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2016-11-21bridge: mcast: add MLDv2 querier supportNikolay Aleksandrov5-22/+113
This patch adds basic support for MLDv2 queries, the default is MLDv1 as before. A new multicast option - multicast_mld_version, adds the ability to change it between 1 and 2 via netlink and sysfs. The MLD option is disabled if CONFIG_IPV6 is disabled. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21bridge: mcast: add IGMPv3 query supportNikolay Aleksandrov5-18/+98
This patch adds basic support for IGMPv3 queries, the default is IGMPv2 as before. A new multicast option - multicast_igmp_version, adds the ability to change it between 2 and 3 via netlink and sysfs. The option struct member is in a 4 byte hole in net_bridge. There also a few minor style adjustments in br_multicast_new_group and br_multicast_add_group. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21driver: macvlan: Remove duplicated IFF_UP condition check in macvlan_forward_sourceGao Feng1-2/+1
The function macvlan_forward_source_one has already checked the flag IFF_UP, so needn't check it outside in macvlan_forward_source too. Signed-off-by: Gao Feng <gfree.wind@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21mlx4: avoid unnecessary dirtying of critical fieldsEric Dumazet1-17/+30
While stressing a 40Gbit mlx4 NIC with busy polling, I found false sharing in mlx4 driver that can be easily avoided. This patch brings an additional 7 % performance improvement in UDP_RR workload. 1) If we received no frame during one mlx4_en_process_rx_cq() invocation, no need to call mlx4_cq_set_ci() and/or dirty ring->cons 2) Do not refill rx buffers if we have plenty of them. This avoids false sharing and allows some bulk/batch optimizations. Page allocator and its locks will thank us. Finally, mlx4_en_poll_rx_cq() should not return 0 if it determined cpu handling NIC IRQ should be changed. We should return budget-1 instead, to not fool net_rx_action() and its netdev_budget. v2: keep AVG_PERF_COUNTER(... polled) even if polled is 0 Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21bnx2: use READ_ONCE() instead of barrier()Eric Dumazet1-12/+5
barrier() is a big hammer compared to READ_ONCE(), and requires comments explaining what is protected. READ_ONCE() is more precise and compiler should generate better overall code. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21udp: avoid one cache line miss in recvmsg()Eric Dumazet2-2/+4
UDP_SKB_CB(skb)->partial_cov is located at offset 66 in skb, requesting a cold cache line being read in cpu cache. We can avoid this cache line miss for UDP sockets, as partial_cov has a meaning only for UDPLite. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21bpf: add __must_check attributes to refcount manipulating helpersDaniel Borkmann1-5/+7
Helpers like bpf_prog_add(), bpf_prog_inc(), bpf_map_inc() can fail with an error, so make sure the caller properly checks their return value and not just ignores it, which could worst-case lead to use after free. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21bpf, mlx5: drop priv->xdp_prog reference on netdev cleanupDaniel Borkmann1-0/+3
mlx5e_xdp_set() is currently the only place where we drop reference on the prog sitting in priv->xdp_prog when it's exchanged by a new one. We also need to make sure that we eventually release that reference, for example, in case the netdev is dismantled, otherwise we leak the program. Fixes: 86994156c736 ("net/mlx5e: XDP fast RX drop bpf programs support") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21bpf, mlx5: fix various refcount issues in mlx5e_xdp_setDaniel Borkmann1-4/+13
There are multiple issues in mlx5e_xdp_set(): 1) The batched bpf_prog_add() is currently not checked for errors. When doing so, it should be done at an earlier point in time to makes sure that we cannot fail anymore at the time we want to set the program for each channel. The batched refs short-cut can only be performed when we don't need to perform a reset for changing the rq type and the device was in opened state. In case the device was not in opened state, then the next mlx5e_open_locked() will aquire the refs from the control prog via mlx5e_create_rq(), same when we need to perform a reset. 2) When swapping the priv->xdp_prog, then no extra reference count must be taken since we got that from call path via dev_change_xdp_fd() already. Otherwise, we'd never be able to release the program. Also, bpf_prog_add() without checking the return code could fail. Fixes: 86994156c736 ("net/mlx5e: XDP fast RX drop bpf programs support") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-21bpf, mlx5: fix mlx5e_create_rq taking reference on progDaniel Borkmann2-4/+10
In mlx5e_create_rq(), when creating a new queue, we call bpf_prog_add() but without checking the return value. bpf_prog_add() can fail since 92117d8443bc ("bpf: fix refcnt overflow"), so we really must check it. Take the reference right when we assign it to the rq from priv->xdp_prog, and just drop the reference on error path. Destruction in mlx5e_destroy_rq() looks good, though. Fixes: 86994156c736 ("net/mlx5e: XDP fast RX drop bpf programs support") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20net: dsa: mv88e6xxx: Hold the mutex while freeing g1 interruptsAndrew Lunn1-1/+4
