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Index: sbin/ifconfig/ifconfig.c
===================================================================
--- sbin/ifconfig/ifconfig.c
+++ sbin/ifconfig/ifconfig.c
@@ -1143,7 +1143,7 @@
"\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
"\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
"\17TOE4\20TOE6\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP" \
-"\26RXCSUM_IPV6\27TXCSUM_IPV6\31TXRTLMT"
+"\26RXCSUM_IPV6\27TXCSUM_IPV6\31TXRTLMT\32HWRXTSTMP"
/*
* Print the status of the interface. If an address family was
@@ -1456,6 +1456,8 @@
DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
DEF_CMD("txrtlmt", IFCAP_TXRTLMT, setifcap),
DEF_CMD("-txrtlmt", -IFCAP_TXRTLMT, setifcap),
+ DEF_CMD("hwrxtsmp", IFCAP_HWRXTSTMP, setifcap),
+ DEF_CMD("-hwrxtsmp", -IFCAP_HWRXTSTMP, setifcap),
DEF_CMD("normal", -IFF_LINK0, setifflags),
DEF_CMD("compress", IFF_LINK0, setifflags),
DEF_CMD("noicmp", IFF_LINK1, setifflags),
Index: sys/dev/mlx5/device.h
===================================================================
--- sys/dev/mlx5/device.h
+++ sys/dev/mlx5/device.h
@@ -573,6 +573,8 @@
u8 op_own;
};
+#define MLX5_CQE_TSTMP_PTP (1ULL << 63)
+
static inline bool get_cqe_lro_timestamp_valid(struct mlx5_cqe64 *cqe)
{
return (cqe->lro_tcppsh_abort_dupack >> 7) & 1;
Index: sys/dev/mlx5/mlx5_en/en.h
===================================================================
--- sys/dev/mlx5/mlx5_en/en.h
+++ sys/dev/mlx5/mlx5_en/en.h
@@ -633,6 +633,14 @@
void *main;
};
+struct mlx5e_clbr_point {
+ uint64_t base_curr;
+ uint64_t base_prev;
+ uint64_t clbr_hw_prev;
+ uint64_t clbr_hw_curr;
+ u_int clbr_gen;
+};
+
struct mlx5e_priv {
/* priv data path fields - start */
int order_base_2_num_channels;
@@ -687,6 +695,12 @@
int media_active_last;
struct callout watchdog;
+
+ struct callout tstmp_clbr;
+ int clbr_done;
+ int clbr_curr;
+ struct mlx5e_clbr_point clbr_points[2];
+ u_int clbr_gen;
};
#define MLX5E_NET_IP_ALIGN 2
Index: sys/dev/mlx5/mlx5_en/mlx5_en_main.c
===================================================================
--- sys/dev/mlx5/mlx5_en/mlx5_en_main.c
+++ sys/dev/mlx5/mlx5_en/mlx5_en_main.c
@@ -637,6 +637,85 @@
mtx_unlock(&priv->async_events_mtx);
}
+static void mlx5e_calibration_callout(void *arg);
+static int mlx5e_calibration_duration = 20;
+static int mlx5e_fast_calibration = 1;
