- 14 Feb, 2018 22 commits
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David S. Miller authored
Rahul Lakkireddy says: ==================== cxgb4: speed up reading on-chip memory This series of patches speed up reading on-chip memory (EDC and MC) by reading 64-bits at a time. Patch 1 reworks logic to read EDC and MC. Patch 2 adds logic to read EDC and MC 64-bits at a time. v2: - Dropped AVX CPU intrinsic instructions. - Use readq() to read 64-bits at a time. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Rahul Lakkireddy authored
Use readq() (via t4_read_reg64()) to read 64-bits at a time. Read residual in 32-bit multiples. Signed-off-by:
Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by:
Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by:
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Rahul Lakkireddy authored
Rework logic to read EDC and MC. Do 32-bit reads at a time. Signed-off-by:
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David Ahern authored
IPv4 uses set_lwt_redirect to set the lwtunnel redirect functions as needed. Move it to lwtunnel.h as lwtunnel_set_redirect and change IPv6 to also use it. Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== PTP support for DSA and mv88e6xxx driver. This patchset adds support for using the PTP hardware in switches supported by the mv88e6xxx driver. The code was produces in collaboration with Brandon Streiff doing the initial implementation, and then Richard Cochran and Andrew Lunn making further changes and cleanups. The code is sufficient to use ptp4l on a single DSA interface, either as a master or a slave. Due to the use of an MDIO bus to access the switch, reading hardware timestamps is slower than what ptp4l expects. Thus it is necessary to use the option --tx_timestamp_timeout=32. Heavy use of ethtool -S, or bridge fdb show can also upset ptp4l. Patches to address this will follow. Further work is requires to support bridges using Boundary Clock or Transparent Clock mode. Since the RFC, an overflow bug has been fixed. Brandon Streiff has also Acked-by: the updates to his initial patchset. ==================== Signed-off-by: -
Brandon Streiff authored
88E6341 devices default to timestamping at the PHY, but due to a hardware issue, timestamps via this component are unreliable. For this family, configure the PTP hardware to force the timestamping to occur at the MAC. Signed-off-by:
Brandon Streiff <brandon.streiff@ni.com> Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Brandon Streiff authored
This patch implements RX/TX timestamping support. The Marvell PTP hardware supports RX timestamping individual message types, but for simplicity we only support the EVENT receive filter since few if any clients bother with the more specific filter types. checkpatch and reverse Christmas tree changes by Andrew Lunn. Re-factor duplicated code paths and avoid IfOk anti-pattern, use the common ptp worker thread from the class layer and time stamp UDP/IPv4 frames as well as Layer-2 frame by Richard Cochran. Signed-off-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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Brandon Streiff authored
Forward the rx/tx timestamp machinery from the dsa infrastructure to the switch driver. On the rx side, defer delivery of skbs until we have an rx timestamp. This mimicks the behavior of skb_defer_rx_timestamp. On the tx side, identify PTP packets, clone them, and pass them to the underlying switch driver before we transmit. This mimicks the behavior of skb_tx_timestamp. Adjusted txstamp API to keep the allocation and freeing of the clone in the same central function by Richard Cochran Signed-off-by:
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Brandon Streiff authored
This patch adds support to the dsa slave network device so that switch drivers can implement the SIOC[GS]HWTSTAMP ioctls and the ethtool timestamp-info interface. Signed-off-by:
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Brandon Streiff authored
This patch adds support for configuring mv88e6xxx GPIO lines as PTP pins, so that they may be used for time stamping external events or for periodic output. Checkpatch and reverse Christmas tree fixes by Andrew Lunn Periodic output removed by Richard Cochran, until a better abstraction of a VCO is added to Linux in general. Signed-off-by:
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Brandon Streiff authored
MV88E6352 and later switches support GPIO control through the "Scratch & Misc" global2 register. (Older switches do too, though with a slightly different register interface. Only the 6352-style is implemented here.) Add a new file, global2_scratch.c, for operations in the Scratch & Misc space. Additionally, add a GPIO operations structure to present an abstract view over GPIO manipulation. Reverse Christmas tree and unsigned has been replaced with unsigned int by Andrew Lunn. Signed-off-by:
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Brandon Streiff authored
This patch adds basic support for exposing the 32-bit timestamp counter inside the mv88e6xxx switch as a ptp_clock. Adjfine implemented by Richard Cochran. Andrew Lunn: fix return value of PTP stub function. Signed-off-by:
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Brandon Streiff authored
This patch implements support for accessing the Precision Time Protocol and Time Application Interface registers via the AVB register interface in the Global 2 register. The register interface differs slightly between different models; older models use a 3-bit operations field, while newer models use a 2-bit field. The operations values and the special "global port" values are different between the two. This is a similar split to the differences in the "Ingress Rate" register between models, so, like in that case, we call the two variants "6352" and "6390" and create an ops structure to abstract between the two. checkpatch fixups by Andrew Lunn Signed-off-by:
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Brandon Streiff authored
Let the mv88e6xxx_g2_* register accessor functions be accessible outside of global2.c. Signed-off-by:
