Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (50 commits)
  crypto: ixp4xx - Select CRYPTO_AUTHENC
  crypto: s390 - Respect STFL bit
  crypto: talitos - Add support for sha256 and md5 variants
  crypto: hash - Move ahash functions into crypto/hash.h
  crypto: crc32c - Add ahash implementation
  crypto: hash - Added scatter list walking helper
  crypto: prng - Deterministic CPRNG
  crypto: hash - Removed vestigial ahash fields
  crypto: hash - Fixed digest size check
  crypto: rmd - sparse annotations
  crypto: rmd128 - sparse annotations
  crypto: camellia - Use kernel-provided bitops, unaligned access helpers
  crypto: talitos - Use proper form for algorithm driver names
  crypto: talitos - Add support for 3des
  crypto: padlock - Make module loading quieter when hardware isn't available
  crypto: tcrpyt - Remove unnecessary kmap/kunmap calls
  crypto: ixp4xx - Hardware crypto support for IXP4xx CPUs
  crypto: talitos - Freescale integrated security engine (SEC) driver
  [CRYPTO] tcrypt: Add self test for des3_ebe cipher operating in cbc mode
  [CRYPTO] rmd: Use pointer form of endian swapping operations
  ...

8 files changed, 3515 insertions, 190 deletions

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 43b71b69daa..e522144cba3 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -174,4 +174,30 @@ config CRYPTO_DEV_HIFN_795X_RNG
 	  Select this option if you want to enable the random number generator
 	  on the HIFN 795x crypto adapters.
 
+config CRYPTO_DEV_TALITOS
+	tristate "Talitos Freescale Security Engine (SEC)"
+	select CRYPTO_ALGAPI
+	select CRYPTO_AUTHENC
+	select HW_RANDOM
+	depends on FSL_SOC
+	help
+	  Say 'Y' here to use the Freescale Security Engine (SEC)
+	  to offload cryptographic algorithm computation.
+
+	  The Freescale SEC is present on PowerQUICC 'E' processors, such
+	  as the MPC8349E and MPC8548E.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called talitos.
+
+config CRYPTO_DEV_IXP4XX
+	tristate "Driver for IXP4xx crypto hardware acceleration"
+	depends on ARCH_IXP4XX
+	select CRYPTO_DES
+	select CRYPTO_ALGAPI
+	select CRYPTO_AUTHENC
+	select CRYPTO_BLKCIPHER
+	help
+	  Driver for the IXP4xx NPE crypto engine.
+
 endif # CRYPTO_HW
diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
index c0327f0dadc..73557b2968d 100644
--- a/drivers/crypto/Makefile
+++ b/drivers/crypto/Makefile
@@ -2,3 +2,5 @@ obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o
 obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o
 obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-aes.o
 obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o
+obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o
+obj-$(CONFIG_CRYPTO_DEV_IXP4XX) += ixp4xx_crypto.o
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index 81f3f950cd7..4d22b21bd3e 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -29,7 +29,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/scatterlist.h>
 #include <linux/highmem.h>
-#include <linux/interrupt.h>
 #include <linux/crypto.h>
 #include <linux/hw_random.h>
 #include <linux/ktime.h>
@@ -369,7 +368,9 @@ static atomic_t hifn_dev_number;
 #define	HIFN_D_DST_RSIZE		80*4
 #define	HIFN_D_RES_RSIZE		24*4
 
-#define HIFN_QUEUE_LENGTH		HIFN_D_CMD_RSIZE-5
+#define HIFN_D_DST_DALIGN		4
+
+#define HIFN_QUEUE_LENGTH		HIFN_D_CMD_RSIZE-1
 
 #define AES_MIN_KEY_SIZE		16
 #define AES_MAX_KEY_SIZE		32
@@ -535,10 +536,10 @@ struct hifn_crypt_command
  */
 struct hifn_mac_command
 {
-	volatile u16 		masks;
-	volatile u16 		header_skip;
-	volatile u16 		source_count;
-	volatile u16 		reserved;
+	volatile __le16 	masks;
+	volatile __le16 	header_skip;
+	volatile __le16 	source_count;
+	volatile __le16 	reserved;
 };
 
 #define	HIFN_MAC_CMD_ALG_MASK		0x0001
@@ -564,10 +565,10 @@ struct hifn_mac_command
 
 struct hifn_comp_command
 {
-	volatile u16 		masks;
-	volatile u16 		header_skip;
-	volatile u16 		source_count;
-	volatile u16 		reserved;
+	volatile __le16 	masks;
+	volatile __le16 	header_skip;
+	volatile __le16 	source_count;
+	volatile __le16 	reserved;
 };
 
 #define	HIFN_COMP_CMD_SRCLEN_M		0xc000
@@ -583,10 +584,10 @@ struct hifn_comp_command
 
 struct hifn_base_result
 {
-	volatile u16 		flags;
-	volatile u16 		session;
-	volatile u16 		src_cnt;		/* 15:0 of source count */
-	volatile u16 		dst_cnt;		/* 15:0 of dest count */
+	volatile __le16 	flags;
+	volatile __le16 	session;
+	volatile __le16 	src_cnt;		/* 15:0 of source count */
+	volatile __le16 	dst_cnt;		/* 15:0 of dest count */
 };
 
 #define	HIFN_BASE_RES_DSTOVERRUN	0x0200	/* destination overrun */
@@ -597,8 +598,8 @@ struct hifn_base_result
 
 struct hifn_comp_result
 {
-	volatile u16 		flags;
-	volatile u16 		crc;
+	volatile __le16		flags;
+	volatile __le16		crc;
 };
 
 #define	HIFN_COMP_RES_LCB_M		0xff00	/* longitudinal check byte */
@@ -609,8 +610,8 @@ struct hifn_comp_result
 
 struct hifn_mac_result
 {
-	volatile u16 		flags;
-	volatile u16 		reserved;
+	volatile __le16 	flags;
+	volatile __le16 	reserved;
 	/* followed by 0, 6, 8, or 10 u16's of the MAC, then crypt */
 };
 
@@ -619,8 +620,8 @@ struct hifn_mac_result
 
 struct hifn_crypt_result
 {
-	volatile u16 		flags;
-	volatile u16 		reserved;
+	volatile __le16		flags;
+	volatile __le16		reserved;
 };
 
 #define	HIFN_CRYPT_RES_SRC_NOTZERO	0x0001	/* source expired */
@@ -686,12 +687,12 @@ static inline u32 hifn_read_1(struct hifn_device *dev, u32 reg)
 
 static inline void hifn_write_0(struct hifn_device *dev, u32 reg, u32 val)
 {
-	writel(val, dev->bar[0] + reg);
+	writel((__force u32)cpu_to_le32(val), dev->bar[0] + reg);
 }
 
 static inline void hifn_write_1(struct hifn_device *dev, u32 reg, u32 val)
 {
-	writel(val, dev->bar[1] + reg);
+	writel((__force u32)cpu_to_le32(val), dev->bar[1] + reg);
 }
 
 static void hifn_wait_puc(struct hifn_device *dev)
@@ -894,7 +895,7 @@ static int hifn_enable_crypto(struct hifn_device *dev)
 	char *offtbl = NULL;
 	int i;
 
-	for (i = 0; i < sizeof(pci2id)/sizeof(pci2id[0]); i++) {
+	for (i = 0; i < ARRAY_SIZE(pci2id); i++) {
 		if (pci2id[i].pci_vendor == dev->pdev->vendor &&
 				pci2id[i].pci_prod == dev->pdev->device) {
 			offtbl = pci2id[i].card_id;
@@ -1037,14 +1038,14 @@ static void hifn_init_registers(struct hifn_device *dev)
 	hifn_write_0(dev, HIFN_0_PUIER, HIFN_PUIER_DSTOVER);
 
 	/* write all 4 ring address registers */
-	hifn_write_1(dev, HIFN_1_DMA_CRAR, __cpu_to_le32(dptr +
-				offsetof(struct hifn_dma, cmdr[0])));
-	hifn_write_1(dev, HIFN_1_DMA_SRAR, __cpu_to_le32(dptr +
-				offsetof(struct hifn_dma, srcr[0])));
-	hifn_write_1(dev, HIFN_1_DMA_DRAR, __cpu_to_le32(dptr +
-				offsetof(struct hifn_dma, dstr[0])));
-	hifn_write_1(dev, HIFN_1_DMA_RRAR, __cpu_to_le32(dptr +
-				offsetof(struct hifn_dma, resr[0])));
+	hifn_write_1(dev, HIFN_1_DMA_CRAR, dptr +
+				offsetof(struct hifn_dma, cmdr[0]));
+	hifn_write_1(dev, HIFN_1_DMA_SRAR, dptr +
+				offsetof(struct hifn_dma, srcr[0]));
+	hifn_write_1(dev, HIFN_1_DMA_DRAR, dptr +
+				offsetof(struct hifn_dma, dstr[0]));
+	hifn_write_1(dev, HIFN_1_DMA_RRAR, dptr +
+				offsetof(struct hifn_dma, resr[0]));
 
 	mdelay(2);
 #if 0
@@ -1166,109 +1167,15 @@ static int hifn_setup_crypto_command(struct hifn_device *dev,
 	return cmd_len;
 }
 
-static int hifn_setup_src_desc(struct hifn_device *dev, struct page *page,
-		unsigned int offset, unsigned int size)
-{
-	struct hifn_dma *dma = (struct hifn_dma *)dev->desc_virt;
-	int idx;
-	dma_addr_t addr;
-
-	addr = pci_map_page(dev->pdev, page, offset, size, PCI_DMA_TODEVICE);
-
-	idx = dma->srci;
-
-	dma->srcr[idx].p = __cpu_to_le32(addr);
-	dma->srcr[idx].l = __cpu_to_le32(size) | HIFN_D_VALID |
-			HIFN_D_MASKDONEIRQ | HIFN_D_NOINVALID | HIFN_D_LAST;
-
-	if (++idx == HIFN_D_SRC_RSIZE) {
-		dma->srcr[idx].l = __cpu_to_le32(HIFN_D_VALID |
-				HIFN_D_JUMP |
-				HIFN_D_MASKDONEIRQ | HIFN_D_LAST);
-		idx = 0;
-	}
-
-	dma->srci = idx;
-	dma->srcu++;
-
-	if (!(dev->flags & HIFN_FLAG_SRC_BUSY)) {
-		hifn_write_1(dev, HIFN_1_DMA_CSR, HIFN_DMACSR_S_CTRL_ENA);
-		dev->flags |= HIFN_FLAG_SRC_BUSY;
-	}
-
-	return size;
-}
-
-static void hifn_setup_res_desc(struct hifn_device *dev)
-{
-	struct hifn_dma *dma = (struct hifn_dma *)dev->desc_virt;
-
-	dma->resr[dma->resi].l = __cpu_to_le32(HIFN_USED_RESULT |
-			HIFN_D_VALID | HIFN_D_LAST);
-	/*
-	 * dma->resr[dma->resi].l = __cpu_to_le32(HIFN_MAX_RESULT | HIFN_D_VALID |
-	 *					HIFN_D_LAST | HIFN_D_NOINVALID);
-	 */
-
-	if (++dma->resi == HIFN_D_RES_RSIZE) {
-		dma->resr[HIFN_D_RES_RSIZE].l = __cpu_to_le32(HIFN_D_VALID |
-				HIFN_D_JUMP | HIFN_D_MASKDONEIRQ | HIFN_D_LAST);
-		dma->resi = 0;
-	}
-
-	dma->resu++;
-
-	if (!(dev->flags & HIFN_FLAG_RES_BUSY)) {
-		hifn_write_1(dev, HIFN_1_DMA_CSR, HIFN_DMACSR_R_CTRL_ENA);
-		dev->flags |= HIFN_FLAG_RES_BUSY;
-	}
-}
-
-static void hifn_setup_dst_desc(struct hifn_device *dev, struct page *page,
-		unsigned offset, unsigned size)
-{
-	struct hifn_dma *dma = (struct hifn_dma *)dev->desc_virt;
-	int idx;
-	dma_addr_t addr;
-
-	addr = pci_map_page(dev->pdev, page, offset, size, PCI_DMA_FROMDEVICE);
-
-	idx = dma->dsti;
-	dma->dstr[idx].p = __cpu_to_le32(addr);
-	dma->dstr[idx].l = __cpu_to_le32(size |	HIFN_D_VALID |
-			HIFN_D_MASKDONEIRQ | HIFN_D_NOINVALID | HIFN_D_LAST);
-
-	if (++idx == HIFN_D_DST_RSIZE) {
-		dma->dstr[idx].l = __cpu_to_le32(HIFN_D_VALID |
-				HIFN_D_JUMP | HIFN_D_MASKDONEIRQ |
-				HIFN_D_LAST | HIFN_D_NOINVALID);
-		idx = 0;
-	}
-	dma->dsti = idx;
-	dma->dstu++;
-
-	if (!(dev->flags & HIFN_FLAG_DST_BUSY)) {
-		hifn_write_1(dev, HIFN_1_DMA_CSR, HIFN_DMACSR_D_CTRL_ENA);
-		dev->flags |= HIFN_FLAG_DST_BUSY;
-	}
-}
-
-static int hifn_setup_dma(struct hifn_device *dev, struct page *spage, unsigned int soff,
-		struct page *dpage, unsigned int doff, unsigned int nbytes, void *priv,
-		struct hifn_context *ctx)
+static int hifn_setup_cmd_desc(struct hifn_device *dev,
+		struct hifn_context *ctx, void *priv, unsigned int nbytes)
 {
 	struct hifn_dma *dma = (struct hifn_dma *)dev->desc_virt;
 	int cmd_len, sa_idx;
 	u8 *buf, *buf_pos;
 	u16 mask;
 
-	dprintk("%s: spage: %p, soffset: %u, dpage: %p, doffset: %u, nbytes: %u, priv: %p, ctx: %p.\n",
-			dev->name, spage, soff, dpage, doff, nbytes, priv, ctx);
-
-	sa_idx = dma->resi;
-
-	hifn_setup_src_desc(dev, spage, soff, nbytes);
-
+	sa_idx = dma->cmdi;
 	buf_pos = buf = dma->command_bufs[dma->cmdi];
 
 	mask = 0;
@@ -1370,16 +1277,113 @@ static int hifn_setup_dma(struct hifn_device *dev, struct page *spage, unsigned
 		hifn_write_1(dev, HIFN_1_DMA_CSR, HIFN_DMACSR_C_CTRL_ENA);
 		dev->flags |= HIFN_FLAG_CMD_BUSY;
 	}
-
-	hifn_setup_dst_desc(dev, dpage, doff, nbytes);
-	hifn_setup_res_desc(dev);
-
 	return 0;
 
 err_out:
 	return -EINVAL;
 }
 
+static int hifn_setup_src_desc(struct hifn_device *dev, struct page *page,
+		unsigned int offset, unsigned int size)
+{
+	struct hifn_dma *dma = (struct hifn_dma *)dev->desc_virt;
+	int idx;
+	dma_addr_t addr;
+
+	addr = pci_map_page(dev->pdev, page, offset, size, PCI_DMA_TODEVICE);
+
+	idx = dma->srci;
+
+	dma->srcr[idx].p = __cpu_to_le32(addr);
+	dma->srcr[idx].l = __cpu_to_le32(size | HIFN_D_VALID |
+			HIFN_D_MASKDONEIRQ | HIFN_D_LAST);
+
+	if (++idx == HIFN_D_SRC_RSIZE) {
+		dma->srcr[idx].l = __cpu_to_le32(HIFN_D_VALID |
+				HIFN_D_JUMP |
+				HIFN_D_MASKDONEIRQ | HIFN_D_LAST);
+		idx = 0;
+	}
+
+	dma->srci = idx;
+	dma->srcu++;
+
+	if (!(dev->flags & HIFN_FLAG_SRC_BUSY)) {
+		hifn_write_1(dev, HIFN_1_DMA_CSR, HIFN_DMACSR_S_CTRL_ENA);
+		dev->flags |= HIFN_FLAG_SRC_BUSY;
+	}
+
+	return size;
+}
+
+static void hifn_setup_res_desc(struct hifn_device *dev)
+{
+	struct hifn_dma *dma = (struct hifn_dma *)dev->desc_virt;
+
+	dma->resr[dma->resi].l = __cpu_to_le32(HIFN_USED_RESULT |
+			HIFN_D_VALID | HIFN_D_LAST);
+	/*
+	 * dma->resr[dma->resi].l = __cpu_to_le32(HIFN_MAX_RESULT | HIFN_D_VALID |
+	 *					HIFN_D_LAST);
+	 */
+
+	if (++dma->resi == HIFN_D_RES_RSIZE) {
+		dma->resr[HIFN_D_RES_RSIZE].l = __cpu_to_le32(HIFN_D_VALID |
+				HIFN_D_JUMP | HIFN_D_MASKDONEIRQ | HIFN_D_LAST);
+		dma->resi = 0;
+	}
+
+	dma->resu++;
+
+	if (!(dev->flags & HIFN_FLAG_RES_BUSY)) {
+		hifn_write_1(dev, HIFN_1_DMA_CSR, HIFN_DMACSR_R_CTRL_ENA);
+		dev->flags |= HIFN_FLAG_RES_BUSY;
+	}
+}
+
+static void hifn_setup_dst_desc(struct hifn_device *dev, struct page *page,
+		unsigned offset, unsigned size)
+{
+	struct hifn_dma *dma = (struct hifn_dma *)dev->desc_virt;
+	int idx;
+	dma_addr_t addr;
+
+	addr = pci_map_page(dev->pdev, page, offset, size, PCI_DMA_FROMDEVICE);
+
+	idx = dma->dsti;
+	dma->dstr[idx].p = __cpu_to_le32(addr);
+	dma->dstr[idx].l = __cpu_to_le32(size |	HIFN_D_VALID |
+			HIFN_D_MASKDONEIRQ | HIFN_D_LAST);
+
+	if (++idx == HIFN_D_DST_RSIZE) {
+		dma->dstr[idx].l = __cpu_to_le32(HIFN_D_VALID |
+				HIFN_D_JUMP | HIFN_D_MASKDONEIRQ |
+				HIFN_D_LAST);
+		idx = 0;
+	}
+	dma->dsti = idx;
+	dma->dstu++;
+
+	if (!(dev->flags & HIFN_FLAG_DST_BUSY)) {
+		hifn_write_1(dev, HIFN_1_DMA_CSR, HIFN_DMACSR_D_CTRL_ENA);
+		dev->flags |= HIFN_FLAG_DST_BUSY;
+	}
+}
+
+static int hifn_setup_dma(struct hifn_device *dev, struct page *spage, unsigned int soff,
+		struct page *dpage, unsigned int doff, unsigned int nbytes, void *priv,
+		struct hifn_context *ctx)
+{
+	dprintk("%s: spage: %p, soffset: %u, dpage: %p, doffset: %u, nbytes: %u, priv: %p, ctx: %p.\n",
+			dev->name, spage, soff, dpage, doff, nbytes, priv, ctx);
+
+	hifn_setup_src_desc(dev, spage, soff, nbytes);
+	hifn_setup_cmd_desc(dev, ctx, priv, nbytes);
+	hifn_setup_dst_desc(dev, dpage, doff, nbytes);
+	hifn_setup_res_desc(dev);
+	return 0;
+}
+
 static int ablkcipher_walk_init(struct ablkcipher_walk *w,
 		int num, gfp_t gfp_flags)
 {
@@ -1431,7 +1435,7 @@ static int ablkcipher_add(void *daddr, unsigned int *drestp, struct scatterlist
 		return -EINVAL;
 
 	while (size) {
-		copy = min(drest, src->length);
+		copy = min(drest, min(size, src->length));
 
 		saddr = kmap_atomic(sg_page(src), KM_SOFTIRQ1);
 		memcpy(daddr, saddr + src->offset, copy);
@@ -1458,10 +1462,6 @@ static int ablkcipher_add(void *daddr, unsigned int *drestp, struct scatterlist
 static int ablkcipher_walk(struct ablkcipher_request *req,
 		struct ablkcipher_walk *w)
 {
-	unsigned blocksize =
-		crypto_ablkcipher_blocksize(crypto_ablkcipher_reqtfm(req));
-	unsigned alignmask =
-		crypto_ablkcipher_alignmask(crypto_ablkcipher_reqtfm(req));
 	struct scatterlist *src, *dst, *t;
 	void *daddr;
 	unsigned int nbytes = req->nbytes, offset, copy, diff;
@@ -1477,16 +1477,14 @@ static int ablkcipher_walk(struct ablkcipher_request *req,
 		dst = &req->dst[idx];
 
 		dprintk("\n%s: slen: %u, dlen: %u, soff: %u, doff: %u, offset: %u, "
-				"blocksize: %u, nbytes: %u.\n",
+				"nbytes: %u.\n",
 				__func__, src->length, dst->length, src->offset,
-				dst->offset, offset, blocksize, nbytes);
-
-		if (src->length & (blocksize - 1) ||
-				src->offset & (alignmask - 1) ||
-				dst->length & (blocksize - 1) ||
-				dst->offset & (alignmask - 1) ||
-				offset) {
-			unsigned slen = src->length - offset;
+				dst->offset, offset, nbytes);
+
+		if (!IS_ALIGNED(dst->offset, HIFN_D_DST_DALIGN) ||
+		    !IS_ALIGNED(dst->length, HIFN_D_DST_DALIGN) ||
+		    offset) {
+			unsigned slen = min(src->length - offset, nbytes);
 			unsigned dlen = PAGE_SIZE;
 
 			t = &w->cache[idx];
@@ -1498,8 +1496,8 @@ static int ablkcipher_walk(struct ablkcipher_request *req,
 
 			idx += err;
 
