220 lines
5.8 KiB
C
220 lines
5.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2018 Chelsio Communications, Inc.
|
|
*/
|
|
|
|
#ifndef __CHTLS_CM_H__
|
|
#define __CHTLS_CM_H__
|
|
|
|
/*
|
|
* TCB settings
|
|
*/
|
|
/* 3:0 */
|
|
#define TCB_ULP_TYPE_W 0
|
|
#define TCB_ULP_TYPE_S 0
|
|
#define TCB_ULP_TYPE_M 0xfULL
|
|
#define TCB_ULP_TYPE_V(x) ((x) << TCB_ULP_TYPE_S)
|
|
|
|
/* 11:4 */
|
|
#define TCB_ULP_RAW_W 0
|
|
#define TCB_ULP_RAW_S 4
|
|
#define TCB_ULP_RAW_M 0xffULL
|
|
#define TCB_ULP_RAW_V(x) ((x) << TCB_ULP_RAW_S)
|
|
|
|
#define TF_TLS_KEY_SIZE_S 7
|
|
#define TF_TLS_KEY_SIZE_V(x) ((x) << TF_TLS_KEY_SIZE_S)
|
|
|
|
#define TF_TLS_CONTROL_S 2
|
|
#define TF_TLS_CONTROL_V(x) ((x) << TF_TLS_CONTROL_S)
|
|
|
|
#define TF_TLS_ACTIVE_S 1
|
|
#define TF_TLS_ACTIVE_V(x) ((x) << TF_TLS_ACTIVE_S)
|
|
|
|
#define TF_TLS_ENABLE_S 0
|
|
#define TF_TLS_ENABLE_V(x) ((x) << TF_TLS_ENABLE_S)
|
|
|
|
#define TF_RX_QUIESCE_S 15
|
|
#define TF_RX_QUIESCE_V(x) ((x) << TF_RX_QUIESCE_S)
|
|
|
|
/*
|
|
* Max receive window supported by HW in bytes. Only a small part of it can
|
|
* be set through option0, the rest needs to be set through RX_DATA_ACK.
|
|
*/
|
|
#define MAX_RCV_WND ((1U << 27) - 1)
|
|
#define MAX_MSS 65536
|
|
|
|
/*
|
|
* Min receive window. We want it to be large enough to accommodate receive
|
|
* coalescing, handle jumbo frames, and not trigger sender SWS avoidance.
|
|
*/
|
|
#define MIN_RCV_WND (24 * 1024U)
|
|
#define LOOPBACK(x) (((x) & htonl(0xff000000)) == htonl(0x7f000000))
|
|
|
|
/* for TX: a skb must have a headroom of at least TX_HEADER_LEN bytes */
|
|
#define TX_HEADER_LEN \
|
|
(sizeof(struct fw_ofld_tx_data_wr) + sizeof(struct sge_opaque_hdr))
|
|
#define TX_TLSHDR_LEN \
|
|
(sizeof(struct fw_tlstx_data_wr) + sizeof(struct cpl_tx_tls_sfo) + \
|
|
sizeof(struct sge_opaque_hdr))
|
|
#define TXDATA_SKB_LEN 128
|
|
|
|
enum {
|
|
CPL_TX_TLS_SFO_TYPE_CCS,
|
|
CPL_TX_TLS_SFO_TYPE_ALERT,
|
|
CPL_TX_TLS_SFO_TYPE_HANDSHAKE,
|
|
CPL_TX_TLS_SFO_TYPE_DATA,
|
|
CPL_TX_TLS_SFO_TYPE_HEARTBEAT,
|
|
};
|
|
|
|
enum {
|
|
TLS_HDR_TYPE_CCS = 20,
|
|
TLS_HDR_TYPE_ALERT,
|
|
TLS_HDR_TYPE_HANDSHAKE,
|
|
TLS_HDR_TYPE_RECORD,
|
|
TLS_HDR_TYPE_HEARTBEAT,
|
|
};
|
|
|
|
typedef void (*defer_handler_t)(struct chtls_dev *dev, struct sk_buff *skb);
|
|
extern struct request_sock_ops chtls_rsk_ops;
|
|
extern struct request_sock_ops chtls_rsk_opsv6;
|
|
|
|
struct deferred_skb_cb {
|
|
defer_handler_t handler;
|
|
struct chtls_dev *dev;
|
|
};
|
|
|
|
#define DEFERRED_SKB_CB(skb) ((struct deferred_skb_cb *)(skb)->cb)
|
|
#define failover_flowc_wr_len offsetof(struct fw_flowc_wr, mnemval[3])
|
|
#define WR_SKB_CB(skb) ((struct wr_skb_cb *)(skb)->cb)
|
|
#define ACCEPT_QUEUE(sk) (&inet_csk(sk)->icsk_accept_queue.rskq_accept_head)
|
|
|
|
#define SND_WSCALE(tp) ((tp)->rx_opt.snd_wscale)
|
|
#define RCV_WSCALE(tp) ((tp)->rx_opt.rcv_wscale)
|
|
#define USER_MSS(tp) ((tp)->rx_opt.user_mss)
|
|
#define TS_RECENT_STAMP(tp) ((tp)->rx_opt.ts_recent_stamp)
|
|
#define WSCALE_OK(tp) ((tp)->rx_opt.wscale_ok)
|
|
#define TSTAMP_OK(tp) ((tp)->rx_opt.tstamp_ok)
|
|
#define SACK_OK(tp) ((tp)->rx_opt.sack_ok)
|
|
#define INC_ORPHAN_COUNT(sk) this_cpu_inc(*(sk)->sk_prot->orphan_count)
|
|
|
|
/* TLS SKB */
|
|
#define skb_ulp_tls_inline(skb) (ULP_SKB_CB(skb)->ulp.tls.ofld)
|
|
#define skb_ulp_tls_iv_imm(skb) (ULP_SKB_CB(skb)->ulp.tls.iv)
|
|
|
|
void chtls_defer_reply(struct sk_buff *skb, struct chtls_dev *dev,
|
|
defer_handler_t handler);
|
|
|
|
/*
|
|
* Returns true if the socket is in one of the supplied states.
