- 03 Aug, 2020 39 commits
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Christophe JAILLET authored
Avoid a memset after a call to 'dma_alloc_coherent()'. This is useless since commit 518a2f19 ("dma-mapping: zero memory returned from dma_alloc_*") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Christophe JAILLET authored
Update the size used in 'dma_free_coherent()' in order to match the one used in the corresponding 'dma_alloc_coherent()', in 'spider_net_init_chain()'. Fixes: d4ed8f8d ("Spidernet DMA coalescing") Signed-off-by:
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Christophe JAILLET authored
Update the size used in 'dma_free_coherent()' in order to match the one used in the corresponding 'dma_alloc_coherent()'. Fixes: 369a782a ("net: sgi: ioc3-eth: ensure tx ring is 16k aligned.") Signed-off-by:
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Tianjia Zhang authored
On an error exit path, a negative error code should be returned instead of a positive return value. Fixes: 0c45d7fe ("liquidio: fix use of pf in pass-through mode in a virtual machine") Cc: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by:
Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by:
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Tianjia Zhang authored
In the case of invalid rule, a positive value EINVAL is returned here. I think this is a typo error. It is necessary to return an error value. Cc: Po Liu <Po.Liu@nxp.com> Signed-off-by:
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Tianjia Zhang authored
In function hw_atl_a0_hw_multicast_list_set(), when an invalid request is encountered, a negative error code should be returned. Fixes: bab6de8f ("net: ethernet: aquantia: Atlantic A0 and B0 specific functions") Cc: David VomLehn <vomlehn@texas.net> Signed-off-by:
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Jia-Ju Bai authored
In queue_skb(), skb->data is mapped to streaming DMA on line 850: dma_map_single(..., skb->data, ...); Then skb->data is accessed on lines 862 and 863: tbd->word_4 = (skb->data[0] << 24) | (skb->data[1] << 16) | (skb->data[2] << 8) | (skb->data[3] << 0); and on lines 893 and 894: tbd->word_4 = (skb->data[0] << 24) | (skb->data[1] << 16) | (skb->data[2] << 8) | (skb->data[3] << 0); These accesses may cause data inconsistency between CPU cache and hardware. To fix this problem, the calculation result of skb->data is stored in a local variable before DMA mapping, and then the driver accesses this local variable instead of skb->data. Signed-off-by:Jia-Ju Bai <baijiaju@tsinghua.edu.cn> Signed-off-by:
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Jia-Ju Bai authored
In do_tx(), skb->data is mapped to streaming DMA on line 1111: paddr = dma_map_single(...,skb->data,DMA_TO_DEVICE); Then skb->data is accessed on line 1153: (skb->data[3] & 0xf) This access may cause data inconsistency between CPU cache and hardware. To fix this problem, skb->data[3] is assigned to a local variable before DMA mapping, and then the driver accesses this local variable instead of skb->data[3]. Signed-off-by:
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Bartosz Golaszewski authored
PHYLIB is not selected by the mvusb driver but it uses mdio devres helpers. Explicitly select MDIO_DEVRES in this driver's Kconfig entry. Reported-by:
kernel test robot <lkp@intel.com> Fixes: 1814cff2 ("net: phy: add a Kconfig option for mdio_devres") Signed-off-by:
Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Vincent Duvert authored
Add a missing return statement to atalk_proc_init so it doesn't return -ENOMEM when successful. This allows the appletalk module to load properly. Fixes: e2bcd8b0 ("appletalk: use remove_proc_subtree to simplify procfs code") Link: https://www.downtowndougbrown.com/2020/08/hacking-up-a-fix-for-the-broken-appletalk-kernel-module-in-linux-5-1-and-newer/Reported-by:
Christopher KOBAYASHI <chris@disavowed.jp> Reported-by:
Doug Brown <doug@downtowndougbrown.com> Signed-off-by:
Vincent Duvert <vincent.ldev@duvert.net> [lukas: add missing tags] Signed-off-by:
Lukas Wunner <lukas@wunner.de> Cc: stable@vger.kernel.org # v5.1+ Cc: Yue Haibing <yuehaibing@huawei.com> Signed-off-by:
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Jonathan McDowell authored
This adds full 802.1q VLAN support to the qca8k, allowing the use of vlan_filtering and more complicated bridging setups than allowed by basic port VLAN support. Tested with a number of untagged ports with separate VLANs and then a trunk port with all the VLANs tagged on it. v3: - Pull QCA8K_PORT_VID_DEF changes into separate cleanup patch - Reverse Christmas tree notation for variable definitions - Use untagged instead of tagged for consistency v2: - Return sensible errnos on failure rather than -1 (rmk) - Style cleanups based on Florian's feedback - Silently allow VLAN 0 as device correctly treats this as no tag Signed-off-by:
Jonathan McDowell <noodles@earth.li> Reviewed-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