Freeing interrupts requires switch register access to mask the interrupts. Hence we must hold the register mutex. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20net: dsa: mv88e6xxx: Fix releasing for the global2 interruptsAndrew Lunn2-10/+19
It is not possible to use devm_request_threaded_irq() because we have two stacked interrupt controllers in one device. The lower interrupt controller cannot be removed until the upper is fully removed. This happens too late with the devm API, resulting in error messages about removing a domain while there is still an active interrupt. Swap to using request_threaded_irq() and manage the release of the interrupt manually. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20net: dsa: mv88e6xxx: Fix cleanup on error for g1 interrupt setupAndrew Lunn1-11/+20
On error, remask the interrupts, release all maps, and remove the domain. This cannot be done using the mv88e6xxx_g1_irq_free() because some of these actions are not idempotent. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20net: dsa: mv88e6xxx: Mask g1 interrupts and free interruptAndrew Lunn1-0/+7
Fix the g1 interrupt free code such that is masks any further interrupts, and then releases the interrupt. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20net: dsa: mv88e6xxx: Fix unconditional irq freeingAndrew Lunn1-5/+8
Trying to remove an IRQ domain that was not created results in an Opps. Add the necessary checks that the irqs were created before freeing them. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-20net: dsa: mv88e6xxx: Fix typos when removing g1 interruptsAndrew Lunn1-2/+2
Simple typos, s/g2/g1/ Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19net: fix bogus cast in skb_pagelen() and use unsigned variablesAlexey Dobriyan3-5/+5
1) cast to "int" is unnecessary: u8 will be promoted to int before decrementing, small positive numbers fit into "int", so their values won't be changed during promotion. Once everything is int including loop counters, signedness doesn't matter: 32-bit operations will stay 32-bit operations. But! Someone tried to make this loop smart by making everything of the same type apparently in an attempt to optimise it. Do the optimization, just differently. Do the cast where it matters. :^) 2) frag size is unsigned entity and sum of fragments sizes is also unsigned. Make everything unsigned, leave no MOVSX instruction behind. add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-4 (-4) function old new delta skb_cow_data 835 834 -1 ip_do_fragment 2549 2548 -1 ip6_fragment 3130 3128 -2 Total: Before=154865032, After=154865028, chg -0.00% Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19netlink: smaller nla_attr_minlen tableAlexey Dobriyan1-1/+1
Length of a netlink attribute may be u16 but lengths of basic attributes are much smaller, so small we can save 16 bytes of .rodata and pocket change inside .text. 16-bit is worse on x86-64 than 8-bit because of operand size override prefix. add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-19 (-19) function old new delta validate_nla 418 417 -1 nla_policy_len 66 64 -2 nla_attr_minlen 32 16 -16 Total: Before=154865051, After=154865032, chg -0.00% Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19netlink: use "unsigned int" in nla_next()Alexey Dobriyan1-1/+1
->nla_len is unsigned entity (it's length after all) and u16, thus it can't overflow when being aligned into int/unsigned int. (nlmsg_next has the same code, but I didn't yet convince myself it is correct to do so). There is pointer arithmetic in this function and offset being unsigned is better: add/remove: 0/0 grow/shrink: 1/64 up/down: 5/-309 (-304) function old new delta nl80211_set_wiphy 1444 1449 +5 team_nl_cmd_options_set 997 995 -2 tcf_em_tree_validate 872 870 -2 switchdev_port_bridge_setlink 352 350 -2 switchdev_port_br_afspec 312 310 -2 rtm_to_fib_config 428 426 -2 qla4xxx_sysfs_ddb_set_param 2193 2191 -2 qla4xxx_iface_set_param 4470 4468 -2 ovs_nla_free_flow_actions 152 150 -2 output_userspace 518 516 -2 ... nl80211_set_reg 654 649 -5 validate_scan_freqs 148 142 -6 validate_linkmsg 288 282 -6 nl80211_parse_connkeys 489 483 -6 nlattr_set 231 224 -7 nf_tables_delsetelem 267 260 -7 do_setlink 3416 3408 -8 netlbl_cipsov4_add_std 1672 1659 -13 nl80211_parse_sched_scan 2902 2888 -14 nl80211_trigger_scan 1738 1720 -18 do_execute_actions 2821 2738 -83 Total: Before=154865355, After=154865051, chg -0.00% Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19net: make struct napi_alloc_cache::skb_count unsigned intAlexey Dobriyan1-1/+1
size_t is way too much for an integer not exceeding 64. Space savings: 10 bytes! add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-10 (-10) function old new delta napi_consume_skb 165 163 -2 __kfree_skb_flush 56 53 -3 __kfree_skb_defer 97 92 -5 Total: Before=154865639, After=154865629, chg -0.00% Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19af_packet: Use virtio_net_hdr_from_skb() directly.Jarno Rajahalme1-12/+4
