[RFC PATCH 2/2] net/ncsi: Configure multi-package, multi-channel modes with failover
Samuel Mendoza-Jonas
sam at mendozajonas.com
Tue Oct 9 14:58:15 AEDT 2018
This patch extends the ncsi-netlink interface with two new commands and
three new attributes to configure multiple packages and/or channels at
once, and configure specific failover modes.
NCSI_CMD_SET_PACKAGE mask and NCSI_CMD_SET_CHANNEL_MASK set a whitelist
of packages or channels allowed to be configured with the
NCSI_ATTR_PACKAGE_MASK and NCSI_ATTR_CHANNEL_MASK attributes
respectively. If one of these whitelists is set only packages or
channels matching the whitelist are considered for the channel queue in
ncsi_choose_active_channel().
These commands may also use the NCSI_ATTR_MULTI_FLAG to signal that
multiple packages or channels may be configured simultaneously. NCSI
hardware arbitration (HWA) must be available in order to enable
multi-package mode. Multi-channel mode is always available.
If the NCSI_ATTR_CHANNEL_ID attribute is present in the
NCSI_CMD_SET_CHANNEL_MASK command the it sets the preferred channel as
with the NCSI_CMD_SET_INTERFACE command. The combination of preferred
channel and channel whitelist defines a primary channel and the allowed
failover channels.
If the NCSI_ATTR_MULTI_FLAG attribute is also present then the preferred
channel is configured for Tx/Rx and the other channels are enabled only
for Rx.
Signed-off-by: Samuel Mendoza-Jonas <sam at mendozajonas.com>
---
include/uapi/linux/ncsi.h | 16 +++
net/ncsi/internal.h | 11 +-
net/ncsi/ncsi-aen.c | 2 +-
net/ncsi/ncsi-manage.c | 138 ++++++++++++++++--------
net/ncsi/ncsi-netlink.c | 217 +++++++++++++++++++++++++++++++++-----
net/ncsi/ncsi-rsp.c | 2 +-
6 files changed, 312 insertions(+), 74 deletions(-)
diff --git a/include/uapi/linux/ncsi.h b/include/uapi/linux/ncsi.h
index 4c292ecbb748..035fba1693f9 100644
--- a/include/uapi/linux/ncsi.h
+++ b/include/uapi/linux/ncsi.h
@@ -23,6 +23,13 @@
* optionally the preferred NCSI_ATTR_CHANNEL_ID.
* @NCSI_CMD_CLEAR_INTERFACE: clear any preferred package/channel combination.
* Requires NCSI_ATTR_IFINDEX.
+ * @NCSI_CMD_SET_PACKAGE_MASK: set a whitelist of allowed packages.
+ * @NCSI_CMD_SET_PACKAGE_MASK: set a whitelist of allowed channels.
+ * Requires NCSI_ATTR_IFINDEX and NCSI_ATTR_PACKAGE_MASK.
+ * @NCSI_CMD_SET_PACKAGE_MASK: set a whitelist of allowed channels.
+ * Requires NCSI_ATTR_IFINDEX, NCSI_ATTR_PACKAGE_ID, and
+ * NCSI_ATTR_CHANNEL_MASK. If NCSI_ATTR_CHANNEL_ID is present it sets
+ * the primary channel.
* @NCSI_CMD_MAX: highest command number
*/
enum ncsi_nl_commands {
@@ -30,6 +37,8 @@ enum ncsi_nl_commands {
NCSI_CMD_PKG_INFO,
NCSI_CMD_SET_INTERFACE,
NCSI_CMD_CLEAR_INTERFACE,
+ NCSI_CMD_SET_PACKAGE_MASK,
+ NCSI_CMD_SET_CHANNEL_MASK,
__NCSI_CMD_AFTER_LAST,
NCSI_CMD_MAX = __NCSI_CMD_AFTER_LAST - 1
@@ -43,6 +52,10 @@ enum ncsi_nl_commands {
* @NCSI_ATTR_PACKAGE_LIST: nested array of NCSI_PKG_ATTR attributes
* @NCSI_ATTR_PACKAGE_ID: package ID
* @NCSI_ATTR_CHANNEL_ID: channel ID
+ * @NCSI_ATTR_MULTI_FLAG: flag to signal that multi-mode should be enabled with
+ * NCSI_CMD_SET_PACKAGE_MASK or NCSI_CMD_SET_CHANNEL_MASK.