+static int mlx5e_normal_calibration = 30;
+
+static void
+mlx5e_reset_calibration_callout(struct mlx5e_priv *priv)
+{
+
+ if (priv->clbr_done == 0)
+ mlx5e_calibration_callout(priv);
+ else
+ callout_reset_curcpu(&priv->tstmp_clbr, (priv->clbr_done <
+ mlx5e_calibration_duration ? mlx5e_fast_calibration :
+ mlx5e_normal_calibration) * hz, mlx5e_calibration_callout,
+ priv);
+}
+
+static uint64_t
+mlx5e_timespec2usec(const struct timespec *ts)
+{
+
+ return ((uint64_t)ts->tv_sec * 1000000000 + ts->tv_nsec);
+}
+
+static uint64_t
+mlx5e_hw_clock(struct mlx5e_priv *priv)
+{
+ struct mlx5_init_seg *iseg;
+ uint32_t hw_h, hw_h1, hw_l;
+
+ iseg = priv->mdev->iseg;
+ do {
+ hw_h = ioread32be(&iseg->internal_timer_h);
+ hw_l = ioread32be(&iseg->internal_timer_l);
+ hw_h1 = ioread32be(&iseg->internal_timer_h);
+ } while (hw_h1 != hw_h);
+ return (((uint64_t)hw_h << 32) | hw_l);
+}
+
+static void
+mlx5e_calibration_callout(void *arg)
+{
+ struct mlx5e_priv *priv;
+ struct mlx5e_clbr_point *next, *curr;
+ struct timespec ts;
+ int clbr_curr_next;
+
+ priv = arg;
+ curr = &priv->clbr_points[priv->clbr_curr];
+ clbr_curr_next = priv->clbr_curr + 1;
+ if (clbr_curr_next >= nitems(priv->clbr_points))
+ clbr_curr_next = 0;
+ next = &priv->clbr_points[clbr_curr_next];
+
+ next->base_prev = curr->base_curr;
+ next->clbr_hw_prev = curr->clbr_hw_curr;
+
+ next->clbr_hw_curr = mlx5e_hw_clock(priv);
+ if (next->clbr_hw_curr == curr->clbr_hw_prev) {
+ if_printf(priv->ifp, "hw failed tstmp frozen %jx, disabling\n",
+ next->clbr_hw_curr);
+ priv->clbr_done = 0;
+ return;
+ }
+
+ nanouptime(&ts);
+ next->base_curr = mlx5e_timespec2usec(&ts);
+
+ curr->clbr_gen = 0;
+ atomic_thread_fence_rel();
+ priv->clbr_curr = clbr_curr_next;
+ atomic_store_rel_int(&next->clbr_gen, ++(priv->clbr_gen));
+
+ if (priv->clbr_done < mlx5e_calibration_duration)
+ priv->clbr_done++;
+ mlx5e_reset_calibration_callout(priv);
+}
+
static const char *mlx5e_rq_stats_desc[] = {
MLX5E_RQ_STATS(MLX5E_STATS_DESC)
};
@@ -2689,6 +2768,16 @@
mlx5e_open_locked(ifp);
}
}
+ if (mask & IFCAP_HWRXTSTMP) {
+ ifp->if_capenable ^= IFCAP_HWRXTSTMP;
+ if (ifp->if_capenable & IFCAP_HWRXTSTMP) {
+ if (priv->clbr_done == 0)
+ mlx5e_reset_calibration_callout(priv);
+ } else {
+ callout_drain(&priv->tstmp_clbr);
+ priv->clbr_done = 0;
+ }
+ }
out:
PRIV_UNLOCK(priv);
break;
@@ -3036,7 +3125,7 @@
