1 files changed, 0 insertions, 426 deletions

diff --git a/drivers/crypto/chelsio/chtls/chtls_hw.c b/drivers/crypto/chelsio/chtls/chtls_hw.c
deleted file mode 100644
index f1820aca0d33..000000000000
--- a/drivers/crypto/chelsio/chtls/chtls_hw.c
+++ /dev/null
@@ -1,426 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2018 Chelsio Communications, Inc.
- *
- * Written by: Atul Gupta (atul.gupta@chelsio.com)
- */
-
-#include <linux/module.h>
-#include <linux/list.h>
-#include <linux/workqueue.h>
-#include <linux/skbuff.h>
-#include <linux/timer.h>
-#include <linux/notifier.h>
-#include <linux/inetdevice.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/tls.h>
-#include <net/tls.h>
-
-#include "chtls.h"
-#include "chtls_cm.h"
-
-static void __set_tcb_field_direct(struct chtls_sock *csk,
-				   struct cpl_set_tcb_field *req, u16 word,
-				   u64 mask, u64 val, u8 cookie, int no_reply)
-{
-	struct ulptx_idata *sc;
-
-	INIT_TP_WR_CPL(req, CPL_SET_TCB_FIELD, csk->tid);
-	req->wr.wr_mid |= htonl(FW_WR_FLOWID_V(csk->tid));
-	req->reply_ctrl = htons(NO_REPLY_V(no_reply) |
-				QUEUENO_V(csk->rss_qid));
-	req->word_cookie = htons(TCB_WORD_V(word) | TCB_COOKIE_V(cookie));
-	req->mask = cpu_to_be64(mask);
-	req->val = cpu_to_be64(val);
-	sc = (struct ulptx_idata *)(req + 1);
-	sc->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_NOOP));
-	sc->len = htonl(0);
-}
-
-static void __set_tcb_field(struct sock *sk, struct sk_buff *skb, u16 word,
-			    u64 mask, u64 val, u8 cookie, int no_reply)
-{
-	struct cpl_set_tcb_field *req;
-	struct chtls_sock *csk;
-	struct ulptx_idata *sc;
-	unsigned int wrlen;
-
-	wrlen = roundup(sizeof(*req) + sizeof(*sc), 16);
-	csk = rcu_dereference_sk_user_data(sk);
-
-	req = (struct cpl_set_tcb_field *)__skb_put(skb, wrlen);
-	__set_tcb_field_direct(csk, req, word, mask, val, cookie, no_reply);
-	set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id);
-}
-
-/*
- * Send control message to HW, message go as immediate data and packet
- * is freed immediately.
- */
-static int chtls_set_tcb_field(struct sock *sk, u16 word, u64 mask, u64 val)
-{
-	struct cpl_set_tcb_field *req;
-	unsigned int credits_needed;
-	struct chtls_sock *csk;
-	struct ulptx_idata *sc;
-	struct sk_buff *skb;
-	unsigned int wrlen;
-	int ret;
-
-	wrlen = roundup(sizeof(*req) + sizeof(*sc), 16);
-
-	skb = alloc_skb(wrlen, GFP_ATOMIC);
-	if (!skb)
-		return -ENOMEM;
-
-	credits_needed = DIV_ROUND_UP(wrlen, 16);
-	csk = rcu_dereference_sk_user_data(sk);
-
-	__set_tcb_field(sk, skb, word, mask, val, 0, 1);
-	skb_set_queue_mapping(skb, (csk->txq_idx << 1) | CPL_PRIORITY_DATA);
-	csk->wr_credits -= credits_needed;
-	csk->wr_unacked += credits_needed;
-	enqueue_wr(csk, skb);
-	ret = cxgb4_ofld_send(csk->egress_dev, skb);
-	if (ret < 0)
-		kfree_skb(skb);
-	return ret < 0 ? ret : 0;
-}
-
-/*
- * Set one of the t_flags bits in the TCB.
