- 26 Feb, 2016 5 commits
-
-
David Decotigny authored
This patch defines a new ETHTOOL_GLINKSETTINGS/SLINKSETTINGS API, handled by the new get_link_ksettings/set_link_ksettings callbacks. This API provides support for most legacy ethtool_cmd fields, adds support for larger link mode masks (up to 4064 bits, variable length), and removes ethtool_cmd deprecated fields (transceiver/maxrxpkt/maxtxpkt). This API is deprecating the legacy ETHTOOL_GSET/SSET API and provides the following backward compatibility properties: - legacy ethtool with legacy drivers: no change, still using the get_settings/set_settings callbacks. - legacy ethtool with new get/set_link_ksettings drivers: the new driver callbacks are used, data internally converted to legacy ethtool_cmd. ETHTOOL_GSET will return only the 1st 32b of each link mode mask. ETHTOOL_SSET will fail if user tries to set the ethtool_cmd deprecated fields to non-0 (transceiver/maxrxpkt/maxtxpkt). A kernel warning is logged if driver sets higher bits. - future ethtool with legacy drivers: no change, still using the get_settings/set_settings callbacks, internally converted to new data structure. Deprecated fields (transceiver/maxrxpkt/maxtxpkt) will be ignored and seen as 0 from user space. Note that that "future" ethtool tool will not allow changes to these deprecated fields. - future ethtool with new drivers: direct call to the new callbacks. By "future" ethtool, what is meant is: - query: first try ETHTOOL_GLINKSETTINGS, and revert to ETHTOOL_GSET if fails - set: query first and remember which of ETHTOOL_GLINKSETTINGS or ETHTOOL_GSET was successful + if ETHTOOL_GLINKSETTINGS was successful, then change config with ETHTOOL_SLINKSETTINGS. A failure there is final (do not try ETHTOOL_SSET). + otherwise ETHTOOL_GSET was successful, change config with ETHTOOL_SSET. A failure there is final (do not try ETHTOOL_SLINKSETTINGS). The interaction user/kernel via the new API requires a small ETHTOOL_GLINKSETTINGS handshake first to agree on the length of the link mode bitmaps. If kernel doesn't agree with user, it returns the bitmap length it is expecting from user as a negative length (and cmd field is 0). When kernel and user agree, kernel returns valid info in all fields (ie. link mode length > 0 and cmd is ETHTOOL_GLINKSETTINGS). Data structure crossing user/kernel boundary is 32/64-bit agnostic. Converted internally to a legal kernel bitmap. The internal __ethtool_get_settings kernel helper will gradually be replaced by __ethtool_get_link_ksettings by the time the first "link_settings" drivers start to appear. So this patch doesn't change it, it will be removed before it needs to be changed. Signed-off-by:David Decotigny <decot@googlers.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
-
David Decotigny authored
Signed-off-by:
-
David Decotigny authored
Signed-off-by:
-
Tom Herbert authored
This patch add the SO_CNX_ADVICE socket option (setsockopt only). The purpose is to allow an application to give feedback to the kernel about the quality of the network path for a connected socket. The value argument indicates the type of quality report. For this initial patch the only supported advice is a value of 1 which indicates "bad path, please reroute"-- the action taken by the kernel is to call dst_negative_advice which will attempt to choose a different ECMP route, reset the TX hash for flow label and UDP source port in encapsulation, etc. This facility should be useful for connected UDP sockets where only the application can provide any feedback about path quality. It could also be useful for TCP applications that have additional knowledge about the path outside of the normal TCP control loop. Signed-off-by:
Tom Herbert <tom@herbertland.com> Signed-off-by:
-
David Ahern authored
