summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/sun
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@s-opensource.com>2017-03-06 10:49:34 +0100
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-03-06 10:49:34 +0100
commit700ea5e0e0dd70420a04e703ff264cc133834cba (patch)
treed217b0d90d014953ea10ab7d88809660d2da8a64 /drivers/net/ethernet/sun
parent[media] media: ti-vpe: vpe: allow use of user specified stride (diff)
parentLinux 4.11-rc1 (diff)
downloadlinux-700ea5e0e0dd70420a04e703ff264cc133834cba.tar.xz
linux-700ea5e0e0dd70420a04e703ff264cc133834cba.zip
Merge tag 'v4.11-rc1' into patchwork
Linux 4.11-rc1 * tag 'v4.11-rc1': (10730 commits) Linux 4.11-rc1 strparser: destroy workqueue on module exit Documentation/sphinx: fix primary_domain configuration docs: Fix htmldocs build failure doc/ko_KR/memory-barriers: Update control-dependencies section pcieaer doc: update the link Documentation: Update path to sysrq.txt sfc: fix IPID endianness in TSOv2 sfc: avoid max() in array size rds: remove unnecessary returned value check rxrpc: Fix potential NULL-pointer exception nfp: correct DMA direction in XDP DMA sync nfp: don't tell FW about the reserved buffer space net: ethernet: bgmac: mac address change bug net: ethernet: bgmac: init sequence bug xen-netback: don't vfree() queues under spinlock xen-netback: keep a local pointer for vif in backend_disconnect() netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups netfilter: nf_conntrack_sip: fix wrong memory initialisation ...
Diffstat (limited to 'drivers/net/ethernet/sun')
-rw-r--r--drivers/net/ethernet/sun/Kconfig8
-rw-r--r--drivers/net/ethernet/sun/ldmvsw.c19
-rw-r--r--drivers/net/ethernet/sun/niu.c8
-rw-r--r--drivers/net/ethernet/sun/sungem.c2
-rw-r--r--drivers/net/ethernet/sun/sunvnet.c14
-rw-r--r--drivers/net/ethernet/sun/sunvnet_common.c119
6 files changed, 77 insertions, 93 deletions
diff --git a/drivers/net/ethernet/sun/Kconfig b/drivers/net/ethernet/sun/Kconfig
index a4b40e3015e5..b2caf5132bd2 100644
--- a/drivers/net/ethernet/sun/Kconfig
+++ b/drivers/net/ethernet/sun/Kconfig
@@ -70,19 +70,23 @@ config CASSINI
<http://docs.oracle.com/cd/E19113-01/giga.ether.pci/817-4341-10/817-4341-10.pdf>.
config SUNVNET_COMMON
- bool
+ tristate "Common routines to support Sun Virtual Networking"
depends on SUN_LDOMS
- default y if SUN_LDOMS
+ default m
config SUNVNET
tristate "Sun Virtual Network support"
+ default m
depends on SUN_LDOMS
+ depends on SUNVNET_COMMON
---help---
Support for virtual network devices under Sun Logical Domains.
config LDMVSW
tristate "Sun4v LDoms Virtual Switch support"
+ default m
depends on SUN_LDOMS
+ depends on SUNVNET_COMMON
---help---
Support for virtual switch devices under Sun4v Logical Domains.
