Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 787 insertions, 0 deletions

diff --git a/drivers/crypto/qce/aead.c b/drivers/crypto/qce/aead.c
new file mode 100644
index 000000000..a9642c67f
--- /dev/null
+++ b/drivers/crypto/qce/aead.c
@@ -0,0 +1,787 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright (C) 2021, Linaro Limited. All rights reserved.
+ */
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <crypto/gcm.h>
+#include <crypto/authenc.h>
+#include <crypto/internal/aead.h>
+#include <crypto/sha2.h>
+#include <crypto/scatterwalk.h>
+#include "aead.h"
+
+#define CCM_NONCE_ADATA_SHIFT		6
+#define CCM_NONCE_AUTHSIZE_SHIFT	3
+#define MAX_CCM_ADATA_HEADER_LEN        6
+
+static LIST_HEAD(aead_algs);
+
+static void qce_aead_done(void *data)
+{
+	struct crypto_async_request *async_req = data;
+	struct aead_request *req = aead_request_cast(async_req);
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct qce_aead_ctx *ctx = crypto_tfm_ctx(async_req->tfm);
+	struct qce_alg_template *tmpl = to_aead_tmpl(crypto_aead_reqtfm(req));
+	struct qce_device *qce = tmpl->qce;
+	struct qce_result_dump *result_buf = qce->dma.result_buf;
+	enum dma_data_direction dir_src, dir_dst;
+	bool diff_dst;
+	int error;
+	u32 status;
+	unsigned int totallen;
+	unsigned char tag[SHA256_DIGEST_SIZE] = {0};
+
+	diff_dst = (req->src != req->dst) ? true : false;
+	dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
+	dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL;
+
+	error = qce_dma_terminate_all(&qce->dma);
+	if (error)
+		dev_dbg(qce->dev, "aead dma termination error (%d)\n",
+			error);
+	if (diff_dst)
+		dma_unmap_sg(qce->dev, rctx->src_sg, rctx->src_nents, dir_src);
+
+	dma_unmap_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);
+
+	if (IS_CCM(rctx->flags)) {
+		if (req->assoclen) {
+			sg_free_table(&rctx->src_tbl);
+			if (diff_dst)
+				sg_free_table(&rctx->dst_tbl);
+		} else {
+			if (!(IS_DECRYPT(rctx->flags) && !diff_dst))
+				sg_free_table(&rctx->dst_tbl);
+		}
+	} else {
+		sg_free_table(&rctx->dst_tbl);
+	}
+
+	error = qce_check_status(qce, &status);
+	if (error < 0 && (error != -EBADMSG))
+		dev_err(qce->dev, "aead operation error (%x)\n", status);
+
+	if (IS_ENCRYPT(rctx->flags)) {
+		totallen = req->cryptlen + req->assoclen;
+		if (IS_CCM(rctx->flags))
+			scatterwalk_map_and_copy(rctx->ccmresult_buf, req->dst,
+						 totallen, ctx->authsize, 1);
+		else
+			scatterwalk_map_and_copy(result_buf->auth_iv, req->dst,
+						 totallen, ctx->authsize, 1);
+
+	} else if (!IS_CCM(rctx->flags)) {
+		totallen = req->cryptlen + req->assoclen - ctx->authsize;
+		scatterwalk_map_and_copy(tag, req->src, totallen, ctx->authsize, 0);
+		if (memcmp(result_buf->auth_iv, tag, ctx->authsize)) {
+			pr_err("Bad message error\n");
+			error = -EBADMSG;
+		}
+	}
+
+	qce->async_req_done(qce, error);
+}
+
+static struct scatterlist *
+qce_aead_prepare_result_buf(struct sg_table *tbl, struct aead_request *req)
+{
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct qce_alg_template *tmpl = to_aead_tmpl(crypto_aead_reqtfm(req));
+	struct qce_device *qce = tmpl->qce;
+
+	sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ);
+	return qce_sgtable_add(tbl, &rctx->result_sg, QCE_RESULT_BUF_SZ);
