Commit 9ef8690b authored by Samuel Mendoza-Jonas's avatar Samuel Mendoza-Jonas Committed by David S. Miller

net/ncsi: Improve general state logging

The NCSI driver is mostly silent which becomes a headache when trying to
determine what has occurred on the NCSI connection. This adds additional
logging in a few key areas such as state transitions and calling out
certain errors more visibly.
Signed-off-by: default avatarSamuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a8a6f1e4
......@@ -73,6 +73,9 @@ static int ncsi_aen_handler_lsc(struct ncsi_dev_priv *ndp,
ncm->data[2] = data;
ncm->data[4] = ntohl(lsc->oem_status);
netdev_info(ndp->ndev.dev, "NCSI: LSC AEN - channel %u state %s\n",
nc->id, data & 0x1 ? "up" : "down");
chained = !list_empty(&nc->link);
state = nc->state;
spin_unlock_irqrestore(&nc->lock, flags);
......@@ -145,6 +148,8 @@ static int ncsi_aen_handler_hncdsc(struct ncsi_dev_priv *ndp,
ncm = &nc->modes[NCSI_MODE_LINK];
hncdsc = (struct ncsi_aen_hncdsc_pkt *)h;
ncm->data[3] = ntohl(hncdsc->status);
netdev_info(ndp->ndev.dev, "NCSI: HNCDSC AEN - channel %u state %s\n",
nc->id, ncm->data[3] & 0x3 ? "up" : "down");
if (!list_empty(&nc->link) ||
nc->state != NCSI_CHANNEL_ACTIVE) {
spin_unlock_irqrestore(&nc->lock, flags);
......@@ -212,10 +217,18 @@ int ncsi_aen_handler(struct ncsi_dev_priv *ndp, struct sk_buff *skb)
}
ret = ncsi_validate_aen_pkt(h, nah->payload);
if (ret)
if (ret) {
netdev_warn(ndp->ndev.dev,
"NCSI: 'bad' packet ignored for AEN type 0x%x\n",
h->type);
goto out;
}
ret = nah->handler(ndp, h);
if (ret)
netdev_err(ndp->ndev.dev,
"NCSI: Handler for AEN type 0x%x returned %d\n",
h->type, ret);
out:
consume_skb(skb);
return ret;
......
......@@ -229,6 +229,8 @@ static void ncsi_channel_monitor(unsigned long data)
case NCSI_CHANNEL_MONITOR_WAIT ... NCSI_CHANNEL_MONITOR_WAIT_MAX:
break;
default:
netdev_err(ndp->ndev.dev, "NCSI Channel %d timed out!\n",
nc->id);
if (!(ndp->flags & NCSI_DEV_HWA)) {
ncsi_report_link(ndp, true);
ndp->flags |= NCSI_DEV_RESHUFFLE;
......@@ -682,7 +684,7 @@ static int clear_one_vid(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc,
data = ncsi_get_filter(nc, NCSI_FILTER_VLAN, index);
if (!data) {
netdev_err(ndp->ndev.dev,
"ncsi: failed to retrieve filter %d\n", index);
"NCSI: failed to retrieve filter %d\n", index);
/* Set the VLAN id to 0 - this will still disable the entry in
* the filter table, but we won't know what it was.