+ * @NCSI_ATTR_PACKAGE_MASK: 32-bit mask of allowed packages.
+ * @NCSI_ATTR_CHANNEL_MASK: 32-bit mask of allowed channels.
* @NCSI_ATTR_MAX: highest attribute number
*/
enum ncsi_nl_attrs {
@@ -51,6 +64,9 @@ enum ncsi_nl_attrs {
NCSI_ATTR_PACKAGE_LIST,
NCSI_ATTR_PACKAGE_ID,
NCSI_ATTR_CHANNEL_ID,
+ NCSI_ATTR_MULTI_FLAG,
+ NCSI_ATTR_PACKAGE_MASK,
+ NCSI_ATTR_CHANNEL_MASK,
__NCSI_ATTR_AFTER_LAST,
NCSI_ATTR_MAX = __NCSI_ATTR_AFTER_LAST - 1
diff --git a/net/ncsi/internal.h b/net/ncsi/internal.h
index 3d0a33b874f5..8437474d0a78 100644
--- a/net/ncsi/internal.h
+++ b/net/ncsi/internal.h
@@ -213,6 +213,10 @@ struct ncsi_package {
unsigned int channel_num; /* Number of channels */
struct list_head channels; /* List of chanels */
struct list_head node; /* Form list of packages */
+
+ bool multi_channel; /* Enable multiple channels */
+ u32 channel_whitelist; /* Channels to configure */
+ struct ncsi_channel *preferred_channel; /* Primary channel */
};
struct ncsi_request {
@@ -280,8 +284,6 @@ struct ncsi_dev_priv {
unsigned int package_num; /* Number of packages */
struct list_head packages; /* List of packages */
struct ncsi_channel *hot_channel; /* Channel was ever active */
- struct ncsi_package *force_package; /* Force a specific package */
- struct ncsi_channel *force_channel; /* Force a specific channel */
struct ncsi_request requests[256]; /* Request table */
unsigned int request_id; /* Last used request ID */
#define NCSI_REQ_START_IDX 1
@@ -294,6 +296,9 @@ struct ncsi_dev_priv {
struct list_head node; /* Form NCSI device list */
#define NCSI_MAX_VLAN_VIDS 15
struct list_head vlan_vids; /* List of active VLAN IDs */
+
+ bool multi_package; /* Enable multiple packages */
+ u32 package_whitelist; /* Packages to configure */
};
struct ncsi_cmd_arg {
@@ -345,6 +350,8 @@ struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp,
void ncsi_free_request(struct ncsi_request *nr);
struct ncsi_dev *ncsi_find_dev(struct net_device *dev);
int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);
+bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp,
+ struct ncsi_channel *channel);
/* Packet handlers */
u32 ncsi_calculate_checksum(unsigned char *data, int len);
diff --git a/net/ncsi/ncsi-aen.c b/net/ncsi/ncsi-aen.c
index 65f47a648be3..eac56aee30c4 100644
--- a/net/ncsi/ncsi-aen.c
+++ b/net/ncsi/ncsi-aen.c
@@ -86,7 +86,7 @@ static int ncsi_aen_handler_lsc(struct ncsi_dev_priv *ndp,
!(state == NCSI_CHANNEL_ACTIVE && !(data & 0x1)))
return 0;
- if (state == NCSI_CHANNEL_ACTIVE)
+ if (state == NCSI_CHANNEL_ACTIVE && ncsi_channel_is_last(ndp, nc))
ndp->flags |= NCSI_DEV_RESHUFFLE;
ncsi_stop_channel_monitor(nc);
diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c
index 665bee25ec44..6a55df700bcb 100644
--- a/net/ncsi/ncsi-manage.c
+++ b/net/ncsi/ncsi-manage.c
@@ -27,6 +27,24 @@
LIST_HEAD(ncsi_dev_list);
DEFINE_SPINLOCK(ncsi_dev_lock);