-			copy = slen & ~(blocksize - 1);
-			diff = slen & (blocksize - 1);
+			copy = slen & ~(HIFN_D_DST_DALIGN - 1);
+			diff = slen & (HIFN_D_DST_DALIGN - 1);
 
 			if (dlen < nbytes) {
 				/*
@@ -1507,7 +1505,7 @@ static int ablkcipher_walk(struct ablkcipher_request *req,
 				 * to put there additional blocksized chunk,
 				 * so we mark that page as containing only
 				 * blocksize aligned chunks:
-				 * 	t->length = (slen & ~(blocksize - 1));
+				 * 	t->length = (slen & ~(HIFN_D_DST_DALIGN - 1));
 				 * and increase number of bytes to be processed
 				 * in next chunk:
 				 * 	nbytes += diff;
@@ -1544,7 +1542,7 @@ static int ablkcipher_walk(struct ablkcipher_request *req,
 
 			kunmap_atomic(daddr, KM_SOFTIRQ0);
 		} else {
-			nbytes -= src->length;
+			nbytes -= min(src->length, nbytes);
 			idx++;
 		}
 
@@ -1563,14 +1561,10 @@ static int hifn_setup_session(struct ablkcipher_request *req)
 	struct hifn_context *ctx = crypto_tfm_ctx(req->base.tfm);
 	struct hifn_device *dev = ctx->dev;
 	struct page *spage, *dpage;
-	unsigned long soff, doff, flags;
+	unsigned long soff, doff, dlen, flags;
 	unsigned int nbytes = req->nbytes, idx = 0, len;
 	int err = -EINVAL, sg_num;
 	struct scatterlist *src, *dst, *t;
-	unsigned blocksize =
-		crypto_ablkcipher_blocksize(crypto_ablkcipher_reqtfm(req));
-	unsigned alignmask =
-		crypto_ablkcipher_alignmask(crypto_ablkcipher_reqtfm(req));
 
 	if (ctx->iv && !ctx->ivsize && ctx->mode != ACRYPTO_MODE_ECB)
 		goto err_out_exit;
@@ -1578,17 +1572,14 @@ static int hifn_setup_session(struct ablkcipher_request *req)
 	ctx->walk.flags = 0;
 
 	while (nbytes) {
-		src = &req->src[idx];
 		dst = &req->dst[idx];
+		dlen = min(dst->length, nbytes);
 
-		if (src->length & (blocksize - 1) ||
-				src->offset & (alignmask - 1) ||
-				dst->length & (blocksize - 1) ||
-				dst->offset & (alignmask - 1)) {
+		if (!IS_ALIGNED(dst->offset, HIFN_D_DST_DALIGN) ||
+		    !IS_ALIGNED(dlen, HIFN_D_DST_DALIGN))
 			ctx->walk.flags |= ASYNC_FLAGS_MISALIGNED;
-		}
 
-		nbytes -= src->length;
+		nbytes -= dlen;
 		idx++;
 	}
 
@@ -1602,7 +1593,10 @@ static int hifn_setup_session(struct ablkcipher_request *req)
 	idx = 0;
 
 	sg_num = ablkcipher_walk(req, &ctx->walk);
-
+	if (sg_num < 0) {
+		err = sg_num;
+		goto err_out_exit;
+	}
 	atomic_set(&ctx->sg_num, sg_num);
 
 	spin_lock_irqsave(&dev->lock, flags);
@@ -1640,7 +1634,7 @@ static int hifn_setup_session(struct ablkcipher_request *req)
 		if (err)
 			goto err_out;
 
-		nbytes -= len;
+		nbytes -= min(len, nbytes);
 	}
 
 	dev->active = HIFN_DEFAULT_ACTIVE_NUM;
@@ -1651,7 +1645,7 @@ static int hifn_setup_session(struct ablkcipher_request *req)
 err_out:
 	spin_unlock_irqrestore(&dev->lock, flags);
 err_out_exit:
-	if (err && printk_ratelimit())
+	if (err)
 		dprintk("%s: iv: %p [%d], key: %p [%d], mode: %u, op: %u, "
 				"type: %u, err: %d.\n",
 			dev->name, ctx->iv, ctx->ivsize,
@@ -1745,8 +1739,7 @@ static int ablkcipher_get(void *saddr, unsigned int *srestp, unsigned int offset
 		return -EINVAL;
 
 	while (size) {
-
-		copy = min(dst->length, srest);
+		copy = min(srest, min(dst->length, size));
 
 		daddr = kmap_atomic(sg_page(dst), KM_IRQ0);
 		memcpy(daddr + dst->offset + offset, saddr, copy);
@@ -1803,7 +1796,7 @@ static void hifn_process_ready(struct ablkcipher_request *req, int error)
 					sg_page(dst), dst->length, nbytes);
 
 				if (!t->length) {
-					nbytes -= dst->length;
+					nbytes -= min(dst->length, nbytes);
 					idx++;
 					continue;
 				}
@@ -2202,9 +2195,9 @@ static int hifn_setup_crypto(struct ablkcipher_request *req, u8 op,
 		return err;
 
 	if (dev->started < HIFN_QUEUE_LENGTH &&	dev->queue.qlen)
-		err = hifn_process_queue(dev);
+		hifn_process_queue(dev);
 
-	return err;
+	return -EINPROGRESS;
 }
 
 /*
@@ -2364,7 +2357,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 	 * 3DES ECB, CBC, CFB and OFB modes.
 	 */
 	{
-		.name = "cfb(des3_ede)", .drv_name = "hifn-3des", .bsize = 8,
+		.name = "cfb(des3_ede)", .drv_name = "cfb-3des", .bsize = 8,
 		.ablkcipher = {
 			.min_keysize	=	HIFN_3DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_3DES_KEY_LENGTH,
@@ -2374,7 +2367,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "ofb(des3_ede)", .drv_name = "hifn-3des", .bsize = 8,
+		.name = "ofb(des3_ede)", .drv_name = "ofb-3des", .bsize = 8,
 		.ablkcipher = {
 			.min_keysize	=	HIFN_3DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_3DES_KEY_LENGTH,
@@ -2384,8 +2377,9 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "cbc(des3_ede)", .drv_name = "hifn-3des", .bsize = 8,
+		.name = "cbc(des3_ede)", .drv_name = "cbc-3des", .bsize = 8,
 		.ablkcipher = {
+			.ivsize		=	HIFN_IV_LENGTH,
 			.min_keysize	=	HIFN_3DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_3DES_KEY_LENGTH,
 			.setkey		=	hifn_setkey,
@@ -2394,7 +2388,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "ecb(des3_ede)", .drv_name = "hifn-3des", .bsize = 8,
+		.name = "ecb(des3_ede)", .drv_name = "ecb-3des", .bsize = 8,
 		.ablkcipher = {
 			.min_keysize	=	HIFN_3DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_3DES_KEY_LENGTH,
@@ -2408,7 +2402,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 	 * DES ECB, CBC, CFB and OFB modes.
 	 */
 	{
-		.name = "cfb(des)", .drv_name = "hifn-des", .bsize = 8,
+		.name = "cfb(des)", .drv_name = "cfb-des", .bsize = 8,
 		.ablkcipher = {
 			.min_keysize	=	HIFN_DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_DES_KEY_LENGTH,
@@ -2418,7 +2412,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "ofb(des)", .drv_name = "hifn-des", .bsize = 8,
+		.name = "ofb(des)", .drv_name = "ofb-des", .bsize = 8,
 		.ablkcipher = {
 			.min_keysize	=	HIFN_DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_DES_KEY_LENGTH,
@@ -2428,8 +2422,9 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "cbc(des)", .drv_name = "hifn-des", .bsize = 8,
+		.name = "cbc(des)", .drv_name = "cbc-des", .bsize = 8,
 		.ablkcipher = {
+			.ivsize		=	HIFN_IV_LENGTH,
 			.min_keysize	=	HIFN_DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_DES_KEY_LENGTH,
 			.setkey		=	hifn_setkey,
@@ -2438,7 +2433,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "ecb(des)", .drv_name = "hifn-des", .bsize = 8,
+		.name = "ecb(des)", .drv_name = "ecb-des", .bsize = 8,
 		.ablkcipher = {
 			.min_keysize	=	HIFN_DES_KEY_LENGTH,
 			.max_keysize	=	HIFN_DES_KEY_LENGTH,
@@ -2452,7 +2447,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 	 * AES ECB, CBC, CFB and OFB modes.
 	 */
 	{
-		.name = "ecb(aes)", .drv_name = "hifn-aes", .bsize = 16,
+		.name = "ecb(aes)", .drv_name = "ecb-aes", .bsize = 16,
 		.ablkcipher = {
 			.min_keysize	=	AES_MIN_KEY_SIZE,
 			.max_keysize	=	AES_MAX_KEY_SIZE,
@@ -2462,8 +2457,9 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "cbc(aes)", .drv_name = "hifn-aes", .bsize = 16,
+		.name = "cbc(aes)", .drv_name = "cbc-aes", .bsize = 16,
 		.ablkcipher = {
+			.ivsize		=	HIFN_AES_IV_LENGTH,
 			.min_keysize	=	AES_MIN_KEY_SIZE,
 			.max_keysize	=	AES_MAX_KEY_SIZE,
 			.setkey		=	hifn_setkey,
@@ -2472,7 +2468,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "cfb(aes)", .drv_name = "hifn-aes", .bsize = 16,
+		.name = "cfb(aes)", .drv_name = "cfb-aes", .bsize = 16,
 		.ablkcipher = {
 			.min_keysize	=	AES_MIN_KEY_SIZE,
 			.max_keysize	=	AES_MAX_KEY_SIZE,
@@ -2482,7 +2478,7 @@ static struct hifn_alg_template hifn_alg_templates[] = {
 		},
 	},
 	{
-		.name = "ofb(aes)", .drv_name = "hifn-aes", .bsize = 16,
+		.name = "ofb(aes)", .drv_name = "ofb-aes", .bsize = 16,
 		.ablkcipher = {
 			.min_keysize	=	AES_MIN_KEY_SIZE,
 			.max_keysize	=	AES_MAX_KEY_SIZE,
@@ -2514,15 +2510,14 @@ static int hifn_alg_alloc(struct hifn_device *dev, struct hifn_alg_template *t)
 		return -ENOMEM;
 
 	snprintf(alg->alg.cra_name, CRYPTO_MAX_ALG_NAME, "%s", t->name);
-	snprintf(alg->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", t->drv_name);
+	snprintf(alg->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-%s",
+		 t->drv_name, dev->name);
 