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Jonathan McDowell authored
Rather than using a magic value of 1 when configuring the port VIDs add a QCA8K_PORT_VID_DEF define and use that instead. Also fix up the bitmask in the process; the top 4 bits are reserved so this wasn't a problem, but only masking 12 bits is the correct approach. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Tony Nguyen says: ==================== 100GbE Intel Wired LAN Driver Updates 2020-08-01 This series contains updates to the ice driver only. Wei Yongjun marks power management functions with __maybe_unused. Nick disables VLAN pruning in promiscuous mode and renames grst_delay to grst_timeout. Kiran modifies the check for linearization and corrects the vsi_id mask value. Vignesh replaces the use of flow profile locks to RSS profile locks for RSS rule removal. Destroys flow profile lock on clearing XLT table and clears extraction sequence entries. Jesse adds some statistics and removes an unreported one. Brett allows for 2 queue configuration for VFs. Surabhi adds a check for failed allocation of an extraction sequence table. Tony updates the PTYPE lookup table and makes other trivial fixes. Victor extends profile ID locks to be held until all references are completed. ==================== Signed-off-by: -
Miaohe Lin authored
When we don't care about vlan depth, we could pass NULL instead of the address of a unused local variable to skb_network_protocol() as a param. Signed-off-by:
Miaohe Lin <linmiaohe@huawei.com> Signed-off-by:
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Miaohe Lin authored
In fact, skb_pagelen() - skb_headlen() is equal to __skb_pagelen(), use it directly to avoid unnecessary skb_headlen() call. Also fix the CHECK note of checkpatch.pl: Comparison to NULL could be written "!__pskb_pull_tail" Signed-off-by: -
Miaohe Lin authored
Use eth_zero_addr() to clear mac address instead of memset(). Signed-off-by:
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Miaohe Lin authored
Use eth_zero_addr() to clear mac address instead of memset(). Signed-off-by:
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Rahul Lakkireddy authored
commit c8729cac ("cxgb4: add ethtool n-tuple filter insertion") has removed checking control key for determining IP address types for TC-FLOWER rules, which causes all the rules being inserted to hardware to become IPv6 rule type always. So, add back the check to select the correct IP address type to extract and hence fix the correct rule type being inserted to hardware. Also, ethtool_rx_flow_key doesn't have any control key and instead directly sets the IPv4/IPv6 address keys. So, explicitly set the IP address type for ethtool n-tuple filters to reuse the same code. Fixes: c8729cac ("cxgb4: add ethtool n-tuple filter insertion") Signed-off-by:
Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by:
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Rahul Lakkireddy authored
The flag indicating the selftest to run is a bitmask. So, fix the check. Also, the selftests will fail if adapter initialization has not been completed yet. So, add appropriate check and bail sooner. Fixes: 7235ffae ("cxgb4: add loopback ethtool self-test") Signed-off-by:
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David S. Miller authored
Shannon Nelson says: ==================== ionic txrx updates These are a few patches to do some cleanup in the packet handling and give us more flexibility in tuning performance by allowing us to put Tx handling on separate interrupts when it makes sense for particular traffic loads. v3: simplified queue count change logging, removed unnecessary check for no count change v2: dropped the original patch 2 for ringsize change changed the separated tx/rx interrupts to use ethtool -L ==================== Signed-off-by: -
Shannon Nelson authored
Add the capability to split the Tx queues onto their own interrupts with their own napi contexts. This gives the opportunity for more direct control of Tx interrupt handling, such as CPU affinity and interrupt coalescing, useful for some traffic loads. v2: use ethtool -L, not a vendor specific priv-flag v3: simplify logging, drop unnecessary "no-change" tests Reviewed-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Shannon Nelson <snelson@pensando.io> Signed-off-by:
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Shannon Nelson authored
We give the tx clean path its own budget and service routine in order to give a little more leeway to be more aggressive, and in preparation for coming changes. We've found this gives us a little better performance in some packet processing scenarios without hurting other scenarios. Signed-off-by:
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Shannon Nelson authored
We really don't need to hit the Rx queue doorbell so many times, we can wait to the end and cause a little less thrash. Signed-off-by:
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Lorenzo Bianconi authored
