- 20 Jun, 2023 2 commits
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Rahul Rameshbabu authored
The mlx5_core driver has implemented ptp clock driver functionality but lacked documentation about the PTP devices. This patch adds information about the Mellanox device family. Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Rahul Rameshbabu authored
.adjphase expects a PHC to use an internal servo algorithm to correct the provided phase offset target in the callback. Implementation of the internal servo algorithm are defined by the individual devices. Cc: Jakub Kicinski <kuba@kernel.org> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 19 Jun, 2023 6 commits
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Jakub Kicinski authored
Kuniyuki Iwashima says: ==================== ipv6: Random cleanup for Extension Header. This series (1) cleans up pskb_may_pull() in some functions, where needed data are already pulled by their caller, (2) removes redundant multicast test, and (3) optimises reload timing of the header. ==================== Link: https://lore.kernel.org/r/20230614230107.22301-1-kuniyu@amazon.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima authored
ipv6_destopt_rcv() and ipv6_parse_hopopts() pulls these data - Hop-by-Hop/Destination Options Header : 8 - Hdr Ext Len : skb_transport_header(skb)[1] << 3 and calls ip6_parse_tlv(), so it need not check if skb_headlen() is less than skb_transport_offset(skb) + (skb_transport_header(skb)[1] << 3). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima authored
We need not reload hdr in ipv6_srh_rcv() unless we call pskb_expand_head(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima authored
ipv6_rthdr_rcv() pulls these data - Segment Routing Header : 8 - Hdr Ext Len : skb_transport_header(skb)[1] << 3 needed by ipv6_srh_rcv(), so pskb_pull() in ipv6_srh_rcv() never fails and can be replaced with skb_pull(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima authored
ipv6_rpl_srh_rcv() checks if ipv6_hdr(skb)->daddr or ohdr->rpl_segaddr[i] is the multicast address with ipv6_addr_type(). We have the same check for ipv6_hdr(skb)->daddr in ipv6_rthdr_rcv(), so we need not recheck it in ipv6_rpl_srh_rcv(). Also, we should use ipv6_addr_is_multicast() for ohdr->rpl_segaddr[i] instead of ipv6_addr_type(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima authored
As Eric Dumazet pointed out [0], ipv6_rthdr_rcv() pulls these data - Segment Routing Header : 8 - Hdr Ext Len : skb_transport_header(skb)[1] << 3 needed by ipv6_rpl_srh_rcv(). We can remove pskb_may_pull() and replace pskb_pull() with skb_pull() in ipv6_rpl_srh_rcv(). Link: https://lore.kernel.org/netdev/CANn89iLboLwLrHXeHJucAqBkEL_S0rJFog68t7wwwXO-aNf5Mg@mail.gmail.com/ [0] Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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- 18 Jun, 2023 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller authored
mlx5-updates-2023-06-16 1) Added a new event handler to firmware sync reset, which is used to support firmware sync reset flow on smart NIC. Adding this new stage to the flow enables the firmware to ensure host PFs unload before ECPFs unload, to avoid race of PFs recovery. 2) Debugfs for mlx5 eswitch bridge offloads 3) Added two new counters for vport stats 4) Minor Fixups and cleanups for net-next branch Signed-off-by: David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored
The double ifdefs (one for the variable declaration and one around the code) are quite aesthetically displeasing. Factor this code out into a helper for easier wrapping. This will become even more ugly when another skb ext comparison is added in the future. The resulting machine code looks the same, the compiler seems to try to use %rax more and some blocks more around but I haven't spotted minor differences. Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Christophe JAILLET authored
Use devm_regulator_get_enable_optional() instead of hand writing it. It saves some line of code. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Walle authored
Mention that the interrupt line is just asserted for a random period of time, not the entire time. Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Walle <mwalle@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