 	alg->alg.cra_priority = 300;
 	alg->alg.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC;
 	alg->alg.cra_blocksize = t->bsize;
 	alg->alg.cra_ctxsize = sizeof(struct hifn_context);
-	alg->alg.cra_alignmask = 15;
-	if (t->bsize == 8)
-		alg->alg.cra_alignmask = 3;
+	alg->alg.cra_alignmask = 0;
 	alg->alg.cra_type = &crypto_ablkcipher_type;
 	alg->alg.cra_module = THIS_MODULE;
 	alg->alg.cra_u.ablkcipher = t->ablkcipher;
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
new file mode 100644
index 00000000000..42a107fe923
--- /dev/null
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -0,0 +1,1506 @@
+/*
+ * Intel IXP4xx NPE-C crypto driver
+ *
+ * Copyright (C) 2008 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/rtnetlink.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+
+#include <crypto/ctr.h>
+#include <crypto/des.h>
+#include <crypto/aes.h>
+#include <crypto/sha.h>
+#include <crypto/algapi.h>
+#include <crypto/aead.h>
+#include <crypto/authenc.h>
+#include <crypto/scatterwalk.h>
+
+#include <asm/arch/npe.h>
+#include <asm/arch/qmgr.h>
+
+#define MAX_KEYLEN 32
+
+/* hash: cfgword + 2 * digestlen; crypt: keylen + cfgword */
+#define NPE_CTX_LEN 80
+#define AES_BLOCK128 16
+
+#define NPE_OP_HASH_VERIFY   0x01
+#define NPE_OP_CCM_ENABLE    0x04
+#define NPE_OP_CRYPT_ENABLE  0x08
+#define NPE_OP_HASH_ENABLE   0x10
+#define NPE_OP_NOT_IN_PLACE  0x20
+#define NPE_OP_HMAC_DISABLE  0x40
+#define NPE_OP_CRYPT_ENCRYPT 0x80
+
+#define NPE_OP_CCM_GEN_MIC   0xcc
+#define NPE_OP_HASH_GEN_ICV  0x50
+#define NPE_OP_ENC_GEN_KEY   0xc9
+
+#define MOD_ECB     0x0000
+#define MOD_CTR     0x1000
+#define MOD_CBC_ENC 0x2000
+#define MOD_CBC_DEC 0x3000
+#define MOD_CCM_ENC 0x4000
+#define MOD_CCM_DEC 0x5000
+
+#define KEYLEN_128  4
+#define KEYLEN_192  6
+#define KEYLEN_256  8
+
+#define CIPH_DECR   0x0000
+#define CIPH_ENCR   0x0400
+
+#define MOD_DES     0x0000
+#define MOD_TDEA2   0x0100
+#define MOD_3DES   0x0200
+#define MOD_AES     0x0800
+#define MOD_AES128  (0x0800 | KEYLEN_128)
+#define MOD_AES192  (0x0900 | KEYLEN_192)
+#define MOD_AES256  (0x0a00 | KEYLEN_256)
+
+#define MAX_IVLEN   16
+#define NPE_ID      2  /* NPE C */
+#define NPE_QLEN    16
+/* Space for registering when the first
+ * NPE_QLEN crypt_ctl are busy */
+#define NPE_QLEN_TOTAL 64
+
+#define SEND_QID    29
+#define RECV_QID    30
+
+#define CTL_FLAG_UNUSED		0x0000
+#define CTL_FLAG_USED		0x1000
+#define CTL_FLAG_PERFORM_ABLK	0x0001
+#define CTL_FLAG_GEN_ICV	0x0002
+#define CTL_FLAG_GEN_REVAES	0x0004
+#define CTL_FLAG_PERFORM_AEAD	0x0008
+#define CTL_FLAG_MASK		0x000f
+
+#define HMAC_IPAD_VALUE   0x36
+#define HMAC_OPAD_VALUE   0x5C
+#define HMAC_PAD_BLOCKLEN SHA1_BLOCK_SIZE
+
+#define MD5_DIGEST_SIZE   16
+
+struct buffer_desc {
+	u32 phys_next;
+	u16 buf_len;
+	u16 pkt_len;
+	u32 phys_addr;
+	u32 __reserved[4];
+	struct buffer_desc *next;
+};
+
+struct crypt_ctl {
+	u8 mode;		/* NPE_OP_*  operation mode */
+	u8 init_len;
+	u16 reserved;
+	u8 iv[MAX_IVLEN];	/* IV for CBC mode or CTR IV for CTR mode */
+	u32 icv_rev_aes;	/* icv or rev aes */
+	u32 src_buf;
+	u32 dst_buf;
+	u16 auth_offs;		/* Authentication start offset */
+	u16 auth_len;		/* Authentication data length */
+	u16 crypt_offs;		/* Cryption start offset */
+	u16 crypt_len;		/* Cryption data length */
+	u32 aadAddr;		/* Additional Auth Data Addr for CCM mode */
+	u32 crypto_ctx;		/* NPE Crypto Param structure address */
+
+	/* Used by Host: 4*4 bytes*/
+	unsigned ctl_flags;
+	union {
+		struct ablkcipher_request *ablk_req;
+		struct aead_request *aead_req;
+		struct crypto_tfm *tfm;
+	} data;
+	struct buffer_desc *regist_buf;
+	u8 *regist_ptr;
+};
+
+struct ablk_ctx {
+	struct buffer_desc *src;
+	struct buffer_desc *dst;
+	unsigned src_nents;
+	unsigned dst_nents;
+};
+
+struct aead_ctx {
+	struct buffer_desc *buffer;
+	unsigned short assoc_nents;
+	unsigned short src_nents;
+	struct scatterlist ivlist;
+	/* used when the hmac is not on one sg entry */
+	u8 *hmac_virt;
+	int encrypt;
+};
+
+struct ix_hash_algo {
+	u32 cfgword;
+	unsigned char *icv;
+};
+
+struct ix_sa_dir {
+	unsigned char *npe_ctx;
+	dma_addr_t npe_ctx_phys;
+	int npe_ctx_idx;
+	u8 npe_mode;
+};
+
+struct ixp_ctx {
+	struct ix_sa_dir encrypt;
+	struct ix_sa_dir decrypt;
+	int authkey_len;
+	u8 authkey[MAX_KEYLEN];
+	int enckey_len;
+	u8 enckey[MAX_KEYLEN];
+	u8 salt[MAX_IVLEN];
+	u8 nonce[CTR_RFC3686_NONCE_SIZE];
+	unsigned salted;
+	atomic_t configuring;
+	struct completion completion;
+};
+
+struct ixp_alg {
+	struct crypto_alg crypto;
+	const struct ix_hash_algo *hash;
+	u32 cfg_enc;
+	u32 cfg_dec;
+
+	int registered;
+};
+
+static const struct ix_hash_algo hash_alg_md5 = {
+	.cfgword	= 0xAA010004,
+	.icv		= "\x01\x23\x45\x67\x89\xAB\xCD\xEF"
+			  "\xFE\xDC\xBA\x98\x76\x54\x32\x10",
+};
+static const struct ix_hash_algo hash_alg_sha1 = {
+	.cfgword	= 0x00000005,
+	.icv		= "\x67\x45\x23\x01\xEF\xCD\xAB\x89\x98\xBA"
+			  "\xDC\xFE\x10\x32\x54\x76\xC3\xD2\xE1\xF0",
+};
+
+static struct npe *npe_c;
+static struct dma_pool *buffer_pool = NULL;
+static struct dma_pool *ctx_pool = NULL;
+
+static struct crypt_ctl *crypt_virt = NULL;
+static dma_addr_t crypt_phys;
+
+static int support_aes = 1;
+
+static void dev_release(struct device *dev)
+{
+	return;
+}
+
+#define DRIVER_NAME "ixp4xx_crypto"
+static struct platform_device pseudo_dev = {
+	.name = DRIVER_NAME,
+	.id   = 0,
+	.num_resources = 0,
+	.dev  = {
+		.coherent_dma_mask = DMA_32BIT_MASK,
+		.release = dev_release,
+	}
+};
+
+static struct device *dev = &pseudo_dev.dev;
+
+static inline dma_addr_t crypt_virt2phys(struct crypt_ctl *virt)
+{
+	return crypt_phys + (virt - crypt_virt) * sizeof(struct crypt_ctl);
+}
+
+static inline struct crypt_ctl *crypt_phys2virt(dma_addr_t phys)
+{
+	return crypt_virt + (phys - crypt_phys) / sizeof(struct crypt_ctl);
+}
+
+static inline u32 cipher_cfg_enc(struct crypto_tfm *tfm)
+{
+	return container_of(tfm->__crt_alg, struct ixp_alg,crypto)->cfg_enc;
+}
+
+static inline u32 cipher_cfg_dec(struct crypto_tfm *tfm)
+{
+	return container_of(tfm->__crt_alg, struct ixp_alg,crypto)->cfg_dec;
+}
+
+static inline const struct ix_hash_algo *ix_hash(struct crypto_tfm *tfm)
+{
+	return container_of(tfm->__crt_alg, struct ixp_alg, crypto)->hash;
+}
+
+static int setup_crypt_desc(void)
+{
+	BUILD_BUG_ON(sizeof(struct crypt_ctl) != 64);
+	crypt_virt = dma_alloc_coherent(dev,
+			NPE_QLEN * sizeof(struct crypt_ctl),
+			&crypt_phys, GFP_KERNEL);
+	if (!crypt_virt)
+		return -ENOMEM;
+	memset(crypt_virt, 0, NPE_QLEN * sizeof(struct crypt_ctl));
+	return 0;
+}
+
+static spinlock_t desc_lock;
+static struct crypt_ctl *get_crypt_desc(void)
+{
+	int i;
+	static int idx = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&desc_lock, flags);
+
+	if (unlikely(!crypt_virt))
+		setup_crypt_desc();
+	if (unlikely(!crypt_virt)) {
+		spin_unlock_irqrestore(&desc_lock, flags);
+		return NULL;
+	}
+	i = idx;
+	if (crypt_virt[i].ctl_flags == CTL_FLAG_UNUSED) {
+		if (++idx >= NPE_QLEN)
+			idx = 0;
+		crypt_virt[i].ctl_flags = CTL_FLAG_USED;
+		spin_unlock_irqrestore(&desc_lock, flags);
+		return crypt_virt +i;
+	} else {
+		spin_unlock_irqrestore(&desc_lock, flags);
+		return NULL;
+	}
+}
+
+static spinlock_t emerg_lock;
+static struct crypt_ctl *get_crypt_desc_emerg(void)
+{
+	int i;
+	static int idx = NPE_QLEN;
+	struct crypt_ctl *desc;
+	unsigned long flags;
+
+	desc = get_crypt_desc();
+	if (desc)
+		return desc;
+	if (unlikely(!crypt_virt))
+		return NULL;
+
+	spin_lock_irqsave(&emerg_lock, flags);
+	i = idx;
+	if (crypt_virt[i].ctl_flags == CTL_FLAG_UNUSED) {
+		if (++idx >= NPE_QLEN_TOTAL)
+			idx = NPE_QLEN;
+		crypt_virt[i].ctl_flags = CTL_FLAG_USED;
+		spin_unlock_irqrestore(&emerg_lock, flags);
+		return crypt_virt +i;
+	} else {
+		spin_unlock_irqrestore(&emerg_lock, flags);
+		return NULL;
+	}
+}
+
+static void free_buf_chain(struct buffer_desc *buf, u32 phys)
+{
+	while (buf) {
+		struct buffer_desc *buf1;
+		u32 phys1;
+
+		buf1 = buf->next;
+		phys1 = buf->phys_next;
+		dma_pool_free(buffer_pool, buf, phys);
+		buf = buf1;
+		phys = phys1;
+	}
+}
+
+static struct tasklet_struct crypto_done_tasklet;
+
+static void finish_scattered_hmac(struct crypt_ctl *crypt)
+{
+	struct aead_request *req = crypt->data.aead_req;
+	struct aead_ctx *req_ctx = aead_request_ctx(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	int authsize = crypto_aead_authsize(tfm);
+	int decryptlen = req->cryptlen - authsize;
+
+	if (req_ctx->encrypt) {
+		scatterwalk_map_and_copy(req_ctx->hmac_virt,
+			req->src, decryptlen, authsize, 1);
+	}
+	dma_pool_free(buffer_pool, req_ctx->hmac_virt, crypt->icv_rev_aes);
+}
+
+static void one_packet(dma_addr_t phys)
+{
+	struct crypt_ctl *crypt;
+	struct ixp_ctx *ctx;
+	int failed;
+	enum dma_data_direction src_direction = DMA_BIDIRECTIONAL;
+
+	failed = phys & 0x1 ? -EBADMSG : 0;
+	phys &= ~0x3;
+	crypt = crypt_phys2virt(phys);
+
+	switch (crypt->ctl_flags & CTL_FLAG_MASK) {
+	case CTL_FLAG_PERFORM_AEAD: {
+		struct aead_request *req = crypt->data.aead_req;
+		struct aead_ctx *req_ctx = aead_request_ctx(req);
+		dma_unmap_sg(dev, req->assoc, req_ctx->assoc_nents,
+				DMA_TO_DEVICE);
+		dma_unmap_sg(dev, &req_ctx->ivlist, 1, DMA_BIDIRECTIONAL);
+		dma_unmap_sg(dev, req->src, req_ctx->src_nents,
+				DMA_BIDIRECTIONAL);
+
+		free_buf_chain(req_ctx->buffer, crypt->src_buf);
+		if (req_ctx->hmac_virt) {
+			finish_scattered_hmac(crypt);
+		}
+		req->base.complete(&req->base, failed);
+		break;
+	}
+	case CTL_FLAG_PERFORM_ABLK: {
+		struct ablkcipher_request *req = crypt->data.ablk_req;
+		struct ablk_ctx *req_ctx = ablkcipher_request_ctx(req);
+		int nents;
+		if (req_ctx->dst) {
+			nents = req_ctx->dst_nents;
+			dma_unmap_sg(dev, req->dst, nents, DMA_FROM_DEVICE);
+			free_buf_chain(req_ctx->dst, crypt->dst_buf);
+			src_direction = DMA_TO_DEVICE;
+		}
+		nents = req_ctx->src_nents;
+		dma_unmap_sg(dev, req->src, nents, src_direction);
+		free_buf_chain(req_ctx->src, crypt->src_buf);
+		req->base.complete(&req->base, failed);
+		break;
+	}
+	case CTL_FLAG_GEN_ICV:
+		ctx = crypto_tfm_ctx(crypt->data.tfm);
+		dma_pool_free(ctx_pool, crypt->regist_ptr,
+				crypt->regist_buf->phys_addr);
+		dma_pool_free(buffer_pool, crypt->regist_buf, crypt->src_buf);
+		if (atomic_dec_and_test(&ctx->configuring))
+			complete(&ctx->completion);
+		break;
+	case CTL_FLAG_GEN_REVAES:
+		ctx = crypto_tfm_ctx(crypt->data.tfm);
+		*(u32*)ctx->decrypt.npe_ctx &= cpu_to_be32(~CIPH_ENCR);
+		if (atomic_dec_and_test(&ctx->configuring))
+			complete(&ctx->completion);
+		break;
+	default:
+		BUG();
+	}
+	crypt->ctl_flags = CTL_FLAG_UNUSED;
+}
+
+static void irqhandler(void *_unused)
+{
+	tasklet_schedule(&crypto_done_tasklet);
+}
+
+static void crypto_done_action(unsigned long arg)
+{
+	int i;
+
+	for(i=0; i<4; i++) {
+		dma_addr_t phys = qmgr_get_entry(RECV_QID);
+		if (!phys)
+			return;
+		one_packet(phys);
+	}
+	tasklet_schedule(&crypto_done_tasklet);
+}
+
+static int init_ixp_crypto(void)
+{
+	int ret = -ENODEV;
+
+	if (! ( ~(*IXP4XX_EXP_CFG2) & (IXP4XX_FEATURE_HASH |
+				IXP4XX_FEATURE_AES | IXP4XX_FEATURE_DES))) {
+		printk(KERN_ERR "ixp_crypto: No HW crypto available\n");
+		return ret;
+	}
+	npe_c = npe_request(NPE_ID);
+	if (!npe_c)
+		return ret;
+
+	if (!npe_running(npe_c)) {
+		npe_load_firmware(npe_c, npe_name(npe_c), dev);
+	}
+
+	/* buffer_pool will also be used to sometimes store the hmac,
+	 * so assure it is large enough
+	 */
+	BUILD_BUG_ON(SHA1_DIGEST_SIZE > sizeof(struct buffer_desc));
+	buffer_pool = dma_pool_create("buffer", dev,
+			sizeof(struct buffer_desc), 32, 0);
+	ret = -ENOMEM;
+	if (!buffer_pool) {
+		goto err;
+	}
+	ctx_pool = dma_pool_create("context", dev,
+			NPE_CTX_LEN, 16, 0);
+	if (!ctx_pool) {
+		goto err;
+	}
+	ret = qmgr_request_queue(SEND_QID, NPE_QLEN_TOTAL, 0, 0);
+	if (ret)
+		goto err;
+	ret = qmgr_request_queue(RECV_QID, NPE_QLEN, 0, 0);
+	if (ret) {
+		qmgr_release_queue(SEND_QID);
+		goto err;
+	}
+	qmgr_set_irq(RECV_QID, QUEUE_IRQ_SRC_NOT_EMPTY, irqhandler, NULL);
+	tasklet_init(&crypto_done_tasklet, crypto_done_action, 0);
+
+	qmgr_enable_irq(RECV_QID);
+	return 0;
+err:
+	if (ctx_pool)
+		dma_pool_destroy(ctx_pool);
+	if (buffer_pool)
+		dma_pool_destroy(buffer_pool);
+	npe_release(npe_c);
+	return ret;
+}
+
+static void release_ixp_crypto(void)
+{
+	qmgr_disable_irq(RECV_QID);
+	tasklet_kill(&crypto_done_tasklet);
+
+	qmgr_release_queue(SEND_QID);
+	qmgr_release_queue(RECV_QID);
+
+	dma_pool_destroy(ctx_pool);
+	dma_pool_destroy(buffer_pool);
+
+	npe_release(npe_c);
+
+	if (crypt_virt) {
+		dma_free_coherent(dev,
+			NPE_QLEN_TOTAL * sizeof( struct crypt_ctl),
+			crypt_virt, crypt_phys);
+	}
+	return;
+}
+
+static void reset_sa_dir(struct ix_sa_dir *dir)
+{
+	memset(dir->npe_ctx, 0, NPE_CTX_LEN);
+	dir->npe_ctx_idx = 0;
+	dir->npe_mode = 0;
+}
+
+static int init_sa_dir(struct ix_sa_dir *dir)
+{
+	dir->npe_ctx = dma_pool_alloc(ctx_pool, GFP_KERNEL, &dir->npe_ctx_phys);
+	if (!dir->npe_ctx) {
+		return -ENOMEM;
+	}
+	reset_sa_dir(dir);
+	return 0;
+}
+
+static void free_sa_dir(struct ix_sa_dir *dir)
+{
+	memset(dir->npe_ctx, 0, NPE_CTX_LEN);
+	dma_pool_free(ctx_pool, dir->npe_ctx, dir->npe_ctx_phys);
+}
+
+static int init_tfm(struct crypto_tfm *tfm)
+{
+	struct ixp_ctx *ctx = crypto_tfm_ctx(tfm);
+	int ret;
+
+	atomic_set(&ctx->configuring, 0);
+	ret = init_sa_dir(&ctx->encrypt);
+	if (ret)
+		return ret;
+	ret = init_sa_dir(&ctx->decrypt);
