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-rw-r--r--Documentation/networking/rds.txt9
-rw-r--r--drivers/net/ethernet/emulex/benet/be.h1
-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c2
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c2
-rw-r--r--drivers/net/phy/Kconfig4
-rw-r--r--drivers/net/phy/broadcom.c14
-rw-r--r--drivers/net/usb/usbnet.c4
-rw-r--r--include/linux/brcmphy.h1
-rw-r--r--net/ipv4/fou.c4
-rw-r--r--net/rds/connection.c3
-rw-r--r--net/rds/rds.h1
-rw-r--r--net/rds/send.c33
-rw-r--r--net/sched/sch_netem.c3
13 files changed, 64 insertions, 17 deletions
diff --git a/Documentation/networking/rds.txt b/Documentation/networking/rds.txt
index c67077cbeb80..e1a3d59bbe0f 100644
--- a/Documentation/networking/rds.txt
+++ b/Documentation/networking/rds.txt
@@ -62,11 +62,10 @@ Socket Interface
================
AF_RDS, PF_RDS, SOL_RDS
- These constants haven't been assigned yet, because RDS isn't in
- mainline yet. Currently, the kernel module assigns some constant
- and publishes it to user space through two sysctl files
- /proc/sys/net/rds/pf_rds
- /proc/sys/net/rds/sol_rds
+ AF_RDS and PF_RDS are the domain type to be used with socket(2)
+ to create RDS sockets. SOL_RDS is the socket-level to be used
+ with setsockopt(2) and getsockopt(2) for RDS specific socket
+ options.
fd = socket(PF_RDS, SOCK_SEQPACKET, 0);
This creates a new, unbound RDS socket.
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 27b9fe99a9bd..204ec43438c4 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -97,6 +97,7 @@
#define BE_NAPI_WEIGHT 64
#define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
#define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
+#define MAX_NUM_POST_ERX_DB 255u
#define MAX_VFS 30 /* Max VFs supported by BE3 FW */
#define FW_VER_LEN 32
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index e6b790f0d9dc..ad2b5094a498 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2032,7 +2032,7 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp, u32 frags_needed)
if (rxo->rx_post_starved)
rxo->rx_post_starved = false;
do {
- notify = min(256u, posted);
+ notify = min(MAX_NUM_POST_ERX_DB, posted);
be_rxq_notify(adapter, rxq->id, notify);
posted -= notify;
} while (posted);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index e97074cd5800..1cacea9765b4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -91,7 +91,7 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *
STMMAC_RESOURCE_NAME);
if (IS_ERR(dwmac->stmmac_rst)) {
dev_info(dev, "Could not get reset control!\n");
- return -EINVAL;
+ return PTR_ERR(dwmac->stmmac_rst);
}
dwmac->interface = of_get_phy_mode(np);
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 16adbc481772..8fadaa14b9f0 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -68,8 +68,8 @@ config SMSC_PHY
config BROADCOM_PHY
tristate "Drivers for Broadcom PHYs"
---help---
- Currently supports the BCM5411, BCM5421, BCM5461, BCM5464, BCM5481
- and BCM5482 PHYs.
+ Currently supports the BCM5411, BCM5421, BCM5461, BCM54616S, BCM5464,
+ BCM5481 and BCM5482 PHYs.
config BCM63XX_PHY
tristate "Drivers for Broadcom 63xx SOCs internal PHY"
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index a52afb26421b..9c71295f2fef 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -549,6 +549,19 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm54xx_config_intr,
.driver = { .owner = THIS_MODULE },
}, {
+ .phy_id = PHY_ID_BCM54616S,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Broadcom BCM54616S",
+ .features = PHY_GBIT_FEATURES |
+ SUPPORTED_Pause | SUPPORTED_Asym_Pause,
+ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+ .config_init = bcm54xx_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = bcm54xx_ack_interrupt,
+ .config_intr = bcm54xx_config_intr,
+ .driver = { .owner = THIS_MODULE },
+}, {
.phy_id = PHY_ID_BCM5464,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM5464",
@@ -660,6 +673,7 @@ static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
{ PHY_ID_BCM5411, 0xfffffff0 },
{ PHY_ID_BCM5421, 0xfffffff0 },
{ PHY_ID_BCM5461, 0xfffffff0 },
+ { PHY_ID_BCM54616S, 0xfffffff0 },
{ PHY_ID_BCM5464, 0xfffffff0 },
{ PHY_ID_BCM5482, 0xfffffff0 },
{ PHY_ID_BCM5482, 0xfffffff0 },
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 777757ae1973..733f4feb2ef3 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1072,7 +1072,7 @@ static void __handle_set_rx_mode(struct usbnet *dev)
* especially now that control transfers can be queued.
