- 29 Mar, 2015 27 commits
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Guenter Roeck authored
Add support for manipulating switch fdb entries by pointing to the ndo_fdb functions implemented for mv88e6xxxx. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
No vlan support at this time. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Provide callbacks for ndo_fdb_add, ndo_fdb_del, and ndo_fdb_dump. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Bridge support is similar for all chips supported by the mv88e6xxx code, so add the code there. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
This will simplify adding offloaded bridge support later on. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
This prepares the driver for hardware bridging. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Split mv88e6xxx_reg_read and mv88e6xxx_reg_write into two functions each, one to acquire smi_mutex and one to get struct mii_bus *bus from struct dsa_switch *ds and to call the actual read/write function. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Datasheet says that the Message Port bit should not be set for the CPU port. Having it set causes DSA tagged packets to be sent to the CPU port roughly every 30 seconds. Those packets are the same as real packets forwarded between switch ports if the switch is configured for switching between multiple ports. The packets are then bridged by the software bridge, resulting in duplicated packets on the network. Reported-by:
Andrew Lunn <andrew@lunn.ch> Cc: Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Provide mv88e6xxx_setup_port_common() for common port initialization. Currently only write Port 1 Control and VLAN configuration since this will be needed for hardware bridging. More can be added later if desired/needed. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Code used and needed in mv886xxx.c should be initialized there as well, so factor it out from the individual initialization files. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Haiyang Zhang authored
The vmbus_are_subchannels_present() also involves opening the channels, which may be too early at this point. Checking for subchannels is not necessary here. So this patch removes it. Subchannels will be opened when offer messages arrive. Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Uwe Kleine-König authored
Since 39b2bbe3 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output. Simplify accordingly. Moreover use devm_gpiod_get_index_optional for still simpler handling. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Haiyang Zhang authored
With this patch, we can send out multiple RNDIS data packets in one send buffer slot and one VMBus message. It reduces the overhead associated with VMBus messages. Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for your net-next tree. Basically, nf_tables updates to add the set extension infrastructure and finish the transaction for sets from Patrick McHardy. More specifically, they are: 1) Move netns to basechain and use recently added possible_net_t, from Patrick McHardy. 2) Use LOGLEVEL_<FOO> from nf_log infrastructure, from Joe Perches. 3) Restore nf_log_trace that was accidentally removed during conflict resolution. 4) nft_queue does not depend on NETFILTER_XTABLES, starting from here all patches from Patrick McHardy. 5) Use raw_smp_processor_id() in nft_meta. Then, several patches to prepare ground for the new set extension infrastructure: 6) Pass object length to the hash callback in rhashtable as needed by the new set extension infrastructure. 7) Cleanup patch to restore struct nft_hash as wrapper for struct rhashtable 8) Another small source code readability cleanup for nft_hash. 9) Convert nft_hash to rhashtable callbacks. And finally... 10) Add the new set extension infrastructure. 11) Convert the nft_hash and nft_rbtree sets to use it. 12) Batch set element release to avoid several RCU grace period in a row and add new function nft_set_elem_destroy() to consolidate set element release. 13) Return the set extension data area from nft_lookup. 14) Refactor existing transaction code to add some helper functions and document it. 15) Complete the set transaction support, using similar approach to what we already use, to activate/deactivate elements in an atomic fashion. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Ying Xue says: ==================== tipc: fix two corner issues The patch set aims at resolving the following two critical issues: Patch #1: Resolve a deadlock which happens while all links are reset Patch #2: Correct a mistake usage of RCU lock which is used to protect node list ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ying Xue authored
