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_gcm_ctx),
+
+			},
+			.ivsize = GCM_RFC4106_IV_SIZE,
+			.maxauthsize	= GHASH_DIGEST_SIZE,
+			.setkey = chcr_gcm_setkey,
+			.setauthsize	= chcr_4106_4309_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_CCM,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "ccm(aes)",
+				.cra_driver_name = "ccm-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx),
+
+			},
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize	= GHASH_DIGEST_SIZE,
+			.setkey = chcr_aead_ccm_setkey,
+			.setauthsize	= chcr_ccm_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "rfc4309(ccm(aes))",
+				.cra_driver_name = "rfc4309-ccm-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY + 1,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx),
+
+			},
+			.ivsize = 8,
+			.maxauthsize	= GHASH_DIGEST_SIZE,
+			.setkey = chcr_aead_rfc4309_setkey,
+			.setauthsize = chcr_4106_4309_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha1),cbc(aes))",
+				.cra_driver_name =
+					"authenc-hmac-sha1-cbc-aes-chcr",
+				.cra_blocksize	 = AES_BLOCK_SIZE,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize = SHA1_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+
+				.cra_name = "authenc(hmac(sha256),cbc(aes))",
+				.cra_driver_name =
+					"authenc-hmac-sha256-cbc-aes-chcr",
+				.cra_blocksize	 = AES_BLOCK_SIZE,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize	= SHA256_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha224),cbc(aes))",
+				.cra_driver_name =
+					"authenc-hmac-sha224-cbc-aes-chcr",
+				.cra_blocksize	 = AES_BLOCK_SIZE,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+			},
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize = SHA224_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha384),cbc(aes))",
+				.cra_driver_name =
+					"authenc-hmac-sha384-cbc-aes-chcr",
+				.cra_blocksize	 = AES_BLOCK_SIZE,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize = SHA384_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha512),cbc(aes))",
+				.cra_driver_name =
+					"authenc-hmac-sha512-cbc-aes-chcr",
+				.cra_blocksize	 = AES_BLOCK_SIZE,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize = SHA512_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CBC_NULL,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(digest_null,cbc(aes))",
+				.cra_driver_name =
+					"authenc-digest_null-cbc-aes-chcr",
+				.cra_blocksize	 = AES_BLOCK_SIZE,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize  = AES_BLOCK_SIZE,
+			.maxauthsize = 0,
+			.setkey  = chcr_aead_digest_null_setkey,
+			.setauthsize = chcr_authenc_null_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha1),rfc3686(ctr(aes)))",
+				.cra_driver_name =
+				"authenc-hmac-sha1-rfc3686-ctr-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = CTR_RFC3686_IV_SIZE,
+			.maxauthsize = SHA1_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+
+				.cra_name = "authenc(hmac(sha256),rfc3686(ctr(aes)))",
+				.cra_driver_name =
+				"authenc-hmac-sha256-rfc3686-ctr-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = CTR_RFC3686_IV_SIZE,
+			.maxauthsize	= SHA256_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha224),rfc3686(ctr(aes)))",
+				.cra_driver_name =
+				"authenc-hmac-sha224-rfc3686-ctr-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+			},
+			.ivsize = CTR_RFC3686_IV_SIZE,
+			.maxauthsize = SHA224_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha384),rfc3686(ctr(aes)))",
+				.cra_driver_name =
+				"authenc-hmac-sha384-rfc3686-ctr-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = CTR_RFC3686_IV_SIZE,
+			.maxauthsize = SHA384_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_SHA,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(hmac(sha512),rfc3686(ctr(aes)))",
+				.cra_driver_name =
+				"authenc-hmac-sha512-rfc3686-ctr-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize = CTR_RFC3686_IV_SIZE,
+			.maxauthsize = SHA512_DIGEST_SIZE,
+			.setkey = chcr_authenc_setkey,
+			.setauthsize = chcr_authenc_setauthsize,
+		}
+	},
+	{
+		.type = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_SUB_TYPE_CTR_NULL,
+		.is_registered = 0,
+		.alg.aead = {
+			.base = {
+				.cra_name = "authenc(digest_null,rfc3686(ctr(aes)))",
+				.cra_driver_name =
+				"authenc-digest_null-rfc3686-ctr-aes-chcr",
+				.cra_blocksize	 = 1,
+				.cra_priority = CHCR_AEAD_PRIORITY,
+				.cra_ctxsize =	sizeof(struct chcr_context) +
+						sizeof(struct chcr_aead_ctx) +
+						sizeof(struct chcr_authenc_ctx),
+
+			},
+			.ivsize  = CTR_RFC3686_IV_SIZE,
+			.maxauthsize = 0,
+			.setkey  = chcr_aead_digest_null_setkey,
+			.setauthsize = chcr_authenc_null_setauthsize,
+		}
+	},
+};
+
+/*
+ *	chcr_unregister_alg - Deregister crypto algorithms with
+ *	kernel framework.