+}
+
+static struct scatterlist *
+qce_aead_prepare_ccm_result_buf(struct sg_table *tbl, struct aead_request *req)
+{
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+
+	sg_init_one(&rctx->result_sg, rctx->ccmresult_buf, QCE_BAM_BURST_SIZE);
+	return qce_sgtable_add(tbl, &rctx->result_sg, QCE_BAM_BURST_SIZE);
+}
+
+static struct scatterlist *
+qce_aead_prepare_dst_buf(struct aead_request *req)
+{
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct qce_alg_template *tmpl = to_aead_tmpl(crypto_aead_reqtfm(req));
+	struct qce_device *qce = tmpl->qce;
+	struct scatterlist *sg, *msg_sg, __sg[2];
+	gfp_t gfp;
+	unsigned int assoclen = req->assoclen;
+	unsigned int totallen;
+	int ret;
+
+	totallen = rctx->cryptlen + assoclen;
+	rctx->dst_nents = sg_nents_for_len(req->dst, totallen);
+	if (rctx->dst_nents < 0) {
+		dev_err(qce->dev, "Invalid numbers of dst SG.\n");
+		return ERR_PTR(-EINVAL);
+	}
+	if (IS_CCM(rctx->flags))
+		rctx->dst_nents += 2;
+	else
+		rctx->dst_nents += 1;
+
+	gfp = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
+						GFP_KERNEL : GFP_ATOMIC;
+	ret = sg_alloc_table(&rctx->dst_tbl, rctx->dst_nents, gfp);
+	if (ret)
+		return ERR_PTR(ret);
+
+	if (IS_CCM(rctx->flags) && assoclen) {
+		/* Get the dst buffer */
+		msg_sg = scatterwalk_ffwd(__sg, req->dst, assoclen);
+
+		sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->adata_sg,
+				     rctx->assoclen);
+		if (IS_ERR(sg))
+			goto dst_tbl_free;
+		/* dst buffer */
+		sg = qce_sgtable_add(&rctx->dst_tbl, msg_sg, rctx->cryptlen);
+		if (IS_ERR(sg))
+			goto dst_tbl_free;
+		totallen = rctx->cryptlen + rctx->assoclen;
+	} else {
+		if (totallen) {
+			sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, totallen);
+			if (IS_ERR(sg))
+				goto dst_tbl_free;
+		}
+	}
+	if (IS_CCM(rctx->flags))
+		sg = qce_aead_prepare_ccm_result_buf(&rctx->dst_tbl, req);
+	else
+		sg = qce_aead_prepare_result_buf(&rctx->dst_tbl, req);
+
+	if (IS_ERR(sg))
+		goto dst_tbl_free;
+
+	sg_mark_end(sg);
+	rctx->dst_sg = rctx->dst_tbl.sgl;
+	rctx->dst_nents = sg_nents_for_len(rctx->dst_sg, totallen) + 1;
+
+	return sg;
+
+dst_tbl_free:
+	sg_free_table(&rctx->dst_tbl);
+	return sg;
+}
+
+static int
+qce_aead_ccm_prepare_buf_assoclen(struct aead_request *req)
+{
+	struct scatterlist *sg, *msg_sg, __sg[2];
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	unsigned int assoclen = rctx->assoclen;
+	unsigned int adata_header_len, cryptlen, totallen;
+	gfp_t gfp;
+	bool diff_dst;
+	int ret;
+
+	if (IS_DECRYPT(rctx->flags))
+		cryptlen = rctx->cryptlen + ctx->authsize;
+	else
+		cryptlen = rctx->cryptlen;
+	totallen = cryptlen + req->assoclen;
+
+	/* Get the msg */
+	msg_sg = scatterwalk_ffwd(__sg, req->src, req->assoclen);
+
+	rctx->adata = kzalloc(ALIGN(assoclen + MAX_CCM_ADATA_HEADER_LEN, 16) *
+			       sizeof(unsigned char), GFP_ATOMIC);
+	if (!rctx->adata)
+		return -ENOMEM;
+
+	/*
+	 * Format associated data (RFC3610 and NIST 800-38C)
+	 * Even though specification allows for AAD to be up to 2^64 - 1 bytes,
+	 * the assoclen field in aead_request is unsigned int and thus limits
+	 * the AAD to be up to 2^32 - 1 bytes. So we handle only two scenarios
+	 * while forming the header for AAD.