In blamed commit, we missed the fact that ip6_validate_gw() could change dev under us from ip6_route_check_nh() In this fix, I use GFP_ATOMIC in order to not pass too many additional arguments to ip6_validate_gw() and ip6_route_check_nh() only for a rarely used debug feature. syzbot reported: refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 0 PID: 5006 at lib/refcount.c:31 refcount_warn_saturate+0x1d7/0x1f0 lib/refcount.c:31 Modules linked in: CPU: 0 PID: 5006 Comm: syz-executor403 Not tainted 6.4.0-rc5-syzkaller-01229-g97c5209b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:refcount_warn_saturate+0x1d7/0x1f0 lib/refcount.c:31 Code: 05 fb 8e 51 0a 01 e8 98 95 38 fd 0f 0b e9 d3 fe ff ff e8 ac d9 70 fd 48 c7 c7 00 d3 a6 8a c6 05 d8 8e 51 0a 01 e8 79 95 38 fd <0f> 0b e9 b4 fe ff ff 48 89 ef e8 1a d7 c3 fd e9 5c fe ff ff 0f 1f RSP: 0018:ffffc900039df6b8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888026d71dc0 RSI: ffffffff814c03b7 RDI: 0000000000000001 RBP: ffff888146a505fc R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 1ffff9200073bedc R13: 00000000ffffffef R14: ffff888146a505fc R15: ffff8880284eb5a8 FS: 0000555556c88300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004585c0 CR3: 000000002b1b1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __refcount_dec include/linux/refcount.h:344 [inline] refcount_dec include/linux/refcount.h:359 [inline] ref_tracker_free+0x539/0x820 lib/ref_tracker.c:236 netdev_tracker_free include/linux/netdevice.h:4097 [inline] netdev_put include/linux/netdevice.h:4114 [inline] netdev_put include/linux/netdevice.h:4110 [inline] fib6_nh_init+0xb96/0x1bd0 net/ipv6/route.c:3624 ip6_route_info_create+0x10f3/0x1980 net/ipv6/route.c:3791 ip6_route_add+0x28/0x150 net/ipv6/route.c:3835 ipv6_route_ioctl+0x3fc/0x570 net/ipv6/route.c:4459 inet6_ioctl+0x246/0x290 net/ipv6/af_inet6.c:569 sock_do_ioctl+0xcc/0x230 net/socket.c:1189 sock_ioctl+0x1f8/0x680 net/socket.c:1306 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] Fixes: 70f7457a ("net: create device lookup API with reference tracking") Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: David Ahern <dsahern@kernel.org> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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David Howells authored
When af_alg_sendmsg() calls extract_iter_to_sg(), it passes MAX_SGL_ENTS as the maximum number of elements that may be written to, but some of the elements may already have been used (as recorded in sgl->cur), so extract_iter_to_sg() may end up overrunning the scatterlist. Fix this to limit the number of elements to "MAX_SGL_ENTS - sgl->cur". Note: It probably makes sense in future to alter the behaviour of extract_iter_to_sg() to stop if "sgtable->nents >= sg_max" instead, but this is a smaller fix for now. The bug causes errors looking something like: BUG: KASAN: slab-out-of-bounds in sg_assign_page include/linux/scatterlist.h:109 [inline] BUG: KASAN: slab-out-of-bounds in sg_set_page include/linux/scatterlist.h:139 [inline] BUG: KASAN: slab-out-of-bounds in extract_bvec_to_sg lib/scatterlist.c:1183 [inline] BUG: KASAN: slab-out-of-bounds in extract_iter_to_sg lib/scatterlist.c:1352 [inline] BUG: KASAN: slab-out-of-bounds in extract_iter_to_sg+0x17a6/0x1960 lib/scatterlist.c:1339 Fixes: bf63e250 ("crypto: af_alg: Support MSG_SPLICE_PAGES") Reported-by: syzbot+6efc50cc1f8d718d6cb7@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/000000000000b2585a05fdeb8379@google.com/Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: syzbot+6efc50cc1f8d718d6cb7@syzkaller.appspotmail.com cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Jens Axboe <axboe@kernel.dk> cc: Matthew Wilcox <willy@infradead.org> cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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Arjun Roy authored
Per-VMA locking allows us to lock a struct vm_area_struct without taking the process-wide mmap lock in read mode. Consider a process workload where the mmap lock is taken constantly in write mode. In this scenario, all zerocopy receives are periodically blocked during that period of time - though in principle, the memory ranges being used by TCP are not touched by the operations that need the mmap write lock. This results in performance degradation. Now consider another workload where the mmap lock is never taken in write mode, but there are many TCP connections using receive zerocopy that are concurrently receiving. These connections all take the mmap lock in read mode, but this does induce a lot of contention and atomic ops for this process-wide lock. This results in additional CPU overhead caused by contending on the cache line for this lock. However, with per-vma locking, both of these problems can be avoided. As a test, I ran an RPC-style request/response workload with 4KB payloads and receive zerocopy enabled, with 100 simultaneous TCP connections. I measured perf cycles within the find_tcp_vma/mmap_read_lock/mmap_read_unlock codepath, with and without per-vma locking enabled. When using process-wide mmap semaphore read locking, about 1% of measured perf cycles were within this path. With per-VMA locking, this value dropped to about 0.45%. Signed-off-by: Arjun Roy <arjunroy@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 17 Jun, 2023 6 commits
