- 26 Oct, 2012 3 commits
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Neil Horman authored
Currently sctp allows for the optional use of md5 of sha1 hmac algorithms to generate cookie values when establishing new connections via two build time config options. Theres no real reason to make this a static selection. We can add a sysctl that allows for the dynamic selection of these algorithms at run time, with the default value determined by the corresponding crypto library availability. This comes in handy when, for example running a system in FIPS mode, where use of md5 is disallowed, but SHA1 is permitted. Note: This new sysctl has no corresponding socket option to select the cookie hmac algorithm. I chose not to implement that intentionally, as RFC 6458 contains no option for this value, and I opted not to pollute the socket option namespace. Change notes: v2) * Updated subject to have the proper sctp prefix as per Dave M. * Replaced deafult selection options with new options that allow developers to explicitly select available hmac algs at build time as per suggestion by Vlad Y. Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> CC: Vlad Yasevich <vyasevich@gmail.com> CC: "David S. Miller" <davem@davemloft.net> CC: netdev@vger.kernel.org Acked-by:
Vlad Yasevich <vyasevich@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Daniel Borkmann authored
This tiny patch removes two unused err assignments. In those two cases the err variable is either overwritten with another value at a later point in time without having read the previous assigment, or it is assigned and the function returns without using/reading err after the assignment. Signed-off-by:
Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by:
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hayeswang authored
Enable ALDPS function to save power when link down. Note that the feature should be set after the other PHY settings. And the firmware is necessary. Don't enable it without loading the firmware. None of the firmware-free chipsets support ALDPS. Neither do the RTL8168d/8111d. For 8136 series, make sure the ALDPS is disabled before loading the firmware. For 8168 series, the ALDPS would be disabled automatically when loading firmware. You must not disable it directly. Signed-off-by:
Hayes Wang <hayeswang@realtek.com> Acked-by:
Francois Romieu <romieu@fr.zoreil.com> Signed-off-by:
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- 23 Oct, 2012 37 commits
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Pavel Emelyanov authored
Make it simple -- just put new nlattr with just sk->sk_shutdown bits. Signed-off-by:
Pavel Emelyanov <xemul@parallels.com> Signed-off-by:
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Nicolas Dichtel authored
Adding by commit 51ebd318 which adds the support of ECMP for IPv6. Spotted-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by:
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Padmanabh Ratnakar authored
FW flashing code, even though it works correctly, makes some hidden assumptions about buffer sizes. This is causing code analysers to report error. Cleanup FW flashing code to remove these hidden assumptions. Reported-by:
Yuanhan Liu <yuanhan.liu@intel.com> Signed-off-by:
Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com> Signed-off-by:
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Hans Zhang authored
It's no needed to check the return value of tab since the NULL situation has been handled already, and the rtnl_msg_handlers[PF_UNSPEC] has been initialized as non-NULL during the rtnetlink_init(). Signed-off-by:
Hans Zhang <zhanghonghui@huawei.com> Signed-off-by:
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Eric Dumazet authored
Use same header helpers than tcp_v6_early_demux() because they are a bit faster, and as they make IPv4/IPv6 versions look the same. Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Neal Cardwell authored
Remove an icsk variable, which by convention should refer to an inet_connection_sock rather than an inet_sock. In the process, make the tcp_v6_early_demux() code and formatting a bit more like tcp_v4_early_demux(), to ease comparisons and maintenance. Signed-off-by:
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Greg Rose authored
Signed-off-by:
Greg Rose <gregory.v.rose@intel.com> Tested-by:
Sibai Li <sibai.li@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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John Fastabend authored