Currently, all ipv6 addresses are flushed when the interface is configured down, including global, static addresses: $ ip -6 addr show dev eth1 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000 inet6 2100:1::2/120 scope global valid_lft forever preferred_lft forever inet6 fe80::e0:f9ff:fe79:34bd/64 scope link valid_lft forever preferred_lft forever $ ip link set dev eth1 down $ ip -6 addr show dev eth1 << nothing; all addresses have been flushed>> Add a new sysctl to make this behavior optional. The new setting defaults to flush all addresses to maintain backwards compatibility. When the set global addresses with no expire times are not flushed on an admin down. The sysctl is per-interface or system-wide for all interfaces $ sysctl -w net.ipv6.conf.eth1.keep_addr_on_down=1 or $ sysctl -w net.ipv6.conf.all.keep_addr_on_down=1 Will keep addresses on eth1 on an admin down. $ ip -6 addr show dev eth1 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000 inet6 2100:1::2/120 scope global valid_lft forever preferred_lft forever inet6 fe80::e0:f9ff:fe79:34bd/64 scope link valid_lft forever preferred_lft forever $ ip link set dev eth1 down $ ip -6 addr show dev eth1 3: eth1: <BROADCAST,MULTICAST> mtu 1500 state DOWN qlen 1000 inet6 2100:1::2/120 scope global tentative valid_lft forever preferred_lft forever inet6 fe80::e0:f9ff:fe79:34bd/64 scope link tentative valid_lft forever preferred_lft forever Signed-off-by:David Ahern <dsa@cumulusnetworks.com> Signed-off-by:
-
- 25 Feb, 2016 34 commits
-
-
Florian Westphal authored
msg.dst_sk needs to be set up with a valid socket because some callbacks later derive the netns from it. Fixes: 263ea09084d172d ("Revert "genl: Add genlmsg_new_unicast() for unicast message allocation") Reported-by:Jon Maloy <maloy@donjonn.com> Bisected-by:
Florian Westphal <fw@strlen.de> Acked-by Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
-
Jon Paul Maloy authored
When the TIPC module is unloaded, we have identified a race condition that allows a node reference counter to go to zero and the node instance being freed before the node timer is finished with accessing it. This leads to occasional crashes, especially in multi-namespace environments. The scenario goes as follows: CPU0:(node_stop) CPU1:(node_timeout) // ref == 2 1: if(!mod_timer()) 2: if (del_timer()) 3: tipc_node_put() // ref -> 1 4: tipc_node_put() // ref -> 0 5: kfree_rcu(node); 6: tipc_node_get(node) 7: // BOOM! We now clean up this functionality as follows: 1) We remove the node pointer from the node lookup table before we attempt deactivating the timer. This way, we reduce the risk that tipc_node_find() may obtain a valid pointer to an instance marked for deletion; a harmless but undesirable situation. 2) We use del_timer_sync() instead of del_timer() to safely deactivate the node timer without any risk that it might be reactivated by the timeout handler. There is no risk of deadlock here, since the two functions never touch the same spinlocks. 3: We remove a pointless tipc_node_get() + tipc_node_put() from the timeout handler. Reported-by:
Zhijiang Hu <huzhijiang@gmail.com> Acked-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
-
Jon Paul Maloy authored
Although we have never seen it happen, we have identified the following problematic scenario when nodes are stopped and deleted: CPU0: CPU1: tipc_node_xxx() //ref == 1 tipc_node_put() //ref -> 0 tipc_node_find() // node still in table tipc_node_delete() list_del_rcu(n. list) tipc_node_get() //ref -> 1, bad kfree_rcu() tipc_node_put() //ref to 0 again. kfree_rcu() // BOOM! We fix this by introducing use of the conditional kref_get_if_not_zero() instead of kref_get() in the function tipc_node_find(). This eliminates any risk of post-mortem access. Reported-by: -
David S. Miller authored
Yuval Mintz says: ==================== qed*: Driver updates Usually I try to provide a sensible description of the patch set even if it lacks a general 'motif', but this simply contains several small, unrelated and self-explenatory tweaks and additions. ==================== Signed-off-by: -
Yuval Mintz authored
Drop the `QL4xxx 40G/100G' and use `FastLinQ 4xxxx' instead. Signed-off-by:
Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by:
-
Yuval Mintz authored
Don't allow driver to probe on an adapter at a failed state; Gracefully block the probe instead. Signed-off-by:
-
Yuval Mintz authored
Module is using a binary firmware file and so should be marked as such. Signed-off-by:
-
Yuval Mintz authored
There are several corner cases where driver might get a 2nd notification about the same link change. Don't log any additional changes if the physical carrier is already reported as it should. Signed-off-by:
-
Yuval Mintz authored