+/* Returns true if the given channel is the last channel available */
+bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp,
+ struct ncsi_channel *channel)
+{
+ struct ncsi_package *np;
+ struct ncsi_channel *nc;
+
+ NCSI_FOR_EACH_PACKAGE(ndp, np)
+ NCSI_FOR_EACH_CHANNEL(np, nc) {
+ if (nc == channel)
+ continue;
+ if (nc->state == NCSI_CHANNEL_ACTIVE)
+ return false;
+ }
+
+ return true;
+}
+
static void ncsi_report_link(struct ncsi_dev_priv *ndp, bool force_down)
{
struct ncsi_dev *nd = &ndp->ndev;
@@ -266,6 +284,7 @@ struct ncsi_package *ncsi_add_package(struct ncsi_dev_priv *ndp,
np->ndp = ndp;
spin_lock_init(&np->lock);
INIT_LIST_HEAD(&np->channels);
+ np->channel_whitelist = UINT_MAX;
spin_lock_irqsave(&ndp->lock, flags);
tmp = ncsi_find_package(ndp, id);
@@ -633,6 +652,34 @@ static int set_one_vid(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc,
return 0;
}
+/* Determine if a given channel should be the Tx channel */
+bool ncsi_channel_is_tx(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc)
+{
+ struct ncsi_package *np = nc->package;
+ struct ncsi_channel *channel;
+ struct ncsi_channel_mode *ncm;
+
+ NCSI_FOR_EACH_CHANNEL(np, channel) {
+ ncm = &channel->modes[NCSI_MODE_TX_ENABLE];
+ /* Another channel is already Tx */
+ if (ncm->enable)
+ return false;
+ }
+
+ if (!np->preferred_channel)
+ return true;
+
+ if (np->preferred_channel == nc)
+ return true;
+
+ /* The preferred channel is not in the queue and not active */
+ if (list_empty(&np->preferred_channel->link) &&
+ np->preferred_channel->state != NCSI_CHANNEL_ACTIVE)
+ return true;
+
+ return false;
+}
+
static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
{
struct ncsi_dev *nd = &ndp->ndev;
@@ -745,18 +792,22 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
} else if (nd->state == ncsi_dev_state_config_ebf) {
nca.type = NCSI_PKT_CMD_EBF;
nca.dwords[0] = nc->caps[NCSI_CAP_BC].cap;
- nd->state = ncsi_dev_state_config_ecnt;
+ if (ncsi_channel_is_tx(ndp, nc))
+ nd->state = ncsi_dev_state_config_ecnt;
+ else
+ nd->state = ncsi_dev_state_config_ec;
#if IS_ENABLED(CONFIG_IPV6)
if (ndp->inet6_addr_num > 0 &&
(nc->caps[NCSI_CAP_GENERIC].cap &
NCSI_CAP_GENERIC_MC))
nd->state = ncsi_dev_state_config_egmf;
- else
- nd->state = ncsi_dev_state_config_ecnt;
} else if (nd->state == ncsi_dev_state_config_egmf) {
nca.type = NCSI_PKT_CMD_EGMF;
nca.dwords[0] = nc->caps[NCSI_CAP_MC].cap;
- nd->state = ncsi_dev_state_config_ecnt;
+ if (ncsi_channel_is_tx(ndp, nc))
+ nd->state = ncsi_dev_state_config_ecnt;
+ else
+ nd->state = ncsi_dev_state_config_ec;
#endif /* CONFIG_IPV6 */
} else if (nd->state == ncsi_dev_state_config_ecnt) {
nca.type = NCSI_PKT_CMD_ECNT;
@@ -840,43 +891,35 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
static int ncsi_choose_active_channel(struct ncsi_dev_priv *ndp)
{
- struct ncsi_package *np, *force_package;
