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crypto: chelsio - request to HW should wrap 

-Tx request and data is copied to HW Q in 64B desc, check for
end of queue and adjust the current position to start from
beginning before passing the additional request info.
-key context copy should check key length only
-Few reverse christmas tree correction

Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Atul Gupta 2018-05-10 10:14:42 +05:30 committed by Herbert Xu
parent 7024e0da72
commit 4c826fed67
1 changed files with 17 additions and 18 deletions
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27
drivers/crypto/chelsio/chcr_ipsec.c
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@ -346,18 +346,23 @@ inline void *copy_cpltx_pktxt(struct sk_buff *skb,
struct net_device *dev,
void *pos)
{
struct cpl_tx_pkt_core *cpl;
struct sge_eth_txq *q;
struct adapter *adap;
struct port_info *pi;
struct sge_eth_txq *q;
struct cpl_tx_pkt_core *cpl;
u64 cntrl = 0;
u32 ctrl0, qidx;
u64 cntrl = 0;
int left;
pi = netdev_priv(dev);
adap = pi->adapter;
qidx = skb->queue_mapping;
q = &adap->sge.ethtxq[qidx + pi->first_qset];
left = (void *)q->q.stat - pos;
if (!left)
pos = q->q.desc;
cpl = (struct cpl_tx_pkt_core *)pos;
cntrl = TXPKT_L4CSUM_DIS_F | TXPKT_IPCSUM_DIS_F;
@ -382,18 +387,17 @@ inline void *copy_key_cpltx_pktxt(struct sk_buff *skb,
void *pos,
struct ipsec_sa_entry *sa_entry)
{
struct adapter *adap;
struct port_info *pi;
struct sge_eth_txq *q;
unsigned int len, qidx;
struct _key_ctx *key_ctx;
int left, eoq, key_len;
struct sge_eth_txq *q;
struct adapter *adap;
struct port_info *pi;
unsigned int qidx;
pi = netdev_priv(dev);
adap = pi->adapter;
qidx = skb->queue_mapping;
q = &adap->sge.ethtxq[qidx + pi->first_qset];
len = sa_entry->enckey_len + sizeof(struct cpl_tx_pkt_core);
key_len = sa_entry->kctx_len;
/* end of queue, reset pos to start of queue */
@ -411,20 +415,15 @@ inline void *copy_key_cpltx_pktxt(struct sk_buff *skb,
pos += sizeof(struct _key_ctx);
left -= sizeof(struct _key_ctx);
if (likely(len <= left)) {
if (likely(key_len <= left)) {
memcpy(key_ctx->key, sa_entry->key, key_len);
pos += key_len;
} else {
if (key_len <= left) {
memcpy(pos, sa_entry->key, key_len);
pos += key_len;
} else {
memcpy(pos, sa_entry->key, left);
memcpy(q->q.desc, sa_entry->key + left,
key_len - left);
pos = (u8 *)q->q.desc + (key_len - left);
}
}
/* Copy CPL TX PKT XT */
pos = copy_cpltx_pktxt(skb, dev, pos);