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mfreemon@cloudflare.com authored
Under certain circumstances, the tcp receive buffer memory limit set by autotuning (sk_rcvbuf) is increased due to incoming data packets as a result of the window not closing when it should be. This can result in the receive buffer growing all the way up to tcp_rmem[2], even for tcp sessions with a low BDP. To reproduce: Connect a TCP session with the receiver doing nothing and the sender sending small packets (an infinite loop of socket send() with 4 bytes of payload with a sleep of 1 ms in between each send()). This will cause the tcp receive buffer to grow all the way up to tcp_rmem[2]. As a result, a host can have individual tcp sessions with receive buffers of size tcp_rmem[2], and the host itself can reach tcp_mem limits, causing the host to go into tcp memory pressure mode. The fundamental issue is the relationship between the granularity of the window scaling factor and the number of byte ACKed back to the sender. This problem has previously been identified in RFC 7323, appendix F [1]. The Linux kernel currently adheres to never shrinking the window. In addition to the overallocation of memory mentioned above, the current behavior is functionally incorrect, because once tcp_rmem[2] is reached when no remediations remain (i.e. tcp collapse fails to free up any more memory and there are no packets to prune from the out-of-order queue), the receiver will drop in-window packets resulting in retransmissions and an eventual timeout of the tcp session. A receive buffer full condition should instead result in a zero window and an indefinite wait. In practice, this problem is largely hidden for most flows. It is not applicable to mice flows. Elephant flows can send data fast enough to "overrun" the sk_rcvbuf limit (in a single ACK), triggering a zero window. But this problem does show up for other types of flows. Examples are websockets and other type of flows that send small amounts of data spaced apart slightly in time. In these cases, we directly encounter the problem described in [1]. RFC 7323, section 2.4 [2], says there are instances when a retracted window can be offered, and that TCP implementations MUST ensure that they handle a shrinking window, as specified in RFC 1122, section 4.2.2.16 [3]. All prior RFCs on the topic of tcp window management have made clear that sender must accept a shrunk window from the receiver, including RFC 793 [4] and RFC 1323 [5]. This patch implements the functionality to shrink the tcp window when necessary to keep the right edge within the memory limit by autotuning (sk_rcvbuf). This new functionality is enabled with the new sysctl: net.ipv4.tcp_shrink_window Additional information can be found at: https://blog.cloudflare.com/unbounded-memory-usage-by-tcp-for-receive-buffers-and-how-we-fixed-it/ [1] https://www.rfc-editor.org/rfc/rfc7323#appendix-F [2] https://www.rfc-editor.org/rfc/rfc7323#section-2.4 [3] https://www.rfc-editor.org/rfc/rfc1122#page-91 [4] https://www.rfc-editor.org/rfc/rfc793 [5] https://www.rfc-editor.org/rfc/rfc1323Signed-off-by: Mike Freemon <mfreemon@cloudflare.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Petr Oros authored
devlink_port_type_warn is scheduled for port devlink and warning when the port type is not set. But from this warning it is not easy found out which device (driver) has no devlink port set. [ 3709.975552] Type was not set for devlink port. [ 3709.975579] WARNING: CPU: 1 PID: 13092 at net/devlink/leftover.c:6775 devlink_port_type_warn+0x11/0x20 [ 3709.993967] Modules linked in: openvswitch nf_conncount nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nfnetlink bluetooth rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs vhost_net vhost vhost_iotlb tap tun bridge stp llc qrtr intel_rapl_msr intel_rapl_common i10nm_edac nfit libnvdimm x86_pkg_temp_thermal mlx5_ib intel_powerclamp coretemp dell_wmi ledtrig_audio sparse_keymap ipmi_ssif kvm_intel ib_uverbs rfkill ib_core video kvm iTCO_wdt acpi_ipmi intel_vsec irqbypass ipmi_si iTCO_vendor_support dcdbas ipmi_devintf mei_me ipmi_msghandler rapl mei intel_cstate isst_if_mmio isst_if_mbox_pci dell_smbios intel_uncore isst_if_common i2c_i801 dell_wmi_descriptor wmi_bmof i2c_smbus intel_pch_thermal pcspkr acpi_power_meter