The GRE tunnel can be used to transport traffic that does not rely on a Internet checksum (e.g. SCTP). The issue can be triggered creating a GRE or GRETAP tunnel and transmitting SCTP traffic ontop of it where CRC offload has been disabled. In order to fix the issue we need to recompute the GRE csum in gre_gso_segment() not relying on the inner checksum. The issue is still present when we have the CRC offload enabled. In this case we need to disable the CRC offload if we require GRE checksum since otherwise skb_checksum() will report a wrong value. Fixes: 90017acc ("sctp: Add GSO support") Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
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Nikolay Aleksandrov authored
We need to clear all of the bridge private skb variables as they can be stale due to the packet being recirculated through the stack and then transmitted through the bridge device. Similar memset is already done on bridge's input. We've seen cases where proxyarp_replied was 1 on routed multicast packets transmitted through the bridge to ports with neigh suppress which were getting dropped. Same thing can in theory happen with the port isolation bit as well. Fixes: 821f1b21 ("bridge: add new BR_NEIGH_SUPPRESS port flag to suppress arp and nd flood") Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by:
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Florent Fourcot authored
"how" was used as a boolean. Change the type to bool, and improve variable name Signed-off-by:
Florent Fourcot <florent.fourcot@wifirst.fr> Signed-off-by:
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Florent Fourcot authored
Second parameter of addrconf_ifdown "how" is used as a boolean internally. It does not make sense to call it with something different of 0 or 1. This value is set to 2 in all git history. Signed-off-by:
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David S. Miller authored
Eelco Chaudron says: ==================== net: openvswitch: masks cache enhancements This patchset adds two enhancements to the Open vSwitch masks cache. Changes in v4 [patch 2/2 only]: - Remove null check before calling free_percpu() - Make ovs_dp_change() return appropriate error codes Changes in v3 [patch 2/2 only]: - Use is_power_of_2() function - Use array_size() function - Fix remaining sparse errors Changes in v2 [patch 2/2 only]: - Fix sparse warnings - Fix netlink policy items reported by Florian Westphal ==================== Signed-off-by:
Eelco Chaudron <echaudro@redhat.com> Signed-off-by:
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Eelco Chaudron authored
This patch makes the masks cache size configurable, or with a size of 0, disable it. Reviewed-by:
Paolo Abeni <pabeni@redhat.com> Reviewed-by:
Tonghao Zhang <xiangxia.m.yue@gmail.com> Signed-off-by:
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Eelco Chaudron authored
Add a counter that counts the number of masks cache hits, and export it through the megaflow netlink statistics. Reviewed-by:
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Lorenzo Bianconi authored
Release skb memory in mvpp2_rx() if mvpp2_rx_refill routine fails Fixes: b5015854 ("net: mvpp2: fix refilling BM pools in RX path") Signed-off-by:
Matteo Croce <mcroce@microsoft.com> Signed-off-by:
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Gaurav Singh authored
info cannot be NULL here since its being accessed earlier in the function: nlmsg_parse(info->nlhdr...). Remove this redundant NULL check. Signed-off-by:
Gaurav Singh <gaurav1086@gmail.com> Reviewed-by:
Michal Kubecek <mkubecek@suse.cz> Signed-off-by:
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Peilin Ye authored
ovs_ct_put_key() is potentially copying uninitialized kernel stack memory into socket buffers, since the compiler may leave a 3-byte hole at the end of `struct ovs_key_ct_tuple_ipv4` and `struct ovs_key_ct_tuple_ipv6`. Fix it by initializing `orig` with memset(). Fixes: 9dd7f890 ("openvswitch: Add original direction conntrack tuple to sw_flow_key.") Suggested-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Peilin Ye <yepeilin.cs@gmail.com> Signed-off-by:
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wenxu authored
When openvswitch conntrack offload with act_ct action. Fragment packets defrag in the ingress tc act_ct action and miss the next chain. Then the packet pass to the openvswitch datapath without the mru. The over mtu packet will be dropped in output action in openvswitch for over mtu. "kernel: net2: dropped over-mtu packet: 1528 > 1500" This patch add mru in the tc_skb_ext for adefrag and miss next chain situation. And also add mru in the qdisc_skb_cb. The act_ct set the mru to the qdisc_skb_cb when the packet defrag. And When the chain miss, The mru is set to tc_skb_ext which can be got by ovs datapath. Fixes: b57dc7c1 ("net/sched: Introduce action ct") Signed-off-by:
wenxu <wenxu@ucloud.cn> Reviewed-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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David S. Miller authored