+	 */
+	if (assoclen < 0xff00) {
+		adata_header_len = 2;
+		*(__be16 *)rctx->adata = cpu_to_be16(assoclen);
+	} else {
+		adata_header_len = 6;
+		*(__be16 *)rctx->adata = cpu_to_be16(0xfffe);
+		*(__be32 *)(rctx->adata + 2) = cpu_to_be32(assoclen);
+	}
+
+	/* Copy the associated data */
+	if (sg_copy_to_buffer(req->src, sg_nents_for_len(req->src, assoclen),
+			      rctx->adata + adata_header_len,
+			      assoclen) != assoclen)
+		return -EINVAL;
+
+	/* Pad associated data to block size */
+	rctx->assoclen = ALIGN(assoclen + adata_header_len, 16);
+
+	diff_dst = (req->src != req->dst) ? true : false;
+
+	if (diff_dst)
+		rctx->src_nents = sg_nents_for_len(req->src, totallen) + 1;
+	else
+		rctx->src_nents = sg_nents_for_len(req->src, totallen) + 2;
+
+	gfp = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL : GFP_ATOMIC;
+	ret = sg_alloc_table(&rctx->src_tbl, rctx->src_nents, gfp);
+	if (ret)
+		return ret;
+
+	/* Associated Data */
+	sg_init_one(&rctx->adata_sg, rctx->adata, rctx->assoclen);
+	sg = qce_sgtable_add(&rctx->src_tbl, &rctx->adata_sg,
+			     rctx->assoclen);
+	if (IS_ERR(sg)) {
+		ret = PTR_ERR(sg);
+		goto err_free;
+	}
+	/* src msg */
+	sg = qce_sgtable_add(&rctx->src_tbl, msg_sg, cryptlen);
+	if (IS_ERR(sg)) {
+		ret = PTR_ERR(sg);
+		goto err_free;
+	}
+	if (!diff_dst) {
+		/*
+		 * For decrypt, when src and dst buffers are same, there is already space
+		 * in the buffer for padded 0's which is output in lieu of
+		 * the MAC that is input. So skip the below.
+		 */
+		if (!IS_DECRYPT(rctx->flags)) {
+			sg = qce_aead_prepare_ccm_result_buf(&rctx->src_tbl, req);
+			if (IS_ERR(sg)) {
+				ret = PTR_ERR(sg);
+				goto err_free;
+			}
+		}
+	}
+	sg_mark_end(sg);
+	rctx->src_sg = rctx->src_tbl.sgl;
+	totallen = cryptlen + rctx->assoclen;
+	rctx->src_nents = sg_nents_for_len(rctx->src_sg, totallen);
+
+	if (diff_dst) {
+		sg = qce_aead_prepare_dst_buf(req);
+		if (IS_ERR(sg)) {
+			ret = PTR_ERR(sg);
+			goto err_free;
+		}
+	} else {
+		if (IS_ENCRYPT(rctx->flags))
+			rctx->dst_nents = rctx->src_nents + 1;
+		else
+			rctx->dst_nents = rctx->src_nents;
+		rctx->dst_sg = rctx->src_sg;
+	}
+
+	return 0;
+err_free:
+	sg_free_table(&rctx->src_tbl);
+	return ret;
+}
+
+static int qce_aead_prepare_buf(struct aead_request *req)
+{
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct qce_alg_template *tmpl = to_aead_tmpl(crypto_aead_reqtfm(req));
+	struct qce_device *qce = tmpl->qce;
+	struct scatterlist *sg;
+	bool diff_dst = (req->src != req->dst) ? true : false;
+	unsigned int totallen;
+
+	totallen = rctx->cryptlen + rctx->assoclen;
+
+	sg = qce_aead_prepare_dst_buf(req);
+	if (IS_ERR(sg))
+		return PTR_ERR(sg);
+	if (diff_dst) {
+		rctx->src_nents = sg_nents_for_len(req->src, totallen);
+		if (rctx->src_nents < 0) {
+			dev_err(qce->dev, "Invalid numbers of src SG.\n");
+			return -EINVAL;
+		}
+		rctx->src_sg = req->src;
+	} else {
+		rctx->src_nents = rctx->dst_nents - 1;
+		rctx->src_sg = rctx->dst_sg;
+	}
+	return 0;
+}
+
+static int qce_aead_ccm_prepare_buf(struct aead_request *req)
+{
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct scatterlist *sg;
+	bool diff_dst = (req->src != req->dst) ? true : false;
+	unsigned int cryptlen;
+
+	if (rctx->assoclen)
+		return qce_aead_ccm_prepare_buf_assoclen(req);
+
+	if (IS_ENCRYPT(rctx->flags))
+		return qce_aead_prepare_buf(req);
+
+	cryptlen = rctx->cryptlen + ctx->authsize;
+	if (diff_dst) {
+		rctx->src_nents = sg_nents_for_len(req->src, cryptlen);
+		rctx->src_sg = req->src;
+		sg = qce_aead_prepare_dst_buf(req);
+		if (IS_ERR(sg))
+			return PTR_ERR(sg);
+	} else {
+		rctx->src_nents = sg_nents_for_len(req->src, cryptlen);
+		rctx->src_sg = req->src;
+		rctx->dst_nents = rctx->src_nents;
+		rctx->dst_sg = rctx->src_sg;
+	}
+
+	return 0;
+}
+
+static int qce_aead_create_ccm_nonce(struct qce_aead_reqctx *rctx, struct qce_aead_ctx *ctx)
+{
+	unsigned int msglen_size, ivsize;
+	u8 msg_len[4];
+	int i;
+
+	if (!rctx || !rctx->iv)
+		return -EINVAL;
+
+	msglen_size = rctx->iv[0] + 1;
+
+	/* Verify that msg len size is valid */
+	if (msglen_size < 2 || msglen_size > 8)
+		return -EINVAL;
+
+	ivsize = rctx->ivsize;
+
+	/*
+	 * Clear the msglen bytes in IV.