xfs libcrc32c sd_mod sg nvme_tcp mgag200 i2c_algo_bit nvme_fabrics drm_shmem_helper drm_kms_helper nvme syscopyarea ahci sysfillrect sysimgblt nvme_core fb_sys_fops crct10dif_pclmul libahci mlx5_core sfc crc32_pclmul nvme_common drm [ 3709.994030] crc32c_intel mtd t10_pi mlxfw libata tg3 mdio megaraid_sas psample ghash_clmulni_intel pci_hyperv_intf wmi dm_multipath sunrpc dm_mirror dm_region_hash dm_log dm_mod be2iscsi bnx2i cnic uio cxgb4i cxgb4 tls libcxgbi libcxgb qla4xxx iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi fuse [ 3710.108431] CPU: 1 PID: 13092 Comm: kworker/1:1 Kdump: loaded Not tainted 5.14.0-319.el9.x86_64 #1 [ 3710.108435] Hardware name: Dell Inc. PowerEdge R750/0PJ80M, BIOS 1.8.2 09/14/2022 [ 3710.108437] Workqueue: events devlink_port_type_warn [ 3710.108440] RIP: 0010:devlink_port_type_warn+0x11/0x20 [ 3710.108443] Code: 84 76 fe ff ff 48 c7 03 20 0e 1a ad 31 c0 e9 96 fd ff ff 66 0f 1f 44 00 00 0f 1f 44 00 00 48 c7 c7 18 24 4e ad e8 ef 71 62 ff <0f> 0b c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f6 87 [ 3710.108445] RSP: 0018:ff3b6d2e8b3c7e90 EFLAGS: 00010282 [ 3710.108447] RAX: 0000000000000000 RBX: ff366d6580127080 RCX: 0000000000000027 [ 3710.108448] RDX: 0000000000000027 RSI: 00000000ffff86de RDI: ff366d753f41f8c8 [ 3710.108449] RBP: ff366d658ff5a0c0 R08: ff366d753f41f8c0 R09: ff3b6d2e8b3c7e18 [ 3710.108450] R10: 0000000000000001 R11: 0000000000000023 R12: ff366d753f430600 [ 3710.108451] R13: ff366d753f436900 R14: 0000000000000000 R15: ff366d753f436905 [ 3710.108452] FS: 0000000000000000(0000) GS:ff366d753f400000(0000) knlGS:0000000000000000 [ 3710.108453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3710.108454] CR2: 00007f1c57bc74e0 CR3: 000000111d26a001 CR4: 0000000000773ee0 [ 3710.108456] PKRU: 55555554 [ 3710.108457] Call Trace: [ 3710.108458] <TASK> [ 3710.108459] process_one_work+0x1e2/0x3b0 [ 3710.108466] ? rescuer_thread+0x390/0x390 [ 3710.108468] worker_thread+0x50/0x3a0 [ 3710.108471] ? rescuer_thread+0x390/0x390 [ 3710.108473] kthread+0xdd/0x100 [ 3710.108477] ? kthread_complete_and_exit+0x20/0x20 [ 3710.108479] ret_from_fork+0x1f/0x30 [ 3710.108485] </TASK> [ 3710.108486] ---[ end trace 1b4b23cd0c65d6a0 ]--- After patch: [ 402.473064] ice 0000:41:00.0: Type was not set for devlink port. [ 402.473064] ice 0000:41:00.1: Type was not set for devlink port. Signed-off-by: Petr Oros <poros@redhat.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230615095447.8259-1-poros@redhat.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Lin Ma authored
Current mctp_newroute() contains two exactly same check against rtm->rtm_type static int mctp_newroute(...) { ... if (rtm->rtm_type != RTN_UNICAST) { // (1) NL_SET_ERR_MSG(extack, "rtm_type must be RTN_UNICAST"); return -EINVAL; } ... if (rtm->rtm_type != RTN_UNICAST) // (2) return -EINVAL; ... } This commits removes the (2) check as it is redundant. Signed-off-by: Lin Ma <linma@zju.edu.cn> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Acked-by: Jeremy Kerr <jk@codeconstruct.com.au> Link: https://lore.kernel.org/r/20230615152240.1749428-1-linma@zju.edu.cnSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Donald Hunter authored
Refine the ovs_* specs to align exactly with the ovs netlink UAPI definitions to enable code generation. Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20230615151405.77649-1-donald.hunter@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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YueHaibing authored
This is unused since switch to psched_l2t_ns(). Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Link: https://lore.kernel.org/r/20230615124810.34020-1-yuehaibing@huawei.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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David Howells authored
kcm_write_msgs() calls unreserve_psock() to release its hold on the underlying TCP socket if it has run out of things to transmit, but if we have nothing in the write queue on entry (e.g. because someone did a zero-length sendmsg), we don't actually go into the transmission loop and as a consequence don't call reserve_psock(). Fix this by skipping the call to unreserve_psock() if we didn't reserve a psock. Fixes: c31a25e1 ("kcm: Send multiple frags in one sendmsg()") Reported-by: syzbot+dd1339599f1840e4cc65@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/000000000000a61ffe05fe0c3d08@google.com/Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: syzbot+dd1339599f1840e4cc65@syzkaller.appspotmail.com cc: Tom Herbert <tom@herbertland.com> cc: Tom Herbert <tom@quantonium.net> cc: Jens Axboe <axboe@kernel.dk> cc: Matthew Wilcox <willy@infradead.org> Link: https://lore.kernel.org/r/20787.1686828722@warthog.procyon.org.ukSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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- 16 Jun, 2023 19 commits