This driver adds a network interface for every vsw-port node
diff --git a/drivers/net/ethernet/sun/ldmvsw.c b/drivers/net/ethernet/sun/ldmvsw.c
index 335b87660638..89952deae47f 100644
--- a/drivers/net/ethernet/sun/ldmvsw.c
+++ b/drivers/net/ethernet/sun/ldmvsw.c
@@ -41,11 +41,11 @@
static u8 vsw_port_hwaddr[ETH_ALEN] = {0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
#define DRV_MODULE_NAME "ldmvsw"
-#define DRV_MODULE_VERSION "1.0"
-#define DRV_MODULE_RELDATE "Jan 15, 2016"
+#define DRV_MODULE_VERSION "1.1"
+#define DRV_MODULE_RELDATE "February 3, 2017"
static char version[] =
- DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+ DRV_MODULE_NAME " " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
MODULE_AUTHOR("Oracle");
MODULE_DESCRIPTION("Sun4v LDOM Virtual Switch Driver");
MODULE_LICENSE("GPL");
@@ -234,8 +234,7 @@ static struct net_device *vsw_alloc_netdev(u8 hwaddr[],
dev->ethtool_ops = &vsw_ethtool_ops;
dev->watchdog_timeo = VSW_TX_TIMEOUT;
- dev->hw_features = NETIF_F_TSO | NETIF_F_GSO | NETIF_F_GSO_SOFTWARE |
- NETIF_F_HW_CSUM | NETIF_F_SG;
+ dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG;
dev->features = dev->hw_features;
/* MTU range: 68 - 65535 */
@@ -259,11 +258,6 @@ static struct vio_driver_ops vsw_vio_ops = {
.handshake_complete = sunvnet_handshake_complete_common,
};
-static void print_version(void)
-{
- printk_once(KERN_INFO "%s", version);
-}
-
static const char *remote_macaddr_prop = "remote-mac-address";
static const char *id_prop = "id";
@@ -279,8 +273,6 @@ static int vsw_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
const u64 *port_id;
u64 handle;
- print_version();
-
hp = mdesc_grab();
rmac = mdesc_get_property(hp, vdev->mp, remote_macaddr_prop, &len);
@@ -327,7 +319,7 @@ static int vsw_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
port->vp = vp;
port->dev = dev;
port->switch_port = 1;
- port->tso = true;
+ port->tso = false; /* no tso in vsw, misbehaves in bridge */
port->tsolen = 0;
/* Mark the port as belonging to ldmvsw which directs the
@@ -457,6 +449,7 @@ static struct vio_driver vsw_port_driver = {
static int __init vsw_init(void)
{
+ pr_info("%s\n", version);
return vio_register_driver(&vsw_port_driver);
}
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index f90d1af6d390..57978056b336 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -3786,7 +3786,7 @@ static int niu_poll(struct napi_struct *napi, int budget)
work_done = niu_poll_core(np, lp, budget);
if (work_done < budget) {
- napi_complete(napi);
+ napi_complete_done(napi, work_done);
niu_ldg_rearm(np, lp, 1);
}
return work_done;
@@ -6294,8 +6294,8 @@ no_rings:
stats->tx_errors = errors;
}
-static struct rtnl_link_stats64 *niu_get_stats(struct net_device *dev,
- struct rtnl_link_stats64 *stats)
+static void niu_get_stats(struct net_device *dev,
+ struct rtnl_link_stats64 *stats)
{
struct niu *np = netdev_priv(dev);
@@ -6303,8 +6303,6 @@ static struct rtnl_link_stats64 *niu_get_stats(struct net_device *dev,
niu_get_rx_stats(np, stats);
niu_get_tx_stats(np, stats);
}
-
- return stats;
}
static void niu_load_hash_xmac(struct niu *np, u16 *hash)
diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c
index d277e4107976..5c5952e782cd 100644
--- a/drivers/net/ethernet/sun/sungem.c
+++ b/drivers/net/ethernet/sun/sungem.c
@@ -922,7 +922,7 @@ static int gem_poll(struct napi_struct *napi, int budget)
gp->status = readl(gp->regs + GREG_STAT);
} while (gp->status & GREG_STAT_NAPI);
- napi_complete(napi);
+ napi_complete_done(napi, work_done);
gem_enable_ints(gp);
return work_done;
diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
index 5356a7074796..4cc2571f71c6 100644
--- a/drivers/net/ethernet/sun/sunvnet.c
+++ b/drivers/net/ethernet/sun/sunvnet.c
@@ -38,11 +38,11 @@