- */
-int chtls_set_tcb_tflag(struct sock *sk, unsigned int bit_pos, int val)
-{
-	return chtls_set_tcb_field(sk, 1, 1ULL << bit_pos,
-				   (u64)val << bit_pos);
-}
-
-static int chtls_set_tcb_keyid(struct sock *sk, int keyid)
-{
-	return chtls_set_tcb_field(sk, 31, 0xFFFFFFFFULL, keyid);
-}
-
-static int chtls_set_tcb_seqno(struct sock *sk)
-{
-	return chtls_set_tcb_field(sk, 28, ~0ULL, 0);
-}
-
-static int chtls_set_tcb_quiesce(struct sock *sk, int val)
-{
-	return chtls_set_tcb_field(sk, 1, (1ULL << TF_RX_QUIESCE_S),
-				   TF_RX_QUIESCE_V(val));
-}
-
-/* TLS Key bitmap processing */
-int chtls_init_kmap(struct chtls_dev *cdev, struct cxgb4_lld_info *lldi)
-{
-	unsigned int num_key_ctx, bsize;
-	int ksize;
-
-	num_key_ctx = (lldi->vr->key.size / TLS_KEY_CONTEXT_SZ);
-	bsize = BITS_TO_LONGS(num_key_ctx);
-
-	cdev->kmap.size = num_key_ctx;
-	cdev->kmap.available = bsize;
-	ksize = sizeof(*cdev->kmap.addr) * bsize;
-	cdev->kmap.addr = kvzalloc(ksize, GFP_KERNEL);
-	if (!cdev->kmap.addr)
-		return -ENOMEM;
-
-	cdev->kmap.start = lldi->vr->key.start;
-	spin_lock_init(&cdev->kmap.lock);
-	return 0;
-}
-
-static int get_new_keyid(struct chtls_sock *csk, u32 optname)
-{
-	struct net_device *dev = csk->egress_dev;
-	struct chtls_dev *cdev = csk->cdev;
-	struct chtls_hws *hws;
-	struct adapter *adap;
-	int keyid;
-
-	adap = netdev2adap(dev);
-	hws = &csk->tlshws;
-
-	spin_lock_bh(&cdev->kmap.lock);
-	keyid = find_first_zero_bit(cdev->kmap.addr, cdev->kmap.size);
-	if (keyid < cdev->kmap.size) {
-		__set_bit(keyid, cdev->kmap.addr);
-		if (optname == TLS_RX)
-			hws->rxkey = keyid;
-		else
-			hws->txkey = keyid;
-		atomic_inc(&adap->chcr_stats.tls_key);
-	} else {
-		keyid = -1;
-	}
-	spin_unlock_bh(&cdev->kmap.lock);
-	return keyid;
-}
-
-void free_tls_keyid(struct sock *sk)
-{
-	struct chtls_sock *csk = rcu_dereference_sk_user_data(sk);
-	struct net_device *dev = csk->egress_dev;
-	struct chtls_dev *cdev = csk->cdev;
-	struct chtls_hws *hws;
-	struct adapter *adap;
-
-	if (!cdev->kmap.addr)
-		return;
-
-	adap = netdev2adap(dev);
-	hws = &csk->tlshws;
-
-	spin_lock_bh(&cdev->kmap.lock);
-	if (hws->rxkey >= 0) {
-		__clear_bit(hws->rxkey, cdev->kmap.addr);
-		atomic_dec(&adap->chcr_stats.tls_key);
-		hws->rxkey = -1;
-	}
-	if (hws->txkey >= 0) {
-		__clear_bit(hws->txkey, cdev->kmap.addr);
-		atomic_dec(&adap->chcr_stats.tls_key);
-		hws->txkey = -1;
-	}
-	spin_unlock_bh(&cdev->kmap.lock);
-}
-
-unsigned int keyid_to_addr(int start_addr, int keyid)
-{
-	return (start_addr + (keyid * TLS_KEY_CONTEXT_SZ)) >> 5;
-}
-
-static void chtls_rxkey_ivauth(struct _key_ctx *kctx)
-{
-	kctx->iv_to_auth = cpu_to_be64(KEYCTX_TX_WR_IV_V(6ULL) |
-				  KEYCTX_TX_WR_AAD_V(1ULL) |
-				  KEYCTX_TX_WR_AADST_V(5ULL) |
-				  KEYCTX_TX_WR_CIPHER_V(14ULL) |
-				  KEYCTX_TX_WR_CIPHERST_V(0ULL) |
-				  KEYCTX_TX_WR_AUTH_V(14ULL) |
-				  KEYCTX_TX_WR_AUTHST_V(16ULL) |
-				  KEYCTX_TX_WR_AUTHIN_V(16ULL));
-}
-