The lockdep splat below identifies a case where irq safe to unsafe lock order is detected. Resolved by making mbx_lock bh. ====================================================== [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] 3.6.0-rc5jk-net-next+ #119 Not tainted ------------------------------------------------------ ip/2608 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: (&(&adapter->mbx_lock)->rlock){+.+...}, at: [<ffffffffa008114e>] ixgbevf_set_rx_mode+0x36/0xd2 [ixgbevf] and this task is already holding: (_xmit_ETHER){+.....}, at: [<ffffffff814097c8>] dev_set_rx_mode+0x1e/0x33 which would create a new lock dependency: (_xmit_ETHER){+.....} -> (&(&adapter->mbx_lock)->rlock){+.+...} but this new dependency connects a SOFTIRQ-irq-safe lock: (&(&mc->mca_lock)->rlock){+.-...} ... which became SOFTIRQ-irq-safe at: [<ffffffff81092ee5>] __lock_acquire+0x2f2/0xdf3 [<ffffffff81093b11>] lock_acquire+0x12b/0x158 [<ffffffff814bdbcd>] _raw_spin_lock_bh+0x4a/0x7d [<ffffffffa011a740>] mld_ifc_timer_expire+0x1b2/0x282 [ipv6] [<ffffffff81054580>] run_timer_softirq+0x2a2/0x3ee [<ffffffff8104cc42>] __do_softirq+0x161/0x2b9 [<ffffffff814c6a7c>] call_softirq+0x1c/0x30 [<ffffffff81011bc7>] do_softirq+0x4b/0xa3 [<ffffffff8104c8d5>] irq_exit+0x53/0xd7 [<ffffffff814c734d>] do_IRQ+0x9d/0xb4 [<ffffffff814be56f>] ret_from_intr+0x0/0x1a [<ffffffff813de21c>] cpuidle_enter+0x12/0x14 [<ffffffff813de235>] cpuidle_enter_state+0x17/0x3f [<ffffffff813deb6c>] cpuidle_idle_call+0x140/0x21c [<ffffffff8101764c>] cpu_idle+0x79/0xcd [<ffffffff814a59f5>] rest_init+0x149/0x150 [<ffffffff81ca2cbc>] start_kernel+0x37c/0x389 [<ffffffff81ca22dd>] x86_64_start_reservations+0xb8/0xbd [<ffffffff81ca23e3>] x86_64_start_kernel+0x101/0x110 to a SOFTIRQ-irq-unsafe lock: (&(&adapter->mbx_lock)->rlock){+.+...} ... which became SOFTIRQ-irq-unsafe at: ... [<ffffffff81092f59>] __lock_acquire+0x366/0xdf3 [<ffffffff81093b11>] lock_acquire+0x12b/0x158 [<ffffffff814bd862>] _raw_spin_lock+0x45/0x7a [<ffffffffa0080fde>] ixgbevf_negotiate_api+0x3d/0x6d [ixgbevf] [<ffffffffa008404b>] ixgbevf_open+0x6c/0x43e [ixgbevf] [<ffffffff8140b2c1>] __dev_open+0xa0/0xe6 [<ffffffff814099b6>] __dev_change_flags+0xbe/0x142 [<ffffffff8140b1eb>] dev_change_flags+0x21/0x57 [<ffffffff8141a523>] do_setlink+0x2e2/0x7f4 [<ffffffff8141ad8c>] rtnl_newlink+0x277/0x4bb [<ffffffff81419c08>] rtnetlink_rcv_msg+0x236/0x253 [<ffffffff8142f92d>] netlink_rcv_skb+0x43/0x94 [<ffffffff814199cb>] rtnetlink_rcv+0x26/0x2d [<ffffffff8142f6dc>] netlink_unicast+0xee/0x174 [<ffffffff8142ff12>] netlink_sendmsg+0x26a/0x288 [<ffffffff813f5a0d>] __sock_sendmsg_nosec+0x58/0x61 [<ffffffff813f7d57>] __sock_sendmsg+0x3d/0x48 [<ffffffff813f7ed9>] sock_sendmsg+0x6e/0x87 [<ffffffff813f93d4>] __sys_sendmsg+0x206/0x288 [<ffffffff813f95ce>] sys_sendmsg+0x42/0x60 [<ffffffff814c57a9>] system_call_fastpath+0x16/0x1b other info that might help us debug this: Chain exists of: &(&mc->mca_lock)->rlock --> _xmit_ETHER --> &(&adapter->mbx_lock)->rlock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&adapter->mbx_lock)->rlock); local_irq_disable(); lock(&(&mc->mca_lock)->rlock); lock(_xmit_ETHER); <Interrupt> lock(&(&mc->mca_lock)->rlock); *** DEADLOCK *** Signed-off-by:John Fastabend <john.r.fastabend@intel.com> Acked-by:
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Greg Rose authored
Ignoring the return value from a call to the kernel dma_map API functions can cause data corruption and system instability. Check the return value and take appropriate action. Signed-off-by:
Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by:
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John Fastabend authored
ixgbevf_alloc_q_vectors() calls netif_napi_add for each qvector where qvectors is determined by the number of msix vectors. This makes perfect sense. However on cleanup when ixgbevf_free_q_vectors() is called and for each qvector we should call netif_napi_del there is some extra logic to add a dependency on RX queues. This patch makes the add/del operations symmetric by removing the RX queues dependency. Without this if free_netdev() is called we see the general protection fault below in netif_napi_del when list_del_init() is called. # addr2line -e ./vmlinux ffffffff8140810c net-next/include/linux/list.h:88 general protection fault: 0000 [#1] SMP Modules linked in: bonding ixgbevf ixgbe(-) mdio libfc scsi_transport_fc scsi_tgt 8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf ipv6 uinput coretemp lpc_ich i2c_i801 shpchp hwmon i2c_core serio_raw crc32c_intel mfd_core joydev pcspkr microcode ioatdma igb dca pata_acpi ata_generic usb_storage pata_jmicron [last unloaded: bonding] CPU 10 Pid: 4174, comm: rmmod Tainted: G W 3.6.0-rc3jk-net-next+ #104 Supermicro X8DTN/X8DTN RIP: 0010:[<ffffffff8140810c>] [<ffffffff8140810c>] netif_napi_del+0x24/0x87 RSP: 0018:ffff88027f5e9b48 EFLAGS: 00010293 RAX: ffff8806224b4768 RBX: ffff8806224b46e8 RCX: 6b6b6b6b6b6b6b6b RDX: 6b6b6b6b6b6b6b6b