There's a corner-case in HW where an SKB queued for transmission that contains too many frags will cause FW to assert. This patch solves this by linearizing the SKB if necessary. Signed-off-by:
-
Yuval Mintz authored
The device ID for the 10g module has changed. Populate the pci_ids table accordingly. Signed-off-by:
-
Amitoj Kaur Chawla authored
Introduce the use of kobj_to_dev() helper function instead of open coding it with container_of() The Coccinelle semantic patch used to make this change is as follows: //<smpl> @@ expression a; symbol kobj; @@ - container_of(a, struct device, kobj) + kobj_to_dev(a) //</smpl> Signed-off-by:
Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by:
-
Amitoj Kaur Chawla authored
Convert a call to init_timer and accompanying intializations of the timer's data and function fields to a call to setup_timer. The Coccinelle semantic patch that fixes this problem is as follows: // <smpl> @@ expression t,f,d; @@ -init_timer(&t); +setup_timer(&t,f,d); ... -t.data = d; -t.function = f; // </smpl> Signed-off-by:
-
Amitoj Kaur Chawla authored
Convert a call to init_timer and accompanying intializations of the timer's data and function fields to a call to setup_timer. The Coccinelle semantic patch that fixes this problem is as follows: // <smpl> @@ expression t,f,d; @@ -init_timer(&t); +setup_timer(&t,f,d); -t.data = d; -t.function = f; // </smpl> Signed-off-by:
-
Amitoj Kaur Chawla authored
Convert a call to init_timer and accompanying intializations of the timer's data and function fields to a call to setup_timer. The Coccinelle semantic patch that fixes this problem is as follows: // <smpl> @@ expression t,f,d; @@ -init_timer(&t); +setup_timer(&t,f,d); -t.data = d; -t.function = f; // </smpl> Signed-off-by:
-
David S. Miller authored
Yangbo Lu says: ==================== gianfar: Add PTP support for ls1021a platform This patchset is to enable ptp support for ls1021a platform. The endianness issue in gianfar driver and gianfar ptp driver must be fixed, and a 1588 timer node must be added into dts. Changes for v2: - Modified commit message - Added more reviewers ==================== Signed-off-by: -
Yangbo Lu authored
Fix endianness for the 64-bit hardware timestamp value with be64_to_cpu to support both PowerPC platforms and ARM platforms. Signed-off-by:
Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by:
-
Yangbo Lu authored
Replace get_of_u32 with standard helper function of_property_read_u32 since the latter can process cpu endianness. Signed-off-by:
-
Yangbo Lu authored
Add the 1588 timer node for ls1021a platform to support gianfar ptp driver. Signed-off-by:
-
Clemens Gruber authored
A bug was introduced in the merge commit b6333531 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net") The generic marvell_config_init (and therefore marvell_of_reg_init) is not called anymore for the Marvell 88E1510 (in net-next). This patch calls marvell_config_init and moves the specific init function for the 88E1510 below the marvell_config_init function to avoid adding a function predeclaration. Signed-off-by:
Clemens Gruber <clemens.gruber@pqgruber.com> Signed-off-by:
-
David S. Miller authored
Vivien Didelot says: ==================== net: dsa: add port VLAN dump operation The VLAN GetNext approach is specific to some switches and thus hard to implement for others. This patchset replaces it with a simpler port VLAN dump operation, similar to the corresponding FDB operation. The mv88e6xxx driver is the only one currently affected by the change. The documentation is updated accordingly. Note: this patchset uses http://www.spinics.net/lists/kernel/msg2186705.html ==================== Signed-off-by:
-
Vivien Didelot authored
The VLAN GetNext operation is specific to some switches, and thus can be complicated to implement for some drivers. Remove the support for the vlan_getnext/port_pvid_get approach in favor of the generic and simpler port_vlan_dump function. Signed-off-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
-
Vivien Didelot authored
Remove the port_pvid_get and vlan_getnext functions in favor of a simpler mv88e6xxx_port_vlan_dump function. Signed-off-by:
-
Vivien Didelot authored
