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2021-06-16net/smc: Add netlink support for SMC statisticsGuvenc Gulce4-0/+355
Add the netlink function which collects the statistics information and delivers it to the userspace. Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net/smc: Add SMC statistics supportGuvenc Gulce7-21/+395
Add the ability to collect SMC statistics information. Per-cpu variables are used to collect the statistic information for better performance and for reducing concurrency pitfalls. The code that is collecting statistic data is implemented in macros to increase code reuse and readability. Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16mlxsw: spectrum_router: remove redundant continue statementColin Ian King1-1/+0
The continue statement at the end of a for-loop has no effect, remove it. Addresses-Coverity: ("Continue has no effect") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: implement action_merge checkLouis Peens1-0/+119
Fill in code stub to check that the flow actions are valid for merge. The actions of the flow X should not conflict with the matches of flow X+1. For now this check is quite strict and set_actions are very limited, will need to update this when NAT support is added. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: fill ct metadata check functionLouis Peens1-5/+32
Fill in check_meta stub to check that ct_metadata action fields in the nft flow matches the ct_match data of the post_ct flow. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: fill in ct merge check functionLouis Peens2-0/+190
Replace merge check stub code with the actual implementation. This checks that the match parts of two tc flows does not conflict. Only overlapping keys needs to be checked, and only the narrowest masked parts needs to be checked, so each key is masked with the AND'd result of both masks before comparing. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: implement code to save merge of tc and nft flowsLouis Peens1-0/+187
Add in the code to merge the tc_merge objects with the flows received from nft. At the moment flows are just merged blindly as the validity check functions are stubbed out, this will be populated in follow-up patches. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: add nft_merge tableLouis Peens3-0/+49
Add table and struct to save the result of the three-way merge between pre_ct,post_ct, and nft flows. Merging code is to be added in follow-up patches. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: make a full copy of the rule when it is a NFT flowYinjun Zhang1-12/+46
The nft flow will be destroyed after offload cb returns. This means we need save a full copy of it since it can be referenced through other paths other than just the offload cb, for example when a new pre_ct or post_ct entry is added, and it needs to be merged with an existing nft entry. Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: add nft flows to nft listLouis Peens3-1/+77
Implement code to add and remove nft flows to the relevant list. Registering and deregistering the callback function for the nft table is quite complicated. The safest is to delete the callback on the removal of the last pre_ct flow. This is because if this is also the latest pre_ct flow in software it means that this specific nft table will be freed, so there will not be a later opportunity to do this. Another place where it looks possible to delete the callback is when the last nft_flow is deleted, but this happens under the flow_table lock, which is also taken when deregistering the callback, leading to a deadlock situation. This means the final solution here is to delete the callback when removing the last pre_ct flow, and then clean up any remaining nft_flow entries which may still be present, since there will never be a callback now to do this, leaving them orphaned if not cleaned up here as well. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: add nft callback stubsLouis Peens2-1/+73
Add register/unregister of the nft callback. For now just add stub code to accept the flows, but don't do anything with it. Decided to accept the flows since netfilter will keep on trying to offload a flow if it was rejected, which is quite noisy. Follow-up patches will start implementing the functions to add nft flows to the relevant tables. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16nfp: flower-ct: add delete flow handling for ctLouis Peens3-4/+49
Add functions to handle delete flow callbacks for ct flows. Also accept the flows for offloading by returning 0 instead of -EOPNOTSUPP. Flows will still not actually be offloaded to hw, but at this point it's difficult to not accept the flows and also exercise the cleanup paths properly. Traffic will still be handled safely through the fallback path. Signed-off-by: Louis Peens <louis.peens@corigine.com> Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: replace if-else statements with switchWeihang Li1-4/+9
Switch statement is clearer than a group of 'if-else'. Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: remove unnecessary line continuationWenpeng Liang2-6/+6
Avoid unnecessary line continuations, and put '|' at the end of line. Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: print the function name by __func__ instead of an fixed stringWenpeng Liang1-2/+2
It's better to use __func__ than a fixed string to print a function's name. Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: fix formatting issues with bracesWenpeng Liang4-12/+9
