- 06 Feb, 2021 36 commits
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Vladimir Oltean authored
Make ocelot's net device event handler more streamlined by structuring it in a similar way with others. The inspiration here was dsa_slave_netdevice_event. Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Vladimir Oltean authored
ocelot_netdevice_port_event treats a single event, NETDEV_CHANGEUPPER. So we can remove the check for the type of event, and rename the function to be more suggestive, since there already is a function with a very similar name of ocelot_netdevice_event. Signed-off-by:
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Jakub Kicinski authored
Vladimir Oltean says: ==================== Automatically manage DSA master interface state This patch series adds code that makes DSA open the master interface automatically whenever one user interface gets opened, either by the user, or by various networking subsystems: netconsole, nfsroot. With that in place, we can remove some of the places in the network stack where DSA-specific code was sprinkled. ==================== Link: https://lore.kernel.org/r/20210205133713.4172846-1-vladimir.oltean@nxp.comSigned-off-by:
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Vladimir Oltean authored
This reverts commit 728c0208. Since 2015 DSA has gained more integration with the network stack, we can now have the same functionality without explicitly open-coding for it: - It now opens the DSA master netdevice automatically whenever a user netdevice is opened. - The master and switch interfaces are coupled in an upper/lower hierarchy using the netdev adjacency lists. In the nfsroot example below, the interface chosen by autoconfig was swp3, and every interface except that and the DSA master, eth1, was brought down afterwards: [ 8.714215] mscc_felix 0000:00:00.5 swp0 (uninitialized): PHY [0000:00:00.3:10] driver [Microsemi GE VSC8514 SyncE] (irq=POLL) [ 8.978041] mscc_felix 0000:00:00.5 swp1 (uninitialized): PHY [0000:00:00.3:11] driver [Microsemi GE VSC8514 SyncE] (irq=POLL) [ 9.246134] mscc_felix 0000:00:00.5 swp2 (uninitialized): PHY [0000:00:00.3:12] driver [Microsemi GE VSC8514 SyncE] (irq=POLL) [ 9.486203] mscc_felix 0000:00:00.5 swp3 (uninitialized): PHY [0000:00:00.3:13] driver [Microsemi GE VSC8514 SyncE] (irq=POLL) [ 9.512827] mscc_felix 0000:00:00.5: configuring for fixed/internal link mode [ 9.521047] mscc_felix 0000:00:00.5: Link is Up - 2.5Gbps/Full - flow control off [ 9.530382] device eth1 entered promiscuous mode [ 9.535452] DSA: tree 0 setup [ 9.539777] printk: console [netcon0] enabled [ 9.544504] netconsole: network logging started [ 9.555047] fsl_enetc 0000:00:00.2 eth1: configuring for fixed/internal link mode [ 9.562790] fsl_enetc 0000:00:00.2 eth1: Link is Up - 1Gbps/Full - flow control off [ 9.564661] 8021q: adding VLAN 0 to HW filter on device bond0 [ 9.637681] fsl_enetc 0000:00:00.0 eth0: PHY [0000:00:00.0:02] driver [Qualcomm Atheros AR8031/AR8033] (irq=POLL) [ 9.655679] fsl_enetc 0000:00:00.0 eth0: configuring for inband/sgmii link mode [ 9.666611] mscc_felix 0000:00:00.5 swp0: configuring for inband/qsgmii link mode [ 9.676216] 8021q: adding VLAN 0 to HW filter on device swp0 [ 9.682086] mscc_felix 0000:00:00.5 swp1: configuring for inband/qsgmii link mode [ 9.690700] 8021q: adding VLAN 0 to HW filter on device swp1 [ 9.696538] mscc_felix 0000:00:00.5 swp2: configuring for inband/qsgmii link mode [ 9.705131] 8021q: adding VLAN 0 to HW filter on device swp2 [ 9.710964] mscc_felix 0000:00:00.5 swp3: configuring for inband/qsgmii link mode [ 9.719548] 8021q: adding VLAN 0 to HW filter on device swp3 [ 9.747811] Sending DHCP requests .. [ 12.742899] mscc_felix 0000:00:00.5 swp1: Link is Up - 1Gbps/Full - flow control rx/tx [ 12.743828] mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Full - flow control off [ 12.747062] IPv6: ADDRCONF(NETDEV_CHANGE): swp1: link becomes ready [ 12.755216] fsl_enetc 0000:00:00.0 eth0: Link is Up - 1Gbps/Full - flow control rx/tx [ 12.766603] IPv6: ADDRCONF(NETDEV_CHANGE): swp0: link becomes ready [ 12.783188] mscc_felix 0000:00:00.5 swp2: Link is Up - 1Gbps/Full - flow control rx/tx [ 12.785354] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 12.799535] IPv6: ADDRCONF(NETDEV_CHANGE): swp2: link becomes ready [ 13.803141] mscc_felix 0000:00:00.5 swp3: Link is Up - 1Gbps/Full - flow control rx/tx [ 13.811646] IPv6: ADDRCONF(NETDEV_CHANGE): swp3: link becomes ready [ 15.452018] ., OK [ 15.470336] IP-Config: Got DHCP answer from 10.0.0.1, my address is 10.0.0.39 [ 15.477887] IP-Config: Complete: [ 15.481330] device=swp3, hwaddr=00:04:9f:05:de:0a, ipaddr=10.0.0.39, mask=255.255.255.0, gw=10.0.0.1 [ 15.491846] host=10.0.0.39, domain=(none), nis-domain=(none) [ 15.498429] bootserver=10.0.0.1, rootserver=10.0.0.1, rootpath= [ 15.498481] nameserver0=8.8.8.8 [ 15.627542] fsl_enetc 0000:00:00.0 eth0: Link is Down [ 15.690903] mscc_felix 0000:00:00.5 swp0: Link is Down [ 15.745216] mscc_felix 0000:00:00.5 swp1: Link is Down [ 15.800498] mscc_felix 0000:00:00.5 swp2: Link is Down Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Vladimir Oltean authored
This reverts commit 1532b977. The above commit is good and it works, however it was meant as a bugfix for stable kernels and now we have more self-contained ways in DSA to handle the situation where the DSA master must be brought up. Signed-off-by:
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Vladimir Oltean authored
This is not fixing any actual bug that I know of, but having a DSA interface that is up even when its lower (master) interface is down is one of those things that just do not sound right. Yes, DSA checks if the master is up before actually bringing the user interface up, but nobody prevents bringing the master interface down immediately afterwards... Then the user ports would attempt dev_queue_xmit on an interface that is down, and wonder what's wrong. This patch prevents that from happening. NETDEV_GOING_DOWN is the notification emitted _before_ the master actually goes down, and we are protected by the rtnl_mutex, so all is well. For those of you reading this because you were doing switch testing such as latency measurements for autonomously forwarded traffic, and you needed a controlled environment with no extra packets sent by the network stack, this patch breaks that, because now the user ports go down too, which may shut down the PHY etc. But please don't do it like that, just do instead: tc qdisc add dev eno2 clsact tc filter add dev eno2 egress flower action drop Tested with two cascaded DSA switches: $ ip link set eno2 down sja1105 spi2.0 sw0p2: Link is Down mscc_felix 0000:00:00.5 swp0: Link is Down fsl_enetc 0000:00:00.2 eno2: Link is Down Signed-off-by:
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Vladimir Oltean authored
DSA wants the master interface to be open before the user port is due to historical reasons. The promiscuity of interfaces that are down used to have issues, as referenced Lennert Buytenhek in commit df02c6ff ("dsa: fix master interface allmulti/promisc handling"). The bugfix mentioned there, commit b6c40d68 ("net: only invoke dev->change_rx_flags when device is UP"), was basically a "don't do that" approach to working around the promiscuity while down issue. Further work done by Vlad Yasevich in commit d2615bf4 ("net: core: Always propagate flag changes to interfaces") has resolved the underlying issue, and it is strictly up to the DSA and 8021q drivers now, it is no longer mandated by the networking core that the master interface must be up when changing its promiscuity. From DSA's point of view, deciding to error out in dsa_slave_open because the master isn't up is (a) a bad user experience and (b) knocking at an open door. Even if there still was an issue with promiscuity while down, DSA could still just open the master and avoid it. Doing it this way has the additional benefit that user space can now remove DSA-specific workarounds, like systemd-networkd with BindCarrier: https://github.com/systemd/systemd/issues/7478 And we can finally remove one of the 2 bullets in the "Common pitfalls using DSA setups" chapter. Tested with two cascaded DSA switches: $ ip link set sw0p2 up fsl_enetc 0000:00:00.2 eno2: configuring for fixed/internal link mode fsl_enetc 0000:00:00.2 eno2: Link is Up - 1Gbps/Full - flow control rx/tx mscc_felix 0000:00:00.5 swp0: configuring for fixed/sgmii link mode mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Full - flow control off 8021q: adding VLAN 0 to HW filter on device swp0 sja1105 spi2.0 sw0p2: configuring for phy/rgmii-id link mode IPv6: ADDRCONF(NETDEV_CHANGE): eno2: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): swp0: link becomes ready Signed-off-by:
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Jakub Kicinski authored