*/
......@@ -692,7 +694,7 @@ static int clear_one_vid(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc,
}
netdev_printk(KERN_DEBUG, ndp->ndev.dev,
"ncsi: removed vlan tag %u at index %d\n",
"NCSI: removed vlan tag %u at index %d\n",
vid, index + 1);
ncsi_remove_filter(nc, NCSI_FILTER_VLAN, index);
......@@ -718,7 +720,7 @@ static int set_one_vid(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc,
if (index < 0) {
/* New tag to add */
netdev_printk(KERN_DEBUG, ndp->ndev.dev,
"ncsi: new vlan id to set: %u\n",
"NCSI: new vlan id to set: %u\n",
vlan->vid);
break;
}
......@@ -745,7 +747,7 @@ static int set_one_vid(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc,
}
netdev_printk(KERN_DEBUG, ndp->ndev.dev,
"ncsi: set vid %u in packet, index %u\n",
"NCSI: set vid %u in packet, index %u\n",
vlan->vid, index + 1);
nca->type = NCSI_PKT_CMD_SVF;
nca->words[1] = vlan->vid;
......@@ -784,8 +786,11 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
nca.package = np->id;
nca.channel = NCSI_RESERVED_CHANNEL;
ret = ncsi_xmit_cmd(&nca);
if (ret)
if (ret) {
netdev_err(ndp->ndev.dev,
"NCSI: Failed to transmit CMD_SP\n");
goto error;
}
nd->state = ncsi_dev_state_config_cis;
break;
......@@ -797,8 +802,11 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
nca.package = np->id;
nca.channel = nc->id;
ret = ncsi_xmit_cmd(&nca);
if (ret)
if (ret) {
netdev_err(ndp->ndev.dev,
"NCSI: Failed to transmit CMD_CIS\n");
goto error;
}
nd->state = ncsi_dev_state_config_clear_vids;
break;
......@@ -895,10 +903,16 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
}
ret = ncsi_xmit_cmd(&nca);
if (ret)
if (ret) {
netdev_err(ndp->ndev.dev,
"NCSI: Failed to transmit CMD %x\n",
nca.type);
goto error;
}
break;
case ncsi_dev_state_config_done:
netdev_printk(KERN_DEBUG, ndp->ndev.dev,
"NCSI: channel %u config done\n", nc->id);
spin_lock_irqsave(&nc->lock, flags);
if (nc->reconfigure_needed) {
/* This channel's configuration has been updated
......@@ -925,6 +939,9 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
} else {
hot_nc = NULL;
nc->state = NCSI_CHANNEL_INACTIVE;
netdev_warn(ndp->ndev.dev,
"NCSI: channel %u link down after config\n",
nc->id);
}
spin_unlock_irqrestore(&nc->lock, flags);
......@@ -937,8 +954,8 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
ncsi_process_next_channel(ndp);
break;
default:
netdev_warn(dev, "Wrong NCSI state 0x%x in config\n",
nd->state);
netdev_alert(dev, "Wrong NCSI state 0x%x in config\n",
nd->state);
}
return;
......@@ -990,10 +1007,17 @@ static int ncsi_choose_active_channel(struct ncsi_dev_priv *ndp)
}
if (!found) {
netdev_warn(ndp->ndev.dev,
"NCSI: No channel found with link\n");
ncsi_report_link(ndp, true);
return -ENODEV;
}
ncm = &found->modes[NCSI_MODE_LINK];
netdev_printk(KERN_DEBUG, ndp->ndev.dev,
"NCSI: Channel %u added to queue (link %s)\n",
found->id, ncm->data[2] & 0x1 ? "up" : "down");
out:
spin_lock_irqsave(&ndp->lock, flags);
list_add_tail_rcu(&found->link, &ndp->channel_queue);
......@@ -1055,6 +1079,8 @@ static int ncsi_enable_hwa(struct ncsi_dev_priv *ndp)
/* We can have no channels in extremely case */
if (list_empty(&ndp->channel_queue)) {
netdev_err(ndp->ndev.dev,
"NCSI: No available channels for HWA\n");
ncsi_report_link(ndp, false);
return -ENOENT;
}
......@@ -1223,6 +1249,9 @@ static void ncsi_probe_channel(struct ncsi_dev_priv *ndp)
return;
error:
netdev_err(ndp->ndev.dev,
"NCSI: Failed to transmit cmd 0x%x during probe\n",
nca.type);
ncsi_report_link(ndp, true);
}
......@@ -1276,10 +1305,14 @@ int ncsi_process_next_channel(struct ncsi_dev_priv *ndp)
switch (old_state) {
case NCSI_CHANNEL_INACTIVE:
ndp->ndev.state = ncsi_dev_state_config;
netdev_info(ndp->ndev.dev, "NCSI: configuring channel %u\n",
nc->id);
ncsi_configure_channel(ndp);
break;
case NCSI_CHANNEL_ACTIVE:
ndp->ndev.state = ncsi_dev_state_suspend;
netdev_info(ndp->ndev.dev, "NCSI: suspending channel %u\n",
nc->id);
ncsi_suspend_channel(ndp);
break;
default:
......@@ -1299,6 +1332,8 @@ int ncsi_process_next_channel(struct ncsi_dev_priv *ndp)
return ncsi_choose_active_channel(ndp);
}
netdev_printk(KERN_DEBUG, ndp->ndev.dev,
"NCSI: No more channels to process\n");
ncsi_report_link(ndp, false);
return -ENODEV;
}
......@@ -1390,7 +1425,7 @@ static int ncsi_kick_channels(struct ncsi_dev_priv *ndp)
ncsi_dev_state_config ||
!list_empty(&nc->link)) {
netdev_printk(KERN_DEBUG, nd->dev,
"ncsi: channel %p marked dirty\n",
"NCSI: channel %p marked dirty\n",
nc);
nc->reconfigure_needed = true;
}
......@@ -1410,7 +1445,7 @@ static int ncsi_kick_channels(struct ncsi_dev_priv *ndp)
spin_unlock_irqrestore(&ndp->lock, flags);
netdev_printk(KERN_DEBUG, nd->dev,
"ncsi: kicked channel %p\n", nc);
"NCSI: kicked channel %p\n", nc);
n++;
}
}
......@@ -1431,7 +1466,7 @@ int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
nd = ncsi_find_dev(dev);
if (!nd) {
netdev_warn(dev, "ncsi: No net_device?\n");
netdev_warn(dev, "NCSI: No net_device?\n");
return 0;
}
......@@ -1442,7 +1477,7 @@ int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
n_vids++;
if (vlan->vid == vid) {
netdev_printk(KERN_DEBUG, dev,
"vid %u already registered\n", vid);
"NCSI: vid %u already registered\n", vid);
return 0;
}
}
......@@ -1461,7 +1496,7 @@ int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
vlan->vid = vid;
list_add_rcu(&vlan->list, &ndp->vlan_vids);
netdev_printk(KERN_DEBUG, dev, "Added new vid %u\n", vid);
netdev_printk(KERN_DEBUG, dev, "NCSI: Added new vid %u\n", vid);
found = ncsi_kick_channels(ndp) != 0;
......@@ -1481,7 +1516,7 @@ int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
nd = ncsi_find_dev(dev);
if (!nd) {
netdev_warn(dev, "ncsi: no net_device?\n");
netdev_warn(dev, "NCSI: no net_device?\n");
return 0;
}
......@@ -1491,14 +1526,14 @@ int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
list_for_each_entry_safe(vlan, tmp, &ndp->vlan_vids, list)
if (vlan->vid == vid) {
netdev_printk(KERN_DEBUG, dev,
"vid %u found, removing\n", vid);
"NCSI: vid %u found, removing\n", vid);
list_del_rcu(&vlan->list);
found = true;
kfree(vlan);
}
if (!found) {
netdev_err(dev, "ncsi: vid %u wasn't registered!\n", vid);
netdev_err(dev, "NCSI: vid %u wasn't registered!\n", vid);
return -EINVAL;
}
......@@ -1581,10 +1616,12 @@ int ncsi_start_dev(struct ncsi_dev *nd)
return 0;
}
if (ndp->flags & NCSI_DEV_HWA)
if (ndp->flags & NCSI_DEV_HWA) {
netdev_info(ndp->ndev.dev, "NCSI: Enabling HWA mode\n");
ret = ncsi_enable_hwa(ndp);
else
} else {
ret = ncsi_choose_active_channel(ndp);
}
return ret;
}
......@@ -1615,6 +1652,7 @@ void ncsi_stop_dev(struct ncsi_dev *nd)
}
}
netdev_printk(KERN_DEBUG, ndp->ndev.dev, "NCSI: Stopping device\n");
ncsi_report_link(ndp, true);
}
EXPORT_SYMBOL_GPL(ncsi_stop_dev);
......
......@@ -1032,11 +1032,19 @@ int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev,
if (payload < 0)
payload = ntohs(hdr->length);
ret = ncsi_validate_rsp_pkt(nr, payload);
if (ret)
if (ret) {
netdev_warn(ndp->ndev.dev,
"NCSI: 'bad' packet ignored for type 0x%x\n",
hdr->type);
goto out;
}
/* Process the packet */
ret = nrh->handler(nr);
if (ret)
netdev_err(ndp->ndev.dev,
"NCSI: Handler for packet type 0x%x returned %d\n",
hdr->type, ret);
out:
ncsi_free_request(nr);
return ret;
......
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