Fix following format issues: 1. open brace '{' following function definitions should go to the next line. 2. braces {} are not necessary for single line statements. 3. else should follow close brace '}'. Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: fix space alignment issuesWenpeng Liang4-25/+25
There are some space related issues, including spaces at the start of the line, before tabs, after open parenthesis and before close parenthesis. Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: delete repeated words of commentsWenpeng Liang2-2/+2
There are some repeated words in some comments, they should be deleted. Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: correct format of block commentsWenpeng Liang5-9/+16
Block comments should not use a trailing */ on a separate line and every line of a block comment should start with an '*'. Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: phy: change format of some declarationsWenpeng Liang5-5/+9
Add a blank line after declarations, change the order of them and put the assignments and declarations together. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: qualcomm: rmnet: Remove some unneeded castsSubash Abhinov Kasiviswanathan1-6/+5
Remove the explicit casts in the checksum complement functions and pass the actual protocol specific headers instead. Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: iosm: remove the repeated declaration and commentShaokun Zhang1-10/+0
Function 'ipc_mmio_get_cp_version' is declared twice, so remove the repeated declaration and wrong comments. Cc: M Chetan Kumar <m.chetan.kumar@intel.com> Cc: Intel Corporation <linuxwwan@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Reviewed-by: M Chetan Kumar <m.chetan.kumar@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: dsa: xrs700x: forward HSR supervision framesGeorge McCollister1-8/+19
Forward supervision frames between redunant HSR ports. This was broken in the last commit. Fixes: 1a42624aecba ("net: dsa: xrs700x: allow HSR/PRP supervision dupes for node_table") Signed-off-by: George McCollister <george.mccollister@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: qualcomm: rmnet: Allow partial updates of IFLA_FLAGSBjorn Andersson1-2/+4
The idiomatic way to handle the changelink flags/mask pair seems to be allow partial updates of the driver's link flags. In contrast the rmnet driver masks the incoming flags and then use that as the new flags. Change the rmnet driver to follow the common scheme, before the introduction of IFLA_RMNET_FLAGS handling in iproute2 et al. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Alex Elder <elder@linaro.org> Reviewed-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: hsr: don't check sequence number if tag removal is offloadedGeorge McCollister1-1/+2
Don't check the sequence number when deciding when to update time_in in the node table if tag removal is offloaded since the sequence number is part of the tag. This fixes a problem where the times in the node table wouldn't update when 0 appeared to be before or equal to seq_out when tag removal was offloaded. Signed-off-by: George McCollister <george.mccollister@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: stmmac: Fix error return code in ingenic_mac_probe()Wei Yongjun1-0/+1
Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 2bb4b98b60d7 ("net: stmmac: Add Ingenic SoCs MAC support.") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: chelsio: cxgb4: use eth_zero_addr() to assign zero addressYang Yingliang1-2/+1
Using eth_zero_addr() to assign zero address insetad of inefficient copy from an array. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: remove redundant spacesPeng Li1-5/+5
According to the chackpatch.pl, no spaces is necessary at the start of a line, no space is necessary after a cast. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: remove trailing whitespacesPeng Li1-13/+13
This patch removes trailing whitespaces. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: add some required spacesPeng Li1-68/+69
Add space required before the open parenthesis '(' and '{'. Add space required after that close brace '}' and ',' Add spaces required around that '=' , '&', '*', '|', '+', '/' and '-'. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: fix the code style issue about trailing statementsPeng Li1-42/+79
Trailing statements should be on next line. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: fix the alignment issuePeng Li1-10/+12
Alignment should match open parenthesis. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: use BIT macroPeng Li1-3/+3
This patch uses the BIT macro for setting individual bits, to fix the following checkpatch.pl issue: CHECK: Prefer using the BIT macro. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: add necessary () to macro argumentPeng Li1-8/+8
Macro argument 'cosa' may be better as '(cosa)' to avoid precedence issues. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: remove redundant braces {}Peng Li1-3/+3
This patch removes redundant braces {}, to fix the checkpatch.pl warning: "braces {} are not necessary for single statement blocks". Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: add braces {} to all arms of the statementPeng Li1-3/+3
Braces {} should be used on all arms of this statement. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: fix the comments style issuePeng Li1-56/+33