RSI: ffffffff810bf6c5 RDI: ffff8806224b46e8 RBP: ffff88027f5e9b58 R08: ffff88033200b180 R09: ffff88027f5e98a8 R10: ffff88033320b000 R11: ffff88027f5e9ae8 R12: 6b6b6b6b6b6b6aeb R13: ffff8806221d11c0 R14: 0000000000000000 R15: ffff88027f5e9cf8 FS: 00007f5e58b9b700(0000) GS:ffff880333200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00000000010ef2b8 CR3: 0000000281fff000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process rmmod (pid: 4174, threadinfo ffff88027f5e8000, task ffff88032f888000) Stack: ffff8806221d1160 6b6b6b6b6b6b6aeb ffff88027f5e9b88 ffffffff81408e46 ffff8806221d1160 ffff8806221d1160 ffff8806221d1ae0 ffff8806221d5668 ffff88027f5e9bb8 ffffffffa009153c ffffffffa0092a30 ffff8806221d5700 Call Trace: [<ffffffff81408e46>] free_netdev+0x64/0xd7 [<ffffffffa009153c>] ixgbevf_remove+0xa6/0xbc [ixgbevf] [<ffffffff8127a7a1>] pci_device_remove+0x2d/0x51 [<ffffffff8131f503>] __device_release_driver+0x6c/0xc2 [<ffffffff8131f640>] device_release_driver+0x25/0x32 [<ffffffff8131e821>] bus_remove_device+0x148/0x15d [<ffffffff8131cb6b>] device_del+0x130/0x1a4 [<ffffffff8131cc2a>] device_unregister+0x4b/0x57 [<ffffffff81275c27>] pci_stop_bus_device+0x63/0x85 [...] Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Tested-by:
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Carolyn Wyborny authored
This patch updates the igb driver version to 4.0.17. Signed-off-by:
Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by:
Aaron Brown <aaron.f.brown@intel.com> Signed-off-by:
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Carolyn Wyborny authored
There was a problem in the initial implementation of the get cable length function for i210 and it did not work properly. This patch fixes that problem for i210/i211 devices. Signed-off-by:
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Jesse Brandeburg authored
Add an official link which is designed to guide the user to the appropriate support resource (be it community, OEM, Intel phone, Intel email, etc) Add the current e1000 maintainer to the list of Intel maintainers. Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by:
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Tushar Dave authored
This is a HW requirement. Although a buffer as short as 1 byte is allowed, the total length of packet before, padding and CRC insertion, must be at least 17 bytes. So pad all small packets manually up to 17 bytes before delivering them to HW. Signed-off-by:
Tushar Dave <tushar.n.dave@intel.com> Tested-by:
Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Jeff Kirsher says: ==================== This series contains updates to ixgbe only. Only change to this series is I dropped the "ixgbe: Add support for pipeline reset" due to change requested by Martin Josefsson. Alexander Duyck (7): ixgbe: Add support for IPv6 and UDP to ixgbe_get_headlen ixgbe: Add support for tracking the default user priority to SR-IOV ixgbe: Add support for GET_QUEUES message to get DCB configuration ixgbe: Enable support for VF API version 1.1 in the PF. ixgbevf: Add VF DCB + SR-IOV support ixgbe: Drop unnecessary addition from ixgbe_set_rx_buffer_len ixgbe: Fix possible memory leak in ixgbe_set_ringparam Don Skidmore (1): ixgbe: Add function ixgbe_reset_pipeline_82599 Emil Tantilov (1): ixgbe: add WOL support for new subdevice id Jacob Keller (1): ixgbe: (PTP) refactor init, cyclecounter and reset Tushar Dave (1): ixgbe: Correcting small packet padding Wei Yongjun (1): ixgbe: using is_zero_ether_addr() to simplify the code ==================== Signed-off-by: -
Bjørn Mork authored
MBIM devices can support up to 256 generic streams called Device Service Streams (DSS). The MBIM spec says The format of the Device Service Stream payload depends on the device service (as identified by the corresponding UUID) that is used when opening the data stream. Example use cases are serial AT command interfaces and NMEA data streams. We cannot make any assumptions about these device services. Adding support for Device Service Stream by extending the MBIM session to VLAN mapping scheme, allocating VLAN IDs 256 to 511 for DSS, using the DSS SessionID as the lower 8bit of the VLAN ID. Using a netdev for DSS keeps the device framing intact and allows userspace to do whatever it want with the streams. For example, exporting an AT command interface using DSS session #0 to a PTY for use with a terminal application like minicom: vconfig add wwan0 256 ip link set dev wwan0 up ip link set dev wwan0.256 up socat INTERFACE:wwan0.256,type=2 PTY:,echo=0,link=/tmp/modem Device configuration must be done using MBIM control commands over the /dev/cdc-wdmx device. The userspace management application should coordinate host VLAN configuration and the device MBIM configuration using the device capabilities to find out if it needs to set up PTY mappings etc. Signed-off-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
