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2018-10-01net/mlx5e: Expose function for building RSS paramsGavi Teitz2-4/+10
Towards enabling RSS for the vport representors, extract the procedure for building a device's RSS params, and expose the function. Signed-off-by: Gavi Teitz <gavi@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-01net/mlx5e: Provide explicit directive if to create inner indirect tirsOr Gerlitz3-12/+12
Change the driver functions that deal with creating indirect tirs to get a flag telling if inner ttc is desired. A pre-step for enabling rss on the vport representors, where inner ttc is not needed. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-01net/mlx5: E-Switch, Provide flow dest when creating vport rx ruleGavi Teitz3-7/+9
Currently the destination for the representor e-switch rx rule is a TIR number. Towards changing that to potentially be a flow table, as part of enabling RSS for representors, modify the signature of the related e-switch API to get a flow destination. Signed-off-by: Gavi Teitz <gavi@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-01net/mlx5e: Extract creation of rep's default flow ruleGavi Teitz1-9/+16
Cleaning up the flow of the representors' rx initialization, towards enabling RSS for the representors. Signed-off-by: Gavi Teitz <gavi@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-01net/mlx5e: Enable stateless offloads for VF representor netdevsGavi Teitz1-0/+10
Enabled checksum and TSO offloads for the representors, in order to increase their performance, which is required to increase the performance of flows that cannot be offloaded. Checksum offloads contribute to a general acceleration of all traffic (to around 150%), whereas the TSO offload contributes to a prominent acceleration of the representor's TX for traffic flows with larger than MTU sized packets (to around 200%). This is the usual case for TCP streams, as the PF, which serves as the uplink representor, and the VF representors employ GRO before forwarding the packets to the representor. GRO was enabled implicitly for the representors beforehand, and is explicitly enabled here to ensure that the representors preserve the performance boost it provides (of around 200%) when working in tandem with the TSO offload by the forwardee, which is the standard case as both the PF and the VF representors employ HW TSO. The impact of these changes can be seen in the following measurements taken on a setup of a VM over a VF, connected to OVS via the VF representor, to an external host: Before current changes: TCP Throughput [Gb/s] External host to VM ~ 10.5 VM to external host ~ 23.5 With just checksum offloads enabled: TCP Throughput [Gb/s] External host to VM ~ 14.9 VM to external host ~ 28.5 With the TSO offload also enabled: TCP Throughput [Gb/s] External host to VM ~ 30.5 Signed-off-by: Gavi Teitz <gavi@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-01net/mlx5e: Change VF representors' RQ typeGavi Teitz3-18/+25
The representors' RQ size was not large enough for them to achieve high enough performance, and therefore needed to be enlarged, while suffering a minimum hit to its memory usage. To achieve this the representors RQ size was increased, and its type was changed to be a striding RQ if it is supported. Towards that goal the following changes were made: * Extracted the sequence for setting the standard netdev's RQ parmas into a function * Replaced the sequence for setting the representor's RQ params with the standard sequence The impact of this change can be seen in the following measurements taken on a setup of a VM over a VF, connected to OVS via the VF representor, to an external host: Before current change: TCP Throughput [Gb/s] VM to external host ~ 7.2 With the current change (measured with a striding RQ): TCP Throughput [Gb/s] VM to external host ~ 23.5 Each representor now consumes 2 [MB] of memory for its packet buffers. Signed-off-by: Gavi Teitz <gavi@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-01net/mlx5e: Ethtool steering, Support masks for l3/l4 filtersOr Gerlitz1-40/+16
Allow using partial masks for L3 addresses and L4 ports across the place. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-09-29openvswitch: Use correct reply values in datapath and vport opsYifeng Sun1-10/+10
This patch fixes the bug that all datapath and vport ops are returning wrong values (OVS_FLOW_CMD_NEW or OVS_DP_CMD_NEW) in their replies. Signed-off-by: Yifeng Sun <pkusunyifeng@gmail.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29tls: Remove redundant vars from tls record structureVakul Garg2-53/+45
Structure 'tls_rec' contains sg_aead_in and sg_aead_out which point to a aad_space and then chain scatterlists sg_plaintext_data, sg_encrypted_data respectively. Rather than using chained scatterlists for plaintext and encrypted data in aead_req, it is efficient to store aad_space in sg_encrypted_data and sg_plaintext_data itself in the first index and get rid of sg_aead_in, sg_aead_in and further chaining. This requires increasing size of sg_encrypted_data & sg_plaintext_data arrarys by 1 to accommodate entry for aad_space. The code which uses sg_encrypted_data and sg_plaintext_data has been modified to skip first index as it points to aad_space. Signed-off-by: Vakul Garg <vakul.garg@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29tipc: buffer overflow handling in listener socketTung Nguyen3-6/+64