+	 * Else the h/w engine and nonce will use any stray value pending there.
+	 */
+	if (!IS_CCM_RFC4309(rctx->flags)) {
+		for (i = 0; i < msglen_size; i++)
+			rctx->iv[ivsize - i - 1] = 0;
+	}
+
+	/*
+	 * The crypto framework encodes cryptlen as unsigned int. Thus, even though
+	 * spec allows for upto 8 bytes to encode msg_len only 4 bytes are needed.
+	 */
+	if (msglen_size > 4)
+		msglen_size = 4;
+
+	memcpy(&msg_len[0], &rctx->cryptlen, 4);
+
+	memcpy(&rctx->ccm_nonce[0], rctx->iv, rctx->ivsize);
+	if (rctx->assoclen)
+		rctx->ccm_nonce[0] |= 1 << CCM_NONCE_ADATA_SHIFT;
+	rctx->ccm_nonce[0] |= ((ctx->authsize - 2) / 2) <<
+				CCM_NONCE_AUTHSIZE_SHIFT;
+	for (i = 0; i < msglen_size; i++)
+		rctx->ccm_nonce[QCE_MAX_NONCE - i - 1] = msg_len[i];
+
+	return 0;
+}
+
+static int
+qce_aead_async_req_handle(struct crypto_async_request *async_req)
+{
+	struct aead_request *req = aead_request_cast(async_req);
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct qce_aead_ctx *ctx = crypto_tfm_ctx(async_req->tfm);
+	struct qce_alg_template *tmpl = to_aead_tmpl(crypto_aead_reqtfm(req));
+	struct qce_device *qce = tmpl->qce;
+	enum dma_data_direction dir_src, dir_dst;
+	bool diff_dst;
+	int dst_nents, src_nents, ret;
+
+	if (IS_CCM_RFC4309(rctx->flags)) {
+		memset(rctx->ccm_rfc4309_iv, 0, QCE_MAX_IV_SIZE);
+		rctx->ccm_rfc4309_iv[0] = 3;
+		memcpy(&rctx->ccm_rfc4309_iv[1], ctx->ccm4309_salt, QCE_CCM4309_SALT_SIZE);
+		memcpy(&rctx->ccm_rfc4309_iv[4], req->iv, 8);
+		rctx->iv = rctx->ccm_rfc4309_iv;
+		rctx->ivsize = AES_BLOCK_SIZE;
+	} else {
+		rctx->iv = req->iv;
+		rctx->ivsize = crypto_aead_ivsize(tfm);
+	}
+	if (IS_CCM_RFC4309(rctx->flags))
+		rctx->assoclen = req->assoclen - 8;
+	else
+		rctx->assoclen = req->assoclen;
+
+	diff_dst = (req->src != req->dst) ? true : false;
+	dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
+	dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL;
+
+	if (IS_CCM(rctx->flags)) {
+		ret = qce_aead_create_ccm_nonce(rctx, ctx);
+		if (ret)
+			return ret;
+	}
+	if (IS_CCM(rctx->flags))
+		ret = qce_aead_ccm_prepare_buf(req);
+	else
+		ret = qce_aead_prepare_buf(req);
+
+	if (ret)
+		return ret;
+	dst_nents = dma_map_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);
+	if (!dst_nents) {
+		ret = -EIO;
+		goto error_free;
+	}
+
+	if (diff_dst) {
+		src_nents = dma_map_sg(qce->dev, rctx->src_sg, rctx->src_nents, dir_src);
+		if (src_nents < 0) {
+			ret = src_nents;
+			goto error_unmap_dst;
+		}
+	} else {
+		if (IS_CCM(rctx->flags) && IS_DECRYPT(rctx->flags))
+			src_nents = dst_nents;
+		else
+			src_nents = dst_nents - 1;
+	}
+
+	ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, src_nents, rctx->dst_sg, dst_nents,
+			       qce_aead_done, async_req);
+	if (ret)
+		goto error_unmap_src;
+
+	qce_dma_issue_pending(&qce->dma);
+
+	ret = qce_start(async_req, tmpl->crypto_alg_type);
+	if (ret)
+		goto error_terminate;
+
+	return 0;
+
+error_terminate:
+	qce_dma_terminate_all(&qce->dma);
+error_unmap_src:
+	if (diff_dst)