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Bjørn Mork authored
MBIM devices can support up to 256 independent IP Streams. The main network device will only handle SessionID 0. Mapping SessionIDs 1 to 255 to VLANs using the SessionID as VLAN ID allow userspace to use these streams with traditional tools like vconfig. Signed-off-by:
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Bjørn Mork authored
The MBIM specification allows a MBIM device to disguise itself as NCM for backwards compatibility, using additional altsettings with different subclass (control) or protocol (data): C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0d Prot=00 Driver=cdc_mbim E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=7ms I:* If#= 0 Alt= 1 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=7ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_mbim I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_mbim E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 2 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms If the MBIM driver is enabled then that should have priority for devices providing such a NCM 1.0 backward compatibility mode. Signed-off-by:
Greg Suarez <gsuarez@smithmicro.com> Signed-off-by:
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Bjørn Mork authored
Signed-off-by:
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Greg Suarez authored
The CDC Mobile Broadband Interface Model (MBIM) specification extends CDC NCM by - removing the redundant ethernet header from the point-to-point USB channel - adding support for multiple IP (v4 and/or v6) sessions multiplexed on the same USB channel - adding a MBIM control channel encapsulated in CDC - adding Device Service Streams (DSS), which are non IP generic data streams multiplexed on the same USB channel as the IP sessions MBIM devices are managed using the dedicated control channel, and no data will flow on the data channel until a control session has been established. This driver has no knowledge of MBIM control messages. It just exports the control channel to a /dev/cdc-wdmX character device for userspace management applications. Such an application is therefore required to use this driver. This patch implements basic MBIM support, reusing the NCM and WDM driver APIs, currently limited to IP sessions with SessionID 0. DSS and multiplexed IP sessions are not yet supported. Signed-off-by:
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Bjørn Mork authored
Move symbols and definitons which can be shared with a MBIM driver in a new header. Signed-off-by:
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Bjørn Mork authored
Adding multiplexed NDP support to cdc_ncm_fill_tx_frame, allowing transmissions of multiple independent sessions within the same NTB. Refactoring the code quite a bit to avoid having to store copies of multiple NDPs being prepared for tx. The old code would still reserve enough room for a maximum sized NDP in the skb so we might as well keep them in the skb while they are being prepared. Signed-off-by:
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Bjørn Mork authored
Verifying and handling received MBIM and NCM frames will need to be different in three areas: - verifying the NDP signature - checking valid datagram length - datagram header manipulation This makes it inconvenient to share rx_fixup in whole. But some verification parts are common. Split these out in separate functions. Signed-off-by:
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Bjørn Mork authored
The NCM 1.0 spefication makes provisions for linking more than one NDP into a single NTB. This is important for MBIM support, where these NDPs might be of different types. Following the chain of NDPs is also correct for NCM, and will not change anything in the common case where there is only one NDP Signed-off-by:
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Greg Suarez authored
NCM and MBIM can share most of the bind function. Split out the shareable part and add MBIM functional descriptor parsing. Signed-off-by:
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Greg Suarez authored
MBIM and NCM are very similar, so we can reuse most of the setup and bind logic in cdc_ncm for CDC MBIM devices. Handle a few minor differences in ncm_setup. Signed-off-by:
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Greg Suarez authored
Based on revision 1.0 of "Universal Serial Bus Communications Class Subclass Specification for Mobile Broadband Interface Model" available from www.usb.org Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Bjørn Mork authored
