diff options
| author | Samuel Mendoza-Jonas <sam@mendozajonas.com> | 2018-03-05 03:39:05 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-05 18:43:37 +0300 |
| commit | 955dc68cb9b23b42999cafe6df3684309bc686c6 (patch) | |
| tree | b357c2668aba700e94a7e4a3a87b61eca62ea66a /net/ncsi/ncsi-manage.c | |
| parent | be631892948060f44b1ceee3132be1266932071e (diff) | |
| download | linux-955dc68cb9b23b42999cafe6df3684309bc686c6.tar.xz | |
net/ncsi: Add generic netlink family
Add a generic netlink family for NCSI. This supports three commands;
NCSI_CMD_PKG_INFO which returns information on packages and their
associated channels, NCSI_CMD_SET_INTERFACE which allows a specific
package or package/channel combination to be set as the preferred
choice, and NCSI_CMD_CLEAR_INTERFACE which clears any preferred setting.
Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ncsi/ncsi-manage.c')
| -rw-r--r-- | net/ncsi/ncsi-manage.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c index c989211bbabc..c3695ba0cf94 100644 --- a/net/ncsi/ncsi-manage.c +++ b/net/ncsi/ncsi-manage.c @@ -12,7 +12,6 @@ #include <linux/init.h> #include <linux/netdevice.h> #include <linux/skbuff.h> -#include <linux/netlink.h> #include <net/ncsi.h> #include <net/net_namespace.h> @@ -23,6 +22,7 @@ #include "internal.h" #include "ncsi-pkt.h" +#include "ncsi-netlink.h" LIST_HEAD(ncsi_dev_list); DEFINE_SPINLOCK(ncsi_dev_lock); @@ -38,7 +38,7 @@ static inline int ncsi_filter_size(int table) return sizes[table]; } -static u32 *ncsi_get_filter(struct ncsi_channel *nc, int table, int index) +u32 *ncsi_get_filter(struct ncsi_channel *nc, int table, int index) { struct ncsi_channel_filter *ncf; int size; @@ -965,20 +965,37 @@ error: static int ncsi_choose_active_channel(struct ncsi_dev_priv *ndp) { - struct ncsi_package *np; - struct ncsi_channel *nc, *found, *hot_nc; + struct ncsi_package *np, *force_package; + struct ncsi_channel *nc, *found, *hot_nc, *force_channel; struct ncsi_channel_mode *ncm; unsigned long flags; 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. */ found = NULL; NCSI_FOR_EACH_PACKAGE(ndp, np) { + if (ndp->force_package && np != ndp->force_package) + continue; NCSI_FOR_EACH_CHANNEL(np, nc) { spin_lock_irqsave(&nc->lock, flags); @@ -1594,6 +1611,9 @@ struct ncsi_dev *ncsi_register_dev(struct net_device *dev, ndp->ptype.dev = dev; dev_add_pack(&ndp->ptype); + /* Set up generic netlink interface */ + ncsi_init_netlink(dev); + return nd; } EXPORT_SYMBOL_GPL(ncsi_register_dev); @@ -1673,6 +1693,8 @@ void ncsi_unregister_dev(struct ncsi_dev *nd) #endif spin_unlock_irqrestore(&ncsi_dev_lock, flags); + ncsi_unregister_netlink(nd->dev); + kfree(ndp); } EXPORT_SYMBOL_GPL(ncsi_unregister_dev); |