- 16 Jun, 2017 40 commits
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David S. Miller authored
Tariq Toukan says: ==================== pktgen new parameters This patchset adds two parameters to the pktgen scripts. * The first patch adds a parameter to control the number of packets sent by every pktgen thread. * The second patch adds a parameter to control the index of first thread, instead of always starting from cpu 0. Series generated against net-next commit: f7aec129 rxrpc: Cache the congestion window setting Thanks, Tariq. V2: * rebased to latest net-next. * per Jesper's comments on Patch 2, fixed $F_THREAD description and $L_THREAD evaluation. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tariq Toukan authored
Use "-f <num>", to specify the index of the first sender thread. In default first thread is #0. Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tariq Toukan authored
Use -n <num>, to specify the number of packets every thread sends. Zero means indefinitely. Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Antoine Tenart says: ==================== net: mvmdio: add xMDIO xSMI support This series aims to add the xSMI support on the xMDIO bus to the mvmdio driver. The xSMI interface complies with the IEEE 802.3 clause 45 and is used by 10GbE devices. On 7k and 8k (as of now), such an interface is found and is used by Ethernet controllers. Patches 1-4 and 9 are cosmetic cleanups. Patches 5-7 are prerequisites to the xSMI support. Patches 8 and 10-11 add the xSMI support to the mvmdio driver, and a node is added both in the cp110 slave and master device trees. This was tested on an Armada 8040 mcbin, as well as on both the Armada 7040 DB and the Armada 8040 DB to ensure the SMI interface was still working. @Dave: patch 11 should go through the mvebu tree as asked by Gregory, thanks! ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
A new compatible for Marvell xMDIO interfaces was added into the Marvell MDIO driver. Document this new compatible. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
Cosmetic patch simplifying the smi read and write error paths. It also align their error paths with the ones of the xsmi functions. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
This patch adds the xmdio xsmi interface support in the mvmdio driver. This interface is used in Ethernet controllers on Marvell 370, 7k and 8k (as of now). The xsmi interface supported by this driver complies with the IEEE 802.3 clause 45. The xSMI interface is used by 10GbE devices. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
Add a check for the read and write smi operations, to ensure the MII_ADDR_C45 bit isn't set. This will be needed as soon as the xSMI support is added to the mvmdio driver. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
Put the two poll intervals (min and max) in the driver's ops structure. This is needed to add the xmdio support later. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
Introduce an ops structure to add an indirection on the is_done function, as this is needed to add the xMDIO support later. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Russell King authored
The MDIO layer already provides per-bus locking, so there's no need for MDIO bus drivers to do their own internal locking. Remove this. Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
Cosmetic patch to use the GENMASK helper for masks. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
Cosmetic patch replacing spaces by tabs for defined values. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Ténart authored
Cosmetic fix reordering headers alphabetically. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Martin KaFai Lau says: ==================== bpf: xdp: Report bpf_prog ID in IFLA_XDP This is the first usage of the new bpf_prog ID. It is for reporting the ID of a xdp_prog through netlink. It rides on the existing IFLA_XDP. This patch adds IFLA_XDP_PROG_ID for the bpf_prog ID reporting. It starts with changing the generic_xdp first. After that, the hardware driver is changed one by one. Jakub Kicinski mentioned that he will soon introduce XDP_ATTACHED_HW (on top of the existing XDP_ATTACHED_DRV and XDP_ATTACHED_SKB) and he is going to reuse the prog_attached for this purpose. Hence, this patch set keeps the prog_attached even though !!prog_id also implies there is xdp_prog attached. I have tested with generic_xdp, mlx4 and mlx5. v3: 1. Replace 'if' by '?' when checking the xdp_prog pointer as suggested by Jakub Kicinski (thanks!) v2: 1. Remove READ_ONCE since it is alredy under rtnl lock 2. Keep prog_attached in 'struct netdev_xdp' as requested by Jakub Kicinski. The existing prog_attached and the new prog_id are put under a struct for XDP_QUERY_PROG. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to qede to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: Mintz Yuval <Yuval.Mintz@cavium.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to nfp to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to ixgbe to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: Alexander Duyck <alexander.h.duyck@intel.com> Cc: John Fastabend <john.fastabend@gmail.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to thunderx to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: Sunil Goutham <sgoutham@cavium.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to bnxt to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: Michael Chan <michael.chan@broadcom.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to virtio_net to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Jason Wang <jasowang@redhat.