- 16 Oct, 2015 19 commits
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Jon Paul Maloy authored
During packet reception, the function tipc_link_rcv() adds its accepted packets to a temporary buffer queue, before finally splicing this queue into the lock protected input queue that will be delivered up to the socket layer. The purpose is to reduce potential contention on the input queue lock. However, since the vast majority of packets arrive in sequence, they will anyway be added one by one to the input queue, and the use of the temporary queue becomes a sub-optimization. The only case where this queue makes sense is when unpacking buffers from a bundle packet; here we want to avoid dozens of small buffers to be added individually to the lock-protected input queue in a tight loop. In this commit, we remove the general usage of the temporary queue, and keep it only for the packet unbundling case. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Acked-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Insu Yun authored
When allocation fails, mlx4_alloc_cmd_mailbox returns -ENOMEM. Since there is no case that mlx4_alloc_cmd_mailbox returns NULL, it needs to be checked by IS_ERR, not IS_ERR_OR_NULL Signed-off-by:
Insu Yun <wuninsu@gmail.com> Signed-off-by:
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Eric Dumazet authored
If using a sixtofour device on top of a bonding device, skb segmentation of TCP traffic is done right before calling bonding xmit, because bonding only enables TSO for IPv4. This patch improves single flow performance by about 120 % on my hosts, because segmentation is deferred right before calling slave xmit. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== mlxsw: Driver update, cleanups This patchset contains various cleanups and improvements in mlxsw driver. ==================== Signed-off-by: -
Ido Schimmel authored
The meaning of certain parameters in the profile passed to the device during initialization has changed, so update their documentation accordingly. Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Ido Schimmel authored
Previously, we trapped flooded and control packets using the same trap group. This can cause flooded packets to overflow the PCI bus and prevent control packets (e.g. STP, LACP) from getting to the CPU. Solve this by splitting the RX trap group to RX and control, which allows us to configure a policer on the first, thereby preventing it from overflowing the PCI bus. Signed-off-by:
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Ido Schimmel authored
The Host Trap Group Table (HTGT) register configures trap groups, which are populated with trap IDs using the Host PacKet Trap (HPKT) register. However, a trap ID can only be present inside one trap group (the last configured). Instead of passing both the trap group and ID for the function that packs HPKT, pass only the trap ID and derive from it the trap group. Signed-off-by:
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Jiri Pirko authored
Introduce separate helper for packing SPMS VIDs, as it can be used for multiple VIDs and not only for one as previous SPMS pack function provided. Signed-off-by:
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Ido Schimmel authored
Define max which would be needed later on. Signed-off-by:
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Jiri Pirko authored
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Jiri Pirko authored
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Jiri Pirko authored
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Jiri Pirko authored
Be symmetric with mlxsw_emad_init and don't use EMADs in mlxsw_emad_fini cleanup function. Use command interface instead. Signed-off-by:
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Jiri Pirko authored
Firmware accepts only limited number of mapping entries for MAP_FA command. In order to prevent overflow, introduce a limit and in case the number of entries is bigger, call MAP_FA multiple times. Signed-off-by:
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Jiri Pirko authored
Remove strict number check of queues count as various ASICs have different counts. Signed-off-by:
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Jiri Pirko authored
Use mlxsw_pci_sdq_count helper instead. Signed-off-by:
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Jiri Pirko authored
The count of CQs can be different for various ASICs, so just define maximal value and check for that. Signed-off-by:
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Jiri Pirko authored
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Ido Schimmel authored
With respect to a firmware change, the Switch Multicast ID (SMID) register is no longer needed, so the related configuration code can be removed. Signed-off-by:
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- 15 Oct, 2015 21 commits
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Lendacky, Thomas authored
A previous patch switched from using the system workqueue to the device workqueue for various operations. During a device restart the device workqueue is flushed so the restart cannot use this workqueue or else a deadlock results. Move the device restart back to using the system workqueue. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== switchdev: change locking This is something which I'm currently struggling with. Callers of attr_set and obj_add/del often hold not only RTNL, but also spinlock (bridge). So in that case, the driver implementing the op cannot sleep. The way rocker is dealing with this now is just to invoke driver operation and go out, without any checking or reporting of the operation status. Since it would be nice to at least put a warning in case the operation fails, it makes sense to do this in delayed work directly in switchdev core instead of implementing this in separate drivers. And that is what this patchset is introducing. So from now on, the locking of switchdev mod ops is consistent. Caller either holds rtnl mutex or in case it does not, caller sets defer flag, telling switchdev core to process the op later, in deferred queue. Function to force to process switchdev deferred ops can be called by op caller in appropriate location, for example after it releases spin lock, to force switchdev core to process pending ops. v1->v2: - rebased on current net-next head (including Scott's ageing patchset) v2->v3: - fixed comment s/of/or/ typo suggested by Nik v3->v4: - the actual patchset is sent instead of different branch I send in v3 :/ v4->v5: - added patch to "const" attr param - reworked deferred ops infrastructure (mainly patch number 1 and internal users (patch 3 and 5)) - resolves the issue pointed out by John ==================== Signed-off-by: -
Jiri Pirko authored
netdev_for_each_lower_dev has to be called with rtnl mutex held. So better enforce it in switchdev functions. Signed-off-by:
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Jiri Pirko authored
No need to avoid sleeping in switchdev callbacks now, as the switchdev core allows it. Signed-off-by:
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Jiri Pirko authored
Since spinlock is held here, defer the switchdev operation. Also, ensure that defered switchdev ops are processed before port master device is unlinked. Signed-off-by:
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Jiri Pirko authored
Similar to the attr usecase, the caller knows if he is holding RTNL and is in atomic section. So let the called to decide the correct call variant. This allows drivers to sleep inside their ops and wait for hw to get the operation status. Then the status is propagated into switchdev core. This avoids silent errors in drivers. Signed-off-by:
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Jiri Pirko authored
When object is used in deferred work, we cannot use pointers in switchdev object structures because the memory they point at may be already used by someone else. So rather do local copy of the value. Signed-off-by:
Scott Feldman <sfeldma@gmail.com> Reviewed-by:
John Fastabend <john.r.fastabend@intel.com> Signed-off-by:
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Jiri Pirko authored
Caller should know if he can call attr_set directly (when holding RTNL) or if he has to defer the att_set processing for later. This also allows drivers to sleep inside attr_set and report operation status back to switchdev core. Switchdev core then warns if status is not ok, instead of silent errors happening in drivers. Benefit from newly introduced switchdev deferred ops infrastructure. Signed-off-by:
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Jiri Pirko authored
Signed-off-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
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Jiri Pirko authored
Introduce infrastructure which will be used internally to defer ops. Note that the deferred ops are queued up and either are processed by scheduled work or explicitly by user calling deferred_process function. Signed-off-by:
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lipeng authored
this patch fixes a bug in hns driver. when we want to get statistic info by using ethtool -S, it shows us there are 3 wrong counters info. because the strings related to the registers are wrong. it needs to modify the strings which give us wrong info. Signed-off-by:
lipeng <lipeng321@huawei.com> Signed-off-by:
yankejian <yankejian@huawei.com> Signed-off-by:
Yisen Zhuang <yisen.zhuang@huawei.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-10-15 This series contains updates to i40e, i40evf and ixgbe. Emil changes the ixgbe driver to disable LRO by default in favor or GRO. Mark provides two changes for ixgbe, first fixes a semaphore issue when a reset never completes, it is necessary to retake the semaphore before returning. Jesse fixes up a missing function header comment variable reference. Then enables ethtool priv flags to control flow director at runtime. Neerav changes several i40e error messages to debug only since the messages were printing when there was no functional issue and were meant for debug only. Catherine changes the i40e driver to make only X722 support 100M SGMII, since it is the only device to actually support it. Anjali modifies the i40e/i40evf driver to add writeback on ITR offload support for X722 since the device has a way to work around the descriptor writeback issue. Mitch cleans up obsolete code. Also reduces the i40evf init time by shortening up the delays in the init task to aid in performance in load/unload tests and mitigates DMAR errors in VF enable/disable tests. Shannon modifies i40e to allow flow director sideband when the device is in MFP mode and only has one partition enabled, since we still have plenty of interrupts for managing the flow director activity. Also cleaned up flow director ATR control in debugfs since the priv flag has been added to our ethtool interface. Makes several general code cleanups of redundant or unnecessary code for i40e. ==================== Signed-off-by: -
Mark Rustad authored
Only call the internal_setup_link method when it is provided. This check is required for newer version parts. Signed-off-by:
Mark Rustad <mark.d.rustad@intel.com> Tested-by:
Darin Miller <darin.j.miller@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Catherine Sullivan authored
Bump. Change-ID: I8d9a99f320af43960deba8718eee2d6de50eaf46 Signed-off-by:
Catherine Sullivan <catherine.sullivan@intel.com> Tested-by:
Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by:
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Mitch Williams authored
Shorten up the delays in the init task, allowing the VF driver to initialize faster. This aids performance in load/unload tests and mitigates DMAR errors in VF enable/disable tests with absurdly short delays. In the real world, the VF driver will come up more quickly. The original values were set conservatively based on what we expected from the firmware in terms of performance. Now that the driver is in use and we know how well firmware responds to our requests, we can shorten these delays. Change-ID: Ibead77d34b19e8170e667c3f58bc14748bbc5bc9 Signed-off-by:
Mitch Williams <mitch.a.williams@intel.com> Tested-by:
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Shannon Nelson authored
Save a little stack space and remove unnecessary strncpy() with a little string pointer. Change-ID: Id2719d34710bfc273d3bb445fec085cd04276e88 Signed-off-by:
Shannon Nelson <shannon.nelson@intel.com> Tested-by:
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Anjali Singhai Jain authored
X722 will report Gen 1x1 in the PCI config space as it is on IOSF bus, so skip the PCI bus link/speed check. Change-ID: Icd5f5751dc7fb00dccf0d5dc5a0a644948e7062e Signed-off-by:
Anjali Singhai Jain <anjali.singhai@intel.com> Tested-by:
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Kevin Scott authored
Store off reported PHY capabilities in link_info structure. Change-ID: Ife0f037c26983ca985dbf79abf33f8f8791369e8 Signed-off-by:
Kevin Scott <kevin.c.scott@intel.com> Tested-by:
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Shannon Nelson authored
Remove a variable declaration inside an if block hiding an existing declaration at the start of the function. Also remove a forward function declaration that is no longer needed due to code re-organization. Change-ID: I12954668b722718074949c93d74cd20eaacd93e4 Signed-off-by:
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Shannon Nelson authored
Since the flow-director-atr priv flag was added to our ethtool interface, we don't need the on/off control in debugfs. Change-ID: Ib3b599916434ab30ccd40074e71d7a81609b5bb5 Signed-off-by:
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Shannon Nelson authored
Even though the device might be in MFP mode, if there's only one partition enabled, then we still have plenty of interrupts for managing the Flow Directory Sideband activity. This patch enables FD SB in this case. This patch also reverses the sense of the conditional in order to remove the negative logic. Change-ID: I9edf211a6219fc8d159b4be9964f9fd7f4e00bc0 Signed-off-by:
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