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Jiri Pirko authored
"ecpu" field in struct mlx5_sf_table is not used anywhere. Remove it. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Shay Drory <shayd@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Juhee Kang authored
Separate the event API defined in the generic mlx5.h header into a dedicated header. And remove the TODO comment in commit 69c1280b ("net/mlx5: Device events, Use async events chain"). Signed-off-by: Juhee Kang <claudiajkang@gmail.com> Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Daniel Jurgens authored
This change is needed to use EC VFs with metadata based steering. There was an assumption that vport was equal to function ID. That's not the case for EC VF functions. Adjust to function ID and set the ec_vf_function bit accordingly. Fixes: 9ac0b128 ("net/mlx5: Update vport caps query/set for EC VFs") Signed-off-by: Daniel Jurgens <danielj@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Daniel Jurgens authored
The last value is not set correctly. This results in representors not being created for all EC VFs when the base value is higher than 0. Fixes: a7719b29 ("net/mlx5: Add management of EC VF vports") Signed-off-by: Daniel Jurgens <danielj@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Or Har-Toov authored
Add counter for number of unicast, multicast and broadcast packets/ octets that were loopback. Signed-off-by: Or Har-Toov <ohartoov@nvidia.com> Reviewed-by: Avihai Horon <avihaih@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Or Har-Toov authored
Add needed HW bits for querying local loopback counter and the HCA capability for it. Signed-off-by: Or Har-Toov <ohartoov@nvidia.com> Reviewed-by: Avihai Horon <avihaih@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Gal Pressman authored
The msglvl support was implemented using the mlx5e_dbg() macro which is rarely used in the driver, and is not very useful when you can just use dynamic debug instead. Remove mlx5e_dbg() and convert its usages to netdev_dbg(). Signed-off-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Saeed Mahameed authored
These else statement blocks are redundant since the if block already jumps to the function abort label. Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
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Vlad Buslov authored
For debugging purposes expose offloaded FDB state (flags, counters, etc.) via debugfs inside 'esw' root directory. Example debugfs file output: $ cat mlx5/0000\:08\:00.0/esw/bridge/bridge1/fdb DEV MAC VLAN PACKETS BYTES LASTUSE FLAGS enp8s0f0_1 e4:0a:05:08:00:06 2 2 204 4295567112 0x0 enp8s0f0_0 e4:0a:05:08:00:03 2 3 278 4295567112 0x0 Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Gal Pressman <gal@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Vlad Buslov authored
Following patch requires access to additional data in bridge net_device. Pass the whole structure down the stack instead of adding necessary fields as function arguments one-by-one. Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Reviewed-by: Gal Pressman <gal@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Vlad Buslov authored
Following patch in series uses the new directory for bridge FDB debugfs. The new directory is intended for all future eswitch-specific debugfs files. Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Reviewed-by: Gal Pressman <gal@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Moshe Shemesh authored
Added a new event handler to firmware sync reset, which is used to support firmware sync reset flow on smart NIC. Adding this new stage to the flow enables the firmware to ensure host PFs unload before ECPFs unload, to avoid race of PFs recovery. If firmware sends sync_reset_unload event to driver the driver should unload and close all HW resources of the function. Once the driver finishes unloading part, it can't get any more events from firmware as event queues are closed, so it polls the reset state field to know when to continue to next stage of the sync reset flow. Added capability bit for supporting sync_reset_unload event. Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Shay Drory <shayd@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Moshe Shemesh authored