TIPC node hash node table is protected with rcu lock on read side. tipc_node_find() is used to look for a node object with node address through iterating the hash node table. As the entire process of what tipc_node_find() traverses the table is guarded with rcu read lock, it's safe for us. However, when callers use the node object returned by tipc_node_find(), there is no rcu read lock applied. Therefore, this is absolutely unsafe for callers of tipc_node_find(). Now we introduce a reference counter for node structure. Before tipc_node_find() returns node object to its caller, it first increases the reference counter. Accordingly, after its caller used it up, it decreases the counter again. This can prevent a node being used by one thread from being freed by another thread. Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Reviewed-by:
Jon Maloy <jon.maloy@ericson.com> Signed-off-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ying Xue authored
[ 60.988363] ====================================================== [ 60.988754] [ INFO: possible circular locking dependency detected ] [ 60.989152] 3.19.0+ #194 Not tainted [ 60.989377] ------------------------------------------------------- [ 60.989781] swapper/3/0 is trying to acquire lock: [ 60.990079] (&(&n_ptr->lock)->rlock){+.-...}, at: [<ffffffffa0006dca>] tipc_link_retransmit+0x1aa/0x240 [tipc] [ 60.990743] [ 60.990743] but task is already holding lock: [ 60.991106] (&(&bclink->lock)->rlock){+.-...}, at: [<ffffffffa00004be>] tipc_bclink_lock+0x8e/0xa0 [tipc] [ 60.991738] [ 60.991738] which lock already depends on the new lock. [ 60.991738] [ 60.992174] [ 60.992174] the existing dependency chain (in reverse order) is: [ 60.992174] -> #1 (&(&bclink->lock)->rlock){+.-...}: [ 60.992174] [<ffffffff810a9c0c>] lock_acquire+0x9c/0x140 [ 60.992174] [<ffffffff8179c41f>] _raw_spin_lock_bh+0x3f/0x50 [ 60.992174] [<ffffffffa00004be>] tipc_bclink_lock+0x8e/0xa0 [tipc] [ 60.992174] [<ffffffffa0000f57>] tipc_bclink_add_node+0x97/0xf0 [tipc] [ 60.992174] [<ffffffffa0011815>] tipc_node_link_up+0xf5/0x110 [tipc] [ 60.992174] [<ffffffffa0007783>] link_state_event+0x2b3/0x4f0 [tipc] [ 60.992174] [<ffffffffa00193c0>] tipc_link_proto_rcv+0x24c/0x418 [tipc] [ 60.992174] [<ffffffffa0008857>] tipc_rcv+0x827/0xac0 [tipc] [ 60.992174] [<ffffffffa0002ca3>] tipc_l2_rcv_msg+0x73/0xd0 [tipc] [ 60.992174] [<ffffffff81646e66>] __netif_receive_skb_core+0x746/0x980 [ 60.992174] [<ffffffff816470c1>] __netif_receive_skb+0x21/0x70 [ 60.992174] [<ffffffff81647295>] netif_receive_skb_internal+0x35/0x130 [ 60.992174] [<ffffffff81648218>] napi_gro_receive+0x158/0x1d0 [ 60.992174] [<ffffffff81559e05>] e1000_clean_rx_irq+0x155/0x490 [ 60.992174] [<ffffffff8155c1b7>] e1000_clean+0x267/0x990 [ 60.992174] [<ffffffff81647b60>] net_rx_action+0x150/0x360 [ 60.992174] [<ffffffff8105ec43>] __do_softirq+0x123/0x360 [ 60.992174] [<ffffffff8105f12e>] irq_exit+0x8e/0xb0 [ 60.992174] [<ffffffff8179f9f5>] do_IRQ+0x65/0x110 [ 60.992174] [<ffffffff8179da6f>] ret_from_intr+0x0/0x13 [ 60.992174] [<ffffffff8100de9f>] arch_cpu_idle+0xf/0x20 [ 60.992174] [<ffffffff8109dfa6>] cpu_startup_entry+0x2f6/0x3f0 [ 60.992174] [<ffffffff81033cda>] start_secondary+0x13a/0x150 [ 60.992174] -> #0 (&(&n_ptr->lock)->rlock){+.-...}: [ 60.992174] [<ffffffff810a8f7d>] __lock_acquire+0x163d/0x1ca0 [ 60.992174] [<ffffffff810a9c0c>] lock_acquire+0x9c/0x140 [ 60.992174] [<ffffffff8179c41f>] _raw_spin_lock_bh+0x3f/0x50 [ 60.992174] [<ffffffffa0006dca>] tipc_link_retransmit+0x1aa/0x240 [tipc] [ 60.992174] [<ffffffffa0001e11>] tipc_bclink_rcv+0x611/0x640 [tipc] [ 60.992174] [<ffffffffa0008646>] tipc_rcv+0x616/0xac0 [tipc] [ 60.992174] [<ffffffffa0002ca3>] tipc_l2_rcv_msg+0x73/0xd0 [tipc] [ 60.992174] [<ffffffff81646e66>] __netif_receive_skb_core+0x746/0x980 [ 60.992174] [<ffffffff816470c1>] __netif_receive_skb+0x21/0x70 [ 60.992174] [<ffffffff81647295>] netif_receive_skb_internal+0x35/0x130 [ 60.992174] [<ffffffff81648218>] napi_gro_receive+0x158/0x1d0 [ 60.992174] [<ffffffff81559e05>] e1000_clean_rx_irq+0x155/0x490 [ 60.992174] [<ffffffff8155c1b7>] e1000_clean+0x267/0x990 [ 60.992174] [<ffffffff81647b60>] net_rx_action+0x150/0x360 [ 60.992174] [<ffffffff8105ec43>] __do_softirq+0x123/0x360 [ 60.992174] [<ffffffff8105f12e>] irq_exit+0x8e/0xb0 [ 60.992174] [<ffffffff8179f9f5>] do_IRQ+0x65/0x110 [ 60.992174] [<ffffffff8179da6f>] ret_from_intr+0x0/0x13 [ 60.992174] [<ffffffff8100de9f>] arch_cpu_idle+0xf/0x20 [ 60.992174] [<ffffffff8109dfa6>] cpu_startup_entry+0x2f6/0x3f0 [ 60.992174] [<ffffffff81033cda>] start_secondary+0x13a/0x150 [ 60.992174] [ 60.992174] other info that might help us debug this: [ 60.992174] [ 60.992174] Possible unsafe locking scenario: [ 60.992174] [ 60.992174] CPU0 CPU1 [ 60.992174] ---- ---- [ 60.992174] lock(&(&bclink->lock)->rlock); [ 60.992174] lock(&(&n_ptr->lock)->rlock); [ 60.992174] lock(&(&bclink->lock)->rlock); [ 60.992174] lock(&(&n_ptr->lock)->rlock); [ 60.992174] [ 60.992174] *** DEADLOCK *** [ 60.992174] [ 60.992174] 3 locks held by swapper/3/0: [ 60.992174] #0: (rcu_read_lock){......