+	if (ret) {
+		free_sa_dir(&ctx->encrypt);
+	}
+	return ret;
+}
+
+static int init_tfm_ablk(struct crypto_tfm *tfm)
+{
+	tfm->crt_ablkcipher.reqsize = sizeof(struct ablk_ctx);
+	return init_tfm(tfm);
+}
+
+static int init_tfm_aead(struct crypto_tfm *tfm)
+{
+	tfm->crt_aead.reqsize = sizeof(struct aead_ctx);
+	return init_tfm(tfm);
+}
+
+static void exit_tfm(struct crypto_tfm *tfm)
+{
+	struct ixp_ctx *ctx = crypto_tfm_ctx(tfm);
+	free_sa_dir(&ctx->encrypt);
+	free_sa_dir(&ctx->decrypt);
+}
+
+static int register_chain_var(struct crypto_tfm *tfm, u8 xpad, u32 target,
+		int init_len, u32 ctx_addr, const u8 *key, int key_len)
+{
+	struct ixp_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct crypt_ctl *crypt;
+	struct buffer_desc *buf;
+	int i;
+	u8 *pad;
+	u32 pad_phys, buf_phys;
+
+	BUILD_BUG_ON(NPE_CTX_LEN < HMAC_PAD_BLOCKLEN);
+	pad = dma_pool_alloc(ctx_pool, GFP_KERNEL, &pad_phys);
+	if (!pad)
+		return -ENOMEM;
+	buf = dma_pool_alloc(buffer_pool, GFP_KERNEL, &buf_phys);
+	if (!buf) {
+		dma_pool_free(ctx_pool, pad, pad_phys);
+		return -ENOMEM;
+	}
+	crypt = get_crypt_desc_emerg();
+	if (!crypt) {
+		dma_pool_free(ctx_pool, pad, pad_phys);
+		dma_pool_free(buffer_pool, buf, buf_phys);
+		return -EAGAIN;
+	}
+
+	memcpy(pad, key, key_len);
+	memset(pad + key_len, 0, HMAC_PAD_BLOCKLEN - key_len);
+	for (i = 0; i < HMAC_PAD_BLOCKLEN; i++) {
+		pad[i] ^= xpad;
+	}
+
+	crypt->data.tfm = tfm;
+	crypt->regist_ptr = pad;
+	crypt->regist_buf = buf;
+
+	crypt->auth_offs = 0;
+	crypt->auth_len = HMAC_PAD_BLOCKLEN;
+	crypt->crypto_ctx = ctx_addr;
+	crypt->src_buf = buf_phys;
+	crypt->icv_rev_aes = target;
+	crypt->mode = NPE_OP_HASH_GEN_ICV;
+	crypt->init_len = init_len;
+	crypt->ctl_flags |= CTL_FLAG_GEN_ICV;
+
+	buf->next = 0;
+	buf->buf_len = HMAC_PAD_BLOCKLEN;
+	buf->pkt_len = 0;
+	buf->phys_addr = pad_phys;
+
+	atomic_inc(&ctx->configuring);
+	qmgr_put_entry(SEND_QID, crypt_virt2phys(crypt));
+	BUG_ON(qmgr_stat_overflow(SEND_QID));
+	return 0;
+}
+
+static int setup_auth(struct crypto_tfm *tfm, int encrypt, unsigned authsize,
+		const u8 *key, int key_len, unsigned digest_len)
+{
+	u32 itarget, otarget, npe_ctx_addr;
+	unsigned char *cinfo;
+	int init_len, ret = 0;
+	u32 cfgword;
+	struct ix_sa_dir *dir;
+	struct ixp_ctx *ctx = crypto_tfm_ctx(tfm);
+	const struct ix_hash_algo *algo;
+
+	dir = encrypt ? &ctx->encrypt : &ctx->decrypt;
+	cinfo = dir->npe_ctx + dir->npe_ctx_idx;
+	algo = ix_hash(tfm);
+
+	/* write cfg word to cryptinfo */
+	cfgword = algo->cfgword | ( authsize << 6); /* (authsize/4) << 8 */
+	*(u32*)cinfo = cpu_to_be32(cfgword);
+	cinfo += sizeof(cfgword);
+
+	/* write ICV to cryptinfo */
+	memcpy(cinfo, algo->icv, digest_len);
+	cinfo += digest_len;
+
+	itarget = dir->npe_ctx_phys + dir->npe_ctx_idx
+				+ sizeof(algo->cfgword);
+	otarget = itarget + digest_len;
+	init_len = cinfo - (dir->npe_ctx + dir->npe_ctx_idx);
+	npe_ctx_addr = dir->npe_ctx_phys + dir->npe_ctx_idx;
+
+	dir->npe_ctx_idx += init_len;
+	dir->npe_mode |= NPE_OP_HASH_ENABLE;
+
+	if (!encrypt)
+		dir->npe_mode |= NPE_OP_HASH_VERIFY;
+
+	ret = register_chain_var(tfm, HMAC_OPAD_VALUE, otarget,
+			init_len, npe_ctx_addr, key, key_len);
+	if (ret)
+		return ret;
+	return register_chain_var(tfm, HMAC_IPAD_VALUE, itarget,
+			init_len, npe_ctx_addr, key, key_len);
+}
+
+static int gen_rev_aes_key(struct crypto_tfm *tfm)
+{
+	struct crypt_ctl *crypt;
+	struct ixp_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct ix_sa_dir *dir = &ctx->decrypt;
+
+	crypt = get_crypt_desc_emerg();
+	if (!crypt) {
+		return -EAGAIN;
+	}
+	*(u32*)dir->npe_ctx |= cpu_to_be32(CIPH_ENCR);
+
+	crypt->data.tfm = tfm;
+	crypt->crypt_offs = 0;
+	crypt->crypt_len = AES_BLOCK128;
+	crypt->src_buf = 0;
+	crypt->crypto_ctx = dir->npe_ctx_phys;
+	crypt->icv_rev_aes = dir->npe_ctx_phys + sizeof(u32);
+	crypt->mode = NPE_OP_ENC_GEN_KEY;
+	crypt->init_len = dir->npe_ctx_idx;
+	crypt->ctl_flags |= CTL_FLAG_GEN_REVAES;
+
+	atomic_inc(&ctx->configuring);
+	qmgr_put_entry(SEND_QID, crypt_virt2phys(crypt));
+	BUG_ON(qmgr_stat_overflow(SEND_QID));
+	return 0;
+}
+
+static int setup_cipher(struct crypto_tfm *tfm, int encrypt,
+		const u8 *key, int key_len)
+{
+	u8 *cinfo;
+	u32 cipher_cfg;
+	u32 keylen_cfg = 0;
+	struct ix_sa_dir *dir;
+	struct ixp_ctx *ctx = crypto_tfm_ctx(tfm);
+	u32 *flags = &tfm->crt_flags;
+
+	dir = encrypt ? &ctx->encrypt : &ctx->decrypt;
+	cinfo = dir->npe_ctx;
+
+	if (encrypt) {
+		cipher_cfg = cipher_cfg_enc(tfm);
+		dir->npe_mode |= NPE_OP_CRYPT_ENCRYPT;
+	} else {
+		cipher_cfg = cipher_cfg_dec(tfm);
+	}
+	if (cipher_cfg & MOD_AES) {
+		switch (key_len) {
+			case 16: keylen_cfg = MOD_AES128 | KEYLEN_128; break;
+			case 24: keylen_cfg = MOD_AES192 | KEYLEN_192; break;
+			case 32: keylen_cfg = MOD_AES256 | KEYLEN_256; break;
+			default:
+				*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+				return -EINVAL;
+		}
+		cipher_cfg |= keylen_cfg;
+	} else if (cipher_cfg & MOD_3DES) {
+		const u32 *K = (const u32 *)key;
+		if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
+			     !((K[2] ^ K[4]) | (K[3] ^ K[5]))))
+		{
+			*flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
+			return -EINVAL;
+		}
+	} else {
+		u32 tmp[DES_EXPKEY_WORDS];
+		if (des_ekey(tmp, key) == 0) {
+			*flags |= CRYPTO_TFM_RES_WEAK_KEY;
+		}
+	}
+	/* write cfg word to cryptinfo */
+	*(u32*)cinfo = cpu_to_be32(cipher_cfg);
+	cinfo += sizeof(cipher_cfg);
+
+	/* write cipher key to cryptinfo */
+	memcpy(cinfo, key, key_len);
+	/* NPE wants keylen set to DES3_EDE_KEY_SIZE even for single DES */
+	if (key_len < DES3_EDE_KEY_SIZE && !(cipher_cfg & MOD_AES)) {
+		memset(cinfo + key_len, 0, DES3_EDE_KEY_SIZE -key_len);
+		key_len = DES3_EDE_KEY_SIZE;
+	}
+	dir->npe_ctx_idx = sizeof(cipher_cfg) + key_len;
+	dir->npe_mode |= NPE_OP_CRYPT_ENABLE;
+	if ((cipher_cfg & MOD_AES) && !encrypt) {
+		return gen_rev_aes_key(tfm);
+	}
+	return 0;
+}
+
+static int count_sg(struct scatterlist *sg, int nbytes)
+{
+	int i;
+	for (i = 0; nbytes > 0; i++, sg = sg_next(sg))
+		nbytes -= sg->length;
+	return i;
+}
+
+static struct buffer_desc *chainup_buffers(struct scatterlist *sg,
+			unsigned nbytes, struct buffer_desc *buf, gfp_t flags)
+{
+	int nents = 0;
+
+	while (nbytes > 0) {
+		struct buffer_desc *next_buf;
+		u32 next_buf_phys;
+		unsigned len = min(nbytes, sg_dma_len(sg));
+
+		nents++;
+		nbytes -= len;
+		if (!buf->phys_addr) {
+			buf->phys_addr = sg_dma_address(sg);
+			buf->buf_len = len;
+			buf->next = NULL;
+			buf->phys_next = 0;
+			goto next;
+		}
+		/* Two consecutive chunks on one page may be handled by the old
+		 * buffer descriptor, increased by the length of the new one
+		 */
+		if (sg_dma_address(sg) == buf->phys_addr + buf->buf_len) {
+			buf->buf_len += len;
+			goto next;
+		}
+		next_buf = dma_pool_alloc(buffer_pool, flags, &next_buf_phys);
+		if (!next_buf)
+			return NULL;
+		buf->next = next_buf;
+		buf->phys_next = next_buf_phys;
+
+		buf = next_buf;
+		buf->next = NULL;
+		buf->phys_next = 0;
+		buf->phys_addr = sg_dma_address(sg);
+		buf->buf_len = len;
+next:
+		if (nbytes > 0) {
+			sg = sg_next(sg);
+		}
+	}
+	return buf;
+}
+
+static int ablk_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
+			unsigned int key_len)
+{
+	struct ixp_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+	u32 *flags = &tfm->base.crt_flags;
+	int ret;
+
+	init_completion(&ctx->completion);
+	atomic_inc(&ctx->configuring);
+
+	reset_sa_dir(&ctx->encrypt);
+	reset_sa_dir(&ctx->decrypt);
+
+	ctx->encrypt.npe_mode = NPE_OP_HMAC_DISABLE;
+	ctx->decrypt.npe_mode = NPE_OP_HMAC_DISABLE;
+
+	ret = setup_cipher(&tfm->base, 0, key, key_len);
+	if (ret)
+		goto out;
+	ret = setup_cipher(&tfm->base, 1, key, key_len);
+	if (ret)
+		goto out;
+
+	if (*flags & CRYPTO_TFM_RES_WEAK_KEY) {
+		if (*flags & CRYPTO_TFM_REQ_WEAK_KEY) {
+			ret = -EINVAL;
+		} else {
+			*flags &= ~CRYPTO_TFM_RES_WEAK_KEY;
+		}
+	}
+out:
+	if (!atomic_dec_and_test(&ctx->configuring))
+		wait_for_completion(&ctx->completion);
+	return ret;
+}
+
+static int ablk_rfc3686_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
+		unsigned int key_len)
+{
+	struct ixp_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+
+	/* the nonce is stored in bytes at end of key */
+	if (key_len < CTR_RFC3686_NONCE_SIZE)
+		return -EINVAL;
+
+	memcpy(ctx->nonce, key + (key_len - CTR_RFC3686_NONCE_SIZE),
+			CTR_RFC3686_NONCE_SIZE);
+
+	key_len -= CTR_RFC3686_NONCE_SIZE;
+	return ablk_setkey(tfm, key, key_len);
+}
+
+static int ablk_perform(struct ablkcipher_request *req, int encrypt)
+{
+	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct ixp_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+	unsigned ivsize = crypto_ablkcipher_ivsize(tfm);
+	int ret = -ENOMEM;
+	struct ix_sa_dir *dir;
+	struct crypt_ctl *crypt;
+	unsigned int nbytes = req->nbytes, nents;
+	enum dma_data_direction src_direction = DMA_BIDIRECTIONAL;
+	struct ablk_ctx *req_ctx = ablkcipher_request_ctx(req);
+	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
+				GFP_KERNEL : GFP_ATOMIC;
+
+	if (qmgr_stat_full(SEND_QID))
+		return -EAGAIN;
+	if (atomic_read(&ctx->configuring))
+		return -EAGAIN;
+
+	dir = encrypt ? &ctx->encrypt : &ctx->decrypt;
+
+	crypt = get_crypt_desc();
+	if (!crypt)
+		return ret;
+
+	crypt->data.ablk_req = req;
+	crypt->crypto_ctx = dir->npe_ctx_phys;
+	crypt->mode = dir->npe_mode;
+	crypt->init_len = dir->npe_ctx_idx;
+
+	crypt->crypt_offs = 0;
+	crypt->crypt_len = nbytes;
+
+	BUG_ON(ivsize && !req->info);
+	memcpy(crypt->iv, req->info, ivsize);
+	if (req->src != req->dst) {
+		crypt->mode |= NPE_OP_NOT_IN_PLACE;
+		nents = count_sg(req->dst, nbytes);
+		/* This was never tested by Intel
+		 * for more than one dst buffer, I think. */
+		BUG_ON(nents != 1);
+		req_ctx->dst_nents = nents;
+		dma_map_sg(dev, req->dst, nents, DMA_FROM_DEVICE);
+		req_ctx->dst = dma_pool_alloc(buffer_pool, flags,&crypt->dst_buf);
+		if (!req_ctx->dst)
+			goto unmap_sg_dest;
+		req_ctx->dst->phys_addr = 0;
+		if (!chainup_buffers(req->dst, nbytes, req_ctx->dst, flags))
+			goto free_buf_dest;
+		src_direction = DMA_TO_DEVICE;
+	} else {
+		req_ctx->dst = NULL;
+		req_ctx->dst_nents = 0;
+	}
+	nents = count_sg(req->src, nbytes);
+	req_ctx->src_nents = nents;
+	dma_map_sg(dev, req->src, nents, src_direction);
+
+	req_ctx->src = dma_pool_alloc(buffer_pool, flags, &crypt->src_buf);
+	if (!req_ctx->src)
+		goto unmap_sg_src;
+	req_ctx->src->phys_addr = 0;
+	if (!chainup_buffers(req->src, nbytes, req_ctx->src, flags))
+		goto free_buf_src;
+
+	crypt->ctl_flags |= CTL_FLAG_PERFORM_ABLK;
+	qmgr_put_entry(SEND_QID, crypt_virt2phys(crypt));
+	BUG_ON(qmgr_stat_overflow(SEND_QID));
+	return -EINPROGRESS;
+
+free_buf_src:
+	free_buf_chain(req_ctx->src, crypt->src_buf);
+unmap_sg_src:
+	dma_unmap_sg(dev, req->src, req_ctx->src_nents, src_direction);
+free_buf_dest:
+	if (req->src != req->dst) {
+		free_buf_chain(req_ctx->dst, crypt->dst_buf);
+unmap_sg_dest:
+		dma_unmap_sg(dev, req->src, req_ctx->dst_nents,
+			DMA_FROM_DEVICE);
+	}
+	crypt->ctl_flags = CTL_FLAG_UNUSED;
+	return ret;
+}
+
+static int ablk_encrypt(struct ablkcipher_request *req)
+{
+	return ablk_perform(req, 1);
+}
+
+static int ablk_decrypt(struct ablkcipher_request *req)
+{
+	return ablk_perform(req, 0);
+}
+
+static int ablk_rfc3686_crypt(struct ablkcipher_request *req)
+{
+	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct ixp_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+	u8 iv[CTR_RFC3686_BLOCK_SIZE];
+	u8 *info = req->info;
+	int ret;
+
+	/* set up counter block */
+        memcpy(iv, ctx->nonce, CTR_RFC3686_NONCE_SIZE);
+	memcpy(iv + CTR_RFC3686_NONCE_SIZE, info, CTR_RFC3686_IV_SIZE);
+
+	/* initialize counter portion of counter block */
+	*(__be32 *)(iv + CTR_RFC3686_NONCE_SIZE + CTR_RFC3686_IV_SIZE) =
+		cpu_to_be32(1);
+
+	req->info = iv;
+	ret = ablk_perform(req, 1);
+	req->info = info;
+	return ret;
+}
+
+static int hmac_inconsistent(struct scatterlist *sg, unsigned start,
+		unsigned int nbytes)
+{
+	int offset = 0;
+
+	if (!nbytes)
+		return 0;
+
+	for (;;) {
+		if (start < offset + sg->length)
+			break;
+
+		offset += sg->length;
+		sg = sg_next(sg);
+	}
+	return (start + nbytes > offset + sg->length);
+}
+
+static int aead_perform(struct aead_request *req, int encrypt,
+		int cryptoffset, int eff_cryptlen, u8 *iv)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct ixp_ctx *ctx = crypto_aead_ctx(tfm);
+	unsigned ivsize = crypto_aead_ivsize(tfm);
+	unsigned authsize = crypto_aead_authsize(tfm);
+	int ret = -ENOMEM;
+	struct ix_sa_dir *dir;
+	struct crypt_ctl *crypt;
+	unsigned int cryptlen, nents;
+	struct buffer_desc *buf;
+	struct aead_ctx *req_ctx = aead_request_ctx(req);
+	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
+				GFP_KERNEL : GFP_ATOMIC;
+
+	if (qmgr_stat_full(SEND_QID))
+		return -EAGAIN;
+	if (atomic_read(&ctx->configuring))
+		return -EAGAIN;
+
+	if (encrypt) {
+		dir = &ctx->encrypt;
+		cryptlen = req->cryptlen;
+	} else {
+		dir = &ctx->decrypt;
+		/* req->cryptlen includes the authsize when decrypting */
+		cryptlen = req->cryptlen -authsize;
+		eff_cryptlen -= authsize;
+	}
+	crypt = get_crypt_desc();
+	if (!crypt)
+		return ret;
+
+	crypt->data.aead_req = req;
+	crypt->crypto_ctx = dir->npe_ctx_phys;
+	crypt->mode = dir->npe_mode;
+	crypt->init_len = dir->npe_ctx_idx;
+
+	crypt->crypt_offs = cryptoffset;
+	crypt->crypt_len = eff_cryptlen;
+
+	crypt->auth_offs = 0;