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to mlx5e to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: Tariq Toukan <tariqt@mellanox.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Add support to mlx4 to report bpf_prog ID during XDP_QUERY_PROG. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Cc: Tariq Toukan <tariqt@mellanox.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Expose prog_id through IFLA_XDP_PROG_ID. This patch makes modification to generic_xdp. The later patches will modify other xdp-supported drivers. prog_id is added to struct net_dev_xdp. iproute2 patch will be followed. Here is how the 'ip link' will look like: > ip link show eth0 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 xdp(prog_id:1) qdisc fq_codel state UP mode DEFAULT group default qlen 1000 Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@fb.com> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Johannes Berg says: ==================== skb data accessors cleanup Over night, Fengguang's bot told me that it compiled all of its many various configurations successfully, and I had done allyesconfig on x86_64 myself yesterday to iron out the things I missed. So now I think I'm happy with it. My tree was based on your commit 3715c47b Merge: 18b6e795 d8fbd274 Author: David S. Miller <davem@davemloft.net> Date: Thu Jun 15 14:31:56 2017 -0400 Merge branch 'r8152-support-new-chips' when the compilation tests happened, but I've reviewed the changes coming into net-next in the meantime and didn't see any new usages of skb data accessors having come in. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johannes Berg authored
Joe and Bjørn suggested that it'd be nicer to not have the cast in the fairly common case of doing *(u8 *)skb_put(skb, 1) = c; Add skb_put_u8() for this case, and use it across the code, using the following spatch: @@ expression SKB, C, S; typedef u8; identifier fn = {skb_put}; fresh identifier fn2 = fn ## "_u8"; @@ - *(u8 *)fn(SKB, S) = C; + fn2(SKB, C); Note that due to the "S", the spatch isn't perfect, it should have checked that S is 1, but there's also places that use a sizeof expression like sizeof(var) or sizeof(u8) etc. Turns out that nobody ever did something like *(u8 *)skb_put(skb, 2) = c; which would be wrong anyway since the second byte wouldn't be initialized. Suggested-by:
Joe Perches <joe@perches.com> Suggested-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johannes Berg authored
It seems like a historic accident that these return unsigned char *, and in many places that means casts are required, more often than not. Make these functions return void * and remove all the casts across the tree, adding a (u8 *) cast only where the unsigned char pointer was used directly, all done with the following spatch: @@ expression SKB, LEN; typedef u8; identifier fn = { skb_push, __skb_push, skb_push_rcsum }; @@ - *(fn(SKB, LEN)) + *(u8 *)fn(SKB, LEN) @@ expression E, SKB, LEN; identifier fn = { skb_push, __skb_push, skb_push_rcsum }; type T; @@ - E = ((T *)(fn(SKB, LEN))) + E = fn(SKB, LEN) @@ expression SKB, LEN; identifier fn = { skb_push, __skb_push, skb_push_rcsum }; @@ - fn(SKB, LEN)[0] + *(u8 *)fn(SKB, LEN) Note that the last part there converts from push(...)[0] to the more idiomatic *(u8 *)push(...). Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johannes Berg authored
It seems like a historic accident that these return unsigned char *, and in many places that means casts are required, more often than not. Make these functions return void * and remove all the casts across the tree, adding a (u8 *) cast only where the unsigned char pointer was used directly, all done with the following spatch: @@ expression SKB, LEN; typedef u8; identifier fn = { skb_pull, __skb_pull, skb_pull_inline, __pskb_pull_tail, __pskb_pull, pskb_pull }; @@ - *(fn(SKB, LEN)) + *(u8 *)fn(SKB, LEN) @@ expression E, SKB, LEN; identifier fn = { skb_pull, __skb_pull, skb_pull_inline, __pskb_pull_tail, __pskb_pull, pskb_pull }; type T; @@ - E = ((T *)(fn(SKB, LEN))) + E = fn(SKB, LEN) Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johannes Berg authored
It seems like a historic accident that these return unsigned char *, and in many places that means casts are required, more often than not. Make these functions (skb_put, __skb_put and pskb_put) return void * and remove all the casts across the tree, adding a (u8 *) cast only where the unsigned char pointer was used directly, all done with the following spatch: @@ expression SKB, LEN; typedef u8; identifier fn = { skb_put, __skb_put }; @@ - *(fn(SKB, LEN)) + *(u8 *)fn(SKB, LEN) @@ expression E, SKB, LEN; identifier fn = { skb_put, __skb_put }; type T; @@ - E = ((T *)(fn(SKB, LEN))) + E = fn(SKB, LEN) which actually doesn't cover pskb_put since there are only three users overall. A handful of stragglers were converted manually, notably a macro in drivers/isdn/i4l/isdn_bsdcomp.c and, oddly enough, one of the many instances in net/bluetooth/hci_sock.c. In the former file, I also had to fix one whitespace problem spatch introduced. Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johannes Berg authored
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by:
Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johannes Berg authored