*/
static void
-kevent (struct work_struct *work)
+usbnet_deferred_kevent (struct work_struct *work)
{
struct usbnet *dev =
container_of(work, struct usbnet, kevent);
@@ -1626,7 +1626,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
skb_queue_head_init(&dev->rxq_pause);
dev->bh.func = usbnet_bh;
dev->bh.data = (unsigned long) dev;
- INIT_WORK (&dev->kevent, kevent);
+ INIT_WORK (&dev->kevent, usbnet_deferred_kevent);
init_usb_anchor(&dev->deferred);
dev->delay.function = usbnet_bh;
dev->delay.data = (unsigned long) dev;
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 7ccd928cc1f2..1c9920b38fa1 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -11,6 +11,7 @@
#define PHY_ID_BCM5421 0x002060e0
#define PHY_ID_BCM5464 0x002060b0
#define PHY_ID_BCM5461 0x002060c0
+#define PHY_ID_BCM54616S 0x03625d10
#define PHY_ID_BCM57780 0x03625d90
#define PHY_ID_BCM7250 0xae025280
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index ff069f6597ac..335e75207284 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -771,12 +771,12 @@ EXPORT_SYMBOL(gue_build_header);
#ifdef CONFIG_NET_FOU_IP_TUNNELS
-static const struct ip_tunnel_encap_ops __read_mostly fou_iptun_ops = {
+static const struct ip_tunnel_encap_ops fou_iptun_ops = {
.encap_hlen = fou_encap_hlen,
.build_header = fou_build_header,
};
-static const struct ip_tunnel_encap_ops __read_mostly gue_iptun_ops = {
+static const struct ip_tunnel_encap_ops gue_iptun_ops = {
.encap_hlen = gue_encap_hlen,
.build_header = gue_build_header,
};
diff --git a/net/rds/connection.c b/net/rds/connection.c
index 378c3a6acf84..14f041398ca1 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -130,7 +130,7 @@ static struct rds_connection *__rds_conn_create(__be32 laddr, __be32 faddr,
rcu_read_lock();
conn = rds_conn_lookup(head, laddr, faddr, trans);
if (conn && conn->c_loopback && conn->c_trans != &rds_loop_transport &&
- !is_outgoing) {
+ laddr == faddr && !is_outgoing) {
/* This is a looped back IB connection, and we're
* called by the code handling the incoming connect.
* We need a second connection object into which we
@@ -193,6 +193,7 @@ static struct rds_connection *__rds_conn_create(__be32 laddr, __be32 faddr,
}
atomic_set(&conn->c_state, RDS_CONN_DOWN);
+ conn->c_send_gen = 0;
conn->c_reconnect_jiffies = 0;
INIT_DELAYED_WORK(&conn->c_send_w, rds_send_worker);
INIT_DELAYED_WORK(&conn->c_recv_w, rds_recv_worker);
diff --git a/net/rds/rds.h b/net/rds/rds.h
index c2a5eef41343..02d8fd5b40c0 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -110,6 +110,7 @@ struct rds_connection {
void *c_transport_data;
atomic_t c_state;
+ unsigned long c_send_gen;
unsigned long c_flags;
unsigned long c_reconnect_jiffies;
struct delayed_work c_send_w;
diff --git a/net/rds/send.c b/net/rds/send.c
index 42f65d4305c8..49f77efd82b9 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -140,8 +140,11 @@ int rds_send_xmit(struct rds_connection *conn)
struct scatterlist *sg;
int ret = 0;
LIST_HEAD(to_be_dropped);
+ int batch_count;
+ unsigned long send_gen = 0;
restart:
+ batch_count = 0;
/*
* sendmsg calls here after having queued its message on the send
@@ -157,6 +160,17 @@ restart:
}
/*
+ * we record the send generation after doing the xmit acquire.
+ * if someone else manages to jump in and do some work, we'll use
+ * this to avoid a goto restart farther down.
+ *
+ * The acquire_in_xmit() check above ensures that only one
+ * caller can increment c_send_gen at any time.
+ */
+ conn->c_send_gen++;
+ send_gen = conn->c_send_gen;
+
+ /*
* rds_conn_shutdown() sets the conn state and then tests RDS_IN_XMIT,
* we do the opposite to avoid races.
*/
@@ -202,6 +216,16 @@ restart:
if (!rm) {
unsigned int len;
+ batch_count++;
+
+ /* we want to process as big a batch as we can, but
+ * we also want to avoid softlockups. If we've been
+ * through a lot of messages, lets back off and see
+ * if anyone else jumps in
+ */
+ if (batch_count >= 1024)
+ goto over_batch;
+
spin_lock_irqsave(&conn->c_lock, flags);
if (!list_empty(&conn->c_send_queue)) {
@@ -357,9 +381,9 @@ restart:
}
}
+over_batch:
if (conn->c_trans->xmit_complete)
conn->c_trans->xmit_complete(conn);
-
release_in_xmit(conn);
/* Nuke any messages we decided not to retransmit. */
@@ -380,10 +404,15 @@ restart:
* If the transport cannot continue (i.e ret != 0), then it must
* call us when more room is available, such as from the tx
* completion handler.
+ *
+ * We have an extra generation check here so that if someone manages
+ * to jump in after our release_in_xmit, we'll see that they have done
+ * some work and we will skip our goto
*/
if (ret == 0) {
smp_mb();
- if (!list_empty(&conn->c_send_queue)) {
+ if (!list_empty(&conn->c_send_queue) &&
+ send_gen == conn->c_send_gen) {
rds_stats_inc(s_send_lock_queue_raced);
goto restart;
}
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 179f1c8c0d8b..956ead2cab9a 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -560,8 +560,8 @@ static struct sk_buff *netem_dequeue(struct Qdisc *sch)
tfifo_dequeue:
skb = __skb_dequeue(&sch->q);
if (skb) {
-deliver:
qdisc_qstats_backlog_dec(sch, skb);
+deliver:
qdisc_unthrottled(sch);
qdisc_bstats_update(sch, skb);
return skb;
@@ -578,6 +578,7 @@ deliver:
rb_erase(p, &q->t_root);
sch->q.qlen--;
+ qdisc_qstats_backlog_dec(sch, skb);
skb->next = NULL;
skb->prev = NULL;
skb->tstamp = netem_skb_cb(skb)->tstamp_save;
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