+	crypt->auth_len = req->assoclen + ivsize + cryptlen;
+	BUG_ON(ivsize && !req->iv);
+	memcpy(crypt->iv, req->iv, ivsize);
+
+	if (req->src != req->dst) {
+		BUG(); /* -ENOTSUP because of my lazyness */
+	}
+
+	req_ctx->buffer = dma_pool_alloc(buffer_pool, flags, &crypt->src_buf);
+	if (!req_ctx->buffer)
+		goto out;
+	req_ctx->buffer->phys_addr = 0;
+	/* ASSOC data */
+	nents = count_sg(req->assoc, req->assoclen);
+	req_ctx->assoc_nents = nents;
+	dma_map_sg(dev, req->assoc, nents, DMA_TO_DEVICE);
+	buf = chainup_buffers(req->assoc, req->assoclen, req_ctx->buffer,flags);
+	if (!buf)
+		goto unmap_sg_assoc;
+	/* IV */
+	sg_init_table(&req_ctx->ivlist, 1);
+	sg_set_buf(&req_ctx->ivlist, iv, ivsize);
+	dma_map_sg(dev, &req_ctx->ivlist, 1, DMA_BIDIRECTIONAL);
+	buf = chainup_buffers(&req_ctx->ivlist, ivsize, buf, flags);
+	if (!buf)
+		goto unmap_sg_iv;
+	if (unlikely(hmac_inconsistent(req->src, cryptlen, authsize))) {
+		/* The 12 hmac bytes are scattered,
+		 * we need to copy them into a safe buffer */
+		req_ctx->hmac_virt = dma_pool_alloc(buffer_pool, flags,
+				&crypt->icv_rev_aes);
+		if (unlikely(!req_ctx->hmac_virt))
+			goto unmap_sg_iv;
+		if (!encrypt) {
+			scatterwalk_map_and_copy(req_ctx->hmac_virt,
+				req->src, cryptlen, authsize, 0);
+		}
+		req_ctx->encrypt = encrypt;
+	} else {
+		req_ctx->hmac_virt = NULL;
+	}
+	/* Crypt */
+	nents = count_sg(req->src, cryptlen + authsize);
+	req_ctx->src_nents = nents;
+	dma_map_sg(dev, req->src, nents, DMA_BIDIRECTIONAL);
+	buf = chainup_buffers(req->src, cryptlen + authsize, buf, flags);
+	if (!buf)
+		goto unmap_sg_src;
+	if (!req_ctx->hmac_virt) {
+		crypt->icv_rev_aes = buf->phys_addr + buf->buf_len - authsize;
+	}
+	crypt->ctl_flags |= CTL_FLAG_PERFORM_AEAD;
+	qmgr_put_entry(SEND_QID, crypt_virt2phys(crypt));
+	BUG_ON(qmgr_stat_overflow(SEND_QID));
+	return -EINPROGRESS;
+unmap_sg_src:
+	dma_unmap_sg(dev, req->src, req_ctx->src_nents, DMA_BIDIRECTIONAL);
+	if (req_ctx->hmac_virt) {
+		dma_pool_free(buffer_pool, req_ctx->hmac_virt,
+				crypt->icv_rev_aes);
+	}
+unmap_sg_iv:
+	dma_unmap_sg(dev, &req_ctx->ivlist, 1, DMA_BIDIRECTIONAL);
+unmap_sg_assoc:
+	dma_unmap_sg(dev, req->assoc, req_ctx->assoc_nents, DMA_TO_DEVICE);
+	free_buf_chain(req_ctx->buffer, crypt->src_buf);
+out:
+	crypt->ctl_flags = CTL_FLAG_UNUSED;
+	return ret;
+}
+
+static int aead_setup(struct crypto_aead *tfm, unsigned int authsize)
+{
+	struct ixp_ctx *ctx = crypto_aead_ctx(tfm);
+	u32 *flags = &tfm->base.crt_flags;
+	unsigned digest_len = crypto_aead_alg(tfm)->maxauthsize;
+	int ret;
+
+	if (!ctx->enckey_len && !ctx->authkey_len)
+		return 0;
+	init_completion(&ctx->completion);
+	atomic_inc(&ctx->configuring);
+
+	reset_sa_dir(&ctx->encrypt);
+	reset_sa_dir(&ctx->decrypt);
+
+	ret = setup_cipher(&tfm->base, 0, ctx->enckey, ctx->enckey_len);
+	if (ret)
+		goto out;
+	ret = setup_cipher(&tfm->base, 1, ctx->enckey, ctx->enckey_len);
+	if (ret)
+		goto out;
+	ret = setup_auth(&tfm->base, 0, authsize, ctx->authkey,
+			ctx->authkey_len, digest_len);
+	if (ret)
+		goto out;
+	ret = setup_auth(&tfm->base, 1, authsize,  ctx->authkey,
+			ctx->authkey_len, digest_len);
+	if (ret)
+		goto out;
+
+	if (*flags & CRYPTO_TFM_RES_WEAK_KEY) {
+		if (*flags & CRYPTO_TFM_REQ_WEAK_KEY) {
+			ret = -EINVAL;
+			goto out;
+		} else {
+			*flags &= ~CRYPTO_TFM_RES_WEAK_KEY;
+		}
+	}
+out:
+	if (!atomic_dec_and_test(&ctx->configuring))
+		wait_for_completion(&ctx->completion);
+	return ret;
+}
+
+static int aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
+{
+	int max = crypto_aead_alg(tfm)->maxauthsize >> 2;
+
+	if ((authsize>>2) < 1 || (authsize>>2) > max || (authsize & 3))
+		return -EINVAL;
+	return aead_setup(tfm, authsize);
+}
+
+static int aead_setkey(struct crypto_aead *tfm, const u8 *key,
+			unsigned int keylen)
+{
+	struct ixp_ctx *ctx = crypto_aead_ctx(tfm);
+	struct rtattr *rta = (struct rtattr *)key;
+	struct crypto_authenc_key_param *param;
+
+	if (!RTA_OK(rta, keylen))
+		goto badkey;
+	if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
+		goto badkey;
+	if (RTA_PAYLOAD(rta) < sizeof(*param))
+		goto badkey;
+
+	param = RTA_DATA(rta);
+	ctx->enckey_len = be32_to_cpu(param->enckeylen);
+
+	key += RTA_ALIGN(rta->rta_len);
+	keylen -= RTA_ALIGN(rta->rta_len);
+
+	if (keylen < ctx->enckey_len)
+		goto badkey;
+
+	ctx->authkey_len = keylen - ctx->enckey_len;
+	memcpy(ctx->enckey, key + ctx->authkey_len, ctx->enckey_len);
+	memcpy(ctx->authkey, key, ctx->authkey_len);
+
+	return aead_setup(tfm, crypto_aead_authsize(tfm));
+badkey:
+	ctx->enckey_len = 0;
+	crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+	return -EINVAL;
+}
+
+static int aead_encrypt(struct aead_request *req)
+{
+	unsigned ivsize = crypto_aead_ivsize(crypto_aead_reqtfm(req));
+	return aead_perform(req, 1, req->assoclen + ivsize,
+			req->cryptlen, req->iv);
+}
+
+static int aead_decrypt(struct aead_request *req)
+{
+	unsigned ivsize = crypto_aead_ivsize(crypto_aead_reqtfm(req));
+	return aead_perform(req, 0, req->assoclen + ivsize,
+			req->cryptlen, req->iv);
+}
+
+static int aead_givencrypt(struct aead_givcrypt_request *req)
+{
+	struct crypto_aead *tfm = aead_givcrypt_reqtfm(req);
+	struct ixp_ctx *ctx = crypto_aead_ctx(tfm);
+	unsigned len, ivsize = crypto_aead_ivsize(tfm);
+	__be64 seq;
+
+	/* copied from eseqiv.c */
+	if (!ctx->salted) {
+		get_random_bytes(ctx->salt, ivsize);
+		ctx->salted = 1;
+	}
+	memcpy(req->areq.iv, ctx->salt, ivsize);
+	len = ivsize;
+	if (ivsize > sizeof(u64)) {
+		memset(req->giv, 0, ivsize - sizeof(u64));
+		len = sizeof(u64);
+	}
+	seq = cpu_to_be64(req->seq);
+	memcpy(req->giv + ivsize - len, &seq, len);
+	return aead_perform(&req->areq, 1, req->areq.assoclen,
+			req->areq.cryptlen +ivsize, req->giv);
+}
+
+static struct ixp_alg ixp4xx_algos[] = {
+{
+	.crypto	= {
+		.cra_name	= "cbc(des)",
+		.cra_blocksize	= DES_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= DES_KEY_SIZE,
+			.max_keysize	= DES_KEY_SIZE,
+			.ivsize		= DES_BLOCK_SIZE,
+			.geniv		= "eseqiv",
+			}
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_DES | MOD_CBC_ENC | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_DES | MOD_CBC_DEC | KEYLEN_192,
+
+}, {
+	.crypto	= {
+		.cra_name	= "ecb(des)",
+		.cra_blocksize	= DES_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= DES_KEY_SIZE,
+			.max_keysize	= DES_KEY_SIZE,
+			}
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_DES | MOD_ECB | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_DES | MOD_ECB | KEYLEN_192,
+}, {
+	.crypto	= {
+		.cra_name	= "cbc(des3_ede)",
+		.cra_blocksize	= DES3_EDE_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= DES3_EDE_KEY_SIZE,
+			.max_keysize	= DES3_EDE_KEY_SIZE,
+			.ivsize		= DES3_EDE_BLOCK_SIZE,
+			.geniv		= "eseqiv",
+			}
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_3DES | MOD_CBC_ENC | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_3DES | MOD_CBC_DEC | KEYLEN_192,
+}, {
+	.crypto	= {
+		.cra_name	= "ecb(des3_ede)",
+		.cra_blocksize	= DES3_EDE_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= DES3_EDE_KEY_SIZE,
+			.max_keysize	= DES3_EDE_KEY_SIZE,
+			}
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_3DES | MOD_ECB | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_3DES | MOD_ECB | KEYLEN_192,
+}, {
+	.crypto	= {
+		.cra_name	= "cbc(aes)",
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= AES_MIN_KEY_SIZE,
+			.max_keysize	= AES_MAX_KEY_SIZE,
+			.ivsize		= AES_BLOCK_SIZE,
+			.geniv		= "eseqiv",
+			}
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_AES | MOD_CBC_ENC,
+	.cfg_dec = CIPH_DECR | MOD_AES | MOD_CBC_DEC,
+}, {
+	.crypto	= {
+		.cra_name	= "ecb(aes)",
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= AES_MIN_KEY_SIZE,
+			.max_keysize	= AES_MAX_KEY_SIZE,
+			}
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_AES | MOD_ECB,
+	.cfg_dec = CIPH_DECR | MOD_AES | MOD_ECB,
+}, {
+	.crypto	= {
+		.cra_name	= "ctr(aes)",
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= AES_MIN_KEY_SIZE,
+			.max_keysize	= AES_MAX_KEY_SIZE,
+			.ivsize		= AES_BLOCK_SIZE,
+			.geniv		= "eseqiv",
+			}
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_AES | MOD_CTR,
+	.cfg_dec = CIPH_ENCR | MOD_AES | MOD_CTR,
+}, {
+	.crypto	= {
+		.cra_name	= "rfc3686(ctr(aes))",
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_u		= { .ablkcipher = {
+			.min_keysize	= AES_MIN_KEY_SIZE,
+			.max_keysize	= AES_MAX_KEY_SIZE,
+			.ivsize		= AES_BLOCK_SIZE,
+			.geniv		= "eseqiv",
+			.setkey		= ablk_rfc3686_setkey,
+			.encrypt	= ablk_rfc3686_crypt,
+			.decrypt	= ablk_rfc3686_crypt }
+		}
+	},
+	.cfg_enc = CIPH_ENCR | MOD_AES | MOD_CTR,
+	.cfg_dec = CIPH_ENCR | MOD_AES | MOD_CTR,
+}, {
+	.crypto	= {
+		.cra_name	= "authenc(hmac(md5),cbc(des))",
+		.cra_blocksize	= DES_BLOCK_SIZE,
+		.cra_u		= { .aead = {
+			.ivsize		= DES_BLOCK_SIZE,
+			.maxauthsize	= MD5_DIGEST_SIZE,
+			}
+		}
+	},
+	.hash = &hash_alg_md5,
+	.cfg_enc = CIPH_ENCR | MOD_DES | MOD_CBC_ENC | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_DES | MOD_CBC_DEC | KEYLEN_192,
+}, {
+	.crypto	= {
+		.cra_name	= "authenc(hmac(md5),cbc(des3_ede))",
+		.cra_blocksize	= DES3_EDE_BLOCK_SIZE,
+		.cra_u		= { .aead = {
+			.ivsize		= DES3_EDE_BLOCK_SIZE,
+			.maxauthsize	= MD5_DIGEST_SIZE,
+			}
+		}
+	},
+	.hash = &hash_alg_md5,
+	.cfg_enc = CIPH_ENCR | MOD_3DES | MOD_CBC_ENC | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_3DES | MOD_CBC_DEC | KEYLEN_192,
+}, {
+	.crypto	= {
+		.cra_name	= "authenc(hmac(sha1),cbc(des))",
+		.cra_blocksize	= DES_BLOCK_SIZE,
+		.cra_u		= { .aead = {
+			.ivsize		= DES_BLOCK_SIZE,
+			.maxauthsize	= SHA1_DIGEST_SIZE,
+			}
+		}
+	},
+	.hash = &hash_alg_sha1,
+	.cfg_enc = CIPH_ENCR | MOD_DES | MOD_CBC_ENC | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_DES | MOD_CBC_DEC | KEYLEN_192,
+}, {
+	.crypto	= {
+		.cra_name	= "authenc(hmac(sha1),cbc(des3_ede))",
+		.cra_blocksize	= DES3_EDE_BLOCK_SIZE,
+		.cra_u		= { .aead = {
+			.ivsize		= DES3_EDE_BLOCK_SIZE,
+			.maxauthsize	= SHA1_DIGEST_SIZE,
+			}
+		}
+	},
+	.hash = &hash_alg_sha1,
+	.cfg_enc = CIPH_ENCR | MOD_3DES | MOD_CBC_ENC | KEYLEN_192,
+	.cfg_dec = CIPH_DECR | MOD_3DES | MOD_CBC_DEC | KEYLEN_192,
+}, {
+	.crypto	= {
+		.cra_name	= "authenc(hmac(md5),cbc(aes))",
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_u		= { .aead = {
+			.ivsize		= AES_BLOCK_SIZE,
+			.maxauthsize	= MD5_DIGEST_SIZE,
+			}
+		}
+	},
+	.hash = &hash_alg_md5,
+	.cfg_enc = CIPH_ENCR | MOD_AES | MOD_CBC_ENC,
+	.cfg_dec = CIPH_DECR | MOD_AES | MOD_CBC_DEC,
+}, {
+	.crypto	= {
+		.cra_name	= "authenc(hmac(sha1),cbc(aes))",
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_u		= { .aead = {
+			.ivsize		= AES_BLOCK_SIZE,
+			.maxauthsize	= SHA1_DIGEST_SIZE,
+			}
+		}
+	},
+	.hash = &hash_alg_sha1,
+	.cfg_enc = CIPH_ENCR | MOD_AES | MOD_CBC_ENC,
+	.cfg_dec = CIPH_DECR | MOD_AES | MOD_CBC_DEC,
+} };
+
+#define IXP_POSTFIX "-ixp4xx"
+static int __init ixp_module_init(void)
+{
+	int num = ARRAY_SIZE(ixp4xx_algos);
+	int i,err ;
+
+	if (platform_device_register(&pseudo_dev))
+		return -ENODEV;
+
+	spin_lock_init(&desc_lock);
+	spin_lock_init(&emerg_lock);
+
+	err = init_ixp_crypto();
+	if (err) {
+		platform_device_unregister(&pseudo_dev);
+		return err;
+	}
+	for (i=0; i< num; i++) {
+		struct crypto_alg *cra = &ixp4xx_algos[i].crypto;
+
+		if (snprintf(cra->cra_driver_name, CRYPTO_MAX_ALG_NAME,
+			"%s"IXP_POSTFIX, cra->cra_name) >=
+			CRYPTO_MAX_ALG_NAME)
+		{
+			continue;
+		}
+		if (!support_aes && (ixp4xx_algos[i].cfg_enc & MOD_AES)) {
+			continue;
+		}
+		if (!ixp4xx_algos[i].hash) {
+			/* block ciphers */
+			cra->cra_type = &crypto_ablkcipher_type;
+			cra->cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+					 CRYPTO_ALG_ASYNC;
+			if (!cra->cra_ablkcipher.setkey)
+				cra->cra_ablkcipher.setkey = ablk_setkey;
+			if (!cra->cra_ablkcipher.encrypt)
+				cra->cra_ablkcipher.encrypt = ablk_encrypt;
+			if (!cra->cra_ablkcipher.decrypt)
+				cra->cra_ablkcipher.decrypt = ablk_decrypt;
+			cra->cra_init = init_tfm_ablk;
+		} else {
+			/* authenc */
+			cra->cra_type = &crypto_aead_type;
+			cra->cra_flags = CRYPTO_ALG_TYPE_AEAD |
+					 CRYPTO_ALG_ASYNC;
+			cra->cra_aead.setkey = aead_setkey;
+			cra->cra_aead.setauthsize = aead_setauthsize;
+			cra->cra_aead.encrypt = aead_encrypt;
+			cra->cra_aead.decrypt = aead_decrypt;
+			cra->cra_aead.givencrypt = aead_givencrypt;
+			cra->cra_init = init_tfm_aead;
+		}
+		cra->cra_ctxsize = sizeof(struct ixp_ctx);
+		cra->cra_module = THIS_MODULE;
+		cra->cra_alignmask = 3;
+		cra->cra_priority = 300;
+		cra->cra_exit = exit_tfm;
+		if (crypto_register_alg(cra))
+			printk(KERN_ERR "Failed to register '%s'\n",
+				cra->cra_name);
+		else
+			ixp4xx_algos[i].registered = 1;
+	}
+	return 0;
+}
+
+static void __exit ixp_module_exit(void)
+{
+	int num = ARRAY_SIZE(ixp4xx_algos);
+	int i;
+
+	for (i=0; i< num; i++) {
+		if (ixp4xx_algos[i].registered)
+			crypto_unregister_alg(&ixp4xx_algos[i].crypto);
+	}
+	release_ixp_crypto();
+	platform_device_unregister(&pseudo_dev);
+}
+
+module_init(ixp_module_init);
+module_exit(ixp_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+MODULE_DESCRIPTION("IXP4xx hardware crypto");
+
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index bb30eb9b93e..54a2a166e56 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -385,12 +385,12 @@ static int __init padlock_init(void)
 	int ret;
 