}, at: [<ffffffff81646791>] __netif_receive_skb_core+0x71/0x980 [ 60.992174] #1: (rcu_read_lock){......}, at: [<ffffffffa0002c35>] tipc_l2_rcv_msg+0x5/0xd0 [tipc] [ 60.992174] #2: (&(&bclink->lock)->rlock){+.-...}, at: [<ffffffffa00004be>] tipc_bclink_lock+0x8e/0xa0 [tipc] [ 60.992174] The correct the sequence of grabbing n_ptr->lock and bclink->lock should be that the former is first held and the latter is then taken, which exactly happened on CPU1. But especially when the retransmission of broadcast link is failed, bclink->lock is first held in tipc_bclink_rcv(), and n_ptr->lock is taken in link_retransmit_failure() called by tipc_link_retransmit() subsequently, which is demonstrated on CPU0. As a result, deadlock occurs. If the order of holding the two locks happening on CPU0 is reversed, the deadlock risk will be relieved. Therefore, the node lock taken in link_retransmit_failure() originally is moved to tipc_bclink_rcv() so that it's obtained before bclink lock. But the precondition of the adjustment of node lock is that responding to bclink reset event must be moved from tipc_bclink_unlock() to tipc_node_unlock(). Reviewed-by:
Erik Hugne <erik.hugne@ericsson.com> Signed-off-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Li RongQing authored
received is 0, no need to minus it and use "+=" to reassign it Signed-off-by:
Li RongQing <roy.qing.li@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Sathya Perla says: ==================== be2net: patch set Hi David, this patch set includes 2 feature additions to the be2net driver: Patch 1 sets up cpu affinity hints for be2net irqs using the cpumask_set_cpu_local_first() API that first picks the near numa cores and when they are exhausted, selects the far numa cores. Patch 2 setups up xps queue mapping for be2net's TXQs to avoid, by default, TX lock contention. Patch 3 just bumps up the driver version. Pls consider applying this patch set to the net-next queue. Thanks! ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sathya Perla authored
Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sathya Perla authored
This patch sets up xps queue mapping on load, so that TX traffic is steered to the queue whose irqs are being processed by the current cpu. This helps in avoiding TX lock contention. Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Padmanabh Ratnakar authored
This patch provides hints to irqbalance to map be2net IRQs to specific CPU cores. cpumask_set_cpu_local_first() is used, which first maps IRQs to near NUMA cores; when those cores are exhausted, IRQs are mapped to far NUMA cores. Signed-off-by:
Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
After commit 1fb6f159 ("tcp: add tcp_conn_request"), tcp_syn_flood_action() is no longer used from IPv6. We can make it static, by moving it above tcp_conn_request() Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
Octavian Purdila <octavian.purdila@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Wu Fengguang authored
drivers/net/ethernet/chelsio/cxgb4/cxgb4_fcoe.c:49:9-10: WARNING: return of 0/1 in function 'cxgb_fcoe_sof_eof_supported' with return type bool Return statements in functions returning bool should use true/false instead of 1/0. Generated by: scripts/coccinelle/misc/boolreturn.cocci CC: Varun Prakash <varun@chelsio.com> Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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WANG Cong authored
We should not commit the new ops until we finish all the setup, otherwise we have to NULL it on failure. Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 27 Mar, 2015 12 commits
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David S. Miller authored
Petri Gynther says: ==================== net: bcmgenet: multiple Rx queues support Final patch set to add support for multiple Rx queues: 1. remove priv->int0_mask and priv->int1_mask 2. modify Tx ring int_enable and int_disable vectors 3. simplify bcmgenet_init_dma() 4. tweak init_umac() 5. rework Tx NAPI code 6. rework Rx NAPI code 7. add support for multiple Rx queues ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Petri Gynther authored