+ */
+static int chcr_unregister_alg(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
+		switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) {
+		case CRYPTO_ALG_TYPE_SKCIPHER:
+			if (driver_algs[i].is_registered && refcount_read(
+			    &driver_algs[i].alg.skcipher.base.cra_refcnt)
+			    == 1) {
+				crypto_unregister_skcipher(
+						&driver_algs[i].alg.skcipher);
+				driver_algs[i].is_registered = 0;
+			}
+			break;
+		case CRYPTO_ALG_TYPE_AEAD:
+			if (driver_algs[i].is_registered && refcount_read(
+			    &driver_algs[i].alg.aead.base.cra_refcnt) == 1) {
+				crypto_unregister_aead(
+						&driver_algs[i].alg.aead);
+				driver_algs[i].is_registered = 0;
+			}
+			break;
+		case CRYPTO_ALG_TYPE_AHASH:
+			if (driver_algs[i].is_registered && refcount_read(
+			    &driver_algs[i].alg.hash.halg.base.cra_refcnt)
+			    == 1) {
+				crypto_unregister_ahash(
+						&driver_algs[i].alg.hash);
+				driver_algs[i].is_registered = 0;
+			}
+			break;
+		}
+	}
+	return 0;
+}
+
+#define SZ_AHASH_CTX sizeof(struct chcr_context)
+#define SZ_AHASH_H_CTX (sizeof(struct chcr_context) + sizeof(struct hmac_ctx))
+#define SZ_AHASH_REQ_CTX sizeof(struct chcr_ahash_req_ctx)
+
+/*
+ *	chcr_register_alg - Register crypto algorithms with kernel framework.
+ */
+static int chcr_register_alg(void)
+{
+	struct crypto_alg ai;
+	struct ahash_alg *a_hash;
+	int err = 0, i;
+	char *name = NULL;
+
+	for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
+		if (driver_algs[i].is_registered)
+			continue;
+		switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) {
+		case CRYPTO_ALG_TYPE_SKCIPHER:
+			driver_algs[i].alg.skcipher.base.cra_priority =
+				CHCR_CRA_PRIORITY;
+			driver_algs[i].alg.skcipher.base.cra_module = THIS_MODULE;
+			driver_algs[i].alg.skcipher.base.cra_flags =
+				CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC |
+				CRYPTO_ALG_ALLOCATES_MEMORY |
+				CRYPTO_ALG_NEED_FALLBACK;
+			driver_algs[i].alg.skcipher.base.cra_ctxsize =
+				sizeof(struct chcr_context) +
+				sizeof(struct ablk_ctx);
+			driver_algs[i].alg.skcipher.base.cra_alignmask = 0;
+
+			err = crypto_register_skcipher(&driver_algs[i].alg.skcipher);
+			name = driver_algs[i].alg.skcipher.base.cra_driver_name;
+			break;
+		case CRYPTO_ALG_TYPE_AEAD:
+			driver_algs[i].alg.aead.base.cra_flags =
+				CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK |
+				CRYPTO_ALG_ALLOCATES_MEMORY;
+			driver_algs[i].alg.aead.encrypt = chcr_aead_encrypt;
+			driver_algs[i].alg.aead.decrypt = chcr_aead_decrypt;
+			driver_algs[i].alg.aead.init = chcr_aead_cra_init;
+			driver_algs[i].alg.aead.exit = chcr_aead_cra_exit;
+			driver_algs[i].alg.aead.base.cra_module = THIS_MODULE;
+			err = crypto_register_aead(&driver_algs[i].alg.aead);
+			name = driver_algs[i].alg.aead.base.cra_driver_name;
+			break;
+		case CRYPTO_ALG_TYPE_AHASH:
+			a_hash = &driver_algs[i].alg.hash;
+			a_hash->update = chcr_ahash_update;
+			a_hash->final = chcr_ahash_final;
+			a_hash->finup = chcr_ahash_finup;
+			a_hash->digest = chcr_ahash_digest;
+			a_hash->export = chcr_ahash_export;
+			a_hash->import = chcr_ahash_import;
+			a_hash->halg.statesize = SZ_AHASH_REQ_CTX;
+			a_hash->halg.base.cra_priority = CHCR_CRA_PRIORITY;
+			a_hash->halg.base.cra_module = THIS_MODULE;
+			a_hash->halg.base.cra_flags =
+				CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY;
+			a_hash->halg.base.cra_alignmask = 0;
+			a_hash->halg.base.cra_exit = NULL;
+
+			if (driver_algs[i].type == CRYPTO_ALG_TYPE_HMAC) {
+				a_hash->halg.base.cra_init = chcr_hmac_cra_init;
+				a_hash->halg.base.cra_exit = chcr_hmac_cra_exit;
+				a_hash->init = chcr_hmac_init;
+				a_hash->setkey = chcr_ahash_setkey;
+				a_hash->halg.base.cra_ctxsize = SZ_AHASH_H_CTX;
+			} else {
+				a_hash->init = chcr_sha_init;
+				a_hash->halg.base.cra_ctxsize = SZ_AHASH_CTX;
+				a_hash->halg.base.cra_init = chcr_sha_cra_init;
+			}
+			err = crypto_register_ahash(&driver_algs[i].alg.hash);
+			ai = driver_algs[i].alg.hash.halg.base;
+			name = ai.cra_driver_name;
+			break;
+		}
+		if (err) {
+			pr_err("%s : Algorithm registration failed\n", name);
+			goto register_err;
+		} else {
+			driver_algs[i].is_registered = 1;
+		}
+	}
+	return 0;
+
+register_err:
+	chcr_unregister_alg();
+	return err;
+}
+
+/*
+ *	start_crypto - Register the crypto algorithms.
+ *	This should called once when the first device comesup. After this
+ *	kernel will start calling driver APIs for crypto operations.
+ */
+int start_crypto(void)
+{
+	return chcr_register_alg();
+}
+
+/*
+ *	stop_crypto - Deregister all the crypto algorithms with kernel.
+ *	This should be called once when the last device goes down. After this
+ *	kernel will not call the driver API for crypto operations.
+ */
+int stop_crypto(void)
+{
+	chcr_unregister_alg();
+	return 0;
+}