 	if (!cpu_has_xcrypt) {
-		printk(KERN_ERR PFX "VIA PadLock not detected.\n");
+		printk(KERN_NOTICE PFX "VIA PadLock not detected.\n");
 		return -ENODEV;
 	}
 
 	if (!cpu_has_xcrypt_enabled) {
-		printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
+		printk(KERN_NOTICE PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
 		return -ENODEV;
 	}
 
diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c
index c666b4e0933..40d5680fa01 100644
--- a/drivers/crypto/padlock-sha.c
+++ b/drivers/crypto/padlock-sha.c
@@ -254,12 +254,12 @@ static int __init padlock_init(void)
 	int rc = -ENODEV;
 
 	if (!cpu_has_phe) {
-		printk(KERN_ERR PFX "VIA PadLock Hash Engine not detected.\n");
+		printk(KERN_NOTICE PFX "VIA PadLock Hash Engine not detected.\n");
 		return -ENODEV;
 	}
 
 	if (!cpu_has_phe_enabled) {
-		printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
+		printk(KERN_NOTICE PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
 		return -ENODEV;
 	}
 
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
new file mode 100644
index 00000000000..b11943dadef
--- /dev/null
+++ b/drivers/crypto/talitos.c
@@ -0,0 +1,1597 @@
+/*
+ * talitos - Freescale Integrated Security Engine (SEC) device driver
+ *
+ * Copyright (c) 2008 Freescale Semiconductor, Inc.
+ *
+ * Scatterlist Crypto API glue code copied from files with the following:
+ * Copyright (c) 2006-2007 Herbert Xu <herbert@gondor.apana.org.au>
+ *
+ * Crypto algorithm registration code copied from hifn driver:
+ * 2007+ Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/crypto.h>
+#include <linux/hw_random.h>
+#include <linux/of_platform.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+#include <linux/rtnetlink.h>
+
+#include <crypto/algapi.h>
+#include <crypto/aes.h>
+#include <crypto/des.h>
+#include <crypto/sha.h>
+#include <crypto/aead.h>
+#include <crypto/authenc.h>
+
+#include "talitos.h"
+
+#define TALITOS_TIMEOUT 100000
+#define TALITOS_MAX_DATA_LEN 65535
+
+#define DESC_TYPE(desc_hdr) ((be32_to_cpu(desc_hdr) >> 3) & 0x1f)
+#define PRIMARY_EU(desc_hdr) ((be32_to_cpu(desc_hdr) >> 28) & 0xf)
+#define SECONDARY_EU(desc_hdr) ((be32_to_cpu(desc_hdr) >> 16) & 0xf)
+
+/* descriptor pointer entry */
+struct talitos_ptr {
+	__be16 len;	/* length */
+	u8 j_extent;	/* jump to sg link table and/or extent */
+	u8 eptr;	/* extended address */
+	__be32 ptr;	/* address */
+};
+
+/* descriptor */
+struct talitos_desc {
+	__be32 hdr;			/* header high bits */
+	__be32 hdr_lo;			/* header low bits */
+	struct talitos_ptr ptr[7];	/* ptr/len pair array */
+};
+
+/**
+ * talitos_request - descriptor submission request
+ * @desc: descriptor pointer (kernel virtual)
+ * @dma_desc: descriptor's physical bus address
+ * @callback: whom to call when descriptor processing is done
+ * @context: caller context (optional)
+ */
+struct talitos_request {
+	struct talitos_desc *desc;
+	dma_addr_t dma_desc;
+	void (*callback) (struct device *dev, struct talitos_desc *desc,
+	                  void *context, int error);
+	void *context;
+};
+
+struct talitos_private {
+	struct device *dev;
+	struct of_device *ofdev;
+	void __iomem *reg;
+	int irq;
+
+	/* SEC version geometry (from device tree node) */
+	unsigned int num_channels;
+	unsigned int chfifo_len;
+	unsigned int exec_units;
+	unsigned int desc_types;
+
+	/* next channel to be assigned next incoming descriptor */
+	atomic_t last_chan;
+
+	/* per-channel request fifo */
+	struct talitos_request **fifo;
+
+	/*
+	 * length of the request fifo
+	 * fifo_len is chfifo_len rounded up to next power of 2
+	 * so we can use bitwise ops to wrap
+	 */
+	unsigned int fifo_len;
+
+	/* per-channel index to next free descriptor request */
+	int *head;
+
+	/* per-channel index to next in-progress/done descriptor request */
+	int *tail;
+
+	/* per-channel request submission (head) and release (tail) locks */
+	spinlock_t *head_lock;
+	spinlock_t *tail_lock;
+
+	/* request callback tasklet */
+	struct tasklet_struct done_task;
+	struct tasklet_struct error_task;
+
+	/* list of registered algorithms */
+	struct list_head alg_list;
+
+	/* hwrng device */
+	struct hwrng rng;
+};
+
+/*
+ * map virtual single (contiguous) pointer to h/w descriptor pointer
+ */
+static void map_single_talitos_ptr(struct device *dev,
+				   struct talitos_ptr *talitos_ptr,
+				   unsigned short len, void *data,
+				   unsigned char extent,
+				   enum dma_data_direction dir)
+{
+	talitos_ptr->len = cpu_to_be16(len);
+	talitos_ptr->ptr = cpu_to_be32(dma_map_single(dev, data, len, dir));
+	talitos_ptr->j_extent = extent;
+}
+
+/*
+ * unmap bus single (contiguous) h/w descriptor pointer
+ */
+static void unmap_single_talitos_ptr(struct device *dev,
+				     struct talitos_ptr *talitos_ptr,
+				     enum dma_data_direction dir)
+{
+	dma_unmap_single(dev, be32_to_cpu(talitos_ptr->ptr),
+			 be16_to_cpu(talitos_ptr->len), dir);
+}
+
+static int reset_channel(struct device *dev, int ch)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	unsigned int timeout = TALITOS_TIMEOUT;
+
+	setbits32(priv->reg + TALITOS_CCCR(ch), TALITOS_CCCR_RESET);
+
+	while ((in_be32(priv->reg + TALITOS_CCCR(ch)) & TALITOS_CCCR_RESET)
+	       && --timeout)
+		cpu_relax();
+
+	if (timeout == 0) {
+		dev_err(dev, "failed to reset channel %d\n", ch);
+		return -EIO;
+	}
+
+	/* set done writeback and IRQ */
+	setbits32(priv->reg + TALITOS_CCCR_LO(ch), TALITOS_CCCR_LO_CDWE |
+		  TALITOS_CCCR_LO_CDIE);
+
+	return 0;
+}
+
+static int reset_device(struct device *dev)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	unsigned int timeout = TALITOS_TIMEOUT;
+
+	setbits32(priv->reg + TALITOS_MCR, TALITOS_MCR_SWR);
+
+	while ((in_be32(priv->reg + TALITOS_MCR) & TALITOS_MCR_SWR)
+	       && --timeout)
+		cpu_relax();
+
+	if (timeout == 0) {
+		dev_err(dev, "failed to reset device\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+/*
+ * Reset and initialize the device
+ */
+static int init_device(struct device *dev)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	int ch, err;
+
+	/*
+	 * Master reset
+	 * errata documentation: warning: certain SEC interrupts
+	 * are not fully cleared by writing the MCR:SWR bit,
+	 * set bit twice to completely reset
+	 */
+	err = reset_device(dev);
+	if (err)
+		return err;
+
+	err = reset_device(dev);
+	if (err)
+		return err;
+
+	/* reset channels */
+	for (ch = 0; ch < priv->num_channels; ch++) {
+		err = reset_channel(dev, ch);
+		if (err)
+			return err;
+	}
+
+	/* enable channel done and error interrupts */
+	setbits32(priv->reg + TALITOS_IMR, TALITOS_IMR_INIT);
+	setbits32(priv->reg + TALITOS_IMR_LO, TALITOS_IMR_LO_INIT);
+
+	return 0;
+}
+
+/**
+ * talitos_submit - submits a descriptor to the device for processing
+ * @dev:	the SEC device to be used
+ * @desc:	the descriptor to be processed by the device
+ * @callback:	whom to call when processing is complete
+ * @context:	a handle for use by caller (optional)
+ *
+ * desc must contain valid dma-mapped (bus physical) address pointers.
+ * callback must check err and feedback in descriptor header
+ * for device processing status.
+ */
+static int talitos_submit(struct device *dev, struct talitos_desc *desc,
+			  void (*callback)(struct device *dev,
+					   struct talitos_desc *desc,
+					   void *context, int error),
+			  void *context)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	struct talitos_request *request;
+	unsigned long flags, ch;
+	int head;
+
+	/* select done notification */
+	desc->hdr |= DESC_HDR_DONE_NOTIFY;
+
+	/* emulate SEC's round-robin channel fifo polling scheme */
+	ch = atomic_inc_return(&priv->last_chan) & (priv->num_channels - 1);
+
+	spin_lock_irqsave(&priv->head_lock[ch], flags);
+
+	head = priv->head[ch];
+	request = &priv->fifo[ch][head];
+
+	if (request->desc) {
+		/* request queue is full */
+		spin_unlock_irqrestore(&priv->head_lock[ch], flags);
+		return -EAGAIN;
+	}
+
+	/* map descriptor and save caller data */
+	request->dma_desc = dma_map_single(dev, desc, sizeof(*desc),
+					   DMA_BIDIRECTIONAL);
+	request->callback = callback;
+	request->context = context;
+
+	/* increment fifo head */
+	priv->head[ch] = (priv->head[ch] + 1) & (priv->fifo_len - 1);
+
+	smp_wmb();
+	request->desc = desc;
+
+	/* GO! */
+	wmb();
+	out_be32(priv->reg + TALITOS_FF_LO(ch), request->dma_desc);
+
+	spin_unlock_irqrestore(&priv->head_lock[ch], flags);
+
+	return -EINPROGRESS;
+}
+
+/*
+ * process what was done, notify callback of error if not
+ */
+static void flush_channel(struct device *dev, int ch, int error, int reset_ch)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	struct talitos_request *request, saved_req;
+	unsigned long flags;
+	int tail, status;
+
+	spin_lock_irqsave(&priv->tail_lock[ch], flags);
+
+	tail = priv->tail[ch];
+	while (priv->fifo[ch][tail].desc) {
+		request = &priv->fifo[ch][tail];
+
+		/* descriptors with their done bits set don't get the error */
+		rmb();
+		if ((request->desc->hdr & DESC_HDR_DONE) == DESC_HDR_DONE)
+			status = 0;
+		else
+			if (!error)
+				break;
+			else
+				status = error;
+
+		dma_unmap_single(dev, request->dma_desc,
+			sizeof(struct talitos_desc), DMA_BIDIRECTIONAL);
+
+		/* copy entries so we can call callback outside lock */
+		saved_req.desc = request->desc;
+		saved_req.callback = request->callback;
+		saved_req.context = request->context;
+
+		/* release request entry in fifo */
+		smp_wmb();
+		request->desc = NULL;
+
+		/* increment fifo tail */
+		priv->tail[ch] = (tail + 1) & (priv->fifo_len - 1);
+
+		spin_unlock_irqrestore(&priv->tail_lock[ch], flags);
+		saved_req.callback(dev, saved_req.desc, saved_req.context,
+				   status);
+		/* channel may resume processing in single desc error case */
+		if (error && !reset_ch && status == error)
+			return;
+		spin_lock_irqsave(&priv->tail_lock[ch], flags);
+		tail = priv->tail[ch];
+	}
+
+	spin_unlock_irqrestore(&priv->tail_lock[ch], flags);
+}
+
+/*
+ * process completed requests for channels that have done status
+ */
+static void talitos_done(unsigned long data)
+{
+	struct device *dev = (struct device *)data;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	int ch;
+
+	for (ch = 0; ch < priv->num_channels; ch++)
+		flush_channel(dev, ch, 0, 0);
+}
+
+/*
+ * locate current (offending) descriptor
+ */
+static struct talitos_desc *current_desc(struct device *dev, int ch)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	int tail = priv->tail[ch];
+	dma_addr_t cur_desc;
+
+	cur_desc = in_be32(priv->reg + TALITOS_CDPR_LO(ch));
+
+	while (priv->fifo[ch][tail].dma_desc != cur_desc) {
+		tail = (tail + 1) & (priv->fifo_len - 1);
+		if (tail == priv->tail[ch]) {
+			dev_err(dev, "couldn't locate current descriptor\n");
+			return NULL;
+		}
+	}
+
+	return priv->fifo[ch][tail].desc;
+}
+
+/*
+ * user diagnostics; report root cause of error based on execution unit status
+ */
+static void report_eu_error(struct device *dev, int ch, struct talitos_desc *desc)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	int i;
+
+	switch (desc->hdr & DESC_HDR_SEL0_MASK) {
+	case DESC_HDR_SEL0_AFEU:
+		dev_err(dev, "AFEUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_AFEUISR),
+			in_be32(priv->reg + TALITOS_AFEUISR_LO));
+		break;
+	case DESC_HDR_SEL0_DEU:
+		dev_err(dev, "DEUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_DEUISR),
+			in_be32(priv->reg + TALITOS_DEUISR_LO));
+		break;
+	case DESC_HDR_SEL0_MDEUA:
+	case DESC_HDR_SEL0_MDEUB:
+		dev_err(dev, "MDEUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_MDEUISR),
+			in_be32(priv->reg + TALITOS_MDEUISR_LO));
+		break;
+	case DESC_HDR_SEL0_RNG:
+		dev_err(dev, "RNGUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_RNGUISR),
+			in_be32(priv->reg + TALITOS_RNGUISR_LO));
+		break;
+	case DESC_HDR_SEL0_PKEU:
+		dev_err(dev, "PKEUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_PKEUISR),
+			in_be32(priv->reg + TALITOS_PKEUISR_LO));
+		break;
+	case DESC_HDR_SEL0_AESU:
+		dev_err(dev, "AESUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_AESUISR),
+			in_be32(priv->reg + TALITOS_AESUISR_LO));
+		break;
+	case DESC_HDR_SEL0_CRCU:
+		dev_err(dev, "CRCUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_CRCUISR),
+			in_be32(priv->reg + TALITOS_CRCUISR_LO));
+		break;
+	case DESC_HDR_SEL0_KEU:
+		dev_err(dev, "KEUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_KEUISR),
+			in_be32(priv->reg + TALITOS_KEUISR_LO));
+		break;
+	}
+
+	switch (desc->hdr & DESC_HDR_SEL1_MASK) {
+	case DESC_HDR_SEL1_MDEUA:
+	case DESC_HDR_SEL1_MDEUB:
+		dev_err(dev, "MDEUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_MDEUISR),
+			in_be32(priv->reg + TALITOS_MDEUISR_LO));
+		break;
+	case DESC_HDR_SEL1_CRCU:
+		dev_err(dev, "CRCUISR 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_CRCUISR),
+			in_be32(priv->reg + TALITOS_CRCUISR_LO));
+		break;
+	}
+
+	for (i = 0; i < 8; i++)
+		dev_err(dev, "DESCBUF 0x%08x_%08x\n",
+			in_be32(priv->reg + TALITOS_DESCBUF(ch) + 8*i),
+			in_be32(priv->reg + TALITOS_DESCBUF_LO(ch) + 8*i));
+}
+
+/*
+ * recover from error interrupts
+ */
+static void talitos_error(unsigned long data)
+{
+	struct device *dev = (struct device *)data;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	unsigned int timeout = TALITOS_TIMEOUT;
+	int ch, error, reset_dev = 0, reset_ch = 0;
+	u32 isr, isr_lo, v, v_lo;
+
+	isr = in_be32(priv->reg + TALITOS_ISR);
+	isr_lo = in_be32(priv->reg + TALITOS_ISR_LO);
+
+	for (ch = 0; ch < priv->num_channels; ch++) {
+		/* skip channels without errors */
+		if (!(isr & (1 << (ch * 2 + 1))))
+			continue;
+
+		error = -EINVAL;
+
+		v = in_be32(priv->reg + TALITOS_CCPSR(ch));
+		v_lo = in_be32(priv->reg + TALITOS_CCPSR_LO(ch));
+
+		if (v_lo & TALITOS_CCPSR_LO_DOF) {
+			dev_err(dev, "double fetch fifo overflow error\n");
+			error = -EAGAIN;
+			reset_ch = 1;
+		}
+		if (v_lo & TALITOS_CCPSR_LO_SOF) {
+			/* h/w dropped descriptor */
+			dev_err(dev, "single fetch fifo overflow error\n");
+			error = -EAGAIN;
+		}
+		if (v_lo & TALITOS_CCPSR_LO_MDTE)
+			dev_err(dev, "master data transfer error\n");
+		if (v_lo & TALITOS_CCPSR_LO_SGDLZ)
+			dev_err(dev, "s/g data length zero error\n");
+		if (v_lo & TALITOS_CCPSR_LO_FPZ)
+			dev_err(dev, "fetch pointer zero error\n");
+		if (v_lo & TALITOS_CCPSR_LO_IDH)
+			dev_err(dev, "illegal descriptor header error\n");
+		if (v_lo & TALITOS_CCPSR_LO_IEU)
+			dev_err(dev, "invalid execution unit error\n");
+		if (v_lo & TALITOS_CCPSR_LO_EU)
+			report_eu_error(dev, ch, current_desc(dev, ch));
+		if (v_lo & TALITOS_CCPSR_LO_GB)
+			dev_err(dev, "gather boundary error\n");
+		if (v_lo & TALITOS_CCPSR_LO_GRL)
+			dev_err(dev, "gather return/length error\n");
+		if (v_lo & TALITOS_CCPSR_LO_SB)
+			dev_err(dev, "scatter boundary error\n");
+		if (v_lo & TALITOS_CCPSR_LO_SRL)
+			dev_err(dev, "scatter return/length error\n");
+
+		flush_channel(dev, ch, error, reset_ch);
+
+		if (reset_ch) {
+			reset_channel(dev, ch);
+		} else {
+			setbits32(priv->reg + TALITOS_CCCR(ch),
+				  TALITOS_CCCR_CONT);
+			setbits32(priv->reg + TALITOS_CCCR_LO(ch), 0);
+			while ((in_be32(priv->reg + TALITOS_CCCR(ch)) &
+			       TALITOS_CCCR_CONT) && --timeout)
+				cpu_relax();
+			if (timeout == 0) {
+				dev_err(dev, "failed to restart channel %d\n",
+					ch);
+				reset_dev = 1;
+			}
+		}
+	}
+	if (reset_dev || isr & ~TALITOS_ISR_CHERR || isr_lo) {
+		dev_err(dev, "done overflow, internal time out, or rngu error: "
+		        "ISR 0x%08x_%08x\n", isr, isr_lo);
+
+		/* purge request queues */
+		for (ch = 0; ch < priv->num_channels; ch++)
+			flush_channel(dev, ch, -EIO, 1);
+
+		/* reset and reinitialize the device */
+		init_device(dev);
+	}
+}
+
+static irqreturn_t talitos_interrupt(int irq, void *data)
+{
+	struct device *dev = data;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	u32 isr, isr_lo;
+
+	isr = in_be32(priv->reg + TALITOS_ISR);
+	isr_lo = in_be32(priv->reg + TALITOS_ISR_LO);
+
+	/* ack */
+	out_be32(priv->reg + TALITOS_ICR, isr);
+	out_be32(priv->reg + TALITOS_ICR_LO, isr_lo);
+
+	if (unlikely((isr & ~TALITOS_ISR_CHDONE) || isr_lo))
+		talitos_error((unsigned long)data);
+	else
+		if (likely(isr & TALITOS_ISR_CHDONE))
+			tasklet_schedule(&priv->done_task);
+
+	return (isr || isr_lo) ? IRQ_HANDLED : IRQ_NONE;
+}
+
+/*
+ * hwrng
+ */
+static int talitos_rng_data_present(struct hwrng *rng, int wait)
+{
+	struct device *dev = (struct device *)rng->priv;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	u32 ofl;
+	int i;
+
+	for (i = 0; i < 20; i++) {
+		ofl = in_be32(priv->reg + TALITOS_RNGUSR_LO) &
+		      TALITOS_RNGUSR_LO_OFL;
+		if (ofl || !wait)
+			break;
+		udelay(10);
+	}
+
+	return !!ofl;
+}
+
+static int talitos_rng_data_read(struct hwrng *rng, u32 *data)
+{
+	struct device *dev = (struct device *)rng->priv;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+
+	/* rng fifo requires 64-bit accesses */
+	*data = in_be32(priv->reg + TALITOS_RNGU_FIFO);
+	*data = in_be32(priv->reg + TALITOS_RNGU_FIFO_LO);
+
+	return sizeof(u32);
+}
+
+static int talitos_rng_init(struct hwrng *rng)
+{
+	struct device *dev = (struct device *)rng->priv;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	unsigned int timeout = TALITOS_TIMEOUT;
+
+	setbits32(priv->reg + TALITOS_RNGURCR_LO, TALITOS_RNGURCR_LO_SR);
+	while (!(in_be32(priv->reg + TALITOS_RNGUSR_LO) & TALITOS_RNGUSR_LO_RD)
+	       && --timeout)
+		cpu_relax();
+	if (timeout == 0) {
+		dev_err(dev, "failed to reset rng hw\n");
+		return -ENODEV;
+	}
+
+	/* start generating */
+	setbits32(priv->reg + TALITOS_RNGUDSR_LO, 0);
+
+	return 0;
+}
+
+static int talitos_register_rng(struct device *dev)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+
+	priv->rng.name		= dev_driver_string(dev),
+	priv->rng.init		= talitos_rng_init,
+	priv->rng.data_present	= talitos_rng_data_present,
+	priv->rng.data_read	= talitos_rng_data_read,
+	priv->rng.priv		= (unsigned long)dev;
+
+	return hwrng_register(&priv->rng);
+}
+