+		dma_unmap_sg(qce->dev, req->src, rctx->src_nents, dir_src);
+error_unmap_dst:
+	dma_unmap_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);
+error_free:
+	if (IS_CCM(rctx->flags) && rctx->assoclen) {
+		sg_free_table(&rctx->src_tbl);
+		if (diff_dst)
+			sg_free_table(&rctx->dst_tbl);
+	} else {
+		sg_free_table(&rctx->dst_tbl);
+	}
+	return ret;
+}
+
+static int qce_aead_crypt(struct aead_request *req, int encrypt)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct qce_aead_reqctx *rctx = aead_request_ctx_dma(req);
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct qce_alg_template *tmpl = to_aead_tmpl(tfm);
+	unsigned int blocksize = crypto_aead_blocksize(tfm);
+
+	rctx->flags  = tmpl->alg_flags;
+	rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT;
+
+	if (encrypt)
+		rctx->cryptlen = req->cryptlen;
+	else
+		rctx->cryptlen = req->cryptlen - ctx->authsize;
+
+	/* CE does not handle 0 length messages */
+	if (!rctx->cryptlen) {
+		if (!(IS_CCM(rctx->flags) && IS_DECRYPT(rctx->flags)))
+			ctx->need_fallback = true;
+	}
+
+	/* If fallback is needed, schedule and exit */
+	if (ctx->need_fallback) {
+		/* Reset need_fallback in case the same ctx is used for another transaction */
+		ctx->need_fallback = false;
+
+		aead_request_set_tfm(&rctx->fallback_req, ctx->fallback);
+		aead_request_set_callback(&rctx->fallback_req, req->base.flags,
+					  req->base.complete, req->base.data);
+		aead_request_set_crypt(&rctx->fallback_req, req->src,
+				       req->dst, req->cryptlen, req->iv);
+		aead_request_set_ad(&rctx->fallback_req, req->assoclen);
+
+		return encrypt ? crypto_aead_encrypt(&rctx->fallback_req) :
+				 crypto_aead_decrypt(&rctx->fallback_req);
+	}
+
+	/*
+	 * CBC algorithms require message lengths to be
+	 * multiples of block size.
+	 */
+	if (IS_CBC(rctx->flags) && !IS_ALIGNED(rctx->cryptlen, blocksize))
+		return -EINVAL;
+
+	/* RFC4309 supported AAD size 16 bytes/20 bytes */
+	if (IS_CCM_RFC4309(rctx->flags))
+		if (crypto_ipsec_check_assoclen(req->assoclen))
+			return -EINVAL;
+
+	return tmpl->qce->async_req_enqueue(tmpl->qce, &req->base);
+}
+
+static int qce_aead_encrypt(struct aead_request *req)
+{
+	return qce_aead_crypt(req, 1);
+}
+
+static int qce_aead_decrypt(struct aead_request *req)
+{
+	return qce_aead_crypt(req, 0);
+}
+
+static int qce_aead_ccm_setkey(struct crypto_aead *tfm, const u8 *key,
+			       unsigned int keylen)
+{
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	unsigned long flags = to_aead_tmpl(tfm)->alg_flags;
+
+	if (IS_CCM_RFC4309(flags)) {
+		if (keylen < QCE_CCM4309_SALT_SIZE)
+			return -EINVAL;
+		keylen -= QCE_CCM4309_SALT_SIZE;
+		memcpy(ctx->ccm4309_salt, key + keylen, QCE_CCM4309_SALT_SIZE);
+	}
+
+	if (keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_256 && keylen != AES_KEYSIZE_192)
+		return -EINVAL;
+
+	ctx->enc_keylen = keylen;
+	ctx->auth_keylen = keylen;
+
+	memcpy(ctx->enc_key, key, keylen);
+	memcpy(ctx->auth_key, key, keylen);
+
+	if (keylen == AES_KEYSIZE_192)
+		ctx->need_fallback = true;
+
+	return IS_CCM_RFC4309(flags) ?
