diff options
Diffstat (limited to 'net/packet/af_packet.c')
| -rw-r--r-- | net/packet/af_packet.c | 57 |
1 files changed, 29 insertions, 28 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 118cd66b7516..30c6879d6774 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -408,17 +408,17 @@ static int __packet_get_status(const struct packet_sock *po, void *frame) } } -static __u32 tpacket_get_timestamp(struct sk_buff *skb, struct timespec *ts, +static __u32 tpacket_get_timestamp(struct sk_buff *skb, struct timespec64 *ts, unsigned int flags) { struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); if (shhwtstamps && (flags & SOF_TIMESTAMPING_RAW_HARDWARE) && - ktime_to_timespec_cond(shhwtstamps->hwtstamp, ts)) + ktime_to_timespec64_cond(shhwtstamps->hwtstamp, ts)) return TP_STATUS_TS_RAW_HARDWARE; - if (ktime_to_timespec_cond(skb->tstamp, ts)) + if (ktime_to_timespec64_cond(skb->tstamp, ts)) return TP_STATUS_TS_SOFTWARE; return 0; @@ -428,13 +428,20 @@ static __u32 __packet_set_timestamp(struct packet_sock *po, void *frame, struct sk_buff *skb) { union tpacket_uhdr h; - struct timespec ts; + struct timespec64 ts; __u32 ts_status; if (!(ts_status = tpacket_get_timestamp(skb, &ts, po->tp_tstamp))) return 0; h.raw = frame; + /* + * versions 1 through 3 overflow the timestamps in y2106, since they + * all store the seconds in a 32-bit unsigned integer. + * If we create a version 4, that should have a 64-bit timestamp, + * either 64-bit seconds + 32-bit nanoseconds, or just 64-bit + * nanoseconds. + */ switch (po->tp_version) { case TPACKET_V1: h.h1->tp_sec = ts.tv_sec; @@ -520,7 +527,7 @@ static int prb_calc_retire_blk_tmo(struct packet_sock *po, int blk_size_in_bytes) { struct net_device *dev; - unsigned int mbits = 0, msec = 0, div = 0, tmo = 0; + unsigned int mbits, div; struct ethtool_link_ksettings ecmd; int err; @@ -532,31 +539,25 @@ static int prb_calc_retire_blk_tmo(struct packet_sock *po, } err = __ethtool_get_link_ksettings(dev, &ecmd); rtnl_unlock(); - if (!err) { - /* - * If the link speed is so slow you don't really - * need to worry about perf anyways - */ - if (ecmd.base.speed < SPEED_1000 || - ecmd.base.speed == SPEED_UNKNOWN) { - return DEFAULT_PRB_RETIRE_TOV; - } else { - msec = 1; - div = ecmd.base.speed / 1000; - } - } else + if (err) + return DEFAULT_PRB_RETIRE_TOV; + + /* If the link speed is so slow you don't really + * need to worry about perf anyways + */ + if (ecmd.base.speed < SPEED_1000 || + ecmd.base.speed == SPEED_UNKNOWN) return DEFAULT_PRB_RETIRE_TOV; + div = ecmd.base.speed / 1000; mbits = (blk_size_in_bytes * 8) / (1024 * 1024); if (div) mbits /= div; - tmo = mbits * msec; - if (div) - return tmo+1; - return tmo; + return mbits + 1; + return mbits; } static void prb_init_ft_ops(struct tpacket_kbdq_core *p1, @@ -775,8 +776,8 @@ static void prb_close_block(struct tpacket_kbdq_core *pkc1, * It shouldn't really happen as we don't close empty * blocks. See prb_retire_rx_blk_timer_expired(). */ - struct timespec ts; - getnstimeofday(&ts); + struct timespec64 ts; + ktime_get_real_ts64(&ts); h1->ts_last_pkt.ts_sec = ts.tv_sec; h1->ts_last_pkt.ts_nsec = ts.tv_nsec; } @@ -806,7 +807,7 @@ static void prb_thaw_queue(struct tpacket_kbdq_core *pkc) static void prb_open_block(struct tpacket_kbdq_core *pkc1, struct tpacket_block_desc *pbd1) { - struct timespec ts; + struct timespec64 ts; struct tpacket_hdr_v1 *h1 = &pbd1->hdr.bh1; smp_rmb(); @@ -819,7 +820,7 @@ static void prb_open_block(struct tpacket_kbdq_core *pkc1, BLOCK_NUM_PKTS(pbd1) = 0; BLOCK_LEN(pbd1) = BLK_PLUS_PRIV(pkc1->blk_sizeof_priv); - getnstimeofday(&ts); + ktime_get_real_ts64(&ts); h1->ts_first_pkt.ts_sec = ts.tv_sec; h1->ts_first_pkt.ts_nsec = ts.tv_nsec; @@ -2169,7 +2170,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, unsigned long status = TP_STATUS_USER; unsigned short macoff, netoff, hdrlen; struct sk_buff *copy_skb = NULL; - struct timespec ts; + struct timespec64 ts; __u32 ts_status; bool is_drop_n_account = false; bool do_vnet = false; @@ -2301,7 +2302,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, skb_copy_bits(skb, 0, h.raw + macoff, snaplen); if (!(ts_status = tpacket_get_timestamp(skb, &ts, po->tp_tstamp))) - getnstimeofday(&ts); + ktime_get_real_ts64(&ts); status |= ts_status; |