+static void talitos_unregister_rng(struct device *dev)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+
+	hwrng_unregister(&priv->rng);
+}
+
+/*
+ * crypto alg
+ */
+#define TALITOS_CRA_PRIORITY		3000
+#define TALITOS_MAX_KEY_SIZE		64
+#define TALITOS_MAX_IV_LENGTH		16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
+
+#define MD5_DIGEST_SIZE   16
+
+struct talitos_ctx {
+	struct device *dev;
+	__be32 desc_hdr_template;
+	u8 key[TALITOS_MAX_KEY_SIZE];
+	u8 iv[TALITOS_MAX_IV_LENGTH];
+	unsigned int keylen;
+	unsigned int enckeylen;
+	unsigned int authkeylen;
+	unsigned int authsize;
+};
+
+static int aead_authenc_setauthsize(struct crypto_aead *authenc,
+						 unsigned int authsize)
+{
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+
+	ctx->authsize = authsize;
+
+	return 0;
+}
+
+static int aead_authenc_setkey(struct crypto_aead *authenc,
+					    const u8 *key, unsigned int keylen)
+{
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	struct rtattr *rta = (void *)key;
+	struct crypto_authenc_key_param *param;
+	unsigned int authkeylen;
+	unsigned int enckeylen;
+
+	if (!RTA_OK(rta, keylen))
+		goto badkey;
+
+	if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
+		goto badkey;
+
+	if (RTA_PAYLOAD(rta) < sizeof(*param))
+		goto badkey;
+
+	param = RTA_DATA(rta);
+	enckeylen = be32_to_cpu(param->enckeylen);
+
+	key += RTA_ALIGN(rta->rta_len);
+	keylen -= RTA_ALIGN(rta->rta_len);
+
+	if (keylen < enckeylen)
+		goto badkey;
+
+	authkeylen = keylen - enckeylen;
+
+	if (keylen > TALITOS_MAX_KEY_SIZE)
+		goto badkey;
+
+	memcpy(&ctx->key, key, keylen);
+
+	ctx->keylen = keylen;
+	ctx->enckeylen = enckeylen;
+	ctx->authkeylen = authkeylen;
+
+	return 0;
+
+badkey:
+	crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
+	return -EINVAL;
+}
+
+/*
+ * ipsec_esp_edesc - s/w-extended ipsec_esp descriptor
+ * @src_nents: number of segments in input scatterlist
+ * @dst_nents: number of segments in output scatterlist
+ * @dma_len: length of dma mapped link_tbl space
+ * @dma_link_tbl: bus physical address of link_tbl
+ * @desc: h/w descriptor
+ * @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1)
+ *
+ * if decrypting (with authcheck), or either one of src_nents or dst_nents
+ * is greater than 1, an integrity check value is concatenated to the end
+ * of link_tbl data
+ */
+struct ipsec_esp_edesc {
+	int src_nents;
+	int dst_nents;
+	int dma_len;
+	dma_addr_t dma_link_tbl;
+	struct talitos_desc desc;
+	struct talitos_ptr link_tbl[0];
+};
+
+static void ipsec_esp_unmap(struct device *dev,
+			    struct ipsec_esp_edesc *edesc,
+			    struct aead_request *areq)
+{
+	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[6], DMA_FROM_DEVICE);
+	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[3], DMA_TO_DEVICE);
+	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE);
+	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[0], DMA_TO_DEVICE);
+
+	dma_unmap_sg(dev, areq->assoc, 1, DMA_TO_DEVICE);
+
+	if (areq->src != areq->dst) {
+		dma_unmap_sg(dev, areq->src, edesc->src_nents ? : 1,
+			     DMA_TO_DEVICE);
+		dma_unmap_sg(dev, areq->dst, edesc->dst_nents ? : 1,
+			     DMA_FROM_DEVICE);
+	} else {
+		dma_unmap_sg(dev, areq->src, edesc->src_nents ? : 1,
+			     DMA_BIDIRECTIONAL);
+	}
+
+	if (edesc->dma_len)
+		dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len,
+				 DMA_BIDIRECTIONAL);
+}
+
+/*
+ * ipsec_esp descriptor callbacks
+ */
+static void ipsec_esp_encrypt_done(struct device *dev,
+				   struct talitos_desc *desc, void *context,
+				   int err)
+{
+	struct aead_request *areq = context;
+	struct ipsec_esp_edesc *edesc =
+		 container_of(desc, struct ipsec_esp_edesc, desc);
+	struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	struct scatterlist *sg;
+	void *icvdata;
+
+	ipsec_esp_unmap(dev, edesc, areq);
+
+	/* copy the generated ICV to dst */
+	if (edesc->dma_len) {
+		icvdata = &edesc->link_tbl[edesc->src_nents +
+					   edesc->dst_nents + 1];
+		sg = sg_last(areq->dst, edesc->dst_nents);
+		memcpy((char *)sg_virt(sg) + sg->length - ctx->authsize,
+		       icvdata, ctx->authsize);
+	}
+
+	kfree(edesc);
+
+	aead_request_complete(areq, err);
+}
+
+static void ipsec_esp_decrypt_done(struct device *dev,
+				   struct talitos_desc *desc, void *context,
+				   int err)
+{
+	struct aead_request *req = context;
+	struct ipsec_esp_edesc *edesc =
+		 container_of(desc, struct ipsec_esp_edesc, desc);
+	struct crypto_aead *authenc = crypto_aead_reqtfm(req);
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	struct scatterlist *sg;
+	void *icvdata;
+
+	ipsec_esp_unmap(dev, edesc, req);
+
+	if (!err) {
+		/* auth check */
+		if (edesc->dma_len)
+			icvdata = &edesc->link_tbl[edesc->src_nents +
+						   edesc->dst_nents + 1];
+		else
+			icvdata = &edesc->link_tbl[0];
+
+		sg = sg_last(req->dst, edesc->dst_nents ? : 1);
+		err = memcmp(icvdata, (char *)sg_virt(sg) + sg->length -
+			     ctx->authsize, ctx->authsize) ? -EBADMSG : 0;
+	}
+
+	kfree(edesc);
+
+	aead_request_complete(req, err);
+}
+
+/*
+ * convert scatterlist to SEC h/w link table format
+ * stop at cryptlen bytes
+ */
+static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
+			   int cryptlen, struct talitos_ptr *link_tbl_ptr)
+{
+	int n_sg = sg_count;
+
+	while (n_sg--) {
+		link_tbl_ptr->ptr = cpu_to_be32(sg_dma_address(sg));
+		link_tbl_ptr->len = cpu_to_be16(sg_dma_len(sg));
+		link_tbl_ptr->j_extent = 0;
+		link_tbl_ptr++;
+		cryptlen -= sg_dma_len(sg);
+		sg = sg_next(sg);
+	}
+
+	/* adjust (decrease) last one (or two) entry's len to cryptlen */
+	link_tbl_ptr--;
+	while (link_tbl_ptr->len <= (-cryptlen)) {
+		/* Empty this entry, and move to previous one */
+		cryptlen += be16_to_cpu(link_tbl_ptr->len);
+		link_tbl_ptr->len = 0;
+		sg_count--;
+		link_tbl_ptr--;
+	}
+	link_tbl_ptr->len = cpu_to_be16(be16_to_cpu(link_tbl_ptr->len)
+					+ cryptlen);
+
+	/* tag end of link table */
+	link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
+
+	return sg_count;
+}
+
+/*
+ * fill in and submit ipsec_esp descriptor
+ */
+static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq,
+		     u8 *giv, u64 seq,
+		     void (*callback) (struct device *dev,
+				       struct talitos_desc *desc,
+				       void *context, int error))
+{
+	struct crypto_aead *aead = crypto_aead_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_aead_ctx(aead);
+	struct device *dev = ctx->dev;
+	struct talitos_desc *desc = &edesc->desc;
+	unsigned int cryptlen = areq->cryptlen;
+	unsigned int authsize = ctx->authsize;
+	unsigned int ivsize;
+	int sg_count;
+
+	/* hmac key */
+	map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
+			       0, DMA_TO_DEVICE);
+	/* hmac data */
+	map_single_talitos_ptr(dev, &desc->ptr[1], sg_virt(areq->src) -
+			       sg_virt(areq->assoc), sg_virt(areq->assoc), 0,
+			       DMA_TO_DEVICE);
+	/* cipher iv */
+	ivsize = crypto_aead_ivsize(aead);
+	map_single_talitos_ptr(dev, &desc->ptr[2], ivsize, giv ?: areq->iv, 0,
+			       DMA_TO_DEVICE);
+
+	/* cipher key */
+	map_single_talitos_ptr(dev, &desc->ptr[3], ctx->enckeylen,
+			       (char *)&ctx->key + ctx->authkeylen, 0,
+			       DMA_TO_DEVICE);
+
+	/*
+	 * cipher in
+	 * map and adjust cipher len to aead request cryptlen.
+	 * extent is bytes of HMAC postpended to ciphertext,
+	 * typically 12 for ipsec
+	 */
+	desc->ptr[4].len = cpu_to_be16(cryptlen);
+	desc->ptr[4].j_extent = authsize;
+
+	if (areq->src == areq->dst)
+		sg_count = dma_map_sg(dev, areq->src, edesc->src_nents ? : 1,
+				      DMA_BIDIRECTIONAL);
+	else
+		sg_count = dma_map_sg(dev, areq->src, edesc->src_nents ? : 1,
+				      DMA_TO_DEVICE);
+
+	if (sg_count == 1) {
+		desc->ptr[4].ptr = cpu_to_be32(sg_dma_address(areq->src));
+	} else {
+		sg_count = sg_to_link_tbl(areq->src, sg_count, cryptlen,
+					  &edesc->link_tbl[0]);
+		if (sg_count > 1) {
+			desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP;
+			desc->ptr[4].ptr = cpu_to_be32(edesc->dma_link_tbl);
+			dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl,
+						   edesc->dma_len, DMA_BIDIRECTIONAL);
+		} else {
+			/* Only one segment now, so no link tbl needed */
+			desc->ptr[4].ptr = cpu_to_be32(sg_dma_address(areq->src));
+		}
+	}
+
+	/* cipher out */
+	desc->ptr[5].len = cpu_to_be16(cryptlen);
+	desc->ptr[5].j_extent = authsize;
+
+	if (areq->src != areq->dst) {
+		sg_count = dma_map_sg(dev, areq->dst, edesc->dst_nents ? : 1,
+				      DMA_FROM_DEVICE);
+	}
+
+	if (sg_count == 1) {
+		desc->ptr[5].ptr = cpu_to_be32(sg_dma_address(areq->dst));
+	} else {
+		struct talitos_ptr *link_tbl_ptr =
+			&edesc->link_tbl[edesc->src_nents];
+		struct scatterlist *sg;
+
+		desc->ptr[5].ptr = cpu_to_be32((struct talitos_ptr *)
+					       edesc->dma_link_tbl +
+					       edesc->src_nents);
+		if (areq->src == areq->dst) {
+			memcpy(link_tbl_ptr, &edesc->link_tbl[0],
+			       edesc->src_nents * sizeof(struct talitos_ptr));
+		} else {
+			sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen,
+						  link_tbl_ptr);
+		}
+		link_tbl_ptr += sg_count - 1;
+
+		/* handle case where sg_last contains the ICV exclusively */
+		sg = sg_last(areq->dst, edesc->dst_nents);
+		if (sg->length == ctx->authsize)
+			link_tbl_ptr--;
+
+		link_tbl_ptr->j_extent = 0;
+		link_tbl_ptr++;
+		link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
+		link_tbl_ptr->len = cpu_to_be16(authsize);
+
+		/* icv data follows link tables */
+		link_tbl_ptr->ptr = cpu_to_be32((struct talitos_ptr *)
+						edesc->dma_link_tbl +
+					        edesc->src_nents +
+						edesc->dst_nents + 1);
+
+		desc->ptr[5].j_extent |= DESC_PTR_LNKTBL_JUMP;
+		dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl,
+					   edesc->dma_len, DMA_BIDIRECTIONAL);
+	}
+
+	/* iv out */
+	map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv, 0,
+			       DMA_FROM_DEVICE);
+
+	return talitos_submit(dev, desc, callback, areq);
+}
+
+
+/*
+ * derive number of elements in scatterlist
+ */
+static int sg_count(struct scatterlist *sg_list, int nbytes)
+{
+	struct scatterlist *sg = sg_list;
+	int sg_nents = 0;
+
+	while (nbytes) {
+		sg_nents++;
+		nbytes -= sg->length;
+		sg = sg_next(sg);
+	}
+
+	return sg_nents;
+}
+
+/*
+ * allocate and map the ipsec_esp extended descriptor
+ */
+static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq,
+						     int icv_stashing)
+{
+	struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	struct ipsec_esp_edesc *edesc;
+	int src_nents, dst_nents, alloc_len, dma_len;
+
+	if (areq->cryptlen + ctx->authsize > TALITOS_MAX_DATA_LEN) {
+		dev_err(ctx->dev, "cryptlen exceeds h/w max limit\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	src_nents = sg_count(areq->src, areq->cryptlen + ctx->authsize);
+	src_nents = (src_nents == 1) ? 0 : src_nents;
+
+	if (areq->dst == areq->src) {
+		dst_nents = src_nents;
+	} else {
+		dst_nents = sg_count(areq->dst, areq->cryptlen + ctx->authsize);
+		dst_nents = (dst_nents == 1) ? 0 : src_nents;
+	}
+
+	/*
+	 * allocate space for base edesc plus the link tables,
+	 * allowing for a separate entry for the generated ICV (+ 1),
+	 * and the ICV data itself
+	 */
+	alloc_len = sizeof(struct ipsec_esp_edesc);
+	if (src_nents || dst_nents) {
+		dma_len = (src_nents + dst_nents + 1) *
+				 sizeof(struct talitos_ptr) + ctx->authsize;
+		alloc_len += dma_len;
+	} else {
+		dma_len = 0;
+		alloc_len += icv_stashing ? ctx->authsize : 0;
+	}
+
+	edesc = kmalloc(alloc_len, GFP_DMA);
+	if (!edesc) {
+		dev_err(ctx->dev, "could not allocate edescriptor\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	edesc->src_nents = src_nents;
+	edesc->dst_nents = dst_nents;
+	edesc->dma_len = dma_len;
+	edesc->dma_link_tbl = dma_map_single(ctx->dev, &edesc->link_tbl[0],
+					     edesc->dma_len, DMA_BIDIRECTIONAL);
+
+	return edesc;
+}
+
+static int aead_authenc_encrypt(struct aead_request *req)
+{
+	struct crypto_aead *authenc = crypto_aead_reqtfm(req);
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	struct ipsec_esp_edesc *edesc;
+
+	/* allocate extended descriptor */
+	edesc = ipsec_esp_edesc_alloc(req, 0);
+	if (IS_ERR(edesc))
+		return PTR_ERR(edesc);
+
+	/* set encrypt */
+	edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
+
+	return ipsec_esp(edesc, req, NULL, 0, ipsec_esp_encrypt_done);
+}
+
+static int aead_authenc_decrypt(struct aead_request *req)
+{
+	struct crypto_aead *authenc = crypto_aead_reqtfm(req);
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	unsigned int authsize = ctx->authsize;
+	struct ipsec_esp_edesc *edesc;
+	struct scatterlist *sg;
+	void *icvdata;
+
+	req->cryptlen -= authsize;
+
+	/* allocate extended descriptor */
+	edesc = ipsec_esp_edesc_alloc(req, 1);
+	if (IS_ERR(edesc))
+		return PTR_ERR(edesc);
+
+	/* stash incoming ICV for later cmp with ICV generated by the h/w */
+	if (edesc->dma_len)
+		icvdata = &edesc->link_tbl[edesc->src_nents +
+					   edesc->dst_nents + 1];
+	else
+		icvdata = &edesc->link_tbl[0];
+
+	sg = sg_last(req->src, edesc->src_nents ? : 1);
+
+	memcpy(icvdata, (char *)sg_virt(sg) + sg->length - ctx->authsize,
+	       ctx->authsize);
+
+	/* decrypt */
+	edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND;
+
+	return ipsec_esp(edesc, req, NULL, 0, ipsec_esp_decrypt_done);
+}
+
+static int aead_authenc_givencrypt(
+	struct aead_givcrypt_request *req)
+{
+	struct aead_request *areq = &req->areq;
+	struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	struct ipsec_esp_edesc *edesc;
+
+	/* allocate extended descriptor */
+	edesc = ipsec_esp_edesc_alloc(areq, 0);
+	if (IS_ERR(edesc))
+		return PTR_ERR(edesc);
+
+	/* set encrypt */
+	edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
+
+	memcpy(req->giv, ctx->iv, crypto_aead_ivsize(authenc));
+
+	return ipsec_esp(edesc, areq, req->giv, req->seq,
+			 ipsec_esp_encrypt_done);
+}
+
+struct talitos_alg_template {
+	char name[CRYPTO_MAX_ALG_NAME];
+	char driver_name[CRYPTO_MAX_ALG_NAME];
+	unsigned int blocksize;
+	struct aead_alg aead;
+	struct device *dev;
+	__be32 desc_hdr_template;
+};
+
+static struct talitos_alg_template driver_algs[] = {
+	/* single-pass ipsec_esp descriptor */
+	{
+		.name = "authenc(hmac(sha1),cbc(aes))",
+		.driver_name = "authenc-hmac-sha1-cbc-aes-talitos",
+		.blocksize = AES_BLOCK_SIZE,
+		.aead = {
+			.setkey = aead_authenc_setkey,
+			.setauthsize = aead_authenc_setauthsize,
+			.encrypt = aead_authenc_encrypt,
+			.decrypt = aead_authenc_decrypt,
+			.givencrypt = aead_authenc_givencrypt,
+			.geniv = "<built-in>",
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize = SHA1_DIGEST_SIZE,
+			},
+		.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
+			             DESC_HDR_SEL0_AESU |
+		                     DESC_HDR_MODE0_AESU_CBC |
+		                     DESC_HDR_SEL1_MDEUA |
+		                     DESC_HDR_MODE1_MDEU_INIT |
+		                     DESC_HDR_MODE1_MDEU_PAD |
+		                     DESC_HDR_MODE1_MDEU_SHA1_HMAC,
+	},
+	{
+		.name = "authenc(hmac(sha1),cbc(des3_ede))",
+		.driver_name = "authenc-hmac-sha1-cbc-3des-talitos",
+		.blocksize = DES3_EDE_BLOCK_SIZE,
+		.aead = {
+			.setkey = aead_authenc_setkey,
+			.setauthsize = aead_authenc_setauthsize,
+			.encrypt = aead_authenc_encrypt,
+			.decrypt = aead_authenc_decrypt,
+			.givencrypt = aead_authenc_givencrypt,
+			.geniv = "<built-in>",
+			.ivsize = DES3_EDE_BLOCK_SIZE,
+			.maxauthsize = SHA1_DIGEST_SIZE,
+			},
+		.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
+			             DESC_HDR_SEL0_DEU |
+		                     DESC_HDR_MODE0_DEU_CBC |
+		                     DESC_HDR_MODE0_DEU_3DES |
+		                     DESC_HDR_SEL1_MDEUA |
+		                     DESC_HDR_MODE1_MDEU_INIT |
+		                     DESC_HDR_MODE1_MDEU_PAD |
+		                     DESC_HDR_MODE1_MDEU_SHA1_HMAC,
+	},
+	{
+		.name = "authenc(hmac(sha256),cbc(aes))",
+		.driver_name = "authenc-hmac-sha256-cbc-aes-talitos",
+		.blocksize = AES_BLOCK_SIZE,
+		.aead = {
+			.setkey = aead_authenc_setkey,
+			.setauthsize = aead_authenc_setauthsize,
+			.encrypt = aead_authenc_encrypt,
+			.decrypt = aead_authenc_decrypt,
+			.givencrypt = aead_authenc_givencrypt,
+			.geniv = "<built-in>",
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize = SHA256_DIGEST_SIZE,
+			},
+		.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
+			             DESC_HDR_SEL0_AESU |
+		                     DESC_HDR_MODE0_AESU_CBC |
+		                     DESC_HDR_SEL1_MDEUA |
+		                     DESC_HDR_MODE1_MDEU_INIT |
+		                     DESC_HDR_MODE1_MDEU_PAD |
+		                     DESC_HDR_MODE1_MDEU_SHA256_HMAC,
+	},
+	{
+		.name = "authenc(hmac(sha256),cbc(des3_ede))",
+		.driver_name = "authenc-hmac-sha256-cbc-3des-talitos",
+		.blocksize = DES3_EDE_BLOCK_SIZE,
+		.aead = {
+			.setkey = aead_authenc_setkey,
+			.setauthsize = aead_authenc_setauthsize,
+			.encrypt = aead_authenc_encrypt,
+			.decrypt = aead_authenc_decrypt,
+			.givencrypt = aead_authenc_givencrypt,
+			.geniv = "<built-in>",
+			.ivsize = DES3_EDE_BLOCK_SIZE,
+			.maxauthsize = SHA256_DIGEST_SIZE,
+			},
+		.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
+			             DESC_HDR_SEL0_DEU |
+		                     DESC_HDR_MODE0_DEU_CBC |
+		                     DESC_HDR_MODE0_DEU_3DES |
+		                     DESC_HDR_SEL1_MDEUA |
+		                     DESC_HDR_MODE1_MDEU_INIT |
+		                     DESC_HDR_MODE1_MDEU_PAD |
+		                     DESC_HDR_MODE1_MDEU_SHA256_HMAC,
+	},
+	{
+		.name = "authenc(hmac(md5),cbc(aes))",
+		.driver_name = "authenc-hmac-md5-cbc-aes-talitos",
+		.blocksize = AES_BLOCK_SIZE,
+		.aead = {
+			.setkey = aead_authenc_setkey,
+			.setauthsize = aead_authenc_setauthsize,
+			.encrypt = aead_authenc_encrypt,
+			.decrypt = aead_authenc_decrypt,
+			.givencrypt = aead_authenc_givencrypt,
+			.geniv = "<built-in>",
+			.ivsize = AES_BLOCK_SIZE,
+			.maxauthsize = MD5_DIGEST_SIZE,
+			},
+		.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
+			             DESC_HDR_SEL0_AESU |