The Default Timeout Register (DTOR) provides timeout values to driver for flows that are device dependent. Zero value for DTOR entry is not valid and should not be used. In case of reading zero value from DTOR, the driver should use the hard coded SW default value instead. Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Moshe Shemesh authored
Expose new timoueout in Default Timeouts Register to be used on sync reset flow running on smart NIC. In this flow the driver should know how much time to wait from getting unload request till firmware will ask the PF to continue to next stage of the flow. Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Shay Drory <shayd@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Moshe Shemesh authored
Verify at reset_request stage that PF is capable to do reset_now. In case PF is not capable, notify the firmware that the sync reset can not happen and so firmware will abort the sync reset at early stage and will not send reset_now event to any PF. Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Shay Drory <shayd@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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David Howells authored
Splicing to SOCK_RAW sockets may set MSG_SPLICE_PAGES, but in such a case, __ip_append_data() will call skb_splice_from_iter() to access the 'from' data, assuming it to point to a msghdr struct with an iter, instead of using the provided getfrag function to access it. In the case of raw_sendmsg(), however, this is not the case and 'from' will point to a raw_frag_vec struct and raw_getfrag() will be the frag-getting function. A similar issue may occur with rawv6_sendmsg(). Fix this by ignoring MSG_SPLICE_PAGES if getfrag != ip_generic_getfrag as ip_generic_getfrag() expects "from" to be a msghdr*, but the other getfrags don't. Note that this will prevent MSG_SPLICE_PAGES from being effective for udplite. This likely affects ping sockets too. udplite looks like it should be okay as it expects "from" to be a msghdr. Signed-off-by: David Howells <dhowells@redhat.com> Reported-by: syzbot+d8486855ef44506fd675@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/000000000000ae4cbf05fdeb8349@google.com/ Fixes: 2dc334f1 ("splice, net: Use sendmsg(MSG_SPLICE_PAGES) rather than ->sendpage()") Tested-by: syzbot+d8486855ef44506fd675@syzkaller.appspotmail.com cc: David Ahern <dsahern@kernel.org> cc: Jens Axboe <axboe@kernel.dk> cc: Matthew Wilcox <willy@infradead.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/1410156.1686729856@warthog.procyon.org.ukSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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Edward Cree authored
Functions efx_tc_netdev_event and efx_tc_netevent_event do not exist in that case as object files tc_bindings.o and tc_encap_actions.o are not built, so the calls to them from ef100_netdev_event and ef100_netevent_event cause link errors. Wrap the corresponding header files (tc_bindings.h, tc_encap_actions.h) with #if IS_ENABLED(CONFIG_SFC_SRIOV), and add an #else with static inline stubs for these two functions. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202306102026.ISK5JfUQ-lkp@intel.com/ Fixes: 7e5e7d80 ("sfc: neighbour lookup for TC encap action offload") Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Randy Dunlap authored
When CONFIG_ETHERNET=m or CONFIG_FDDI=m, lcs.s has build errors or warnings: ../drivers/s390/net/lcs.c:40:2: error: #error Cannot compile lcs.c without some net devices switched on. 40 | #error Cannot compile lcs.c without some net devices switched on. ../drivers/s390/net/lcs.c: In function 'lcs_startlan_auto': ../drivers/s390/net/lcs.c:1601:13: warning: unused variable 'rc' [-Wunused-variable] 1601 | int rc; Solve this by using IS_ENABLED(CONFIG_symbol) instead of ifdef CONFIG_symbol. The latter only works for builtin (=y) values while IS_ENABLED() works for builtin or modular values. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Alexandra Winter <wintera@linux.ibm.com> Cc: Wenjia Zhang <wenjia@linux.ibm.com> Cc: linux-s390@vger.kernel.org Cc: netdev@vger.kernel.org Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jisheng Zhang authored
Implement 64 bit per cpu stats to fix the overflow of netdev->stats on 32 bit platforms. To simplify the code, we use net core pcpu_sw_netstats infrastructure. One small drawback is some memory overhead because litex uses just one queue, but we allocate the counters per cpu. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Simon Horman <simon.horman@corigine.com> Acked-by: Gabriel Somlo <gsomlo@gmail.com> Link: https://lore.kernel.org/r/20230614162035.300-1-jszhang@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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