Bruno Thomsen says: ==================== Improve MDIO Ethernet PHY reset This patch series is a result of trying to upstream a new device tree for a TQMa7D based board[1][2]. Initial this DTS used some deprecated PHY reset properties on the FEC device; NXP Ethernet MAC also known as Freescale Fast Ethernet Controller. When switching from FEC properties[3]: "phy-reset-gpios" "phy-reset-duration" "phy-reset-post-delay" To MDIO PHY properties[4]: "reset-gpios" "reset-assert-us" "reset-deassert-us" The result was that no Ethernet PHY device was detected on boot. This issue could be worked around by disabling PHY type ID auto- detection by using "ethernet-phy-id0022.1560" as compatible string and not "ethernet-phy-ieee802.3-c22". Upstreaming a DTS with this workaround was not accepted, so I digged into the MDIO reset flow and found that it had a few missing parts compared to the deprecated FEC reset function. After some more testing and logic analyzer traces it was revealed that the failed PHY communication was due to missing initial device reset. I was suggested[5] in a earlier mail thread to use MDIO bus reset as that was performed before auto-detection, but current device tree binding was limited to reset assert in usec. Microchip/Micrel Ethernet PHYs recommended reset circuit[8], figure 7-12, is a little "slow" after reset deassert as that is left to a RC circuit with a tau of ~100ms; using a 10k PU resistor together with a 10uF decoupling capacitor. The diode in serie of the reset signal converts the GPIO push-pull output into a open-drain output. So a post reset delay in the range of 500-1000ms is needed, depending on component tolerances and general hardware design margins. In the first version of this patch series[6] I reused the "reset-delay-us" property for reset deassert in usec as that would cause 50/50% duty-cycle, but that would always apply. The solution in this patch series is to add a new MDIO bus property, so post reset delay is optional and configured separately. MDIO bus properties[7]: "reset-delay-us" "reset-post-delay-us" (new) I have not marked this with "Fixes:" as no single commit is the cause and historically this code has only supported MDIO devices that need reset after auto-detection. The patch series also uses a new flexible sleep helper function that was introduced in 5.8-rc1, so the driver uses the optimal sleep function depending on value loaded from device tree. Future work in this area could add new properties on the MDIO device, so reset points are configurable, e.g. no reset, before/after auto-detection or both. [1] https://lore.kernel.org/linux-devicetree/20200629114927.17379-2-bruno.thomsen@gmail.com/ [2] https://lore.kernel.org/linux-devicetree/20200716172611.5349-2-bruno.thomsen@gmail.com/ [3] https://elixir.bootlin.com/linux/v5.7.8/source/Documentation/devicetree/bindings/net/fsl-fec.txt#L44 [4] https://elixir.bootlin.com/linux/v5.8-rc4/source/Documentation/devicetree/bindings/net/mdio.yaml#L78 [5] https://lore.kernel.org/netdev/CAOMZO5DtYDomD8FDCZDwYCSr2AwNT81Ay4==aDxXyBxtyvPiJA@mail.gmail.com/ [6] https://lore.kernel.org/netdev/20200728090203.17313-1-bruno.thomsen@gmail.com/ [7] https://elixir.bootlin.com/linux/v5.8-rc4/source/Documentation/devicetree/bindings/net/mdio.yaml#L36 [8] http://ww1.microchip.com/downloads/en/DeviceDoc/00002202C.pdf ==================== Signed-off-by:
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Bruno Thomsen authored
MDIO device reset assert and deassert length was created by usleep_range() but that does not ensure optimal handling of all the different values from device tree properties. By switching to the new flexible sleeping helper function, fsleep(), the correct delay function is called depending on delay length, e.g. udelay(), usleep_range() or msleep(). Signed-off-by:
Bruno Thomsen <bruno.thomsen@gmail.com> Reviewed-by:
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Bruno Thomsen authored
Load new "reset-post-delay-us" value from MDIO properties, and if configured to a greater then zero delay do a flexible sleeping delay after MDIO bus reset deassert. This allows devices to exit reset state before start bus communication. Signed-off-by:
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Bruno Thomsen authored
MDIO bus reset pulse width is created by using udelay() and that function might not be optimal depending on device tree value. By switching to the new fsleep() helper the correct delay function is called depending on delay length, e.g. udelay(), usleep_range() or msleep(). Signed-off-by:
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Bruno Thomsen authored
Add "reset-post-delay-us" parameter to MDIO bus properties, so it's possible to add a delay after reset deassert. This is optional in case external hardware slows down release of the reset signal. Signed-off-by:
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- 02 Aug, 2020 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller authored
Resolved kernel/bpf/btf.c using instructions from merge commit 69138b34Signed-off-by:
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