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Andrew Lunn authored
When NET_PTP_CLASSIFY is disabled, a stub function is required in order that the drivers compile. Signed-off-by:
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Eric Dumazet authored
배석진 reported that in some situations, packets for a given 5-tuple end up being processed by different CPUS. This involves RPS, and fragmentation. 배석진 is seeing packet drops when a SYN_RECV request socket is moved into ESTABLISH state. Other states are protected by socket lock. This is caused by a CPU losing the race, and simply not caring enough. Since this seems to occur frequently, we can do better and perform a second lookup. Note that all needed memory barriers are already in the existing code, thanks to the spin_lock()/spin_unlock() pair in inet_ehash_insert() and reqsk_put(). The second lookup must find the new socket, unless it has already been accepted and closed by another cpu. Note that the fragmentation could be avoided in the first place by use of a correct TCP MSS option in the SYN{ACK} packet, but this does not mean we can not be more robust. Many thanks to 배석진 for a very detailed analysis. Reported-by:배석진 <soukjin.bae@samsung.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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David S. Miller authored
David Ahern says: ==================== net: dev: Make protocol ptr dependent on CONFIG Found these in a branch from 3-years ago. Still relevant today. Make decnet, ax25, and atalk ptrs in net_device based on their respective CONFIG. ==================== Signed-off-by: -
David Ahern authored
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David Ahern authored
Signed-off-by:
David Ahern <dsa@cumulusnetworks.com> Signed-off-by:
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David Ahern authored
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David Ahern authored
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Jeff Kirsher says: ==================== 40GbE Intel Wired LAN Driver Updates 2018-02-13 This series contains updates to i40e and i40evf. Wei Yongjun fixes a function that needed to be "static". Also fixes the use of GFP_KERNEL to GFP_ATOMIC when we have taken a spinlock. Mitch cleans up several info messages to not include the memory addresses being used on the off chance this information could be used maliciously. Alan provides several fixes to the broadcast filters starting with the triggering of overflow promiscuous in circumstances where we run out of space for broadcast filters to prevent traffic from being unexpectedly dropped. Refactored the code to improve the readability and maintainability when we are concerned about when and how overflow promiscuous is changed. Harshitha cleans up a message to make it more clear on what is being reset, so users are not confused and think the PF is resetting. Dave fixes an issue where the MAC, firmware version and NPAR checks used to determine if shutting off the firmware LLDP engine is supported or not, instead set a hardware flag which ethtool can use. Jake updates the VF driver to use __dev_uc_sync and __dev_mc_sync, like the PF driver. ==================== Signed-off-by:
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- 13 Feb, 2018 18 commits
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David Ahern authored
Add test cases verifying FIB onlink commands work as expected in various conditions - IPv4, IPv6, main table, and VRF. Signed-off-by:
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Harshitha Ramamurthy authored
When the PF resets the VF, the VF puts out a warning message indicating that the VF received a reset message from the PF. Make this message more clear so that we do not mistakenly think that the PF is undergoing a reset. Signed-off-by:
Harshitha Ramamurthy <harshitha.ramamurthy@intel.com> Tested-by:
Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jacob Keller authored
Similar to changes done to the PF driver in commit 6622f5cd ("i40e: make use of __dev_uc_sync and __dev_mc_sync"), replace our home-rolled method for updating the internal status of MAC filters with __dev_uc_sync and __dev_mc_sync. These new functions use internal state within the netdev struct in order to efficiently break the question of "which filters in this list need to be added or removed" into singular "add this filter" and "delete this filter" requests. This vastly improves our handling of .set_rx_mode especially with large number of MAC filters being added to the device, and even results in a simpler .set_rx_mode handler. Under some circumstances, such as when attached to a bridge, we may receive a request to delete our own permanent address. Prevent deletion of this address during i40evf_addr_unsync so that we don't accidentally stop receiving traffic. Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Tested-by:
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Dave Ertman authored
The MAC, FW Version and NPAR check used to determine if shutting off the FW LLDP engine is supported is not using the usual feature check mechanism. This patch fixes the problem by moving the feature check to i40e_sw_init in order to set a flag in pf->hw_features that ethtool will use for priv_flags disable operation. Signed-off-by:
Dave Ertman <david.m.ertman@intel.com> Tested-by:
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Alan Brady authored