|
|
*/
|
|
static inline unsigned int sk_in_state(const struct sock *sk,
|
|
unsigned int states)
|
|
{
|
|
return states & (1 << sk->sk_state);
|
|
}
|
|
|
|
static void chtls_rsk_destructor(struct request_sock *req)
|
|
{
|
|
/* do nothing */
|
|
}
|
|
|
|
static inline void chtls_init_rsk_ops(struct proto *chtls_tcp_prot,
|
|
struct request_sock_ops *chtls_tcp_ops,
|
|
struct proto *tcp_prot, int family)
|
|
{
|
|
memset(chtls_tcp_ops, 0, sizeof(*chtls_tcp_ops));
|
|
chtls_tcp_ops->family = family;
|
|
chtls_tcp_ops->obj_size = sizeof(struct tcp_request_sock);
|
|
chtls_tcp_ops->destructor = chtls_rsk_destructor;
|
|
chtls_tcp_ops->slab = tcp_prot->rsk_prot->slab;
|
|
chtls_tcp_prot->rsk_prot = chtls_tcp_ops;
|
|
}
|
|
|
|
static inline void chtls_reqsk_free(struct request_sock *req)
|
|
{
|
|
if (req->rsk_listener)
|
|
sock_put(req->rsk_listener);
|
|
kmem_cache_free(req->rsk_ops->slab, req);
|
|
}
|
|
|
|
#define DECLARE_TASK_FUNC(task, task_param) \
|
|
static void task(struct work_struct *task_param)
|
|
|
|
static inline void sk_wakeup_sleepers(struct sock *sk, bool interruptable)
|
|
{
|
|
struct socket_wq *wq;
|
|
|
|
rcu_read_lock();
|
|
wq = rcu_dereference(sk->sk_wq);
|
|
if (skwq_has_sleeper(wq)) {
|
|
if (interruptable)
|
|
wake_up_interruptible(sk_sleep(sk));
|
|
else
|
|
wake_up_all(sk_sleep(sk));
|
|
}
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static inline void chtls_set_req_port(struct request_sock *oreq,
|
|
__be16 source, __be16 dest)
|
|
{
|
|
inet_rsk(oreq)->ir_rmt_port = source;
|
|
inet_rsk(oreq)->ir_num = ntohs(dest);
|
|
}
|
|
|
|
static inline void chtls_set_req_addr(struct request_sock *oreq,
|
|
__be32 local_ip, __be32 peer_ip)
|
|
{
|
|
inet_rsk(oreq)->ir_loc_addr = local_ip;
|
|
inet_rsk(oreq)->ir_rmt_addr = peer_ip;
|
|
}
|
|
|
|
static inline void chtls_free_skb(struct sock *sk, struct sk_buff *skb)
|
|
{
|
|
skb_dst_set(skb, NULL);
|
|
__skb_unlink(skb, &sk->sk_receive_queue);
|
|
__kfree_skb(skb);
|
|
}
|
|
|
|
static inline void chtls_kfree_skb(struct sock *sk, struct sk_buff *skb)
|
|
{
|
|
skb_dst_set(skb, NULL);
|
|
__skb_unlink(skb, &sk->sk_receive_queue);
|
|
kfree_skb(skb);
|
|
}
|
|
|
|
static inline void chtls_reset_wr_list(struct chtls_sock *csk)
|
|
{
|
|
csk->wr_skb_head = NULL;
|
|
csk->wr_skb_tail = NULL;
|
|
}
|
|
|
|
static inline void enqueue_wr(struct chtls_sock *csk, struct sk_buff *skb)
|
|
{
|
|
WR_SKB_CB(skb)->next_wr = NULL;
|
|
|
|
skb_get(skb);
|
|
|
|
if (!csk->wr_skb_head)
|
|
csk->wr_skb_head = skb;
|
|
else
|
|
WR_SKB_CB(csk->wr_skb_tail)->next_wr = skb;
|
|
csk->wr_skb_tail = skb;
|
|
}
|
|
|
|
static inline struct sk_buff *dequeue_wr(struct sock *sk)
|
|
{
|
|
struct chtls_sock *csk = rcu_dereference_sk_user_data(sk);
|
|
struct sk_buff *skb = NULL;
|
|
|
|
skb = csk->wr_skb_head;
|
|
|
|
if (likely(skb)) {
|
|
/* Don't bother clearing the tail */
|
|
csk->wr_skb_head = WR_SKB_CB(skb)->next_wr;
|
|
WR_SKB_CB(skb)->next_wr = NULL;
|
|
}
|
|
return skb;
|
|
}
|
|
#endif
|