Remove static function __packet_rcv_vnet(), which only called virtio_net_hdr_from_skb() and BUG()ged out if an error code was returned. Instead, call virtio_net_hdr_from_skb() from the former call sites of __packet_rcv_vnet() and actually use the error handling code that is already there. Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19af_packet: Use virtio_net_hdr_to_skb().Jarno Rajahalme1-48/+3
Use the common virtio_net_hdr_to_skb() instead of open coding it. Other call sites were changed by commit fd2a0437dc, but this one was missed, maybe because it is split in two parts of the source code. Interim comparisons of 'vnet_hdr->gso_type' still work as both the vnet_hdr and skb notion of gso_type is zero when there is no gso. Fixes: fd2a0437dc ("virtio_net: introduce virtio_net_hdr_{from,to}_skb") Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19virtio_net: Do not clear memory for struct virtio_net_hdr twice.Jarno Rajahalme3-5/+2
virtio_net_hdr_from_skb() clears the memory for the header, so there is no point for the callers to do the same. Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19virtio_net.h: Fix comment.Jarno Rajahalme1-1/+1
Fix incorrent comment after the final #endif. Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-19virtio_net: Simplify call sites for virtio_net_hdr_{from, to}_skb().Jarno Rajahalme2-8/+5
No point storing the return value of virtio_net_hdr_to_skb() or virtio_net_hdr_from_skb() to a variable when the value is used only once as a boolean in an immediately following if statement. Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18cxgb4: Allocate Tx queues dynamicallyHariprasad Shenai11-82/+287
Allocate resources dynamically for Upper layer driver's (ULD) like cxgbit, iw_cxgb4, cxgb4i and chcr. The resources allocated include Tx queues which are allocated when ULD register with cxgb4 driver and freed while un-registering. The Tx queues which are shared by ULD shall be allocated by first registering driver and un-allocated by last unregistering driver. Signed-off-by: Atul Gupta <atul.gupta@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18liquidio CN23XX: bitwise vs logical AND typoDan Carpenter1-1/+1
We obviously intended a bitwise AND here, not a logical one. Fixes: 8c978d059224 ("liquidio CN23XX: Mailbox support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18lan78xx: relocate mdix setting to phy driverWoojung Huh2-71/+38
Relocate mdix code to phy driver to be called at config_init(). Signed-off-by: Woojung Huh <woojung.huh@microchip.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net: dsa: mv88e6xxx: Select IRQ_DOMAINFlorian Fainelli1-0/+1
Some architectures may not define IRQ_DOMAIN (like m32r), fixes undefined references to IRQ_DOMAIN functions. Fixes: dc30c35be720 ("net: dsa: mv88e6xxx: Implement interrupt support.") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net: marvell: Allow drivers to be built with COMPILE_TESTFlorian Fainelli1-4/+7
All Marvell Ethernet drivers actually build fine with COMPILE_TEST with a few warnings. We need to add a few HAS_DMA dependencies to fix linking failures on problematic architectures like m32r. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18bus: mvebu-bus: Provide inline stub for mvebu_mbus_get_dram_win_infoFlorian Fainelli1-0/+8
In preparation for allowing CONFIG_MVNETA_BM to build with COMPILE_TEST, provide an inline stub for mvebu_mbus_get_dram_win_info(). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net: fsl: Allow most drivers to be built with COMPILE_TESTFlorian Fainelli1-1/+3
There are only a handful of Freescale Ethernet drivers that don't actually build with COMPILE_TEST: * FEC, for which we would need to define a default register layout if no supported architecture is defined * UCC_GETH which depends on PowerPC cpm.h header (which could be moved to a generic location) * GIANFAR needs to depend on HAS_DMA to fix linking failures on some architectures (like m32r) We need to fix an unmet dependency to get there though: warning: (FSL_XGMAC_MDIO) selects OF_MDIO which has unmet direct dependencies (OF && PHYLIB) which would result in CONFIG_OF_MDIO=[ym] without CONFIG_OF to be set. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net: gianfar_ptp: Rename FS bit to FIPERSTFlorian Fainelli1-2/+2
FS is a global symbol used by the x86 32-bit architecture, fixes builds re-definitions: >> drivers/net/ethernet/freescale/gianfar_ptp.c:75:0: warning: "FS" >> redefined #define FS (1<<28) /* FIPER start indication */ In file included from arch/x86/include/uapi/asm/ptrace.h:5:0, from arch/x86/include/asm/ptrace.h:6, from arch/x86/include/asm/math_emu.h:4, from arch/x86/include/asm/processor.h:11, from include/linux/mutex.h:19, from include/linux/kernfs.h:13, from include/linux/sysfs.h:15, from include/linux/kobject.h:21, from include/linux/device.h:17, from drivers/net/ethernet/freescale/gianfar_ptp.c:23: arch/x86/include/uapi/asm/ptrace-abi.h:15:0: note: this is the location of the previous definition #define FS 9 Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18amd-xgbe: Update connection validation for backplane modeLendacky, Thomas1-0/+2
Update the connection type enumeration for backplane mode and return an error when there is a mismatch between the mode and the connection type. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net: phy: Add downshift get/set support in Microsemi PHYs driverRaju Lakkaraju1-0/+100