#define VNET_TX_TIMEOUT (5 * HZ)
#define DRV_MODULE_NAME "sunvnet"
-#define DRV_MODULE_VERSION "1.0"
-#define DRV_MODULE_RELDATE "June 25, 2007"
+#define DRV_MODULE_VERSION "2.0"
+#define DRV_MODULE_RELDATE "February 3, 2017"
static char version[] =
- DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+ DRV_MODULE_NAME " " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_DESCRIPTION("Sun LDOM virtual network driver");
MODULE_LICENSE("GPL");
@@ -303,11 +303,6 @@ static struct vio_driver_ops vnet_vio_ops = {
.handshake_complete = sunvnet_handshake_complete_common,
};
-static void print_version(void)
-{
- printk_once(KERN_INFO "%s", version);
-}
-
const char *remote_macaddr_prop = "remote-mac-address";
static int vnet_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
@@ -319,8 +314,6 @@ static int vnet_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
const u64 *rmac;
int len, i, err, switch_port;
- print_version();
-
hp = mdesc_grab();
vp = vnet_find_parent(hp, vdev->mp, vdev);
@@ -446,6 +439,7 @@ static struct vio_driver vnet_port_driver = {
static int __init vnet_init(void)
{
+ pr_info("%s\n", version);
return vio_register_driver(&vnet_port_driver);
}
diff --git a/drivers/net/ethernet/sun/sunvnet_common.c b/drivers/net/ethernet/sun/sunvnet_common.c
index 8878b75d68b4..fa2d11ca9b81 100644
--- a/drivers/net/ethernet/sun/sunvnet_common.c
+++ b/drivers/net/ethernet/sun/sunvnet_common.c
@@ -37,6 +37,11 @@
*/
#define VNET_MAX_RETRIES 10
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
+MODULE_DESCRIPTION("Sun LDOM virtual network support library");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1.1");
+
static int __vnet_tx_trigger(struct vnet_port *port, u32 start);
static void vnet_port_reset(struct vnet_port *port);
@@ -181,6 +186,7 @@ static int handle_attr_info(struct vio_driver_state *vio,
} else {
pkt->cflags &= ~VNET_LSO_IPV4_CAPAB;
pkt->ipv4_lso_maxlen = 0;
+ port->tsolen = 0;
}
/* for version >= 1.6, ACK packet mode we support */
@@ -714,12 +720,8 @@ static void maybe_tx_wakeup(struct vnet_port *port)
txq = netdev_get_tx_queue(VNET_PORT_TO_NET_DEVICE(port),
port->q_index);
__netif_tx_lock(txq, smp_processor_id());
- if (likely(netif_tx_queue_stopped(txq))) {
- struct vio_dring_state *dr;
-
- dr = &port->vio.drings[VIO_DRIVER_TX_RING];
+ if (likely(netif_tx_queue_stopped(txq)))
netif_tx_wake_queue(txq);
- }
__netif_tx_unlock(txq);
}
@@ -737,41 +739,37 @@ static int vnet_event_napi(struct vnet_port *port, int budget)
struct vio_driver_state *vio = &port->vio;
int tx_wakeup, err;
int npkts = 0;
- int event = (port->rx_event & LDC_EVENT_RESET);
-
-ldc_ctrl:
- if (unlikely(event == LDC_EVENT_RESET ||
- event == LDC_EVENT_UP)) {
- vio_link_state_change(vio, event);
-
- if (event == LDC_EVENT_RESET) {
- vnet_port_reset(port);
- vio_port_up(vio);
-
- /* If the device is running but its tx queue was
- * stopped (due to flow control), restart it.
- * This is necessary since vnet_port_reset()
- * clears the tx drings and thus we may never get
- * back a VIO_TYPE_DATA ACK packet - which is
- * the normal mechanism to restart the tx queue.
- */
- if (netif_running(dev))
- maybe_tx_wakeup(port);
- }
+
+ /* we don't expect any other bits */
+ BUG_ON(port->rx_event & ~(LDC_EVENT_DATA_READY |
+ LDC_EVENT_RESET |
+ LDC_EVENT_UP));
+
+ /* RESET takes precedent over any other event */
+ if (port->rx_event & LDC_EVENT_RESET) {
+ vio_link_state_change(vio, LDC_EVENT_RESET);
+ vnet_port_reset(port);
+ vio_port_up(vio);
+
+ /* If the device is running but its tx queue was
+ * stopped (due to flow control), restart it.
+ * This is necessary since vnet_port_reset()
+ * clears the tx drings and thus we may never get
+ * back a VIO_TYPE_DATA ACK packet - which is
+ * the normal mechanism to restart the tx queue.
