- 12 Apr, 2017 29 commits
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Alexey Dobriyan authored
This field is never big enough to warrant 16-bitness. 8-bit accesses enjoy shorted encoding on i386/x86_64 than 16-bit accesses: add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10 (-10) function old new delta loopback_setup 169 164 -5 ether_setup 148 143 -5 Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alexey Dobriyan authored
Using 16-bit ->hh_len doesn't save any memory, save some .text instead: add/remove: 0/0 grow/shrink: 1/6 up/down: 2/-19 (-17) function old new delta neigh_update 2312 2314 +2 fwnet_header_cache 199 197 -2 eth_header_cache 101 99 -2 ip6_finish_output2 2371 2368 -3 vrf_finish_output6 1522 1518 -4 vrf_finish_output 1413 1409 -4 ip_finish_output2 1627 1623 -4 Signed-off-by:
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Ilan Tayari authored
A driver may use build_skb() for received packets. These SKBs then have a head_frag. Since commit d7e8883c ("net: make GRO aware of skb->head_frag"), GRO may build frag_list SKBs out of head_frag received SKBs. In such a case, the chained SKBs end up with a head_frag. Commit 07b26c94 ("gso: Support partial splitting at the frag_list pointer") adds partial segmentation of frag_list SKB chains into individual SKBs. However, this is not done if the chained SKBs have any linear part, because the device may not be able to DMA the private linear buffer. A chained frag_list SKB with head_frag is wrongfully detected in this case as having a private linear part and thus falls back to software GSO, while in fact the linear part is backed by a DMA page just like any other frag. This causes low performance when forwarding those packets that were built with build_skb() Allow partial segmentation at the frag_list pointer for chained SKBs with head_frag. Note that such SKBs can only be created by GRO, when applied to received packets with head_frag. Also note that this change only affects the data path that performs the partial segmentation at frag_list pointer, and not any of the other more common data paths. Signed-off-by:
Ilan Tayari <ilant@mellanox.com> Signed-off-by:
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David S. Miller authored
Guillaume Nault says: ==================== l2tp: constify l2tp_session_get*() and l2tp_tunnel_find*() Declare parameters of these functions as "const" where possible. ==================== Signed-off-by: -
Guillaume Nault authored
l2tp_tunnel_find() and l2tp_tunnel_find_nth() don't modify "net". Signed-off-by:
Guillaume Nault <g.nault@alphalink.fr> Signed-off-by:
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Guillaume Nault authored
Make l2tp_pernet()'s parameter constant, so that l2tp_session_get*() can declare their "net" variable as "const". Also constify "ifname" in l2tp_session_get_by_ifname(). Signed-off-by:
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David S. Miller authored
Benjamin Herrenschmidt says: ==================== ftgmac100: Rework batch 4 - Misc This is v2 of the fourth batch of updates to the ftgmac100 driver. This is a bunch of misc cleanups and fixes, such as properly disabling HW checksum generation on AST2400 where it's known to be broken and some chip init updates. This also adds the ability to turn HW checksum on/off and configure the ring sizes via ethtool. v2 Fixes patch 1/10 (NETIF_F_HW_CSUM conversion) The next (and last) batch will add a few more "features" such as netpoll, multicast/promist, vlan offload... ==================== Signed-off-by: -
Benjamin Herrenschmidt authored
I haven't seen any improvement above that size on the machines I've tested with. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Benjamin Herrenschmidt authored
We set an arbitrary max at 1024 since we pre-allocate the actual descriptor arrays and skb arrays to the full size to keep the code a bit simpler and avoid allocation failures in the reset task. Signed-off-by:
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Benjamin Herrenschmidt authored
Clear stale interrupts on entry, configure FIFO sizes, set FIFO thresholds, configure interrupt mitigation. Signed-off-by:
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Benjamin Herrenschmidt authored
The helpers just take space but don't provide much value. Simple one line comments are more explanatory. Signed-off-by:
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Benjamin Herrenschmidt authored
To remove more confusion. This function is about obtaining the initial MAC address at driver probe time. Signed-off-by:
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Benjamin Herrenschmidt authored
To avoid confusion with the ndo callback and generally be clearer about the purpose of that function Signed-off-by:
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Benjamin Herrenschmidt authored
So features can be turned on/off via ethtool Signed-off-by:
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Benjamin Herrenschmidt authored
We found out that HW checksum generation only works from AST2500 onward. This disables it on AST2400 and removes the "no-hw-checksum" properties in the device-trees. The problem we had wasn't related to NC-SI. Also rework the logic testing for that property so it can be used to disable HW checksum generation and checking regardless of whether NC-SI is used or not in case other variants out there need this. Signed-off-by:
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Benjamin Herrenschmidt authored
We test for aspeed chips to handle a couple of special cases, but we do that by checking the machine type which isn't right. Instead check the actual device compatible property. This also updates the dtsi files for the aspeed SoC to match. Signed-off-by:
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Benjamin Herrenschmidt authored
The documentation describes NETIF_F_IP_CSUM as deprecated so let's switch to NETIF_F_HW_CSUM and use the helper to handle unhandled protocols. Signed-off-by:
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David S. Miller authored
Ursula Braun says: ==================== net/smc: patches for net-next here are some patches for net/smc. Most important are improvements for socket closing. ==================== Signed-off-by: -
Ursula Braun authored