Similar to port_fdb_dump, add a port_vlan_dump function to DSA drivers which gets passed the switchdev VLAN object and callback. This function, if implemented, takes precedence over the soon legacy vlan_getnext/port_pvid_get approach. Signed-off-by:
-
David S. Miller authored
Jiri Benc says: ==================== vxlan: consolidate rx handling Currently, vxlan_rcv is just called at the end of vxlan_udp_encap_recv, continuing the rx processing where vxlan_udp_encap_recv left it. There's no clear border between those two functions. This patchset moves vxlan_udp_encap_recv and vxlan_rcv into a single function. This also allows to do some simplification in error path. The VXLAN-GPE implementation that will follow up this set can be seen at: https://github.com/jbenc/linux-vxlan/commits/master ==================== Signed-off-by:
-
Jiri Benc authored
Now when the packet is scrubbed early, the metadata_dst can be assigned to the skb as soon as it is allocated. This simplifies the error cleanup path, as the dst will be freed by kfree_skb. It is also not necessary to pass it as a parameter to functions anymore. Signed-off-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
-
Jiri Benc authored
Now when both vxlan_udp_encap_recv and vxlan_rcv are much shorter, combine them into a single function. Signed-off-by:
-
Jiri Benc authored
It simplifies the vxlan_rcv function. Signed-off-by:
-
Jiri Benc authored
This code will be different for VXLAN-GPE, so move it to a separate function. It will also make the rx path less spaghetti-like. Signed-off-by:
-
Jiri Benc authored
Now when the packet is scrubbed early, skb->mark can be set in the GBP handling code. Signed-off-by:
-
David S. Miller authored
Cong Wang says: ==================== net_sched: add network namespace support for tc actions This patchset adds network namespace support for tc actions. v2: * pull the first patch into net-next * reduce code duplication by introducing more helper functions ==================== Signed-off-by: -
WANG Cong authored
Currently tc actions are stored in a per-module hashtable, therefore are visible to all network namespaces. This is probably the last part of the tc subsystem which is not aware of netns now. This patch makes them per-netns, several tc action API's need to be adjusted for this. The tc action API code is ugly due to historical reasons, we need to refactor that code in the future. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Acked-by:
Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
-
WANG Cong authored
We only release the memory of the hashtable itself, not its entries inside. This is not a problem yet since we only call it in module release path, and module is refcount'ed by actions. This would be a problem after we move the per module hinfo into per netns in the latter patch. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
-
Guillaume Nault authored
* Split big conditional statement. * Check (data.length <= CCP_MAX_OPTION_LENGTH) only once. * Don't read ccp_option[1] if not initialised. Reading uninitialised ccp_option[1] was harmless, because this could only happen when data.length was 0 or 1. So even then, we couldn't pass the (ccp_option[1] < 2 || ccp_option[1] > data.length) test anyway. Signed-off-by:
Guillaume Nault <g.nault@alphalink.fr> Signed-off-by:
-
Arnd Bergmann authored
When CONFIG_GENEVE is built as a loadable module, and bnx2x is built-in, we get this link error: drivers/net/built-in.o: In function `bnx2x_open': :(.text+0x33322): undefined reference to `geneve_get_rx_port' drivers/net/built-in.o: In function `bnx2x_sp_rtnl_task': :(.text+0x3e632): undefined reference to `geneve_get_rx_port' This avoids the problem by adding a separate Kconfig symbol named CONFIG_BNX2X_GENEVE that is only enabled when the code is reachable from the driver. This is the same trick that BNX2X does for VXLAN support, and is similar to how I40E handles both. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: 883ce97d ("bnx2x: Add Geneve inner-RSS support") Acked-By:
-
- 24 Feb, 2016 1 commit
-
-
David S. Miller authored
Claudiu Manoil says: ==================== gianfar: xmit() improvements Remove redundant operations, improve code locality and maintainability. Thanks. V2: Updated first patch to not touch existing wmb(). ==================== Signed-off-by:
-