Implements the phy tunable function pointers and implement downshift functionality for MSCC PHYs. Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18ethtool: Core impl for ETHTOOL_PHY_DOWNSHIFT tunableRaju Lakkaraju1-0/+6
Adding validation support for the ETHTOOL_PHY_DOWNSHIFT. Functional implementation needs to be done in the individual PHY drivers. Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18ethtool: (uapi) Add ETHTOOL_PHY_DOWNSHIFT to PHY tunablesRaju Lakkaraju1-1/+4
For operation in cabling environments that are incompatible with 1000BASE-T, PHY device may provide an automatic link speed downshift operation. When enabled, the device automatically changes its 1000BASE-T auto-negotiation to the next slower speed after a configured number of failed attempts at 1000BASE-T. This feature is useful in setting up in networks using older cable installations that include only pairs A and B, and not pairs C and D. Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com> Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18ethtool: Implements ETHTOOL_PHY_GTUNABLE/ETHTOOL_PHY_STUNABLERaju Lakkaraju2-0/+94
Adding get_tunable/set_tunable function pointer to the phy_driver structure, and uses these function pointers to implement the ETHTOOL_PHY_GTUNABLE/ETHTOOL_PHY_STUNABLE ioctls. Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18ethtool: (uapi) Add ETHTOOL_PHY_GTUNABLE and ETHTOOL_PHY_STUNABLERaju Lakkaraju1-1/+14
Defines a generic API to get/set phy tunables. The API is using the existing ethtool_tunable/tunable_type_id types which is already being used for mac level tunables. Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5e: Expose PCIe statistics to ethtoolGal Pressman3-1/+72
This patch exposes two groups of PCIe counters: - Performance counters. - Timers and states counters. Queried with ethtool -S <devname>. Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5: Add MPCNT register infrastructureGal Pressman3-0/+99
Add the needed infrastructure for future use of MPCNT register. Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5: Set driver version into firmwareHuy Nguyen1-0/+37
If driver_version capability bit is enabled, set driver version to firmware after the init HCA command, for display purposes. Example of driver version: "Linux,mlx5_core,3.0-1" Signed-off-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5: Set driver version infrastructureSaeed Mahameed1-1/+21
Add driver_version capability bit is enabled, and set driver version command in mlx5_ifc firmware header. The only purpose of this command is to store a driver version/OS string in FW to be reported and displayed in various management systems, such as IPMI/BMC. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5e: Add port module event counters to ethtool statsHuy Nguyen2-1/+39
Add port module event counters to ethtool -S command Signed-off-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5: Add handling for port module eventHuy Nguyen4-0/+97
For each asynchronous port module event: 1. print with ratelimit to the dmesg log 2. increment the corresponding event counter Signed-off-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5: Port module event hardware structuresHuy Nguyen3-1/+16
Add hardware structures and constants definitions needed for module events support. Signed-off-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18net/mlx5: Make the command interface cache more flexibleMohamad Haj Yahia2-83/+76
Add more cache command size sets and more entries for each set based on the current commands set different sizes and commands frequency. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18sfc: remove Software TSOEdward Cree6-211/+154
It gives no advantage over GSO now that xmit_more exists. If we find ourselves unable to handle a TSO skb (because our TXQ doesn't have a TSOv2 context and the NIC doesn't support TSOv1), hand it back to GSO. Also do that if the TSO handler fails with EINVAL for any other reason. As Falcon-architecture NICs don't support any firmware-assisted TSO, they no longer advertise TSO feature flags at all. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18sfc: handle failure to allocate TSOv2 contextsEdward Cree1-16/+24
If we fail to init the TXQ because of insufficient TSOv2 contexts, try again with TSOv2 disabled. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18sfc: Firmware-Assisted TSO version 2Bert Kenward11-768/+1035
Add support for FATSOv2 to the driver. FATSOv2 offloads far more of the task of TCP segmentation to the firmware, such that we now just pass a single super-packet to the NIC. This means TSO has a great deal in common with a normal DMA transmit, apart from adding a couple of option descriptors. NIC-specific checks have been moved off the fast path and in to initialisation where possible. This also moves FATSOv1/SWTSO to a new file (tx_tso.c). The end of transmit and some error handling is now outside TSO, since it is common with other code. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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