There were many places that my previous spatch didn't find, as pointed out by yuan linyu in various patches. The following spatch found many more and also removes the now unnecessary casts: @@ identifier p, p2; expression len; expression skb; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_zero(skb, len); | -p = (t)skb_put(skb, len); +p = skb_put_zero(skb, len); ) ... when != p ( p2 = (t2)p; -memset(p2, 0, len); | -memset(p, 0, len); ) @@ type t, t2; identifier p, p2; expression skb; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_zero(skb, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_zero(skb, sizeof(t)); ) ... when != p ( p2 = (t2)p; -memset(p2, 0, sizeof(*p)); | -memset(p, 0, sizeof(*p)); ) @@ expression skb, len; @@ -memset(skb_put(skb, len), 0, len); +skb_put_zero(skb, len); Apply it to the tree (with one manual fixup to keep the comment in vxlan.c, which spatch removed.) Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Hayes Wang says: ==================== r8152: adjust runtime suspend/resume v2: For #1, replace GFP_KERNEL with GFP_NOIO for usb_submit_urb(). v1: Improve the flow about runtime suspend/resume and make the code easy to read. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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hayeswang authored
Move calling delay_autosuspend() in rtl8152_runtime_suspend(). Calling delay_autosuspend() as late as possible. The original flows are 1. check if the driver/device is busy now. 2. set wake events. 3. enter runtime suspend. If the wake event occurs between (1) and (2), the device may miss it. Besides, to avoid the runtime resume occurs after runtime suspend immediately, move the checking to the end of rtl8152_runtime_suspend(). Signed-off-by:
Hayes Wang <hayeswang@realtek.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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hayeswang authored
Split rtl8152_resume() into rtl8152_runtime_resume() and rtl8152_system_resume(). Besides, replace GFP_KERNEL with GFP_NOIO for usb_submit_urb(). Signed-off-by:
Hayes Wang <hayeswang@realtek.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
We refer to TCP et al. symbols so have to use INET as the dependency. ERROR: "tcp_prot" [net/tls/tls.ko] undefined! >> ERROR: "tcp_rate_check_app_limited" [net/tls/tls.ko] undefined! ERROR: "tcp_register_ulp" [net/tls/tls.ko] undefined! ERROR: "tcp_unregister_ulp" [net/tls/tls.ko] undefined! ERROR: "do_tcp_sendpages" [net/tls/tls.ko] undefined! Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Tariq Toukan says: ==================== mlx4 XDP performance improvements This patchset contains data-path improvements, mainly for XDP_DROP and XDP_TX cases. Main patches: * Patch 2 by Saeed allows enabling optimized A0 RX steering (in HW) when setting a single RX ring. With this configuration, HW packet-rate dramatically improves, reaching 28.1 Mpps in XDP_DROP case for both IPv4 (37% gain) and IPv6 (53% gain). * Patch 6 enhances the XDP xmit function. Among other changes, now we ring one doorbell per NAPI. Patch gives 17% gain in XDP_TX case. * Patch 7 obsoletes the NAPI of XDP_TX completion queue and integrates its poll into the respective RX NAPI. Patch gives 15% gain in XDP_TX case. Series generated against net-next commit: f7aec129 rxrpc: Cache the congestion window setting ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tariq Toukan authored
Some code re-ordering, functionally equivalent. - The !tx_info->inl check is evaluated anyway in both flows (common case/end case). Run it first, this might finish the flows earlier. - dma_unmap calls are identical in both flows, get it out of the if block into the common area. Performance tests: Tested on ConnectX3Pro, Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz Gain is too small to be measurable, no degradation sensed. Results are similar for IPv4 and IPv6. Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Reviewed-by:
Saeed Mahameed <saeedm@mellanox.com> Cc: kernel-team@fb.com Cc: Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tariq Toukan authored
Define LOG_TXBB_SIZE, log of TXBB_SIZE, and use it with a shift operation instead of a multiplication with TXBB_SIZE. Operations are equivalent as TXBB_SIZE is a power of two. Performance tests: Tested on ConnectX3Pro, Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz Gain is too small to be measurable, no degradation sensed. Results are similar for IPv4 and IPv6. Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Reviewed-by:
Saeed Mahameed <saeedm@mellanox.com> Cc: kernel-team@fb.com Cc: Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tariq Toukan authored
Increase the default TX ring size (from 512 to 1024) to match the RX ring size. This gives the XDP TX ring a better chance to keep up with the rate of its RX ring in case of a high load of XDP_TX actions. Tested: Ethtool counter rx_xdp_tx_full used to increase, after applying this patch it stopped. Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Reviewed-by:
Saeed Mahameed <saeedm@mellanox.com> Cc: kernel-team@fb.com Cc: Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tariq Toukan authored
Instead of having their own NAPIs, XDP TX completion queues get polled within the corresponding RX NAPI. This prevents any possible race on TX ring prod/cons indices, between the context that issues the transmits (RX NAPI) and the context that handles the completions (was previously done in a separate NAPI). This also improves performance, as it decreases the number of NAPIs running on a CPU, saving the overhead of syncing and switching between the contexts. Performance tests: Tested on ConnectX3Pro, Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz Single queue no-RSS optimization ON. XDP_TX packet rate: ------------------------------------- | Before | After | Gain | IPv4 | 12.0 Mpps | 13.8 Mpps | 15% | IPv6 | 12.0 Mpps | 13.8 Mpps | 15% | ------------------------------------- Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Reviewed-by:
Saeed Mahameed <saeedm@mellanox.com> Cc: kernel-team@fb.com Cc: Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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