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H A D | .mailmap | diff 002e39e9 Wed Oct 11 09:01:04 MDT 2023 Bartosz Golaszewski <bartosz.golaszewski@linaro.org> mailmap: map Bartosz's old address to the current one I no longer work for BayLibre but many DT bindings have my BL address in the maintainers entries. Map it to the email address I use for kernel development. Link: https://lkml.kernel.org/r/20231011150104.73863-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Suggested-by: Conor Dooley <conor@kernel.org> Cc: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Cc: Bjorn Andersson <quic_bjorande@quicinc.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Konrad Dybcio <konrad.dybcio@linaro.org> # qcom Cc: Qais Yousef <qyousef@layalina.io> Cc: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> diff 002d3c65 Tue Nov 05 20:52:03 MST 2019 Jayachandran C <c.jayachandran@gmail.com> MAINTAINERS: update Cavium ThunderX2 maintainers jnair is no longer at caviumnetworks.com (or at marvell.com). This also means that Cavium ThunderX2 will now be maintained by Robert. This is probably a good time to map various email addresses used for my patches to my personal email ID, update .mailmap to do this. Link: https://lore.kernel.org/r/20191106035203.5389-1-c.jayachandran@gmail.com Signed-off-by: Jayachandran C <c.jayachandran@gmail.com> Acked-by: Robert Richter <rrichter@marvell.com> Signed-off-by: Olof Johansson <olof@lixom.net> diff 002d3c65 Tue Nov 05 20:52:03 MST 2019 Jayachandran C <c.jayachandran@gmail.com> MAINTAINERS: update Cavium ThunderX2 maintainers jnair is no longer at caviumnetworks.com (or at marvell.com). This also means that Cavium ThunderX2 will now be maintained by Robert. This is probably a good time to map various email addresses used for my patches to my personal email ID, update .mailmap to do this. Link: https://lore.kernel.org/r/20191106035203.5389-1-c.jayachandran@gmail.com Signed-off-by: Jayachandran C <c.jayachandran@gmail.com> Acked-by: Robert Richter <rrichter@marvell.com> Signed-off-by: Olof Johansson <olof@lixom.net> |
H A D | MAINTAINERS | diff 002d3c65 Tue Nov 05 20:52:03 MST 2019 Jayachandran C <c.jayachandran@gmail.com> MAINTAINERS: update Cavium ThunderX2 maintainers jnair is no longer at caviumnetworks.com (or at marvell.com). This also means that Cavium ThunderX2 will now be maintained by Robert. This is probably a good time to map various email addresses used for my patches to my personal email ID, update .mailmap to do this. Link: https://lore.kernel.org/r/20191106035203.5389-1-c.jayachandran@gmail.com Signed-off-by: Jayachandran C <c.jayachandran@gmail.com> Acked-by: Robert Richter <rrichter@marvell.com> Signed-off-by: Olof Johansson <olof@lixom.net> diff 002d3c65 Tue Nov 05 20:52:03 MST 2019 Jayachandran C <c.jayachandran@gmail.com> MAINTAINERS: update Cavium ThunderX2 maintainers jnair is no longer at caviumnetworks.com (or at marvell.com). This also means that Cavium ThunderX2 will now be maintained by Robert. This is probably a good time to map various email addresses used for my patches to my personal email ID, update .mailmap to do this. Link: https://lore.kernel.org/r/20191106035203.5389-1-c.jayachandran@gmail.com Signed-off-by: Jayachandran C <c.jayachandran@gmail.com> Acked-by: Robert Richter <rrichter@marvell.com> Signed-off-by: Olof Johansson <olof@lixom.net> diff 002e6745 Tue Jan 09 08:30:23 MST 2018 Christoph Hellwig <hch@lst.de> dma-direct: rename dma_noop to dma_direct The trivial direct mapping implementation already does a virtual to physical translation which isn't strictly a noop, and will soon learn to do non-direct but linear physical to dma translations through the device offset and a few small tricks. Rename it to a better fitting name. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com> diff 0a14842f Wed Apr 20 03:27:32 MDT 2011 Eric Dumazet <eric.dumazet@gmail.com> net: filter: Just In Time compiler for x86-64 In order to speedup packet filtering, here is an implementation of a JIT compiler for x86_64 It is disabled by default, and must be enabled by the admin. echo 1 >/proc/sys/net/core/bpf_jit_enable It uses module_alloc() and module_free() to get memory in the 2GB text kernel range since we call helpers functions from the generated code. EAX : BPF A accumulator EBX : BPF X accumulator RDI : pointer to skb (first argument given to JIT function) RBP : frame pointer (even if CONFIG_FRAME_POINTER=n) r9d : skb->len - skb->data_len (headlen) r8 : skb->data To get a trace of generated code, use : echo 2 >/proc/sys/net/core/bpf_jit_enable Example of generated code : # tcpdump -p -n -s 0 -i eth1 host 192.168.20.0/24 flen=18 proglen=147 pass=3 image=ffffffffa00b5000 JIT code: ffffffffa00b5000: 55 48 89 e5 48 83 ec 60 48 89 5d f8 44 8b 4f 60 JIT code: ffffffffa00b5010: 44 2b 4f 64 4c 8b 87 b8 00 00 00 be 0c 00 00 00 JIT code: ffffffffa00b5020: e8 24 7b f7 e0 3d 00 08 00 00 75 28 be 1a 00 00 JIT code: ffffffffa00b5030: 00 e8 fe 7a f7 e0 24 00 3d 00 14 a8 c0 74 49 be JIT code: ffffffffa00b5040: 1e 00 00 00 e8 eb 7a f7 e0 24 00 3d 00 14 a8 c0 JIT code: ffffffffa00b5050: 74 36 eb 3b 3d 06 08 00 00 74 07 3d 35 80 00 00 JIT code: ffffffffa00b5060: 75 2d be 1c 00 00 00 e8 c8 7a f7 e0 24 00 3d 00 JIT code: ffffffffa00b5070: 14 a8 c0 74 13 be 26 00 00 00 e8 b5 7a f7 e0 24 JIT code: ffffffffa00b5080: 00 3d 00 14 a8 c0 75 07 b8 ff ff 00 00 eb 02 31 JIT code: ffffffffa00b5090: c0 c9 c3 BPF program is 144 bytes long, so native program is almost same size ;) (000) ldh [12] (001) jeq #0x800 jt 2 jf 8 (002) ld [26] (003) and #0xffffff00 (004) jeq #0xc0a81400 jt 16 jf 5 (005) ld [30] (006) and #0xffffff00 (007) jeq #0xc0a81400 jt 16 jf 17 (008) jeq #0x806 jt 10 jf 9 (009) jeq #0x8035 jt 10 jf 17 (010) ld [28] (011) and #0xffffff00 (012) jeq #0xc0a81400 jt 16 jf 13 (013) ld [38] (014) and #0xffffff00 (015) jeq #0xc0a81400 jt 16 jf 17 (016) ret #65535 (017) ret #0 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
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