+		crypto_aead_setkey(ctx->fallback, key, keylen + QCE_CCM4309_SALT_SIZE) :
+		crypto_aead_setkey(ctx->fallback, key, keylen);
+}
+
+static int qce_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
+{
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct crypto_authenc_keys authenc_keys;
+	unsigned long flags = to_aead_tmpl(tfm)->alg_flags;
+	int err;
+
+	err = crypto_authenc_extractkeys(&authenc_keys, key, keylen);
+	if (err)
+		return err;
+
+	if (authenc_keys.enckeylen > QCE_MAX_KEY_SIZE ||
+	    authenc_keys.authkeylen > QCE_MAX_KEY_SIZE)
+		return -EINVAL;
+
+	if (IS_AES(flags)) {
+		/* No random key sizes */
+		if (authenc_keys.enckeylen != AES_KEYSIZE_128 &&
+		    authenc_keys.enckeylen != AES_KEYSIZE_192 &&
+		    authenc_keys.enckeylen != AES_KEYSIZE_256)
+			return -EINVAL;
+		if (authenc_keys.enckeylen == AES_KEYSIZE_192)
+			ctx->need_fallback = true;
+	}
+
+	ctx->enc_keylen = authenc_keys.enckeylen;
+	ctx->auth_keylen = authenc_keys.authkeylen;
+
+	memcpy(ctx->enc_key, authenc_keys.enckey, authenc_keys.enckeylen);
+
+	memcpy_and_pad(ctx->auth_key, sizeof(ctx->auth_key),
+		       authenc_keys.authkey, authenc_keys.authkeylen, 0);
+
+	return crypto_aead_setkey(ctx->fallback, key, keylen);
+}
+
+static int qce_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
+{
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	unsigned long flags = to_aead_tmpl(tfm)->alg_flags;
+
+	if (IS_CCM(flags)) {
+		if (authsize < 4 || authsize > 16 || authsize % 2)
+			return -EINVAL;
+		if (IS_CCM_RFC4309(flags) && (authsize < 8 || authsize % 4))
+			return -EINVAL;
+	}
+	ctx->authsize = authsize;
+
+	return crypto_aead_setauthsize(ctx->fallback, authsize);
+}
+
+static int qce_aead_init(struct crypto_aead *tfm)
+{
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+
+	ctx->need_fallback = false;
+	ctx->fallback = crypto_alloc_aead(crypto_tfm_alg_name(&tfm->base),
+					  0, CRYPTO_ALG_NEED_FALLBACK);
+
+	if (IS_ERR(ctx->fallback))
+		return PTR_ERR(ctx->fallback);
+
+	crypto_aead_set_reqsize_dma(tfm, sizeof(struct qce_aead_reqctx) +
+					 crypto_aead_reqsize(ctx->fallback));
+	return 0;
+}
+
+static void qce_aead_exit(struct crypto_aead *tfm)
+{
+	struct qce_aead_ctx *ctx = crypto_aead_ctx(tfm);
+
+	crypto_free_aead(ctx->fallback);
+}
+
+struct qce_aead_def {
+	unsigned long flags;
+	const char *name;
+	const char *drv_name;
+	unsigned int blocksize;
+	unsigned int chunksize;
+	unsigned int ivsize;
+	unsigned int maxauthsize;
+};
+
+static const struct qce_aead_def aead_def[] = {
+	{
+		.flags          =  QCE_ALG_AES | QCE_MODE_CBC | QCE_HASH_SHA256_HMAC,
+		.name           = "authenc(hmac(sha256),cbc(aes))",
+		.drv_name       = "authenc-hmac-sha256-cbc-aes-qce",
+		.blocksize      = AES_BLOCK_SIZE,
+		.ivsize         = AES_BLOCK_SIZE,