- struct ncsi_channel *nc, *found, *hot_nc, *force_channel;
+ struct ncsi_package *np;
+ struct ncsi_channel *nc, *found, *hot_nc;
struct ncsi_channel_mode *ncm;
- unsigned long flags;
+ unsigned long flags, cflags;
+ bool with_link;
spin_lock_irqsave(&ndp->lock, flags);
hot_nc = ndp->hot_channel;
- force_channel = ndp->force_channel;
- force_package = ndp->force_package;
spin_unlock_irqrestore(&ndp->lock, flags);
- /* Force a specific channel whether or not it has link if we have been
- * configured to do so
- */
- if (force_package && force_channel) {
- found = force_channel;
- ncm = &found->modes[NCSI_MODE_LINK];
- if (!(ncm->data[2] & 0x1))
- netdev_info(ndp->ndev.dev,
- "NCSI: Channel %u forced, but it is link down\n",
- found->id);
- goto out;
- }
-
- /* The search is done once an inactive channel with up
- * link is found.
+ /* By default the search is done once an inactive channel with up
+ * link is found, unless a preferred channel is set.
+ * If multi_package or multi_channel are configured all channels in the
+ * whitelist with link are added to the channel queue.
*/
found = NULL;
+ with_link = false;
NCSI_FOR_EACH_PACKAGE(ndp, np) {
- if (ndp->force_package && np != ndp->force_package)
+ if (!(ndp->package_whitelist & (0x1 << np->id)))
continue;
NCSI_FOR_EACH_CHANNEL(np, nc) {
- spin_lock_irqsave(&nc->lock, flags);
+ if (!(np->channel_whitelist & (0x1 << nc->id)))
+ continue;
+
+ spin_lock_irqsave(&nc->lock, cflags);
if (!list_empty(&nc->link) ||
nc->state != NCSI_CHANNEL_INACTIVE) {
- spin_unlock_irqrestore(&nc->lock, flags);
+ spin_unlock_irqrestore(&nc->lock, cflags);
continue;
}
@@ -888,32 +931,42 @@ static int ncsi_choose_active_channel(struct ncsi_dev_priv *ndp)
ncm = &nc->modes[NCSI_MODE_LINK];
if (ncm->data[2] & 0x1) {
- spin_unlock_irqrestore(&nc->lock, flags);
found = nc;
- goto out;
+ with_link = true;
+
+ spin_lock_irqsave(&ndp->lock, flags);
+ list_add_tail_rcu(&found->link,
+ &ndp->channel_queue);
+ spin_unlock_irqrestore(&ndp->lock, flags);
+
+ netdev_dbg(ndp->ndev.dev,
+ "NCSI: Channel %u added to queue (link %s)\n",
+ found->id,
+ ncm->data[2] & 0x1 ? "up" : "down");
}
+ spin_unlock_irqrestore(&nc->lock, cflags);
- spin_unlock_irqrestore(&nc->lock, flags);
+ if (with_link && !np->multi_channel)
+ break;
}
+ if (with_link && !ndp->multi_package)
+ break;
}
- if (!found) {
+ if (!with_link && found) {
+ netdev_info(ndp->ndev.dev,
+ "NCSI: No channel with link found, configuring channel %u\n",
+ found->id);
+ spin_lock_irqsave(&ndp->lock, flags);
+ list_add_tail_rcu(&found->link, &ndp->channel_queue);
+ spin_unlock_irqrestore(&ndp->lock, flags);
+ } else if (!found) {
netdev_warn(ndp->ndev.dev,
- "NCSI: No channel found with link\n");
+ "NCSI: No channel found to configure!\n");
ncsi_report_link(ndp, true);
return -ENODEV;
}
- ncm = &found->modes[NCSI_MODE_LINK];
- netdev_dbg(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);