Some devices do not support the 8 byte variants of the NTB input size control messages despite announcing such support in their NCM or MBIM functional descriptor. According to the NCM specification, all devices must support the 4 byte variant regardless of whether or not the flag is set: If bit D5 is set in the bmNetworkCapabilities field of function’s NCM Functional Descriptor, the host may set wLength either to 4 or to 8. If wLength is 4, the function shall assume that wNtbInMaxDatagrams is to be set to zero. If wLength is 8, then the function shall use the provided value as the limit. The function shall return an error response (a STALL PID) if wLength is set to any other value. We do not set wNtbInMaxDatagrams in any case, so we can just as well unconditionally use the 4 byte variant without losing any functionality. This works around the known firmware bug, and simplifies the code considerably. Signed-off-by:
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Joachim Eastwood authored
This will allow us to remove the last mach include from at91_ether and also make it easier to share address setup with macb. Signed-off-by:
Joachim Eastwood <manabian@gmail.com> Signed-off-by:
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Joachim Eastwood authored
Now that HAVE_NET_MACB is gone let's just select MACB to satisfy the dependecies in at91_ether. Signed-off-by:
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Joachim Eastwood authored
macb is a platform driver and there is nothing that prevents this driver from being built on non-ARM/AVR32 platforms. Signed-off-by:
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Joachim Eastwood authored
When building macb on x86_64 the following warnings show up: drivers/net/ethernet/cadence/macb.c: In function macb_interrupt: drivers/net/ethernet/cadence/macb.c:556:4: warning: large integer implicitly truncated to unsigned type [-Woverflow] drivers/net/ethernet/cadence/macb.c: In function macb_reset_hw: drivers/net/ethernet/cadence/macb.c:792:2: warning: large integer implicitly truncated to unsigned type [-Woverflow] drivers/net/ethernet/cadence/macb.c:793:2: warning: large integer implicitly truncated to unsigned type [-Woverflow] drivers/net/ethernet/cadence/macb.c:796:2: warning: large integer implicitly truncated to unsigned type [-Woverflow] Use -1 insted of ~0UL, as done in other places in the driver, to silence these warnings. Signed-off-by:
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Nicolas Dichtel authored
Each nexthop is added like a single route in the routing table. All routes that have the same metric/weight and destination but not the same gateway are considering as ECMP routes. They are linked together, through a list called rt6i_siblings. ECMP routes can be added in one shot, with RTA_MULTIPATH attribute or one after the other (in both case, the flag NLM_F_EXCL should not be set). The patch is based on a previous work from Luc Saillard <luc.saillard@6wind.com>. Signed-off-by:
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Alexander Duyck authored
We were not correctly freeing the temporary rings on error in ixgbe_set_ring_param. In order to correct this I am unwinding a number of changes that were made in order to get things back to the original working form with modification for the current ring layouts. This approach has multiple advantages including a smaller memory footprint, and the fact that the interface is stopped while we are allocating the rings meaning that there is less potential for some sort of memory corruption on the ring. The only disadvantage I see with this approach is that on a Rx allocation failure we will report an error and only update the Tx rings. However the adapter should be fully functional in this state and the likelihood of such an error is very low. In addition it is not unreasonable to expect the user to need to recheck the ring configuration should they experience an error setting the ring sizes. Signed-off-by:
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Don Skidmore authored
This patch adds a function that forces a full pipeline reset. This function will be used in following patches to completely reset the PHY during resets. Signed-off-by:
Don Skidmore <donald.c.skidmore@intel.com> Tested-by:
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Alexander Duyck authored
We still had some code floating around from the old single buffer receive path. As a result we were adding VLAN_HLEN to max_frame although the resultant value was never used. Since that is the case we can drop this from the function. Signed-off-by:
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