- 16 Jul, 2018 40 commits
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Gustavo A. R. Silva authored
Make use of the swap macro and remove unnecessary variable *temp*. This makes the code easier to read and maintain. Also, slightly refactor some code due to the removal of *temp*. This code was detected with the help of Coccinelle. Signed-off-by:
Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Heiner Kallweit says: ==================== net: phy: add functionality to speed down PHY when waiting for WoL packet Some network drivers include functionality to speed down the PHY when suspending and just waiting for a WoL packet because this saves energy. This patch is based on our recent discussion about factoring out this functionality to phylib. First user will be the r8169 driver. v2: - add warning comment to phy_speed_down regarding usage of sync = false - remove sync parameter from phy_speed_up ==================== Signed-off-by: -
Heiner Kallweit authored
Some network drivers include functionality to speed down the PHY when suspending and just waiting for a WoL packet because this saves energy. This functionality is quite generic, therefore let's factor it out to phylib. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Heiner Kallweit authored
This functionality will also be needed in subsequent patches of this series, therefore factor it out to a helper. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Dave Watson authored
Add selftests for tls socket. Tests various iov and message options, poll blocking and nonblocking behavior, partial message sends / receives, and control message data. Tests should pass regardless of if TLS is enabled in the kernel or not, and print a warning message if not. Signed-off-by:
Dave Watson <davejwatson@fb.com> Signed-off-by:
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David S. Miller authored
Tobin C. Harding says: ==================== docs: Fix failover build warnings This is my first patch set to net-next. Please shout loud and clear if I've botched anything. Recently failover and net_failover modules were added to the mainline. Documentation was included in rst format but they were not added to the toctree in `networking/index.rst`. Also building docs for net_failover is currently emitting a few warnings. Patch 1 adds failover and net_failover to the index toctree Patch 2 fixes the build warnings for net_failover I haven't been super active on netdev list so if there is some reason I missed why these files are not in the index please do say so. Has there been any discussion on preferred order for the toctree index list? I just added them to the bottom of the list. ==================== Signed-off-by: -
Tobin C. Harding authored
Currently building the net_failover docs causes a bunch of warnings to be emitted. These warnings are all related to indentation and correctly highlight missing '::' (for code sections). It looks, from other rst files in Documentation, that the first column should be indented 2 spaces. Add '::' before code snippets and indent all snippets uniformly starting with 2 spaces. Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Tobin C. Harding <me@tobin.cc> Signed-off-by:
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Tobin C. Harding authored
Currently we have rst format docs for the failover and net_failover modules however these docs are not linked to within the index. Add `failover` and `net_failover` to the networking documentation index. Signed-off-by:
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David S. Miller authored
Salil Mehta says: ==================== Bug fixes and some minor changes to HNS3 driver This patch-set presents some fixes and minor changes to the HNS3 Ethernet Driver. ==================== Signed-off-by: -
Fuyun Liang authored
Actually, hclge_get_ring_chain_from_mbx is used to get ring type, tqp id, and int_gl index from mailbox message. So the comments is incorrect. This patch fixes it. Fixes: dde1a86e ("net: hns3: Add mailbox support to PF driver") Signed-off-by:
Fuyun Liang <liangfuyun1@huawei.com> Signed-off-by:
Peng Li <lipeng321@huawei.com> Signed-off-by:
Salil Mehta <salil.mehta@huawei.com> Signed-off-by:
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Fuyun Liang authored
HCLGE_INT_GL_IDX_M and HCLGE_INT_GL_IDX_S are used to set fireware cmd. When getting int_gl value from mailbox message, we should use HNAE3_RING_GL_IDX_M and HNAE3_RING_GL_IDX_S. Fixes: 79eee410 ("net: hns3: add int_gl_idx setup for VF") Signed-off-by:
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Yunsheng Lin authored
handle->reset_level is assigned to HNAE3_NONE_RESET when client is initialized, if a tx timeout happens right after initialization, then handle->reset_level is not resetted to HNAE3_FUNC_RESET in hclge_reset_event, which will cause reset event not properly handled problem. This patch fixes it by setting handle->reset_level properly when client is initialized. Fixes: 6d4c3981 ("net: hns3: Changes to make enet watchdog timeout func common for PF/VF") Signed-off-by:
Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by:
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Huazhong Tan authored
The configuration of the ring will be used to reinitialize the ring after the hardware reset is completed. So we should not release and reacquire this configuration during reset. Fixes: bb6b94a8 ("net: hns3: Add reset interface implementation in client") Signed-off-by:
Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by:
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Huazhong Tan authored
When doing reset, netdev has not been brought up is not an error, it means that we do not need do the stop operation, so just return zero. Fixes: 76ad4f0e ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC") Signed-off-by:
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Huazhong Tan authored
According to hardware's description, driver should get reset event from VECTOR0_PF_OTHER_INT_ST(0x20800) instead of VECTOR0_PF_OTHER_INT_SRC(0x20700). Signed-off-by:
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Huazhong Tan authored
Netdevice reset should not be requested frequently, a new one must wait a moment since there may be some work not completed. Signed-off-by:
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Huazhong Tan authored
Since current locking was not covering certain code where netdev was being accessed or manipulated, this patch fixes it. Signed-off-by:
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Huazhong Tan authored
According to hardware's description, the head pointer register should be written before the tail pointer register while doing command queue initialization. Signed-off-by:
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David S. Miller authored
Boris Pismenny says: ==================== TLS offload rx, netdev & mlx5 The following series provides TLS RX inline crypto offload. v5->v4: - Remove the Kconfig to mutually exclude both IPsec and TLS v4->v3: - Remove the iov revert for zero copy send flow v2->v3: - Fix typo - Adjust cover letter - Fix bug in zero copy flows - Use network byte order for the record number in resync - Adjust the sequence provided in resync v1->v2: - Fix bisectability problems due to variable name changes - Fix potential uninitialized return value This series completes the generic infrastructure to offload TLS crypto to a network devices. It enables the kernel TLS socket to skip decryption and authentication operations for SKBs marked as decrypted on the receive side of the data path. Leaving those computationally expensive operations to the NIC. This infrastructure doesn't require a TCP offload engine. Instead, the NIC decrypts a packet's payload if the packet contains the expected TCP sequence number. The TLS record authentication tag remains unmodified regardless of decryption. If the packet is decrypted successfully and it contains an authentication tag, then the authentication check has passed. Otherwise, if the authentication fails, then the packet is provided unmodified and the KTLS layer is responsible for handling it. Out-Of-Order TCP packets are provided unmodified. As a result, in the slow path some of the SKBs are decrypted while others remain as ciphertext. The GRO and TCP layers must not coalesce decrypted and non-decrypted SKBs. At the worst case a received TLS record consists of both plaintext and ciphertext packets. These partially decrypted records must be reencrypted, only to be decrypted. The notable differences between SW KTLS and NIC offloaded TLS implementations are as follows: 1. Partial decryption - Software must handle the case of a TLS record that was only partially decrypted by HW. This can happen due to packet reordering. 2. Resynchronization - tls_read_size calls the device driver to resynchronize HW whenever it lost track of the TLS record framing in the TCP stream. The infrastructure should be extendable to support various NIC offload implementations. However it is currently written with the implementation below in mind: The NIC identifies packets that should be offloaded according to the 5-tuple and the TCP sequence number. If these match and the packet is decrypted and authenticated successfully, then a syndrome is provided to software. Otherwise, the packet is unmodified. Decrypted and non-decrypted packets aren't coalesced by the network stack, and the KTLS layer decrypts and authenticates partially decrypted records. The NIC provides an indication whenever a resync is required. The resync operation is triggered by the KTLS layer while parsing TLS record headers. Finally, we measure the performance obtained by running single stream iperf with two Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz machines connected back-to-back with Innova TLS (40Gbps) NICs. We compare TCP (upper bound) and KTLS-Offload running both in Tx and Rx. The results show that the performance of offload is comparable to TCP. | Bandwidth (Gbps) | CPU Tx (%) | CPU rx (%) TCP | 28.8 | 5 | 12 KTLS-Offload-Tx-Rx | 28.6 | 7 | 14 Paper: https://netdevconf.org/2.2/papers/pismenny-tlscrypto-talk.pdf ==================== Signed-off-by: -