+		                     DESC_HDR_MODE0_AESU_CBC |
+		                     DESC_HDR_SEL1_MDEUA |
+		                     DESC_HDR_MODE1_MDEU_INIT |
+		                     DESC_HDR_MODE1_MDEU_PAD |
+		                     DESC_HDR_MODE1_MDEU_MD5_HMAC,
+	},
+	{
+		.name = "authenc(hmac(md5),cbc(des3_ede))",
+		.driver_name = "authenc-hmac-md5-cbc-3des-talitos",
+		.blocksize = DES3_EDE_BLOCK_SIZE,
+		.aead = {
+			.setkey = aead_authenc_setkey,
+			.setauthsize = aead_authenc_setauthsize,
+			.encrypt = aead_authenc_encrypt,
+			.decrypt = aead_authenc_decrypt,
+			.givencrypt = aead_authenc_givencrypt,
+			.geniv = "<built-in>",
+			.ivsize = DES3_EDE_BLOCK_SIZE,
+			.maxauthsize = MD5_DIGEST_SIZE,
+			},
+		.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
+			             DESC_HDR_SEL0_DEU |
+		                     DESC_HDR_MODE0_DEU_CBC |
+		                     DESC_HDR_MODE0_DEU_3DES |
+		                     DESC_HDR_SEL1_MDEUA |
+		                     DESC_HDR_MODE1_MDEU_INIT |
+		                     DESC_HDR_MODE1_MDEU_PAD |
+		                     DESC_HDR_MODE1_MDEU_MD5_HMAC,
+	}
+};
+
+struct talitos_crypto_alg {
+	struct list_head entry;
+	struct device *dev;
+	__be32 desc_hdr_template;
+	struct crypto_alg crypto_alg;
+};
+
+static int talitos_cra_init(struct crypto_tfm *tfm)
+{
+	struct crypto_alg *alg = tfm->__crt_alg;
+	struct talitos_crypto_alg *talitos_alg =
+		 container_of(alg, struct talitos_crypto_alg, crypto_alg);
+	struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
+
+	/* update context with ptr to dev */
+	ctx->dev = talitos_alg->dev;
+	/* copy descriptor header template value */
+	ctx->desc_hdr_template = talitos_alg->desc_hdr_template;
+
+	/* random first IV */
+	get_random_bytes(ctx->iv, TALITOS_MAX_IV_LENGTH);
+
+	return 0;
+}
+
+/*
+ * given the alg's descriptor header template, determine whether descriptor
+ * type and primary/secondary execution units required match the hw
+ * capabilities description provided in the device tree node.
+ */
+static int hw_supports(struct device *dev, __be32 desc_hdr_template)
+{
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	int ret;
+
+	ret = (1 << DESC_TYPE(desc_hdr_template) & priv->desc_types) &&
+	      (1 << PRIMARY_EU(desc_hdr_template) & priv->exec_units);
+
+	if (SECONDARY_EU(desc_hdr_template))
+		ret = ret && (1 << SECONDARY_EU(desc_hdr_template)
+		              & priv->exec_units);
+
+	return ret;
+}
+
+static int __devexit talitos_remove(struct of_device *ofdev)
+{
+	struct device *dev = &ofdev->dev;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	struct talitos_crypto_alg *t_alg, *n;
+	int i;
+
+	list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) {
+		crypto_unregister_alg(&t_alg->crypto_alg);
+		list_del(&t_alg->entry);
+		kfree(t_alg);
+	}
+
+	if (hw_supports(dev, DESC_HDR_SEL0_RNG))
+		talitos_unregister_rng(dev);
+
+	kfree(priv->tail);
+	kfree(priv->head);
+
+	if (priv->fifo)
+		for (i = 0; i < priv->num_channels; i++)
+			kfree(priv->fifo[i]);
+
+	kfree(priv->fifo);
+	kfree(priv->head_lock);
+	kfree(priv->tail_lock);
+
+	if (priv->irq != NO_IRQ) {
+		free_irq(priv->irq, dev);
+		irq_dispose_mapping(priv->irq);
+	}
+
+	tasklet_kill(&priv->done_task);
+	tasklet_kill(&priv->error_task);
+
+	iounmap(priv->reg);
+
+	dev_set_drvdata(dev, NULL);
+
+	kfree(priv);
+
+	return 0;
+}
+
+static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
+						    struct talitos_alg_template
+						           *template)
+{
+	struct talitos_crypto_alg *t_alg;
+	struct crypto_alg *alg;
+
+	t_alg = kzalloc(sizeof(struct talitos_crypto_alg), GFP_KERNEL);
+	if (!t_alg)
+		return ERR_PTR(-ENOMEM);
+
+	alg = &t_alg->crypto_alg;
+
+	snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", template->name);
+	snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+		 template->driver_name);
+	alg->cra_module = THIS_MODULE;
+	alg->cra_init = talitos_cra_init;
+	alg->cra_priority = TALITOS_CRA_PRIORITY;
+	alg->cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC;
+	alg->cra_blocksize = template->blocksize;
+	alg->cra_alignmask = 0;
+	alg->cra_type = &crypto_aead_type;
+	alg->cra_ctxsize = sizeof(struct talitos_ctx);
+	alg->cra_u.aead = template->aead;
+
+	t_alg->desc_hdr_template = template->desc_hdr_template;
+	t_alg->dev = dev;
+
+	return t_alg;
+}
+
+static int talitos_probe(struct of_device *ofdev,
+			 const struct of_device_id *match)
+{
+	struct device *dev = &ofdev->dev;
+	struct device_node *np = ofdev->node;
+	struct talitos_private *priv;
+	const unsigned int *prop;
+	int i, err;
+
+	priv = kzalloc(sizeof(struct talitos_private), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, priv);
+
+	priv->ofdev = ofdev;
+
+	tasklet_init(&priv->done_task, talitos_done, (unsigned long)dev);
+	tasklet_init(&priv->error_task, talitos_error, (unsigned long)dev);
+
+	priv->irq = irq_of_parse_and_map(np, 0);
+
+	if (priv->irq == NO_IRQ) {
+		dev_err(dev, "failed to map irq\n");
+		err = -EINVAL;
+		goto err_out;
+	}
+
+	/* get the irq line */
+	err = request_irq(priv->irq, talitos_interrupt, 0,
+			  dev_driver_string(dev), dev);
+	if (err) {
+		dev_err(dev, "failed to request irq %d\n", priv->irq);
+		irq_dispose_mapping(priv->irq);
+		priv->irq = NO_IRQ;
+		goto err_out;
+	}
+
+	priv->reg = of_iomap(np, 0);
+	if (!priv->reg) {
+		dev_err(dev, "failed to of_iomap\n");
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	/* get SEC version capabilities from device tree */
+	prop = of_get_property(np, "fsl,num-channels", NULL);
+	if (prop)
+		priv->num_channels = *prop;
+
+	prop = of_get_property(np, "fsl,channel-fifo-len", NULL);
+	if (prop)
+		priv->chfifo_len = *prop;
+
+	prop = of_get_property(np, "fsl,exec-units-mask", NULL);
+	if (prop)
+		priv->exec_units = *prop;
+
+	prop = of_get_property(np, "fsl,descriptor-types-mask", NULL);
+	if (prop)
+		priv->desc_types = *prop;
+
+	if (!is_power_of_2(priv->num_channels) || !priv->chfifo_len ||
+	    !priv->exec_units || !priv->desc_types) {
+		dev_err(dev, "invalid property data in device tree node\n");
+		err = -EINVAL;
+		goto err_out;
+	}
+
+	of_node_put(np);
+	np = NULL;
+
+	priv->head_lock = kmalloc(sizeof(spinlock_t) * priv->num_channels,
+				  GFP_KERNEL);
+	priv->tail_lock = kmalloc(sizeof(spinlock_t) * priv->num_channels,
+				  GFP_KERNEL);
+	if (!priv->head_lock || !priv->tail_lock) {
+		dev_err(dev, "failed to allocate fifo locks\n");
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	for (i = 0; i < priv->num_channels; i++) {
+		spin_lock_init(&priv->head_lock[i]);
+		spin_lock_init(&priv->tail_lock[i]);
+	}
+
+	priv->fifo = kmalloc(sizeof(struct talitos_request *) *
+			     priv->num_channels, GFP_KERNEL);
+	if (!priv->fifo) {
+		dev_err(dev, "failed to allocate request fifo\n");
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	priv->fifo_len = roundup_pow_of_two(priv->chfifo_len);
+
+	for (i = 0; i < priv->num_channels; i++) {
+		priv->fifo[i] = kzalloc(sizeof(struct talitos_request) *
+					priv->fifo_len, GFP_KERNEL);
+		if (!priv->fifo[i]) {
+			dev_err(dev, "failed to allocate request fifo %d\n", i);
+			err = -ENOMEM;
+			goto err_out;
+		}
+	}
+
+	priv->head = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL);
+	priv->tail = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL);
+	if (!priv->head || !priv->tail) {
+		dev_err(dev, "failed to allocate request index space\n");
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	/* reset and initialize the h/w */
+	err = init_device(dev);
+	if (err) {
+		dev_err(dev, "failed to initialize device\n");
+		goto err_out;
+	}
+
+	/* register the RNG, if available */
+	if (hw_supports(dev, DESC_HDR_SEL0_RNG)) {
+		err = talitos_register_rng(dev);
+		if (err) {
+			dev_err(dev, "failed to register hwrng: %d\n", err);
+			goto err_out;
+		} else
+			dev_info(dev, "hwrng\n");
+	}
+
+	/* register crypto algorithms the device supports */
+	INIT_LIST_HEAD(&priv->alg_list);
+
+	for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
+		if (hw_supports(dev, driver_algs[i].desc_hdr_template)) {
+			struct talitos_crypto_alg *t_alg;
+
+			t_alg = talitos_alg_alloc(dev, &driver_algs[i]);
+			if (IS_ERR(t_alg)) {
+				err = PTR_ERR(t_alg);
+				goto err_out;
+			}
+
+			err = crypto_register_alg(&t_alg->crypto_alg);
+			if (err) {
+				dev_err(dev, "%s alg registration failed\n",
+					t_alg->crypto_alg.cra_driver_name);
+				kfree(t_alg);
+			} else {
+				list_add_tail(&t_alg->entry, &priv->alg_list);
+				dev_info(dev, "%s\n",
+					 t_alg->crypto_alg.cra_driver_name);
+			}
+		}
+	}
+
+	return 0;
+
+err_out:
+	talitos_remove(ofdev);
+	if (np)
+		of_node_put(np);
+
+	return err;
+}
+
+static struct of_device_id talitos_match[] = {
+	{
+		.compatible = "fsl,sec2.0",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, talitos_match);
+
+static struct of_platform_driver talitos_driver = {
+	.name = "talitos",
+	.match_table = talitos_match,
+	.probe = talitos_probe,
+	.remove = __devexit_p(talitos_remove),
+};
+
+static int __init talitos_init(void)
+{
+	return of_register_platform_driver(&talitos_driver);
+}
+module_init(talitos_init);
+
+static void __exit talitos_exit(void)
+{
+	of_unregister_platform_driver(&talitos_driver);
+}
+module_exit(talitos_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Kim Phillips <kim.phillips@freescale.com>");
+MODULE_DESCRIPTION("Freescale integrated security engine (SEC) driver");
diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h
new file mode 100644
index 00000000000..c48a405abf7
--- /dev/null
+++ b/drivers/crypto/talitos.h
@@ -0,0 +1,199 @@
+/*
+ * Freescale SEC (talitos) device register and descriptor header defines
+ *
+ * Copyright (c) 2006-2008 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+ * TALITOS_xxx_LO addresses point to the low data bits (32-63) of the register
+ */
+
+/* global register offset addresses */
+#define TALITOS_MCR			0x1030  /* master control register */
+#define TALITOS_MCR_LO			0x1038
+#define   TALITOS_MCR_SWR		0x1     /* s/w reset */
+#define TALITOS_IMR			0x1008  /* interrupt mask register */
+#define   TALITOS_IMR_INIT		0x10fff /* enable channel IRQs */
+#define TALITOS_IMR_LO			0x100C
+#define   TALITOS_IMR_LO_INIT		0x20000 /* allow RNGU error IRQs */
+#define TALITOS_ISR			0x1010  /* interrupt status register */
+#define   TALITOS_ISR_CHERR		0xaa    /* channel errors mask */
+#define   TALITOS_ISR_CHDONE		0x55    /* channel done mask */
+#define TALITOS_ISR_LO			0x1014
+#define TALITOS_ICR			0x1018  /* interrupt clear register */
+#define TALITOS_ICR_LO			0x101C
+
+/* channel register address stride */
+#define TALITOS_CH_STRIDE		0x100
+
+/* channel configuration register  */
+#define TALITOS_CCCR(ch)		(ch * TALITOS_CH_STRIDE + 0x1108)
+#define   TALITOS_CCCR_CONT		0x2    /* channel continue */
+#define   TALITOS_CCCR_RESET		0x1    /* channel reset */
+#define TALITOS_CCCR_LO(ch)		(ch * TALITOS_CH_STRIDE + 0x110c)
+#define   TALITOS_CCCR_LO_CDWE		0x10   /* chan. done writeback enab. */
+#define   TALITOS_CCCR_LO_NT		0x4    /* notification type */
+#define   TALITOS_CCCR_LO_CDIE		0x2    /* channel done IRQ enable */
+
+/* CCPSR: channel pointer status register */
+#define TALITOS_CCPSR(ch)		(ch * TALITOS_CH_STRIDE + 0x1110)
+#define TALITOS_CCPSR_LO(ch)		(ch * TALITOS_CH_STRIDE + 0x1114)
+#define   TALITOS_CCPSR_LO_DOF		0x8000 /* double FF write oflow error */
+#define   TALITOS_CCPSR_LO_SOF		0x4000 /* single FF write oflow error */
+#define   TALITOS_CCPSR_LO_MDTE		0x2000 /* master data transfer error */
+#define   TALITOS_CCPSR_LO_SGDLZ	0x1000 /* s/g data len zero error */
+#define   TALITOS_CCPSR_LO_FPZ		0x0800 /* fetch ptr zero error */
+#define   TALITOS_CCPSR_LO_IDH		0x0400 /* illegal desc hdr error */
+#define   TALITOS_CCPSR_LO_IEU		0x0200 /* invalid EU error */
+#define   TALITOS_CCPSR_LO_EU		0x0100 /* EU error detected */
+#define   TALITOS_CCPSR_LO_GB		0x0080 /* gather boundary error */
+#define   TALITOS_CCPSR_LO_GRL		0x0040 /* gather return/length error */
+#define   TALITOS_CCPSR_LO_SB		0x0020 /* scatter boundary error */
+#define   TALITOS_CCPSR_LO_SRL		0x0010 /* scatter return/length error */
+
+/* channel fetch fifo register */
+#define TALITOS_FF(ch)			(ch * TALITOS_CH_STRIDE + 0x1148)
+#define TALITOS_FF_LO(ch)		(ch * TALITOS_CH_STRIDE + 0x114c)
+
+/* current descriptor pointer register */
+#define TALITOS_CDPR(ch)		(ch * TALITOS_CH_STRIDE + 0x1140)
+#define TALITOS_CDPR_LO(ch)		(ch * TALITOS_CH_STRIDE + 0x1144)
+
+/* descriptor buffer register */
+#define TALITOS_DESCBUF(ch)		(ch * TALITOS_CH_STRIDE + 0x1180)
+#define TALITOS_DESCBUF_LO(ch)		(ch * TALITOS_CH_STRIDE + 0x1184)
+
+/* gather link table */
+#define TALITOS_GATHER(ch)		(ch * TALITOS_CH_STRIDE + 0x11c0)
+#define TALITOS_GATHER_LO(ch)		(ch * TALITOS_CH_STRIDE + 0x11c4)
+
+/* scatter link table */
+#define TALITOS_SCATTER(ch)		(ch * TALITOS_CH_STRIDE + 0x11e0)
+#define TALITOS_SCATTER_LO(ch)		(ch * TALITOS_CH_STRIDE + 0x11e4)
+
+/* execution unit interrupt status registers */
+#define TALITOS_DEUISR			0x2030 /* DES unit */
+#define TALITOS_DEUISR_LO		0x2034
+#define TALITOS_AESUISR			0x4030 /* AES unit */
+#define TALITOS_AESUISR_LO		0x4034
+#define TALITOS_MDEUISR			0x6030 /* message digest unit */
+#define TALITOS_MDEUISR_LO		0x6034
+#define TALITOS_AFEUISR			0x8030 /* arc4 unit */
+#define TALITOS_AFEUISR_LO		0x8034
+#define TALITOS_RNGUISR			0xa030 /* random number unit */
+#define TALITOS_RNGUISR_LO		0xa034
+#define TALITOS_RNGUSR			0xa028 /* rng status */
+#define TALITOS_RNGUSR_LO		0xa02c
+#define   TALITOS_RNGUSR_LO_RD		0x1	/* reset done */
+#define   TALITOS_RNGUSR_LO_OFL		0xff0000/* output FIFO length */
+#define TALITOS_RNGUDSR			0xa010	/* data size */
+#define TALITOS_RNGUDSR_LO		0xa014
+#define TALITOS_RNGU_FIFO		0xa800	/* output FIFO */
+#define TALITOS_RNGU_FIFO_LO		0xa804	/* output FIFO */
+#define TALITOS_RNGURCR			0xa018	/* reset control */
+#define TALITOS_RNGURCR_LO		0xa01c
+#define   TALITOS_RNGURCR_LO_SR		0x1	/* software reset */
+#define TALITOS_PKEUISR			0xc030 /* public key unit */
+#define TALITOS_PKEUISR_LO		0xc034
+#define TALITOS_KEUISR			0xe030 /* kasumi unit */
+#define TALITOS_KEUISR_LO		0xe034
+#define TALITOS_CRCUISR			0xf030 /* cyclic redundancy check unit*/
+#define TALITOS_CRCUISR_LO		0xf034
+
+/*
+ * talitos descriptor header (hdr) bits
+ */
+
+/* written back when done */
+#define DESC_HDR_DONE			__constant_cpu_to_be32(0xff000000)
+
+/* primary execution unit select */
+#define	DESC_HDR_SEL0_MASK		__constant_cpu_to_be32(0xf0000000)
+#define	DESC_HDR_SEL0_AFEU		__constant_cpu_to_be32(0x10000000)
+#define	DESC_HDR_SEL0_DEU		__constant_cpu_to_be32(0x20000000)
+#define	DESC_HDR_SEL0_MDEUA		__constant_cpu_to_be32(0x30000000)
+#define	DESC_HDR_SEL0_MDEUB		__constant_cpu_to_be32(0xb0000000)
+#define	DESC_HDR_SEL0_RNG		__constant_cpu_to_be32(0x40000000)
+#define	DESC_HDR_SEL0_PKEU		__constant_cpu_to_be32(0x50000000)
+#define	DESC_HDR_SEL0_AESU		__constant_cpu_to_be32(0x60000000)
+#define	DESC_HDR_SEL0_KEU		__constant_cpu_to_be32(0x70000000)
+#define	DESC_HDR_SEL0_CRCU		__constant_cpu_to_be32(0x80000000)
+
+/* primary execution unit mode (MODE0) and derivatives */
+#define	DESC_HDR_MODE0_ENCRYPT		__constant_cpu_to_be32(0x00100000)
+#define	DESC_HDR_MODE0_AESU_CBC		__constant_cpu_to_be32(0x00200000)
+#define	DESC_HDR_MODE0_DEU_CBC		__constant_cpu_to_be32(0x00400000)
+#define	DESC_HDR_MODE0_DEU_3DES		__constant_cpu_to_be32(0x00200000)
+#define	DESC_HDR_MODE0_MDEU_INIT	__constant_cpu_to_be32(0x01000000)
+#define	DESC_HDR_MODE0_MDEU_HMAC	__constant_cpu_to_be32(0x00800000)
+#define	DESC_HDR_MODE0_MDEU_PAD		__constant_cpu_to_be32(0x00400000)
+#define	DESC_HDR_MODE0_MDEU_MD5		__constant_cpu_to_be32(0x00200000)
+#define	DESC_HDR_MODE0_MDEU_SHA256	__constant_cpu_to_be32(0x00100000)
+#define	DESC_HDR_MODE0_MDEU_SHA1	__constant_cpu_to_be32(0x00000000)
+#define	DESC_HDR_MODE0_MDEU_MD5_HMAC	(DESC_HDR_MODE0_MDEU_MD5 | \
+					 DESC_HDR_MODE0_MDEU_HMAC)
+#define	DESC_HDR_MODE0_MDEU_SHA256_HMAC	(DESC_HDR_MODE0_MDEU_SHA256 | \
+					 DESC_HDR_MODE0_MDEU_HMAC)
+#define	DESC_HDR_MODE0_MDEU_SHA1_HMAC	(DESC_HDR_MODE0_MDEU_SHA1 | \
+					 DESC_HDR_MODE0_MDEU_HMAC)
+
+/* secondary execution unit select (SEL1) */
+#define	DESC_HDR_SEL1_MASK		__constant_cpu_to_be32(0x000f0000)
+#define	DESC_HDR_SEL1_MDEUA		__constant_cpu_to_be32(0x00030000)
+#define	DESC_HDR_SEL1_MDEUB		__constant_cpu_to_be32(0x000b0000)
+#define	DESC_HDR_SEL1_CRCU		__constant_cpu_to_be32(0x00080000)
+
+/* secondary execution unit mode (MODE1) and derivatives */
+#define	DESC_HDR_MODE1_MDEU_INIT	__constant_cpu_to_be32(0x00001000)
+#define	DESC_HDR_MODE1_MDEU_HMAC	__constant_cpu_to_be32(0x00000800)
+#define	DESC_HDR_MODE1_MDEU_PAD		__constant_cpu_to_be32(0x00000400)
+#define	DESC_HDR_MODE1_MDEU_MD5		__constant_cpu_to_be32(0x00000200)
+#define	DESC_HDR_MODE1_MDEU_SHA256	__constant_cpu_to_be32(0x00000100)
+#define	DESC_HDR_MODE1_MDEU_SHA1	__constant_cpu_to_be32(0x00000000)
+#define	DESC_HDR_MODE1_MDEU_MD5_HMAC	(DESC_HDR_MODE1_MDEU_MD5 | \
+					 DESC_HDR_MODE1_MDEU_HMAC)
+#define	DESC_HDR_MODE1_MDEU_SHA256_HMAC	(DESC_HDR_MODE1_MDEU_SHA256 | \
+					 DESC_HDR_MODE1_MDEU_HMAC)
+#define	DESC_HDR_MODE1_MDEU_SHA1_HMAC	(DESC_HDR_MODE1_MDEU_SHA1 | \
+					 DESC_HDR_MODE1_MDEU_HMAC)
+
+/* direction of overall data flow (DIR) */
+#define	DESC_HDR_DIR_INBOUND		__constant_cpu_to_be32(0x00000002)
+
+/* request done notification (DN) */
+#define	DESC_HDR_DONE_NOTIFY		__constant_cpu_to_be32(0x00000001)
+
+/* descriptor types */
+#define DESC_HDR_TYPE_AESU_CTR_NONSNOOP		__constant_cpu_to_be32(0 << 3)
+#define DESC_HDR_TYPE_IPSEC_ESP			__constant_cpu_to_be32(1 << 3)
+#define DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU	__constant_cpu_to_be32(2 << 3)
+#define DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU	__constant_cpu_to_be32(4 << 3)
+
+/* link table extent field bits */
+#define DESC_PTR_LNKTBL_JUMP			0x80
+#define DESC_PTR_LNKTBL_RETURN			0x02
+#define DESC_PTR_LNKTBL_NEXT			0x01