Huazhong Tan says: ==================== net: hns3: updates for -next This series adds some code optimizations and compatibility handlings for the HNS3 ethernet driver. change log: V2: refactor #2 as Jukub Kicinski reported and remove the part about RSS size which will not be different in different hw. updates netdev->max_mtu as well in #4 reported by Jakub Kicinski. previous version: V1: https://patchwork.kernel.org/project/netdevbpf/cover/1612269593-18691-1-git-send-email-tanhuazhong@huawei.com/ ==================== Link: https://lore.kernel.org/r/1612513969-9278-1-git-send-email-tanhuazhong@huawei.comSigned-off-by: -
Guangbin Huang authored
The max qset number is a fixed value now and it is defined by a macro. In order to support other value in different kinds of device, it is better to use specification queried from firmware to replace macro. Signed-off-by:
Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by:
Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by:
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Guangbin Huang authored
In order to add a method to check the specification of max tm rate for debugging, function hns3_dbg_dev_specs() adds this value print. Signed-off-by:
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Yufeng Mo authored
Since the newer hardware may supports different frame size, so add support to obtain the capability from the firmware instead of the fixed value. Signed-off-by:
Yufeng Mo <moyufeng@huawei.com> Signed-off-by:
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GuoJia Liao authored
When update the TC info for NIC, there are some differences between PF and VF. Currently, four "vport->vport_id" are used to distinguish PF or VF. So merge them into one to improve readability and maintainability of code. Signed-off-by:
GuoJia Liao <liaoguojia@huawei.com> Signed-off-by:
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Guangbin Huang authored
As RSS indirection table size may be different in different hardware. Instead of using macro, this value is better to use device specification which querying from firmware. BTW, RSS indirection table should be allocated by the queried size instead the static array. .get_rss_indir_size in struct hnae3_ae_ops is not used now, so remove it as well. Signed-off-by:
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Jian Shen authored
To improve the compatibility of firmware for driver, help firmware to deal with different api commands, add api capability bits when initialize the command queue. Signed-off-by:
Jian Shen <shenjian15@huawei.com> Signed-off-by:
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Jakub Kicinski authored
Mat Martineau says: ==================== mptcp: Misc. updates for tests & lock annotation Here are two fixes we've collected in the mptcp tree. Patch 1 refactors a MPTCP selftest script to allow running a subset of the tests. Patch 2 adds some locking & might_sleep assertations. ==================== Link: https://lore.kernel.org/r/20210204232330.202441-1-mathew.j.martineau@linux.intel.comSigned-off-by:
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Florian Westphal authored
Add a few assertions to make sure functions are called with the needed locks held. Two functions gain might_sleep annotations because they contain conditional calls to functions that sleep. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by:
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Geliang Tang authored
Since the mptcp_join script is becoming too big, this patch splits it into several smaller chunks, each of them has been defined in a function as a individual test group for several related testcases. Using bash getopts function to parse command line arguments, and invoke each function to do the individual test group. Here are all the arguments: -f subflows_tests -s signal_address_tests -l link_failure_tests -t add_addr_timeout_tests -r remove_tests -a add_tests -6 ipv6_tests -4 v4mapped_tests -b backup_tests -p add_addr_ports_tests -c syncookies_tests -h help Run mptcp_join.sh with no argument will execute all testcases. Signed-off-by:
Geliang Tang <geliangtang@gmail.com> Signed-off-by:
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Jakub Kicinski authored
Russell King says: ==================== dpaa2: add 1000base-X support This patch series adds 1000base-X support to pcs-lynx and DPAA2, allowing runtime switching between SGMII and 1000base-X. This is a pre-requisit for SFP module support on the SolidRun ComExpress 7. v2: updated with Ioana's r-b's, and comment on backplane support ==================== Link: https://lore.kernel.org/r/20210205103859.GH1463@shell.armlinux.org.ukSigned-off-by:
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Russell King authored
Add support for backplane link mode, which is, according to discussions with NXP earlier in the year, is a mode where the OS (Linux) is able to manage the PCS and Serdes itself. This commit prepares the ground work for allowing 1G fiber connections to be used with DPAA2 on the SolidRun CEX7 platforms. Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
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Russell King authored
Now that pcs-lynx supports 1000BASE-X, add support for this interface mode to dpaa2-mac. pcs-lynx can be switched at runtime between SGMII and 1000BASE-X mode, so allow dpaa2-mac to switch between these as well. This commit prepares the ground work for allowing 1G fiber connections to be used with DPAA2 on the SolidRun CEX7 platforms. Reviewed-by:
Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by:
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Russell King authored
Add support for 1000BASE-X to pcs-lynx for the LX2160A. This commit prepares the ground work for allowing 1G fiber connections to be used with DPAA2 on the SolidRun CEX7 platforms. Reviewed-by:
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Emil Renner Berthing authored
This converts the driver to use the new tasklet API introduced in commit 12cc923f ("tasklet: Introduce new initialization API") The new API changes the argument passed to callback functions, but fortunately it is unused so it is straight forward to use DECLARE_TASKLET rather than DECLARE_TASLKLET_OLD. Signed-off-by:
Emil Renner Berthing <kernel@esmil.dk> Link: https://lore.kernel.org/r/20210204173947.92884-1-kernel@esmil.dkSigned-off-by:
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Jakub Kicinski authored
Kevin Hao says: ==================== net: Avoid the memory waste in some Ethernet drivers In the current implementation of napi_alloc_frag(), it doesn't have any align guarantee for the returned buffer address. We would have to use some ugly workarounds to make sure that we can get a align buffer address for some Ethernet drivers. This patch series tries to introduce some helper functions to make sure that an align buffer is returned. Then we can drop the ugly workarounds and avoid the unnecessary memory waste. ==================== Link: https://lore.kernel.org/r/20210204105638.1584-1-haokexin@gmail.comSigned-off-by:
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Kevin Hao authored
The napi_alloc_frag_align() will guarantee that a correctly align buffer address is returned. So use this function to simplify the buffer alloc and avoid the unnecessary memory waste. Signed-off-by:
Kevin Hao <haokexin@gmail.com> Reviewed-by:
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Kevin Hao authored
The napi_alloc_frag_align() will guarantee that a correctly align buffer address is returned. So use this function to simplify the buffer alloc and avoid the unnecessary memory waste. Signed-off-by:
Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by:
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Kevin Hao authored
In the current implementation of {netdev,napi}_alloc_frag(), it doesn't have any align guarantee for the returned buffer address, But for some hardwares they do require the DMA buffer to be aligned correctly, so we would have to use some workarounds like below if the buffers allocated by the {netdev,napi}_alloc_frag() are used by these hardwares for DMA. buf = napi_alloc_frag(really_needed_size + align); buf = PTR_ALIGN(buf, align); These codes seems ugly and would waste a lot of memories if the buffers are used in a network driver for the TX/RX. We have added the align support for the page_frag functions, so add the corresponding {netdev,napi}_frag functions. Signed-off-by:Alexander Duyck <alexanderduyck@fb.com> Signed-off-by:
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Kevin Hao authored