Boris Pismenny authored
This patch fixes the byte count indication in CQE for processed IPsec packets that contain a metadata header. Signed-off-by:
Boris Pismenny <borisp@mellanox.com> Signed-off-by:
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Boris Pismenny authored
This patch adds common functions to handle mellanox metadata headers. These functions are used by IPsec and TLS to process FPGA metadata. Signed-off-by:
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Boris Pismenny authored
This patch enables TLS Rx based on available HW capabilities. Signed-off-by:
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Boris Pismenny authored
This patch adds software statistics for TLS to count important events. Signed-off-by:
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Boris Pismenny authored
Implement the TLS rx offload data path according to the requirements of the TLS generic NIC offload infrastructure. Special metadata ethertype is used to pass information to the hardware. When hardware loses synchronization a special resync request metadata message is used to request resync. Signed-off-by:
Ilya Lesokhin <ilyal@mellanox.com> Signed-off-by:
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Boris Pismenny authored
Add the mlx5 implementation of the TLS Rx routines to add/del TLS contexts, also add the tls_dev_resync_rx routine to work with the TLS inline Rx crypto offload infrastructure. Signed-off-by:
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Boris Pismenny authored
In Innova TLS, TLS contexts are added or deleted via a command message over the SBU connection. The HW then sends a response message over the same connection. Complete the implementation for Innova TLS (FPGA-based) hardware by adding support for rx inline crypto offload. Signed-off-by:
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Boris Pismenny authored
For symmetry, we rename mlx5e_tls_offload_context to mlx5e_tls_offload_context_tx before we add mlx5e_tls_offload_context_rx. Signed-off-by:
Aviad Yehezkel <aviadye@mellanox.com> Reviewed-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
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Boris Pismenny authored
zerocopy_from_iter iterates over the message, but it doesn't revert the updates made by the iov iteration. This patch fixes it. Now, the iov can be used after calling zerocopy_from_iter. Fixes: 3c4d7559 ("tls: kernel TLS support") Signed-off-by:
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Boris Pismenny authored
This patch completes the generic infrastructure to offload TLS crypto to a network device. It enables the kernel to skip decryption and authentication of some skbs marked as decrypted by the NIC. In the fast path, all packets received are decrypted by the NIC and the performance is comparable to plain TCP. This infrastructure doesn't require a TCP offload engine. Instead, the NIC only decrypts packets that contain the expected TCP sequence number. Out-Of-Order TCP packets are provided unmodified. As a result, at the worst case a received TLS record consists of both plaintext and ciphertext packets. These partially decrypted records must be reencrypted, only to be decrypted. The notable differences between SW KTLS Rx and this offload are as follows: 1. Partial decryption - Software must handle the case of a TLS record that was only partially decrypted by HW. This can happen due to packet reordering. 2. Resynchronization - tls_read_size calls the device driver to resynchronize HW after HW lost track of TLS record framing in the TCP stream. Signed-off-by:
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Boris Pismenny authored
This patch allows tls_set_sw_offload to fill the context in case it was already allocated previously. We will use it in TLS_DEVICE to fill the RX software context. Signed-off-by:
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Boris Pismenny authored
This patch splits tls_sw_release_resources_rx into two functions one which releases all inner software tls structures and another that also frees the containing structure. In TLS_DEVICE we will need to release the software structures without freeeing the containing structure, which contains other information. Signed-off-by:
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Boris Pismenny authored
Previously, decrypt_skb also updated the TLS context. Now, decrypt_skb only decrypts the payload using the current context, while decrypt_skb_update also updates the state. Later, in the tls_device Rx flow, we will use decrypt_skb directly. Signed-off-by:
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Boris Pismenny authored
For symmetry, we rename tls_offload_context to tls_offload_context_tx before we add tls_offload_context_rx. Signed-off-by:
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Boris Pismenny authored
Prevent coalescing of decrypted and encrypted SKBs in GRO and TCP layer. Signed-off-by:
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Boris Pismenny authored
Add new netdev tls op for resynchronizing HW tls context Signed-off-by:
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Ilya Lesokhin authored
This patch adds a netdev feature to configure TLS RX inline crypto offload. Signed-off-by:
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Boris Pismenny authored
The decrypted bit is propogated to cloned/copied skbs. This will be used later by the inline crypto receive side offload of tls. Signed-off-by:
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David S. Miller authored
Maxime Chevallier says: ==================== net: mvpp2: add debugfs interface The PPv2 Header Parser and Classifier are not straightforward to debug, having easy access to some of the many lookup tables configuration is helpful during development and debug. This series adds a basic debugfs interface, allowing to read data from the Header Parser and some of the Classifier tables. For now, the interface is read-only, and contains only some basic info. This was actually used during RSS development, and might be useful to troubleshoot some issues we might find. The first patch of the series converts the mvpp2 files to SPDX, which eases adding the new debugfs dedicated file. The second patch adds the interface, and exposes basic Header Parser data. The 3rd patch adds a hit counter for the Header Parser TCAM. The 4th patch exposes classifier info. The 5th patch adds some hit counters for some of the classifier engines. Changes since V1: - Rebased on the lastest net-next - Made cls_flow_get non static so that it can be used in mvpp2_debugfs ==================== Signed-off-by: -
Maxime Chevallier authored
The classification operations that are used for RSS make use of several lookup tables. Having hit counters for these tables is really helpful to determine what flows were matched by ingress traffic, and see the path of packets among all the classifier tables. This commit adds hit counters for the 3 tables used at the moment : - The decoding table (also called lookup_id table), that links flows identified by the Header Parser to the flow table. There's one entry per flow, located at : .../mvpp2/<controller>/flows/XX/dec_hits Note that there are 21 flows in the decoding table, whereas there are 52 flows in the Header Parser. That's because there are several kind of traffic that will match a given flow. Reading the hit counter from one sub-flow will clear all hit counter that have the same flow_id. This also applies to the flow_hits. - The flow table, that contains all the different lookups to be performed by the classifier for each packet of a given flow. The match is done on the first entry of the flow sequence. - The C2 engine entries, that are used to assign the default rx queue, and enable or disable RSS for a given port. There's one entry per flow, located at: .../mvpp2/<controller>/flows/XX/flow_hits There is one C2 entry per port, so the c2 hit counter is located at : .../mvpp2/<controller>/ethX/c2_hits All hit counter values are 16-bits clear-on-read values. Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by:
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Maxime Chevallier authored
The classifier configuration for RSS is quite complex, with several lookup tables being used. This commit adds useful info in debugfs to see how the different tables are configured : Added 2 new entries in the per-port directory : - .../eth0/default_rxq : The default rx queue on that port - .../eth0/rss_enable : Indicates if RSS is enabled in the C2 entry Added the 'flows' directory : It contains one entry per sub-flow. a 'sub-flow' is a unique path from Header Parser to the flow table. Multiple sub-flows can point to the same 'flow' (each flow has an id from 8 to 29, which is its index in the Lookup Id table) : - .../flows/00/... /01/... ... /51/id : The flow id. There are 21 unique flows. There's one flow per combination of the following parameters : - L4 protocol (TCP, UDP, none) - L3 protocol (IPv4, IPv6) - L3 parameters (Fragmented or not) - L2 parameters (Vlan tag presence or not) .../type : The flow type. This is an even higher level flow, that we manipulate with ethtool. It can be : "udp4" "tcp4" "udp6" "tcp6" "ipv4" "ipv6" "other". .../eth0/... .../eth1/engine : The hash generation engine used for this flow on the given port .../hash_opts : The hash generation options indicating on what data we base the hash (vlan tag, src IP, src port, etc.) Signed-off-by:
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