ifp->if_capabilities |= IFCAP_LINKSTATE | IFCAP_JUMBO_MTU;
ifp->if_capabilities |= IFCAP_LRO;
ifp->if_capabilities |= IFCAP_TSO | IFCAP_VLAN_HWTSO;
- ifp->if_capabilities |= IFCAP_HWSTATS;
+ ifp->if_capabilities |= IFCAP_HWSTATS | IFCAP_HWRXTSTMP;
/* set TSO limits so that we don't have to drop TX packets */
ifp->if_hw_tsomax = MLX5E_MAX_TX_PAYLOAD_SIZE - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN);
@@ -3185,6 +3274,9 @@
mlx5e_update_stats(priv);
mtx_unlock(&priv->async_events_mtx);
+ callout_init(&priv->tstmp_clbr, CALLOUT_DIRECT);
+ mlx5e_reset_calibration_callout(priv);
+
return (priv);
err_dealloc_transport_domain:
@@ -3229,6 +3321,8 @@
/* stop watchdog timer */
callout_drain(&priv->watchdog);
+ callout_drain(&priv->tstmp_clbr);
+
if (priv->vlan_attach != NULL)
EVENTHANDLER_DEREGISTER(vlan_config, priv->vlan_attach);
if (priv->vlan_detach != NULL)
Index: sys/dev/mlx5/mlx5_en/mlx5_en_rx.c
===================================================================
--- sys/dev/mlx5/mlx5_en/mlx5_en_rx.c
+++ sys/dev/mlx5/mlx5_en/mlx5_en_rx.c
@@ -179,13 +179,37 @@
/* TODO: handle tcp checksum */
}
+#define PREC 10
+
+static uint64_t
+mlx5e_mbuf_tstmp(struct mlx5e_priv *priv, uint64_t hw_tstmp)
+{
+ struct mlx5e_clbr_point *cp;
+ uint64_t a1, a2, res;
+ u_int gen;
+
+ do {
+ cp = &priv->clbr_points[priv->clbr_curr];
+ gen = atomic_load_acq_int(&cp->clbr_gen);
+ a1 = (hw_tstmp - cp->clbr_hw_prev) >> PREC;
+ a2 = (cp->base_curr - cp->base_prev) >> PREC;
+ res = (a1 * a2) << PREC;
+ res /= (cp->clbr_hw_curr - cp->clbr_hw_prev) >> PREC;
+ res += cp->base_prev;
+ atomic_thread_fence_acq();
+ } while (gen == 0 || gen != cp->clbr_gen);
+ return (res);
+}
+
static inline void
mlx5e_build_rx_mbuf(struct mlx5_cqe64 *cqe,
struct mlx5e_rq *rq, struct mbuf *mb,
u32 cqe_bcnt)
{
struct ifnet *ifp = rq->ifp;
+ struct mlx5e_channel *c;
int lro_num_seg; /* HW LRO session aggregated packets counter */
+ uint64_t tstmp;
lro_num_seg = be32_to_cpu(cqe->srqn) >> 24;
if (lro_num_seg > 1) {
@@ -250,6 +274,21 @@
mb->m_pkthdr.ether_vtag = be16_to_cpu(cqe->vlan_info);
mb->m_flags |= M_VLANTAG;
}
+
+ c = container_of(rq, struct mlx5e_channel, rq);
+ if (c->priv->clbr_done >= 2) {
+ tstmp = mlx5e_mbuf_tstmp(c->priv, be64_to_cpu(cqe->timestamp));
+ if ((tstmp & MLX5_CQE_TSTMP_PTP) != 0) {
+ /*
+ * Timestamp was taken on the packet entrance,
+ * instead of the cqe generation.
