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path: root/drivers/crypto/chelsio/chcr_ipsec.c
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Diffstat (limited to 'drivers/crypto/chelsio/chcr_ipsec.c')
-rw-r--r--drivers/crypto/chelsio/chcr_ipsec.c42
1 files changed, 25 insertions, 17 deletions
diff --git a/drivers/crypto/chelsio/chcr_ipsec.c b/drivers/crypto/chelsio/chcr_ipsec.c
index 2fb48cce4462..2f60049361ef 100644
--- a/drivers/crypto/chelsio/chcr_ipsec.c
+++ b/drivers/crypto/chelsio/chcr_ipsec.c
@@ -303,6 +303,9 @@ static bool chcr_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *x)
if (ipv6_ext_hdr(ipv6_hdr(skb)->nexthdr))
return false;
}
+ /* Inline single pdu */
+ if (skb_shinfo(skb)->gso_size)
+ return false;
return true;
}
@@ -333,7 +336,8 @@ static inline int is_eth_imm(const struct sk_buff *skb,
}
static inline unsigned int calc_tx_sec_flits(const struct sk_buff *skb,
- struct ipsec_sa_entry *sa_entry)
+ struct ipsec_sa_entry *sa_entry,
+ bool *immediate)
{
unsigned int kctx_len;
unsigned int flits;
@@ -351,8 +355,10 @@ static inline unsigned int calc_tx_sec_flits(const struct sk_buff *skb,
* TX Packet header plus the skb data in the Work Request.
*/
- if (hdrlen)
+ if (hdrlen) {
+ *immediate = true;
return DIV_ROUND_UP(skb->len + hdrlen, sizeof(__be64));
+ }
flits = sgl_len(skb_shinfo(skb)->nr_frags + 1);
@@ -415,12 +421,12 @@ inline void *copy_esn_pktxt(struct sk_buff *skb,
iv = skb_transport_header(skb) + sizeof(struct ip_esp_hdr);
memcpy(aadiv->iv, iv, 8);
- if (sa_entry->imm) {
+ if (is_eth_imm(skb, sa_entry) && !skb_is_nonlinear(skb)) {
sc_imm = (struct ulptx_idata *)(pos +
(DIV_ROUND_UP(sizeof(struct chcr_ipsec_aadiv),
sizeof(__be64)) << 3));
- sc_imm->cmd_more = FILL_CMD_MORE(!sa_entry->imm);
- sc_imm->len = cpu_to_be32(sa_entry->imm);
+ sc_imm->cmd_more = FILL_CMD_MORE(0);
+ sc_imm->len = cpu_to_be32(skb->len);
}
pos += len;
return pos;
@@ -528,15 +534,18 @@ inline void *chcr_crypto_wreq(struct sk_buff *skb,
struct adapter *adap = pi->adapter;
unsigned int ivsize = GCM_ESP_IV_SIZE;
struct chcr_ipsec_wr *wr;
+ bool immediate = false;
u16 immdatalen = 0;
unsigned int flits;
u32 ivinoffset;
u32 aadstart;
u32 aadstop;
u32 ciphstart;
+ u16 sc_more = 0;
u32 ivdrop = 0;
u32 esnlen = 0;
u32 wr_mid;
+ u16 ndesc;
int qidx = skb_get_queue_mapping(skb);
struct sge_eth_txq *q = &adap->sge.ethtxq[qidx + pi->first_qset];
unsigned int kctx_len = sa_entry->kctx_len;
@@ -544,22 +553,24 @@ inline void *chcr_crypto_wreq(struct sk_buff *skb,
atomic_inc(&adap->chcr_stats.ipsec_cnt);
- flits = calc_tx_sec_flits(skb, sa_entry);
+ flits = calc_tx_sec_flits(skb, sa_entry, &immediate);
+ ndesc = DIV_ROUND_UP(flits, 2);
if (sa_entry->esn)
ivdrop = 1;
- if (is_eth_imm(skb, sa_entry)) {
+ if (immediate)
immdatalen = skb->len;
- sa_entry->imm = immdatalen;
- }
- if (sa_entry->esn)
+ if (sa_entry->esn) {
esnlen = sizeof(struct chcr_ipsec_aadiv);
+ if (!skb_is_nonlinear(skb))
+ sc_more = 1;
+ }
/* WR Header */
wr = (struct chcr_ipsec_wr *)pos;
wr->wreq.op_to_compl = htonl(FW_WR_OP_V(FW_ULPTX_WR));
- wr_mid = FW_CRYPTO_LOOKASIDE_WR_LEN16_V(DIV_ROUND_UP(flits, 2));
+ wr_mid = FW_CRYPTO_LOOKASIDE_WR_LEN16_V(ndesc);
if (unlikely(credits < ETHTXQ_STOP_THRES)) {
netif_tx_stop_queue(q->txq);
@@ -571,10 +582,10 @@ inline void *chcr_crypto_wreq(struct sk_buff *skb,
/* ULPTX */
wr->req.ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(pi->port_id, qid);
- wr->req.ulptx.len = htonl(DIV_ROUND_UP(flits, 2) - 1);
+ wr->req.ulptx.len = htonl(ndesc - 1);
/* Sub-command */
- wr->req.sc_imm.cmd_more = FILL_CMD_MORE(!immdatalen);
+ wr->req.sc_imm.cmd_more = FILL_CMD_MORE(!immdatalen || sc_more);
wr->req.sc_imm.len = cpu_to_be32(sizeof(struct cpl_tx_sec_pdu) +
sizeof(wr->req.key_ctx) +
kctx_len +
@@ -697,7 +708,7 @@ out_free: dev_kfree_skb_any(skb);
cxgb4_reclaim_completed_tx(adap, &q->q, true);
- flits = calc_tx_sec_flits(skb, sa_entry);
+ flits = calc_tx_sec_flits(skb, sa_entry, &immediate);
ndesc = flits_to_desc(flits);
credits = txq_avail(&q->q) - ndesc;
@@ -710,9 +721,6 @@ out_free: dev_kfree_skb_any(skb);
return NETDEV_TX_BUSY;
}
- if (is_eth_imm(skb, sa_entry))
- immediate = true;
-
if (!immediate &&
unlikely(cxgb4_map_skb(adap->pdev_dev, skb, addr) < 0)) {
q->mapping_err++;