- spin_unlock_irqrestore(&ndp->lock, flags);
-
return ncsi_process_next_channel(ndp);
}
@@ -1428,6 +1481,7 @@ struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
INIT_LIST_HEAD(&ndp->channel_queue);
INIT_LIST_HEAD(&ndp->vlan_vids);
INIT_WORK(&ndp->work, ncsi_dev_work);
+ ndp->package_whitelist = UINT_MAX;
/* Initialize private NCSI device */
spin_lock_init(&ndp->lock);
diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
index 32cb7751d216..33a091e6f466 100644
--- a/net/ncsi/ncsi-netlink.c
+++ b/net/ncsi/ncsi-netlink.c
@@ -67,7 +67,7 @@ static int ncsi_write_channel_info(struct sk_buff *skb,
nla_put_u32(skb, NCSI_CHANNEL_ATTR_LINK_STATE, m->data[2]);
if (nc->state == NCSI_CHANNEL_ACTIVE)
nla_put_flag(skb, NCSI_CHANNEL_ATTR_ACTIVE);
- if (ndp->force_channel == nc)
+ if (nc == nc->package->preferred_channel)
nla_put_flag(skb, NCSI_CHANNEL_ATTR_FORCED);
nla_put_u32(skb, NCSI_CHANNEL_ATTR_VERSION_MAJOR, nc->version.version);
@@ -112,7 +112,7 @@ static int ncsi_write_package_info(struct sk_buff *skb,
if (!pnest)
return -ENOMEM;
nla_put_u32(skb, NCSI_PKG_ATTR_ID, np->id);
- if (ndp->force_package == np)
+ if ((0x1 << np->id) == ndp->package_whitelist)
nla_put_flag(skb, NCSI_PKG_ATTR_FORCED);
cnest = nla_nest_start(skb, NCSI_PKG_ATTR_CHANNEL_LIST);
if (!cnest) {
@@ -288,45 +288,54 @@ static int ncsi_set_interface_nl(struct sk_buff *msg, struct genl_info *info)
package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
package = NULL;
- spin_lock_irqsave(&ndp->lock, flags);
-
NCSI_FOR_EACH_PACKAGE(ndp, np)
if (np->id == package_id)
package = np;
if (!package) {
/* The user has set a package that does not exist */
- spin_unlock_irqrestore(&ndp->lock, flags);
return -ERANGE;
}
channel = NULL;
- if (!info->attrs[NCSI_ATTR_CHANNEL_ID]) {
- /* Allow any channel */
- channel_id = NCSI_RESERVED_CHANNEL;
- } else {
+ if (info->attrs[NCSI_ATTR_CHANNEL_ID]) {
channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
NCSI_FOR_EACH_CHANNEL(package, nc)
- if (nc->id == channel_id)
+ if (nc->id == channel_id) {
channel = nc;
+ break;
+ }
+ if (!channel) {
+ netdev_info(ndp->ndev.dev,
+ "NCSI: Channel %u does not exist!\n",
+ channel_id);
+ return -ERANGE;
+ }
}
- if (channel_id != NCSI_RESERVED_CHANNEL && !channel) {
- /* The user has set a channel that does not exist on this
- * package
- */
- spin_unlock_irqrestore(&ndp->lock, flags);
- netdev_info(ndp->ndev.dev, "NCSI: Channel %u does not exist!\n",
- channel_id);
- return -ERANGE;
- }
-
- ndp->force_package = package;
- ndp->force_channel = channel;
+ spin_lock_irqsave(&ndp->lock, flags);
+ ndp->package_whitelist = 0x1 << package->id;
+ ndp->multi_package = false;
spin_unlock_irqrestore(&ndp->lock, flags);
- netdev_info(ndp->ndev.dev, "Set package 0x%x, channel 0x%x%s as preferred\n",
- package_id, channel_id,
- channel_id == NCSI_RESERVED_CHANNEL ? " (any)" : "");