Add support for multiple Rx queues: 1. Add NAPI context per Rx queue 2. Modify Rx interrupt and Rx NAPI code to handle multiple Rx queues Signed-off-by:
Petri Gynther <pgynther@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Petri Gynther authored
Introduce new bcmgenet functions to handle the NAPI calls to: netif_napi_add() napi_enable() napi_disable() netif_napi_del() Signed-off-by:
Petri Gynther <pgynther@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Petri Gynther authored
Introduce new bcmgenet functions to handle the NAPI calls to: netif_napi_add() napi_enable() napi_disable() netif_napi_del() Signed-off-by:
Petri Gynther <pgynther@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Petri Gynther authored
Use more meaningful variable names int0_enable and int1_enable when enabling bcmgenet interrupts. For Rx default queue interrupts, use: UMAC_IRQ_RXDMA_BDONE | UMAC_IRQ_RXDMA_PDONE For Tx default queue interrupts, use: UMAC_IRQ_TXDMA_BDONE | UMAC_IRQ_TXDMA_PDONE Signed-off-by:
Petri Gynther <pgynther@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Petri Gynther authored
Do the two kcalloc() calls first, before proceeding into Rx/Tx DMA init. Makes the error case handling much simpler. Signed-off-by:
Petri Gynther <pgynther@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Jaedon Shin <jaedon.shin@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Petri Gynther authored
Remove unnecessary function parameter priv. Use ring->priv instead. Signed-off-by:
Petri Gynther <pgynther@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Petri Gynther authored
Remove unused priv->int0_mask and priv->int1_mask. Signed-off-by:
Petri Gynther <pgynther@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Iyappan Subramanian says: ==================== drivers: net: xgene: Add separate tx completion ring SGMII based 1GbE and 10GbE interfaces support multiple interrupts. Adding separate tx completion descriptor ring and associating a dedicated irq for the TX completion. ==================== Signed-off-by:
Iyappan Subramanian <isubramanian@apm.com> Signed-off-by:
Keyur Chudgar <kchudgar@apm.com>
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Iyappan Subramanian authored
- Added wrapper functions around napi_add, napi_del, napi_enable and napi_disable - Moved platform_get_irq function call after reading phy_mode - Associating the new irq to tx completion for the supported ethernet interfaces Signed-off-by:
Iyappan Subramanian <isubramanian@apm.com> Signed-off-by:
Keyur Chudgar <kchudgar@apm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Iyappan Subramanian authored
Signed-off-by:
Iyappan Subramanian <isubramanian@apm.com> Signed-off-by:
Keyur Chudgar <kchudgar@apm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Iyappan Subramanian authored
Signed-off-by:
Iyappan Subramanian <isubramanian@apm.com> Signed-off-by:
Keyur Chudgar <kchudgar@apm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 26 Mar, 2015 1 commit
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Patrick McHardy authored
Set elements are the last object type not supporting transaction support. Implement similar to the existing rule transactions: The global transaction counter keeps track of two generations, current and next. Each element contains a bitmask specifying in which generations it is inactive. New elements start out as inactive in the current generation and active in the next. On commit, the previous next generation becomes the current generation and the element becomes active. The bitmask is then cleared to indicate that the element is active in all future generations. If the transaction is aborted, the element is removed from the set before it becomes active. When removing an element, it gets marked as inactive in the next generation. On commit the next generation becomes active and the therefor the element inactive. It is then taken out of then set and released. On abort, the element is marked as active for the next generation again. Lookups ignore elements not active in the current generation. The current set types (hash/rbtree) both use a field in the extension area to store the generation mask. This (currently) does not require any additional memory since we have some free space in there. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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