+ */
+ tstmp &= ~MLX5_CQE_TSTMP_PTP;
+ mb->m_flags |= M_TSTMP_HPREC;
+ }
+ mb->m_pkthdr.rcv_tstmp = tstmp;
+ mb->m_flags |= M_TSTMP;
+ }
}
static inline void
Index: sys/net/if.h
===================================================================
--- sys/net/if.h
+++ sys/net/if.h
@@ -240,6 +240,7 @@
#define IFCAP_TXCSUM_IPV6 0x400000 /* can offload checksum on IPv6 TX */
#define IFCAP_HWSTATS 0x800000 /* manages counters internally */
#define IFCAP_TXRTLMT 0x1000000 /* hardware supports TX rate limiting */
+#define IFCAP_HWRXTSTMP 0x2000000 /* hardware rx timestamping */
#define IFCAP_HWCSUM_IPV6 (IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6)
Index: sys/netinet/ip_input.c
===================================================================
--- sys/netinet/ip_input.c
+++ sys/netinet/ip_input.c
@@ -1143,40 +1143,96 @@
ip_savecontrol(struct inpcb *inp, struct mbuf **mp, struct ip *ip,
struct mbuf *m)
{
+ bool stamped;
+ stamped = false;
if ((inp->inp_socket->so_options & SO_BINTIME) ||
CHECK_SO_CT(inp->inp_socket, SO_TS_BINTIME)) {
- struct bintime bt;
-
- bintime(&bt);
+ struct bintime boottimebin, bt;
+ struct timespec ts1;
+
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP)) {
+ mbuf_tstmp2timespec(m, &ts1);
+ timespec2bintime(&ts1, &bt);
+ getboottimebin(&boottimebin);
+ bintime_add(&bt, &boottimebin);
+ } else {
+ bintime(&bt);
+ }
*mp = sbcreatecontrol((caddr_t)&bt, sizeof(bt),
SCM_BINTIME, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
mp = &(*mp)->m_next;
+ stamped = true;
+ }
}
if (CHECK_SO_CT(inp->inp_socket, SO_TS_REALTIME_MICRO)) {
+ struct bintime boottimebin, bt1;
+ struct timespec ts1;;
struct timeval tv;
- microtime(&tv);
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP)) {
+ mbuf_tstmp2timespec(m, &ts1);
+ timespec2bintime(&ts1, &bt1);
+ getboottimebin(&boottimebin);
+ bintime_add(&bt1, &boottimebin);
+ bintime2timeval(&bt1, &tv);
+ } else {
+ microtime(&tv);
+ }
*mp = sbcreatecontrol((caddr_t)&tv, sizeof(tv),
SCM_TIMESTAMP, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
mp = &(*mp)->m_next;
+ stamped = true;
+ }
} else if (CHECK_SO_CT(inp->inp_socket, SO_TS_REALTIME)) {
- struct timespec ts;
-
- nanotime(&ts);
+ struct bintime boottimebin;
+ struct timespec ts, ts1;
+
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP)) {
+ mbuf_tstmp2timespec(m, &ts);
+ getboottimebin(&boottimebin);
+ bintime2timespec(&boottimebin, &ts1);
+ timespecadd(&ts, &ts1);
+ } else {
+ nanotime(&ts);
+ }
*mp = sbcreatecontrol((caddr_t)&ts, sizeof(ts),
SCM_REALTIME, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
mp = &(*mp)->m_next;
+ stamped = true;
+ }
} else if (CHECK_SO_CT(inp->inp_socket, SO_TS_MONOTONIC)) {
struct timespec ts;
- nanouptime(&ts);
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP))
+ mbuf_tstmp2timespec(m, &ts);
+ else
+ nanouptime(&ts);
*mp = sbcreatecontrol((caddr_t)&ts, sizeof(ts),
SCM_MONOTONIC, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
+ mp = &(*mp)->m_next;
+ stamped = true;
+ }
+ }
+ if (stamped && (m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP)) {