In the current implementation of page_frag_alloc(), it doesn't have any align guarantee for the returned buffer address. But for some hardwares they do require the DMA buffer to be aligned correctly, so we would have to use some workarounds like below if the buffers allocated by the page_frag_alloc() are used by these hardwares for DMA. buf = page_frag_alloc(really_needed_size + align); buf = PTR_ALIGN(buf, align); These codes seems ugly and would waste a lot of memories if the buffers are used in a network driver for the TX/RX. So introduce page_frag_alloc_align() to make sure that an aligned buffer address is returned. Signed-off-by:Vlastimil Babka <vbabka@suse.cz> Reviewed-by:
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Colin Ian King authored
There is a spelling mistake in the function name alloc_channles_and_rings. Fix this by renaming it to alloc_channels_and_rings. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20210204094944.51460-1-colin.king@canonical.comSigned-off-by:
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Loic Poulain authored
When device side MTU is larger than host side MTU, the packets (typically rmnet packets) are split over multiple MHI transfers. In that case, fragments must be re-aggregated to recover the packet before forwarding to upper layer. A fragmented packet result in -EOVERFLOW MHI transaction status for each of its fragments, except the final one. Such transfer was previously considered as error and fragments were simply dropped. This change adds re-aggregation mechanism using skb chaining, via skb frag_list. A warning (once) is printed since this behavior usually comes from a misconfiguration of the device (e.g. modem MTU). Signed-off-by:
Loic Poulain <loic.poulain@linaro.org> Acked-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Link: https://lore.kernel.org/r/1612428002-12333-1-git-send-email-loic.poulain@linaro.orgSigned-off-by:
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Loic Poulain authored
There is no guarantee that rmnet rx_handler is only fed with linear skbs, but current rmnet implementation does not check that, leading to crash in case of non linear skbs processed as linear ones. Fix that by ensuring skb linearization before processing. Signed-off-by:
Willem de Bruijn <willemb@google.com> Reviewed-by:
Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Link: https://lore.kernel.org/r/1612428002-12333-2-git-send-email-loic.poulain@linaro.orgSigned-off-by:
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Zheng Yongjun authored
When kalloc or kmemdup failed, should return ENOMEM rather than ENOBUF. Signed-off-by:
Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20210204073950.18372-1-zhengyongjun3@huawei.comSigned-off-by:
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Zheng Yongjun authored
When kalloc or kmemdup failed, should return ENOMEM rather than ENOBUF. Signed-off-by:
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Xu Wang authored
Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...)). net/bridge/br_multicast.c:1246:9-16: WARNING: ERR_CAST can be used with mp Generated by: scripts/coccinelle/api/err_cast.cocci Signed-off-by:
Xu Wang <vulab@iscas.ac.cn> Link: https://lore.kernel.org/r/20210204070549.83636-1-vulab@iscas.ac.cnSigned-off-by:
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Lorenzo Bianconi authored
Align netdevice statistics when the device is running in XDP mode to other upstream drivers. In particular report to user-space rx packets even if they are not forwarded to the networking stack (XDP_PASS) but if they are redirected (XDP_REDIRECT), dropped (XDP_DROP) or sent back using the same interface (XDP_TX). This patch allows the system administrator to verify the device is receiving data correctly. Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/a457cb17dd9c58c116d64ee34c354b2e89c0ff8f.1612375372.git.lorenzo@kernel.orgSigned-off-by:
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Jiapeng Chong authored
Fix the following coccicheck warnings: ./drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c:1651:36-38: WARNING !A || A && B is equivalent to !A || B. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Acked-by:
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Jakub Kicinski authored