smc specifies IB_SEND_INLINE for IB_WR_SEND ib_post_send calls, but provides a mapped buffer to be sent. This is inconsistent, since IB_SEND_INLINE works without mapped buffer. Problem has not been detected in the past, because tests had been limited to Connect X3 cards from Mellanox, whose mlx4 driver just ignored the IB_SEND_INLINE flag. For now, the IB_SEND_INLINE flag is removed. Signed-off-by:
Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by:
Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by:
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Ursula Braun authored
Make sure sockets never accepted are removed cleanly. Signed-off-by:
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Ursula Braun authored
unhash is already called in sock_put_work. Remove the second call. Signed-off-by:
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Ursula Braun authored
State SMC_CLOSED should be reached only, if ConnClosed has been sent to the peer. If ConnClosed is received from the peer, a socket with shutdown SHUT_WR done, switches errorneously to state SMC_CLOSED, which means the peer socket is dangling. The local SMC socket is supposed to switch to state APPFINCLOSEWAIT to make sure smc_close_final() is called during socket close. Signed-off-by:
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Ursula Braun authored
Several state changes occur during SMC socket closing. Currently state changes triggered locally occur in process context with lock_sock() taken while state changes triggered by peer occur in tasklet context with bh_lock_sock() taken. bh_lock_sock() does not wait till a lock_sock(() task in process context is finished. This may lead to races in socket state transitions resulting in dangling SMC-sockets, or it may lead to duplicate SMC socket freeing. This patch introduces a closing worker to run all state changes under lock_sock(). Signed-off-by:
Dave Jones <davej@codemonkey.org.uk> Signed-off-by:
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Ursula Braun authored
Wake up reading file descriptors for a closing socket as well, otherwise some socket applications may stall. Signed-off-by:
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Ursula Braun authored
If peer indicates write_blocked, the cursor state of the received data should be send to the peer immediately (in smc_tx_consumer_update()). Afterwards the write_blocked indicator is cleared. If there is no free slot for another write request, sending is postponed to worker smc_tx_work, and the write_blocked indicator is not cleared. Therefore another clearing check is needed in smc_tx_work(). Signed-off-by:
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Ursula Braun authored
SMC requires an active ib port on the RoCE device. smc_pnet_find_roce_resource() determines the matching RoCE device port according to the configured PNET table. Do not return the found RoCE device port, if it is not flagged active. Signed-off-by:
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Ursula Braun authored
The global event handler is created only, if the ib_device has already been used by at least one link group. It is guaranteed that there exists the corresponding entry in the smc_ib_devices list. Get rid of this superfluous check. Signed-off-by:
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Ursula Braun authored
This patch removes an outdated comment. Signed-off-by:
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Joao Pinto authored
In the submission of the lastest multiple buffer patch set, this fix was lost. I am sending this patch to put it right again. The fix was originally proposed by Arnd Bergmann. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Joao Pinto <jpinto@synopsys.com> Signed-off-by:
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- 11 Apr, 2017 11 commits
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Willem de Bruijn authored
BPF helper functions access socket fields through skb->sk. This is not set in ingress cgroup and socket filters. The association is only made in skb_set_owner_r once the filter has accepted the packet. Sk is available as socket lookup has taken place. Temporarily set skb->sk to sk in these cases. Signed-off-by:
Willem de Bruijn <willemb@google.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Wei Yongjun authored
Fix the return value check which testing the wrong variable in devlink_dpipe_header_put(). Fixes: 1555d204 ("devlink: Support for pipeline debug (dpipe)") Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Acked-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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David S. Miller authored
Julian Wiedmann says: ==================== more s390/net updates here's a second batch of s390/net patches for net-next. A mixed bunch of qeth cleanups, and a few patches to add support for ETHTOOL_GLINKSETTINGS. ==================== Signed-off-by: -
Julian Wiedmann authored
prepare() and complete() are not implemented by any discipline, so just drop all the indirection. Signed-off-by:
Julian Wiedmann <jwi@linux.vnet.ibm.com> Reviewed-by:
Hans Wippel <hwippel@linux.vnet.ibm.com> Reviewed-by:
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Julian Wiedmann authored
LINK_MODE_* replaces the u32-limited SUPPORTED_* / ENABLED_* definitions. Signed-off-by:
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Julian Wiedmann authored
get_settings() is deprecated and lacks support for higher link speeds, so implement get_link_ksettings() instead. Signed-off-by:
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Julian Wiedmann authored
In preparation for moving to get_link_ksettings(), clean up how we build the supported and advertised port/speed masks. Signed-off-by:
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Julian Wiedmann authored
1. a buffer has 16 is_header flags, because that's its # of elements 2. replace the last occurrence of QETH_HEADER_SIZE, and remove it Signed-off-by:
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Julian Wiedmann authored
ndo_start_xmit() expects us to return netdev_tx_t here... Signed-off-by:
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Julian Wiedmann authored
'elements_needed' is not used in qeth_do_send_packet_fast(), so consequently remove it. Signed-off-by:
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Julian Wiedmann authored
Duplicated code. Signed-off-by:
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