+ struct sock_timestamp_info sti;
+
+ bzero(&sti, sizeof(sti));
+ sti.st_info_flags = ST_INFO_HW;
+ if ((m->m_flags & M_TSTMP_HPREC) != 0)
+ sti.st_info_flags |= ST_INFO_HW_HPREC;
+ *mp = sbcreatecontrol((caddr_t)&sti, sizeof(sti), SCM_TIME_INFO,
+ SOL_SOCKET);
+ if (*mp != NULL)
mp = &(*mp)->m_next;
}
if (inp->inp_flags & INP_RECVDSTADDR) {
Index: sys/netinet6/ip6_input.c
===================================================================
--- sys/netinet6/ip6_input.c
+++ sys/netinet6/ip6_input.c
@@ -1221,43 +1221,97 @@
struct bintime bt;
struct timespec ts;
} t;
+ struct bintime boottimebin, bt1;
+ struct timespec ts1;
+ bool stamped;
+ stamped = false;
switch (inp->inp_socket->so_ts_clock) {
case SO_TS_REALTIME_MICRO:
- microtime(&t.tv);
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP)) {
+ mbuf_tstmp2timespec(m, &ts1);
+ timespec2bintime(&ts1, &bt1);
+ getboottimebin(&boottimebin);
+ bintime_add(&bt1, &boottimebin);
+ bintime2timeval(&bt1, &t.tv);
+ } else {
+ microtime(&t.tv);
+ }
*mp = sbcreatecontrol((caddr_t) &t.tv, sizeof(t.tv),
SCM_TIMESTAMP, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
mp = &(*mp)->m_next;
+ stamped = true;
+ }
break;
case SO_TS_BINTIME:
- bintime(&t.bt);
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP)) {
+ mbuf_tstmp2timespec(m, &ts1);
+ timespec2bintime(&ts1, &t.bt);
+ getboottimebin(&boottimebin);
+ bintime_add(&t.bt, &boottimebin);
+ } else {
+ bintime(&t.bt);
+ }
*mp = sbcreatecontrol((caddr_t)&t.bt, sizeof(t.bt),
SCM_BINTIME, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
mp = &(*mp)->m_next;
+ stamped = true;
+ }
break;
case SO_TS_REALTIME:
- nanotime(&t.ts);
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP)) {
+ mbuf_tstmp2timespec(m, &t.ts);
+ getboottimebin(&boottimebin);
+ bintime2timespec(&boottimebin, &ts1);
+ timespecadd(&t.ts, &ts1);
+ } else {
+ nanotime(&t.ts);
+ }
*mp = sbcreatecontrol((caddr_t)&t.ts, sizeof(t.ts),
SCM_REALTIME, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
mp = &(*mp)->m_next;
+ stamped = true;
+ }
break;
case SO_TS_MONOTONIC:
- nanouptime(&t.ts);
+ if ((m->m_flags & (M_PKTHDR | M_TSTMP)) == (M_PKTHDR |
+ M_TSTMP))
+ mbuf_tstmp2timespec(m, &t.ts);
+ else
+ nanouptime(&t.ts);
*mp = sbcreatecontrol((caddr_t)&t.ts, sizeof(t.ts),
SCM_MONOTONIC, SOL_SOCKET);
- if (*mp)
+ if (*mp != NULL) {
mp = &(*mp)->m_next;
+ stamped = true;
+ }
break;
default:
panic("unknown (corrupted) so_ts_clock");
}
+ if (stamped && (m->m_flags & (M_PKTHDR | M_TSTMP)) ==
+ (M_PKTHDR | M_TSTMP)) {
+ struct sock_timestamp_info sti;
+
+ bzero(&sti, sizeof(sti));
+ sti.st_info_flags = ST_INFO_HW;
+ if ((m->m_flags & M_TSTMP_HPREC) != 0)
+ sti.st_info_flags |= ST_INFO_HW_HPREC;
+ *mp = sbcreatecontrol((caddr_t)&sti, sizeof(sti),
+ SCM_TIME_INFO, SOL_SOCKET);
+ if (*mp != NULL)
+ mp = &(*mp)->m_next;
+ }
}
#endif
Index: sys/sys/mbuf.h
===================================================================
--- sys/sys/mbuf.h
+++ sys/sys/mbuf.h
@@ -154,14 +154,20 @@
/* Layer crossing persistent information. */