Broadcast filters can now cause overflow promiscuous to trigger when adding "too many" VLANs to all the ports of a device and the driver needs a way to exit overflow promiscuous once triggered. Currently the driver looks to see if there are "too many" filters and/or we have any failed filters to determine when it is safe to exit overflow promiscuous. If we trigger overflow promiscuous with broadcast filters, any new filters added will be "auto-failed" until we exit overflow promiscuous. Since the user can't manually remove the failed broadcast filters for VLANs (nor should we expect the user to do such), there is no way to exit overflow promiscuous without reloading the driver. The easiest way to do this is to remove the shortcut to "auto-fail" filters in overflow promiscuous. If the user removes the VLANs, the failed filters will be removed and since we're no longer "auto-failing" new filters, we'll eventually get a good set of filters and exit overflow promiscuous. This has the side benefit of making filter state more explicit in that if a filter says it's failed we know for a fact it failed and not just assuming it will if we're in overflow promiscuous. This is nice because if the user removes some filters and then adds some, even if we're in overflow promiscuous, the filter might succeed; we were just assuming it won't because the user hasn't rectified other existing failed filters. Signed-off-by:
Alan Brady <alan.brady@intel.com> Tested-by:
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Alan Brady authored
This code here is quite complex and easy to screw up. Let's see if we can't improve the readability and maintainability a bit. This refactors out promisc_changed into two variables 'old_overflow' and 'new_overflow' which makes it a bit clearer when we're concerned about when and how overflow promiscuous is changed. This also makes so that we no longer need to pass a boolean pointer to i40e_aqc_add_filters. Instead we can simply check if we changed the overflow promiscuous flag since the function start. Signed-off-by:
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Harshitha Ramamurthy authored
When iterating through the linked list of VLAN filters, make the iterator the same type as that of the linked list. Signed-off-by:
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Alan Brady authored
When adding a bunch of VLANs to all the ports on a device, it's possible to run out of space for broadcast filters. The driver should trigger overflow promiscuous in this circumstance to prevent traffic from being unexpectedly dropped. Signed-off-by:
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Mitch Williams authored
Could a Bad Person do Bad Things to a server if they found these addresses printed in the log? Who knows? But let's not take that risk. Remove pointers from a bunch of printks. In some cases, I was able to adjust the message to indicate whether or not the value was null. In others, I just removed the entire message as there was really no hope of saving it. Signed-off-by:
Mitch Williams <mitch.a.williams@intel.com> Tested-by:
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Wei Yongjun authored
A spin lock is taken here so we should use GFP_ATOMIC. Fixes: 504398f0 ("i40evf: use spinlock to protect (mac|vlan)_filter_list") Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Acked-by:
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Wei Yongjun authored
Fixes the following sparse warning: drivers/net/ethernet/intel/i40e/i40e_main.c:5440:5: warning: symbol 'i40e_get_link_speed' was not declared. Should it be static? Signed-off-by:
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David S. Miller authored
David Ahern says: ==================== selftests: fib_tests: simplifications, verbosity and a race Improve efficiency of fib_tests.sh and make the test result more verbose, from this summary: $ fib_tests.sh is failing in a VM: $ fib_tests.sh Running netdev unregister tests PASS: unicast route test PASS: multipath route test Running netdev down tests PASS: unicast route test PASS: multipath route test Running netdev carrier change tests PASS: local route carrier test FAIL: unicast route carrier test where a single entry actually corresponds to many checks to a much more verbse output that clarifies test cases: $fib_tests.sh Single path route carrier test .... Carrier down IPv4 fibmatch [ OK ] IPv6 fibmatch [ OK ] IPv4 linkdown flag set [FAIL] IPv6 linkdown flag set [FAIL] Second address added with carrier down IPv4 fibmatch [ OK ] IPv6 fibmatch [ OK ] IPv4 linkdown flag set [FAIL] IPv6 linkdown flag set [ OK ] And then fix the race in changing carrier down on dummy device to checking the corresponding routes. ==================== Signed-off-by: -
David Ahern authored
sleep for a second after setting carrier down to allow linkwatch to propagate the change to the routing stack via netdev_state_change. As it stands there is a race setting carrier down on the dummy device and then checking the linkdown flag in the routes. Signed-off-by:
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David Ahern authored
Move setup and teardown of testns and dummy0 to helpers. Signed-off-by:
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David Ahern authored
fib_tests.sh is failing in a VM: $ fib_tests.sh Running netdev unregister tests PASS: unicast route test PASS: multipath route test Running netdev down tests PASS: unicast route test PASS: multipath route test Running netdev carrier change tests PASS: local route carrier test FAIL: unicast route carrier test The last test corresponds to fib_carrier_unicast_test which 12 places that could be failing. Be more verbose in the output so a failure is easier to track down and separate test setup failures with set -e and set +e pairs. With the verbose logging it is easier to see which checks are failing: $fib_tests.sh Single path route carrier test .... Carrier down IPv4 fibmatch [ OK ] IPv6 fibmatch [ OK ] IPv4 linkdown flag set [FAIL] IPv6 linkdown flag set [FAIL] Second address added with carrier down IPv4 fibmatch [ OK ] IPv6 fibmatch [ OK ] IPv4 linkdown flag set [FAIL] IPv6 linkdown flag set [ OK ] Signed-off-by: -
David Ahern authored
'ip netns exec testns ip' is more efficiently handled using 'ip -netns'; runs the ip command after switching the namespace and avoids an exec. Signed-off-by:
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David Ahern authored
Do not export fib_multipath_hash or fib_select_path; both are only used by core ipv4 code. Signed-off-by:
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David Ahern authored
If flow oif is set and it is not an l3mdev, then fib_select_path can jump to the source address check. Signed-off-by:
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