-static int chtls_key_info(struct chtls_sock *csk,
-			  struct _key_ctx *kctx,
-			  u32 keylen, u32 optname,
-			  int cipher_type)
-{
-	unsigned char key[AES_MAX_KEY_SIZE];
-	unsigned char *key_p, *salt;
-	unsigned char ghash_h[AEAD_H_SIZE];
-	int ck_size, key_ctx_size, kctx_mackey_size, salt_size;
-	struct crypto_aes_ctx aes;
-	int ret;
-
-	key_ctx_size = sizeof(struct _key_ctx) +
-		       roundup(keylen, 16) + AEAD_H_SIZE;
-
-	/* GCM mode of AES supports 128 and 256 bit encryption, so
-	 * prepare key context base on GCM cipher type
-	 */
-	switch (cipher_type) {
-	case TLS_CIPHER_AES_GCM_128: {
-		struct tls12_crypto_info_aes_gcm_128 *gcm_ctx_128 =
-			(struct tls12_crypto_info_aes_gcm_128 *)
-					&csk->tlshws.crypto_info;
-		memcpy(key, gcm_ctx_128->key, keylen);
-
-		key_p            = gcm_ctx_128->key;
-		salt             = gcm_ctx_128->salt;
-		ck_size          = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
-		salt_size        = TLS_CIPHER_AES_GCM_128_SALT_SIZE;
-		kctx_mackey_size = CHCR_KEYCTX_MAC_KEY_SIZE_128;
-		break;
-	}
-	case TLS_CIPHER_AES_GCM_256: {
-		struct tls12_crypto_info_aes_gcm_256 *gcm_ctx_256 =
-			(struct tls12_crypto_info_aes_gcm_256 *)
-					&csk->tlshws.crypto_info;
-		memcpy(key, gcm_ctx_256->key, keylen);
-
-		key_p            = gcm_ctx_256->key;
-		salt             = gcm_ctx_256->salt;
-		ck_size          = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
-		salt_size        = TLS_CIPHER_AES_GCM_256_SALT_SIZE;
-		kctx_mackey_size = CHCR_KEYCTX_MAC_KEY_SIZE_256;
-		break;
-	}
-	default:
-		pr_err("GCM: Invalid key length %d\n", keylen);
-		return -EINVAL;
-	}
-
-	/* Calculate the H = CIPH(K, 0 repeated 16 times).
-	 * It will go in key context
-	 */
-	ret = aes_expandkey(&aes, key, keylen);
-	if (ret)
-		return ret;
-
-	memset(ghash_h, 0, AEAD_H_SIZE);
-	aes_encrypt(&aes, ghash_h, ghash_h);
-	memzero_explicit(&aes, sizeof(aes));
-	csk->tlshws.keylen = key_ctx_size;
-
-	/* Copy the Key context */
-	if (optname == TLS_RX) {
-		int key_ctx;
-
-		key_ctx = ((key_ctx_size >> 4) << 3);
-		kctx->ctx_hdr = FILL_KEY_CRX_HDR(ck_size,
-						 kctx_mackey_size,
-						 0, 0, key_ctx);
-		chtls_rxkey_ivauth(kctx);
-	} else {
-		kctx->ctx_hdr = FILL_KEY_CTX_HDR(ck_size,
-						 kctx_mackey_size,
-						 0, 0, key_ctx_size >> 4);
-	}
-
-	memcpy(kctx->salt, salt, salt_size);
-	memcpy(kctx->key, key_p, keylen);
-	memcpy(kctx->key + keylen, ghash_h, AEAD_H_SIZE);
-	/* erase key info from driver */
-	memset(key_p, 0, keylen);
-
-	return 0;
-}
-
-static void chtls_set_scmd(struct chtls_sock *csk)
-{
-	struct chtls_hws *hws = &csk->tlshws;
-
-	hws->scmd.seqno_numivs =
-		SCMD_SEQ_NO_CTRL_V(3) |
-		SCMD_PROTO_VERSION_V(0) |
-		SCMD_ENC_DEC_CTRL_V(0) |
-		SCMD_CIPH_AUTH_SEQ_CTRL_V(1) |
-		SCMD_CIPH_MODE_V(2) |
-		SCMD_AUTH_MODE_V(4) |
-		SCMD_HMAC_CTRL_V(0) |
-		SCMD_IV_SIZE_V(4) |
-		SCMD_NUM_IVS_V(1);
-
-	hws->scmd.ivgen_hdrlen =
-		SCMD_IV_GEN_CTRL_V(1) |