uint32_t flowid; /* packet's 4-tuple system */
- uint64_t csum_flags; /* checksum and offload features */
+ uint32_t csum_flags; /* checksum and offload features */
uint16_t fibnum; /* this packet should use this fib */
uint8_t cosqos; /* class/quality of service */
uint8_t rsstype; /* hash type */
- uint8_t l2hlen; /* layer 2 header length */
- uint8_t l3hlen; /* layer 3 header length */
- uint8_t l4hlen; /* layer 4 header length */
- uint8_t l5hlen; /* layer 5 header length */
+ union {
+ uint64_t rcv_tstmp; /* timestamp in ns */
+ struct {
+ uint8_t l2hlen; /* layer 2 hdr len */
+ uint8_t l3hlen; /* layer 3 hdr len */
+ uint8_t l4hlen; /* layer 4 hdr len */
+ uint8_t l5hlen; /* layer 5 hdr len */
+ uint32_t spare;
+ };
+ };
union {
uint8_t eight[8];
uint16_t sixteen[4];
@@ -293,6 +299,10 @@
#define M_VLANTAG 0x00000080 /* ether_vtag is valid */
#define M_UNUSED_8 0x00000100 /* --available-- */
#define M_NOFREE 0x00000200 /* do not free mbuf, embedded in cluster */
+#define M_TSTMP 0x00000400 /* rcv_tstmp field is valid */
+#define M_TSTMP_HPREC 0x00000800 /* rcv_tstmp is high-prec, typically
+ hw-stamped on entrance (useful for
+ IEEE 1588 and 802.1AS) */
#define M_PROTO1 0x00001000 /* protocol-specific */
#define M_PROTO2 0x00002000 /* protocol-specific */
@@ -320,15 +330,15 @@
* Flags preserved when copying m_pkthdr.
*/
#define M_COPYFLAGS \
- (M_PKTHDR|M_EOR|M_RDONLY|M_BCAST|M_MCAST|M_PROMISC|M_VLANTAG| \
- M_PROTOFLAGS)
+ (M_PKTHDR|M_EOR|M_RDONLY|M_BCAST|M_MCAST|M_PROMISC|M_VLANTAG|M_TSTMP| \
+ M_TSTMP_HPREC|M_PROTOFLAGS)
/*
* Mbuf flag description for use with printf(9) %b identifier.
*/
#define M_FLAG_BITS \
"\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_BCAST\6M_MCAST" \
- "\7M_PROMISC\10M_VLANTAG"
+ "\7M_PROMISC\10M_VLANTAG\13M_TSTMP\14M_TSTMP_HPREC"
#define M_FLAG_PROTOBITS \
"\15M_PROTO1\16M_PROTO2\17M_PROTO3\20M_PROTO4\21M_PROTO5" \
"\22M_PROTO6\23M_PROTO7\24M_PROTO8\25M_PROTO9\26M_PROTO10" \
@@ -1348,5 +1358,17 @@
mq_src->mq_len = 0;
}
+#ifdef _SYS_TIMESPEC_H_
+static inline void
+mbuf_tstmp2timespec(struct mbuf *m, struct timespec *ts)
+{
+
+ MPASS((m->m_flags & M_PKTHDR) != 0);
+ MPASS((m->m_flags & M_TSTMP) != 0);
+ ts->tv_sec = m->m_pkthdr.rcv_tstmp / 1000000000;
+ ts->tv_nsec = m->m_pkthdr.rcv_tstmp % 1000000000;
+}
+#endif
+
#endif /* _KERNEL */
#endif /* !_SYS_MBUF_H_ */
Index: sys/sys/socket.h
===================================================================
--- sys/sys/socket.h
+++ sys/sys/socket.h
@@ -563,6 +563,17 @@
#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */
#define SCM_REALTIME 0x05 /* timestamp (struct timespec) */
#define SCM_MONOTONIC 0x06 /* timestamp (struct timespec) */
+#define SCM_TIME_INFO 0x07 /* timestamp info */
+
+struct sock_timestamp_info {
+ __uint32_t st_info_flags;
+ __uint32_t st_info_pad0;
+ __uint64_t st_info_rsv[7];
+};
+
+#define ST_INFO_HW 0x0001 /* SCM_TIMESTAMP was hw */
+#define ST_INFO_HW_HPREC 0x0002 /* SCM_TIMESTAMP was hw-assisted
+ on entrance */
#endif
#if __BSD_VISIBLE

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