+		.maxauthsize	= SHA256_DIGEST_SIZE,
+	},
+	{
+		.flags          =  QCE_ALG_AES | QCE_MODE_CCM,
+		.name           = "ccm(aes)",
+		.drv_name       = "ccm-aes-qce",
+		.blocksize	= 1,
+		.ivsize         = AES_BLOCK_SIZE,
+		.maxauthsize	= AES_BLOCK_SIZE,
+	},
+	{
+		.flags          =  QCE_ALG_AES | QCE_MODE_CCM | QCE_MODE_CCM_RFC4309,
+		.name           = "rfc4309(ccm(aes))",
+		.drv_name       = "rfc4309-ccm-aes-qce",
+		.blocksize	= 1,
+		.ivsize         = 8,
+		.maxauthsize	= AES_BLOCK_SIZE,
+	},
+};
+
+static int qce_aead_register_one(const struct qce_aead_def *def, struct qce_device *qce)
+{
+	struct qce_alg_template *tmpl;
+	struct aead_alg *alg;
+	int ret;
+
+	tmpl = kzalloc_obj(*tmpl);
+	if (!tmpl)
+		return -ENOMEM;
+
+	alg = &tmpl->alg.aead;
+
+	strscpy(alg->base.cra_name, def->name);
+	strscpy(alg->base.cra_driver_name, def->drv_name);
+
+	alg->base.cra_blocksize		= def->blocksize;
+	alg->chunksize			= def->chunksize;
+	alg->ivsize			= def->ivsize;
+	alg->maxauthsize		= def->maxauthsize;
+	if (IS_CCM(def->flags))
+		alg->setkey		= qce_aead_ccm_setkey;
+	else
+		alg->setkey		= qce_aead_setkey;
+	alg->setauthsize		= qce_aead_setauthsize;
+	alg->encrypt			= qce_aead_encrypt;
+	alg->decrypt			= qce_aead_decrypt;
+	alg->init			= qce_aead_init;
+	alg->exit			= qce_aead_exit;
+
+	alg->base.cra_priority		= 275;
+	alg->base.cra_flags		= CRYPTO_ALG_ASYNC |
+					  CRYPTO_ALG_ALLOCATES_MEMORY |
+					  CRYPTO_ALG_KERN_DRIVER_ONLY |
+					  CRYPTO_ALG_NEED_FALLBACK;
+	alg->base.cra_ctxsize		= sizeof(struct qce_aead_ctx);
+	alg->base.cra_alignmask		= 0;
+	alg->base.cra_module		= THIS_MODULE;
+
+	INIT_LIST_HEAD(&tmpl->entry);
+	tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_AEAD;
+	tmpl->alg_flags = def->flags;
+	tmpl->qce = qce;
+
+	ret = crypto_register_aead(alg);
+	if (ret) {
+		dev_err(qce->dev, "%s registration failed\n", alg->base.cra_name);
+		kfree(tmpl);
+		return ret;
+	}
+
+	list_add_tail(&tmpl->entry, &aead_algs);
+	dev_dbg(qce->dev, "%s is registered\n", alg->base.cra_name);
+	return 0;
+}
+
+static void qce_aead_unregister(struct qce_device *qce)
+{
+	struct qce_alg_template *tmpl, *n;
+
+	list_for_each_entry_safe(tmpl, n, &aead_algs, entry) {
+		crypto_unregister_aead(&tmpl->alg.aead);
+		list_del(&tmpl->entry);
+		kfree(tmpl);
+	}
+}
+
+static int qce_aead_register(struct qce_device *qce)
+{
+	int ret, i;
+
+	for (i = 0; i < ARRAY_SIZE(aead_def); i++) {
+		ret = qce_aead_register_one(&aead_def[i], qce);
+		if (ret)
+			goto err;
+	}
+
+	return 0;
+err:
+	qce_aead_unregister(qce);
+	return ret;
+}
+
+const struct qce_algo_ops aead_ops = {
+	.type = CRYPTO_ALG_TYPE_AEAD,
+	.register_algs = qce_aead_register,
+	.unregister_algs = qce_aead_unregister,
+	.async_req_handle = qce_aead_async_req_handle,
+};