Merge tag 'wireless-drivers-next-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for v5.12 First set of patches for v5.12. A smaller pull request this time, biggest feature being a better key handling for ath9k. And of course the usual fixes and cleanups all over. Major changes: ath9k * more robust encryption key cache management brcmfmac * support BCM4365E with 43666 ChipCommon chip ID * tag 'wireless-drivers-next-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next: (35 commits) iwl4965: do not process non-QOS frames on txq->sched_retry path mt7601u: process tx URBs with status EPROTO properly wlcore: Fix command execute failure 19 for wl12xx mt7601u: use ieee80211_rx_list to pass frames to the network stack as a batch rtw88: 8723de: adjust the LTR setting rtlwifi: rtl8821ae: fix bool comparison in expressions rtlwifi: rtl8192se: fix bool comparison in expressions rtlwifi: rtl8188ee: fix bool comparison in expressions rtlwifi: rtl8192c-common: fix bool comparison in expressions rtlwifi: rtl_pci: fix bool comparison in expressions wlcore: Downgrade exceeded max RX BA sessions to debug wilc1000: use flexible-array member instead of zero-length array brcmfmac: clear EAP/association status bits on linkdown events brcmfmac: Delete useless kfree code qtnfmac_pcie: Use module_pci_driver mt7601u: check the status of device in calibration mt7601u: process URBs in status EPROTO properly brcmfmac: support BCM4365E with 43666 ChipCommon chip ID wilc1000: fix spelling mistake in Kconfig "devision" -> "division" mwifiex: pcie: Drop bogus __refdata annotation ... ==================== Link: https://lore.kernel.org/r/20210205161901.C7F83C433ED@smtp.codeaurora.orgSigned-off-by:
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- 05 Feb, 2021 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queueJakub Kicinski authored
Tony Nguyen says: ==================== 1GbE Intel Wired LAN Driver Updates 2021-02-03 This series contains updates to igc, igb, e1000e, and e1000 drivers. Sasha adds counting of good transmit packets and reporting of NVM version and gPHY version in ethtool firmware version. Replaces the use of strlcpy to the preferred strscpy. Fixes a typo that caused the wrong register to be output. He also removes an unused function pointer, some unneeded defines, and a non-applicable comment. All changes for igc. Gal Hammer fixes a typo which caused the RDBAL register values to be shown instead of TDBAL for igb. Nick Lowe enables RSS support for i211 devices for igb. Tom Rix fixes checkpatch warning by removing h from printk format specifier for igb. Kaixu Xia removes setting of a variable that is overwritten before next use for e1000e. Sudip Mukherjee removes an unneeded assignment for e1000. * '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: e1000: drop unneeded assignment in e1000_set_itr() e1000e: remove the redundant value assignment in e1000_update_nvm_checksum_spt igb: remove h from printk format specifier igb: Enable RSS for Intel I211 Ethernet Controller igb: fix TDBAL register show incorrect value igc: Fix TDBAL register show incorrect value igc: Remove unused FUNC_1 mask igc: Remove unused local receiver mask igc: Prefer strscpy over strlcpy igc: Expose the gPHY firmware version igc: Expose the NVM version igc: Add Host Good Packets Transmitted Count igc: Remove MULR mask define igc: Remove igc_set_fw_version comment igc: Clean up nvm_operations structure ==================== Link: https://lore.kernel.org/r/20210204004259.3662059-1-anthony.l.nguyen@intel.comSigned-off-by:
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Jakub Kicinski authored
Andrea Parri says: ==================== Amend "hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer" Patch #2 also addresses the Smatch complaint reported here: https://lkml.kernel.org/r/YBp2oVIdMe+G%2FliJ@mwanda/ ==================== Link: https://lore.kernel.org/r/20210203113513.558864-1-parri.andrea@gmail.comSigned-off-by:
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Andrea Parri (Microsoft) authored
Fix the typo. Signed-off-by:
Andrea Parri (Microsoft) <parri.andrea@gmail.com> Fixes: 0ba35fe9 ("hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer") Signed-off-by:
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Andrea Parri (Microsoft) authored
The recv_buf buffers are allocated in netvsc_device_add(). Later in netvsc_init_buf() the response to NVSP_MSG1_TYPE_SEND_RECV_BUF allows the host to set up a recv_section_size that could be bigger than the (default) value used for that allocation. The host-controlled value could be used by a malicious host to bypass the check on the packet's length in netvsc_receive() and hence to overflow the recv_buf buffer. Move the allocation of the recv_buf buffers into netvsc_init_but(). Reported-by:
Juan Vazquez <juvazq@microsoft.com> Signed-off-by:
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