+ spin_lock_irqsave(&package->lock, flags);
+ package->multi_channel = false;
+ if (channel) {
+ package->channel_whitelist = 0x1 << channel->id;
+ package->preferred_channel = channel;
+ } else {
+ /* Allow any channel */
+ package->channel_whitelist = UINT_MAX;
+ package->preferred_channel = NULL;
+ }
+ spin_unlock_irqrestore(&package->lock, flags);
+
+ if (channel)
+ netdev_info(ndp->ndev.dev,
+ "Set package 0x%x, channel 0x%x as preferred\n",
+ package_id, channel_id);
+ else
+ netdev_info(ndp->ndev.dev, "Set package 0x%x as preferred\n",
+ package_id);
/* Bounce the NCSI channel to set changes */
ncsi_stop_dev(&ndp->ndev);
@@ -338,6 +347,7 @@ static int ncsi_set_interface_nl(struct sk_buff *msg, struct genl_info *info)
static int ncsi_clear_interface_nl(struct sk_buff *msg, struct genl_info *info)
{
struct ncsi_dev_priv *ndp;
+ struct ncsi_package *np;
unsigned long flags;
if (!info || !info->attrs)
@@ -351,11 +361,19 @@ static int ncsi_clear_interface_nl(struct sk_buff *msg, struct genl_info *info)
if (!ndp)
return -ENODEV;
- /* Clear any override */
+ /* Reset any whitelists and disable multi mode */
spin_lock_irqsave(&ndp->lock, flags);
- ndp->force_package = NULL;
- ndp->force_channel = NULL;
+ ndp->package_whitelist = UINT_MAX;
+ ndp->multi_package = false;
spin_unlock_irqrestore(&ndp->lock, flags);
+
+ NCSI_FOR_EACH_PACKAGE(ndp, np) {
+ spin_lock_irqsave(&np->lock, flags);
+ np->multi_channel = false;
+ np->channel_whitelist = UINT_MAX;
+ np->preferred_channel = NULL;
+ spin_unlock_irqrestore(&np->lock, flags);
+ }
netdev_info(ndp->ndev.dev, "NCSI: Cleared preferred package/channel\n");
/* Bounce the NCSI channel to set changes */
@@ -365,6 +383,137 @@ static int ncsi_clear_interface_nl(struct sk_buff *msg, struct genl_info *info)
return 0;
}
+static int ncsi_set_package_mask_nl(struct sk_buff *msg,
+ struct genl_info *info)
+{
+ struct ncsi_dev_priv *ndp;
+ unsigned long flags;
+ int rc;
+
+ if (!info || !info->attrs)
+ return -EINVAL;
+
+ if (!info->attrs[NCSI_ATTR_IFINDEX])
+ return -EINVAL;
+
+ if (!info->attrs[NCSI_ATTR_PACKAGE_MASK])
+ return -EINVAL;
+
+ ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
+ nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+ if (!ndp)
+ return -ENODEV;
+
+ spin_lock_irqsave(&ndp->lock, flags);
+ ndp->package_whitelist =
+ nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_MASK]);
+
+ if (nla_get_flag(info->attrs[NCSI_ATTR_MULTI_FLAG])) {
+ if (ndp->flags & NCSI_DEV_HWA) {
+ ndp->multi_package = true;
+ rc = 0;
+ } else {
+ netdev_err(ndp->ndev.dev,
+ "NCSI: Can't use multiple packages without HWA\n");
+ rc = -EPERM;
+ }
+ } else {
+ rc = 0;
+ }
+
+ spin_unlock_irqrestore(&ndp->lock, flags);
+
+ if (!rc) {
+ /* Bounce the NCSI channel to set changes */
+ ncsi_stop_dev(&ndp->ndev);
+ ncsi_start_dev(&ndp->ndev);
+ }
+
+ return rc;
+}
+