+ */
+ if (netif_running(dev))
+ maybe_tx_wakeup(port);
+
port->rx_event = 0;
return 0;
}
- /* We may have multiple LDC events in rx_event. Unroll send_events() */
- event = (port->rx_event & LDC_EVENT_UP);
- port->rx_event &= ~(LDC_EVENT_RESET | LDC_EVENT_UP);
- if (event == LDC_EVENT_UP)
- goto ldc_ctrl;
- event = port->rx_event;
- if (!(event & LDC_EVENT_DATA_READY))
- return 0;
- /* we dont expect any other bits than RESET, UP, DATA_READY */
- BUG_ON(event != LDC_EVENT_DATA_READY);
+ if (port->rx_event & LDC_EVENT_UP) {
+ vio_link_state_change(vio, LDC_EVENT_UP);
+ port->rx_event = 0;
+ return 0;
+ }
err = 0;
tx_wakeup = 0;
@@ -794,25 +792,25 @@ ldc_ctrl:
pkt->start_idx = vio_dring_next(dr,
port->napi_stop_idx);
pkt->end_idx = -1;
- goto napi_resume;
- }
- err = ldc_read(vio->lp, &msgbuf, sizeof(msgbuf));
- if (unlikely(err < 0)) {
- if (err == -ECONNRESET)
- vio_conn_reset(vio);
- break;
+ } else {
+ err = ldc_read(vio->lp, &msgbuf, sizeof(msgbuf));
+ if (unlikely(err < 0)) {
+ if (err == -ECONNRESET)
+ vio_conn_reset(vio);
+ break;
+ }
+ if (err == 0)
+ break;
+ viodbg(DATA, "TAG [%02x:%02x:%04x:%08x]\n",
+ msgbuf.tag.type,
+ msgbuf.tag.stype,
+ msgbuf.tag.stype_env,
+ msgbuf.tag.sid);
+ err = vio_validate_sid(vio, &msgbuf.tag);
+ if (err < 0)
+ break;
}
- if (err == 0)
- break;
- viodbg(DATA, "TAG [%02x:%02x:%04x:%08x]\n",
- msgbuf.tag.type,
- msgbuf.tag.stype,
- msgbuf.tag.stype_env,
- msgbuf.tag.sid);
- err = vio_validate_sid(vio, &msgbuf.tag);
- if (err < 0)
- break;
-napi_resume:
+
if (likely(msgbuf.tag.type == VIO_TYPE_DATA)) {
if (msgbuf.tag.stype == VIO_SUBTYPE_INFO) {
if (!sunvnet_port_is_up_common(port)) {
@@ -860,7 +858,7 @@ int sunvnet_poll_common(struct napi_struct *napi, int budget)
int processed = vnet_event_napi(port, budget);
if (processed < budget) {
- napi_complete(napi);
+ napi_complete_done(napi, processed);
port->rx_event &= ~LDC_EVENT_DATA_READY;
vio_set_intr(vio->vdev->rx_ino, HV_INTR_ENABLED);
}
@@ -1256,10 +1254,8 @@ int sunvnet_start_xmit_common(struct sk_buff *skb, struct net_device *dev,
rcu_read_lock();
port = vnet_tx_port(skb, dev);
- if (unlikely(!port)) {
- rcu_read_unlock();
+ if (unlikely(!port))
goto out_dropped;
- }
if (skb_is_gso(skb) && skb->len > port->tsolen) {
err = vnet_handle_offloads(port, skb, vnet_tx_port);
@@ -1284,7 +1280,6 @@ int sunvnet_start_xmit_common(struct sk_buff *skb, struct net_device *dev,
fl4.saddr = ip_hdr(skb)->saddr;
rt = ip_route_output_key(dev_net(dev), &fl4);
- rcu_read_unlock();
if (!IS_ERR(rt)) {
skb_dst_set(skb, &rt->dst);
icmp_send(skb, ICMP_DEST_UNREACH,
@@ -1426,6 +1421,7 @@ ldc_start_done:
dr->prod = (dr->prod + 1) & (VNET_TX_RING_SIZE - 1);
if (unlikely(vnet_tx_dring_avail(dr) < 1)) {
netif_tx_stop_queue(txq);
+ smp_rmb();
if (vnet_tx_dring_avail(dr) > VNET_TX_WAKEUP_THRESH(dr))
netif_tx_wake_queue(txq);
}
@@ -1443,8 +1439,7 @@ out_dropped:
jiffies + VNET_CLEAN_TIMEOUT);
else if (port)
del_timer(&port->clean_timer);
- if (port)
- rcu_read_unlock();
+ rcu_read_unlock();
if (skb)
dev_kfree_skb(skb);
vnet_free_skbs(freeskbs);
@@ -1641,7 +1636,7 @@ static void vnet_port_reset(struct vnet_port *port)
del_timer(&port->clean_timer);
sunvnet_port_free_tx_bufs_common(port);
port->rmtu = 0;
- port->tso = true;
+ port->tso = (port->vsw == 0); /* no tso in vsw, misbehaves in bridge */
port->tsolen = 0;
}