-		SCMD_KEY_CTX_INLINE_V(0) |
-		SCMD_TLS_FRAG_ENABLE_V(1);
-}
-
-int chtls_setkey(struct chtls_sock *csk, u32 keylen,
-		 u32 optname, int cipher_type)
-{
-	struct tls_key_req *kwr;
-	struct chtls_dev *cdev;
-	struct _key_ctx *kctx;
-	int wrlen, klen, len;
-	struct sk_buff *skb;
-	struct sock *sk;
-	int keyid;
-	int kaddr;
-	int ret;
-
-	cdev = csk->cdev;
-	sk = csk->sk;
-
-	klen = roundup((keylen + AEAD_H_SIZE) + sizeof(*kctx), 32);
-	wrlen = roundup(sizeof(*kwr), 16);
-	len = klen + wrlen;
-
-	/* Flush out-standing data before new key takes effect */
-	if (optname == TLS_TX) {
-		lock_sock(sk);
-		if (skb_queue_len(&csk->txq))
-			chtls_push_frames(csk, 0);
-		release_sock(sk);
-	}
-
-	skb = alloc_skb(len, GFP_KERNEL);
-	if (!skb)
-		return -ENOMEM;
-
-	keyid = get_new_keyid(csk, optname);
-	if (keyid < 0) {
-		ret = -ENOSPC;
-		goto out_nokey;
-	}
-
-	kaddr = keyid_to_addr(cdev->kmap.start, keyid);
-	kwr = (struct tls_key_req *)__skb_put_zero(skb, len);
-	kwr->wr.op_to_compl =
-		cpu_to_be32(FW_WR_OP_V(FW_ULPTX_WR) | FW_WR_COMPL_F |
-		      FW_WR_ATOMIC_V(1U));
-	kwr->wr.flowid_len16 =
-		cpu_to_be32(FW_WR_LEN16_V(DIV_ROUND_UP(len, 16) |
-			    FW_WR_FLOWID_V(csk->tid)));
-	kwr->wr.protocol = 0;
-	kwr->wr.mfs = htons(TLS_MFS);
-	kwr->wr.reneg_to_write_rx = optname;
-
-	/* ulptx command */
-	kwr->req.cmd = cpu_to_be32(ULPTX_CMD_V(ULP_TX_MEM_WRITE) |
-			    T5_ULP_MEMIO_ORDER_V(1) |
-			    T5_ULP_MEMIO_IMM_V(1));
-	kwr->req.len16 = cpu_to_be32((csk->tid << 8) |
-			      DIV_ROUND_UP(len - sizeof(kwr->wr), 16));
-	kwr->req.dlen = cpu_to_be32(ULP_MEMIO_DATA_LEN_V(klen >> 5));
-	kwr->req.lock_addr = cpu_to_be32(ULP_MEMIO_ADDR_V(kaddr));
-
-	/* sub command */
-	kwr->sc_imm.cmd_more = cpu_to_be32(ULPTX_CMD_V(ULP_TX_SC_IMM));
-	kwr->sc_imm.len = cpu_to_be32(klen);
-
-	lock_sock(sk);
-	/* key info */
-	kctx = (struct _key_ctx *)(kwr + 1);
-	ret = chtls_key_info(csk, kctx, keylen, optname, cipher_type);
-	if (ret)
-		goto out_notcb;
-
-	set_wr_txq(skb, CPL_PRIORITY_DATA, csk->tlshws.txqid);
-	csk->wr_credits -= DIV_ROUND_UP(len, 16);
-	csk->wr_unacked += DIV_ROUND_UP(len, 16);
-	enqueue_wr(csk, skb);
-	cxgb4_ofld_send(csk->egress_dev, skb);
-
-	chtls_set_scmd(csk);
-	/* Clear quiesce for Rx key */
-	if (optname == TLS_RX) {
-		ret = chtls_set_tcb_keyid(sk, keyid);
-		if (ret)
-			goto out_notcb;
-		ret = chtls_set_tcb_field(sk, 0,
-					  TCB_ULP_RAW_V(TCB_ULP_RAW_M),
-					  TCB_ULP_RAW_V((TF_TLS_KEY_SIZE_V(1) |
-					  TF_TLS_CONTROL_V(1) |
-					  TF_TLS_ACTIVE_V(1) |
-					  TF_TLS_ENABLE_V(1))));
-		if (ret)
-			goto out_notcb;
-		ret = chtls_set_tcb_seqno(sk);
-		if (ret)
-			goto out_notcb;
-		ret = chtls_set_tcb_quiesce(sk, 0);
-		if (ret)
-			goto out_notcb;
-		csk->tlshws.rxkey = keyid;
-	} else {
-		csk->tlshws.tx_seq_no = 0;
-		csk->tlshws.txkey = keyid;
-	}
-
-	release_sock(sk);
-	return ret;
-out_notcb:
-	release_sock(sk);
-	free_tls_keyid(sk);
-out_nokey:
-	kfree_skb(skb);
-	return ret;
-}