Networking block comments don't use an empty /* line, use /* Comment... Block comments use * on subsequent lines. Block comments use a trailing */ on a separate line. This patch fixes the comments style issues. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: move out assignment in if conditionPeng Li1-10/+15
Should not use assignment in if condition. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: replace comparison to NULL with "!chan->rx_skb"Peng Li1-3/+3
According to the chackpatch.pl, comparison to NULL could be written "!chan->rx_skb". Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: fix the code style issue about "foo* bar"Peng Li1-1/+1
Fix the checkpatch error as "foo* bar" should be "foo *bar". Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: add blank line after declarationsPeng Li1-0/+15
This patch fixes the checkpatch error about missing a blank line after declarations. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: cosa: remove redundant blank linesPeng Li1-10/+0
This patch removes some redundant blank lines. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: iosm: add missing MODULE_DEVICE_TABLEZou Wei1-0/+1
This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this driver when it is built as an external module. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zou Wei <zou_wei@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16qlcnic: Use list_for_each_entry() to simplify code in qlcnic_main.cWang Hai1-3/+1
Convert list_for_each() to list_for_each_entry() where applicable. This simplifies the code. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Hai <wanghai38@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16ethtool: add a stricter length checkJakub Kicinski1-3/+8
There has been a few errors in the ethtool reply size calculations, most of those are hard to trigger during basic testing because of skb size rounding up and netdev names being shorter than max. Add a more precise check. This change will affect the value of payload length displayed in case of -EMSGSIZE but that should be okay, "payload length" isn't a well defined term here. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16inet_diag: add support for tw_markMaciej Żenczykowski1-2/+10
Timewait sockets have included mark since approx 4.18. Cc: Eric Dumazet <edumazet@google.com> Cc: Jon Maxwell <jmaxwell37@gmail.com> Fixes: 00483690552c ("tcp: Add mark for TIMEWAIT sockets") Signed-off-by: Maciej Żenczykowski <maze@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jon Maxwell <jmaxwell37@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: mhi_net: make mhi_wwan_ops staticJiapeng Chong1-1/+1
This symbol is not used outside of net.c, so marks it static. Fix the following sparse warning: drivers/net/mhi/net.c:385:23: warning: symbol 'mhi_wwan_ops' was not declared. Should it be static? Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: hns3: use bounce buffer when rx page can not be reusedYunsheng Lin4-0/+41
Currently rx page will be reused to receive future packet when the stack releases the previous skb quickly. If the old page can not be reused, a new page will be allocated and mapped, which comsumes a lot of cpu when IOMMU is in the strict mode, especially when the application and irq/NAPI happens to run on the same cpu. So allocate a new frag to memcpy the data to avoid the costly IOMMU unmapping/mapping operation, and add "frag_alloc_err" and "frag_alloc" stats in "ethtool -S ethX" cmd. The throughput improves above 50% when running single thread of iperf using TCP when IOMMU is in strict mode and iperf shares the same cpu with irq/NAPI(rx_copybreak = 2048 and mtu = 1500). Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: hns3: optimize the rx page reuse handling processYunsheng Lin1-22/+22
Current rx page offset only reset to zero when all the below conditions are satisfied: 1. rx page is only owned by driver. 2. rx page is reusable. 3. the page offset that is above to be given to the stack has reached the end of the page. If the page offset is over the hns3_buf_size(), it means the buffer below the offset of the page is usable when the above condition 1 & 2 are satisfied, so page offset can be reset to zero instead of increasing the offset. We may be able to always reuse the first 4K buffer of a 64K page, which means we can limit the hot buffer size as much as possible. The above optimization is a side effect when refacting the rx page reuse handling in order to support the rx copybreak. Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16net: hns3: support dma_map_sg() for multi frags skbYunsheng Lin3-5/+113
Using the queue based tx buffer, it is also possible to allocate a sgl buffer, and use skb_to_sgvec() to convert the skb to the sgvec in order to support the dma_map_sg() to decreases the overhead of IOMMU mapping and unmapping. Firstly, it reduces the number of buffers. For example, a tcp skb may have a 66-byte header and 3 fragments of 4328, 32768, and 28064 bytes. With this patch, dma_map_sg() will combine them into two buffers, 66-bytes header and one 65160-bytes fragment by using IOMMU. Secondly, it reduces the number of dma mapping and unmapping. All the original 4 buffers are mapped only once rather than 4 times. The throughput improves above 10% when running single thread of iperf using TCP when IOMMU is in strict mode. Suggested-by: Barry Song <song.bao.hua@hisilicon.com> Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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