Default socket receive buffer size for a listener socket is 2Mb. For each arriving empty SYN, the linux kernel allocates a 768 bytes buffer. This means that a listener socket can serve maximum 2700 simultaneous empty connection setup requests before it hits a receive buffer overflow, and much fewer if the SYN is carrying any significant amount of data. When this happens the setup request is rejected, and the client receives an ECONNREFUSED error. This commit mitigates this problem by letting the client socket try to retransmit the SYN message multiple times when it sees it rejected with the code TIPC_ERR_OVERLOAD. Retransmission is done at random intervals in the range of [100 ms, setup_timeout / 4], as many times as there is room for within the setup timeout limit. Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29tipc: add SYN bit to connection setup messagesJon Maloy3-5/+22
Messages intended for intitating a connection are currently indistinguishable from regular datagram messages. The TIPC protocol specification defines bit 17 in word 0 as a SYN bit to allow sanity check of such messages in the listening socket, but this has so far never been implemented. We do that in this commit. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29tipc: refactor function tipc_sk_filter_connect()Jon Maloy1-58/+43
We refactor the function tipc_sk_filter_connect(), both to make it more readable and as a preparation for the next commit. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29tipc: refactor function tipc_sk_timeout()Jon Maloy1-24/+38
We refactor this function as a preparation for the coming commits in the same series. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29tipc: refactor function tipc_msg_reverse()Jon Maloy1-30/+28
The function tipc_msg_reverse() is reversing the header of a message while reusing the original buffer. We have seen at several occasions that this may have unfortunate side effects when the buffer to be reversed is a clone. In one of the following commits we will again need to reverse cloned buffers, so this is the right time to permanently eliminate this problem. In this commit we let the said function always consume the original buffer and replace it with a new one when applicable. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29tcp: up initial rmem to 128KB and SYN rwin to around 64KBYuchung Cheng3-46/+8
Previously TCP initial receive buffer is ~87KB by default and the initial receive window is ~29KB (20 MSS). This patch changes the two numbers to 128KB and ~64KB (rounding down to the multiples of MSS) respectively. The patch also simplifies the calculations s.t. the two numbers are directly controlled by sysctl tcp_rmem[1]: 1) Initial receiver buffer budget (sk_rcvbuf): while this should be configured via sysctl tcp_rmem[1], previously tcp_fixup_rcvbuf() always override and set a larger size when a new connection establishes. 2) Initial receive window in SYN: previously it is set to 20 packets if MSS <= 1460. The number 20 was based on the initial congestion window of 10: the receiver needs twice amount to avoid being limited by the receive window upon out-of-order delivery in the first window burst. But since this only applies if the receiving MSS <= 1460, connection using large MTU (e.g. to utilize receiver zero-copy) may be limited by the receive window. With this patch TCP memory configuration is more straight-forward and more properly sized to modern high-speed networks by default. Several popular stacks have been announcing 64KB rwin in SYNs as well. Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Wei Wang <weiwan@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29hns3: Another build fix.David S. Miller1-1/+1
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c: In function ‘hclge_get_sset_count’: drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c:496:31: error: ‘HNAE3_REVISION_ID_21’ undeclared (first use in this function); did you mean ‘FADT2_REVISION_ID’? if (hdev->pdev->revision >= HNAE3_REVISION_ID_21 || ^~~~~~~~~~~~~~~~~~~~ FADT2_REVISION_ID Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29hns3: Fix the build.David S. Miller1-1/+1
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c: In function ‘hns3_self_test’: drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c:278:15: error: ‘HNS3_SELF_TEST_TYPE_NUM’ undeclared (first use in this function); did you mean ‘HNS3_SELF_TEST_TPYE_NUM’? int st_param[HNS3_SELF_TEST_TYPE_NUM][2]; ^~~~~~~~~~~~~~~~~~~~~~~ HNS3_SELF_TEST_TPYE_NUM Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-28qed: fix spelling mistake "b_cb_registred" -> "b_cb_registered"Colin Ian King2-8/+8
Trivial fix to spelling mistake struct field name, rename it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-28net: sched: make function qdisc_free_cb() staticWei Yongjun1-1/+1
Fixes the following sparse warning: net/sched/sch_generic.c:944:6: warning: symbol 'qdisc_free_cb' was not declared. Should it be static? Fixes: 3a7d0d07a386 ("net: sched: extend Qdisc with rcu") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>