+static int ncsi_set_channel_mask_nl(struct sk_buff *msg,
+ struct genl_info *info)
+{
+ struct ncsi_package *np, *package;
+ struct ncsi_channel *nc, *channel;
+ struct ncsi_dev_priv *ndp;
+ unsigned long flags;
+ u32 package_id, channel_id;
+
+ if (!info || !info->attrs)
+ return -EINVAL;
+
+ if (!info->attrs[NCSI_ATTR_IFINDEX])
+ return -EINVAL;
+
+ if (!info->attrs[NCSI_ATTR_PACKAGE_ID])
+ return -EINVAL;
+
+ if (!info->attrs[NCSI_ATTR_CHANNEL_MASK])
+ return -EINVAL;
+
+ ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
+ nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+ if (!ndp)
+ return -ENODEV;
+
+ package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
+ package = NULL;
+ NCSI_FOR_EACH_PACKAGE(ndp, np)
+ if (np->id == package_id) {
+ package = np;
+ break;
+ }
+ if (!package)
+ return -ERANGE;
+
+ spin_lock_irqsave(&package->lock, flags);
+
+ channel = NULL;
+ if (info->attrs[NCSI_ATTR_CHANNEL_ID]) {
+ channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
+ NCSI_FOR_EACH_CHANNEL(np, nc)
+ if (nc->id == channel_id) {
+ channel = nc;
+ break;
+ }
+ if (!channel) {
+ spin_unlock_irqrestore(&package->lock, flags);
+ return -ERANGE;
+ }
+ netdev_dbg(ndp->ndev.dev,
+ "NCSI: Channel %u set as preferred channel\n",
+ channel->id);
+ }
+
+ package->channel_whitelist =
+ nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_MASK]);
+ if (package->channel_whitelist == 0)
+ netdev_dbg(ndp->ndev.dev,
+ "NCSI: Package %u set to all channels disabled\n",
+ package->id);
+
+ package->preferred_channel = channel;
+
+ if (nla_get_flag(info->attrs[NCSI_ATTR_MULTI_FLAG])) {
+ package->multi_channel = true;
+ netdev_info(ndp->ndev.dev,
+ "NCSI: Multi-channel enabled on package %u\n",
+ package_id);
+ } else {
+ package->multi_channel = false;
+ }
+
+ spin_unlock_irqrestore(&package->lock, flags);
+
+ /* Bounce the NCSI channel to set changes */
+ ncsi_stop_dev(&ndp->ndev);
+ ncsi_start_dev(&ndp->ndev);
+
+ return 0;
+}
+
static const struct genl_ops ncsi_ops[] = {
{
.cmd = NCSI_CMD_PKG_INFO,
@@ -385,6 +534,18 @@ static const struct genl_ops ncsi_ops[] = {
.doit = ncsi_clear_interface_nl,
.flags = GENL_ADMIN_PERM,
},
+ {
+ .cmd = NCSI_CMD_SET_PACKAGE_MASK,
+ .policy = ncsi_genl_policy,
+ .doit = ncsi_set_package_mask_nl,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NCSI_CMD_SET_CHANNEL_MASK,
+ .policy = ncsi_genl_policy,
+ .doit = ncsi_set_channel_mask_nl,
+ .flags = GENL_ADMIN_PERM,
+ },
};
static struct genl_family ncsi_genl_family __ro_after_init = {
diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c
index d66b34749027..02ce7626b579 100644
--- a/net/ncsi/ncsi-rsp.c
+++ b/net/ncsi/ncsi-rsp.c
@@ -241,7 +241,7 @@ static int ncsi_rsp_handler_dcnt(struct ncsi_request *nr)
if (!ncm->enable)
return 0;
- ncm->enable = 1;
+ ncm->enable = 0;
return 0;
}
--
2.19.0
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