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authorTariq Toukan <tariqt@nvidia.com>2023-01-21 07:24:35 +0300
committerJakub Kicinski <kuba@kernel.org>2023-02-08 05:20:00 +0300
commit2acda57736de1e486036b90a648e67a3599080a1 (patch)
tree9cd5970a2a2db42d87995904a63af2521986156b
parent06ac01721f7d07da722abe0ec6f147b90bfc8c77 (diff)
downloadlinux-2acda57736de1e486036b90a648e67a3599080a1.tar.xz
net/mlx5e: Improve remote NUMA preferences used for the IRQ affinity hints
In the IRQ affinity hints, replace the binary NUMA preference (local / remote) with the improved for_each_numa_hop_cpu() API that minds the actual distances, so that remote NUMAs with short distance are preferred over farther ones. This has significant performance implications when using NUMA-aware allocated memory (follow [1] and derivatives for example). [1] drivers/net/ethernet/mellanox/mlx5/core/en_main.c :: mlx5e_open_channel() int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(priv->mdev, ix)); Performance tests: TCP multi-stream, using 16 iperf3 instances pinned to 16 cores (with aRFS on). Active cores: 64,65,72,73,80,81,88,89,96,97,104,105,112,113,120,121 +-------------------------+-----------+------------------+------------------+ | | BW (Gbps) | TX side CPU util | RX side CPU util | +-------------------------+-----------+------------------+------------------+ | Baseline | 52.3 | 6.4 % | 17.9 % | +-------------------------+-----------+------------------+------------------+ | Applied on TX side only | 52.6 | 5.2 % | 18.5 % | +-------------------------+-----------+------------------+------------------+ | Applied on RX side only | 94.9 | 11.9 % | 27.2 % | +-------------------------+-----------+------------------+------------------+ | Applied on both sides | 95.1 | 8.4 % | 27.3 % | +-------------------------+-----------+------------------+------------------+ Bottleneck in RX side is released, reached linerate (~1.8x speedup). ~30% less cpu util on TX. * CPU util on active cores only. Setups details (similar for both sides): NIC: ConnectX6-DX dual port, 100 Gbps each. Single port used in the tests. $ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 256 On-line CPU(s) list: 0-255 Thread(s) per core: 2 Core(s) per socket: 64 Socket(s): 2 NUMA node(s): 16 Vendor ID: AuthenticAMD CPU family: 25 Model: 1 Model name: AMD EPYC 7763 64-Core Processor Stepping: 1 CPU MHz: 2594.804 BogoMIPS: 4890.73 Virtualization: AMD-V L1d cache: 32K L1i cache: 32K L2 cache: 512K L3 cache: 32768K NUMA node0 CPU(s): 0-7,128-135 NUMA node1 CPU(s): 8-15,136-143 NUMA node2 CPU(s): 16-23,144-151 NUMA node3 CPU(s): 24-31,152-159 NUMA node4 CPU(s): 32-39,160-167 NUMA node5 CPU(s): 40-47,168-175 NUMA node6 CPU(s): 48-55,176-183 NUMA node7 CPU(s): 56-63,184-191 NUMA node8 CPU(s): 64-71,192-199 NUMA node9 CPU(s): 72-79,200-207 NUMA node10 CPU(s): 80-87,208-215 NUMA node11 CPU(s): 88-95,216-223 NUMA node12 CPU(s): 96-103,224-231 NUMA node13 CPU(s): 104-111,232-239 NUMA node14 CPU(s): 112-119,240-247 NUMA node15 CPU(s): 120-127,248-255 .. $ numactl -H .. node distances: node 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0: 10 11 11 11 12 12 12 12 32 32 32 32 32 32 32 32 1: 11 10 11 11 12 12 12 12 32 32 32 32 32 32 32 32 2: 11 11 10 11 12 12 12 12 32 32 32 32 32 32 32 32 3: 11 11 11 10 12 12 12 12 32 32 32 32 32 32 32 32 4: 12 12 12 12 10 11 11 11 32 32 32 32 32 32 32 32 5: 12 12 12 12 11 10 11 11 32 32 32 32 32 32 32 32 6: 12 12 12 12 11 11 10 11 32 32 32 32 32 32 32 32 7: 12 12 12 12 11 11 11 10 32 32 32 32 32 32 32 32 8: 32 32 32 32 32 32 32 32 10 11 11 11 12 12 12 12 9: 32 32 32 32 32 32 32 32 11 10 11 11 12 12 12 12 10: 32 32 32 32 32 32 32 32 11 11 10 11 12 12 12 12 11: 32 32 32 32 32 32 32 32 11 11 11 10 12 12 12 12 12: 32 32 32 32 32 32 32 32 12 12 12 12 10 11 11 11 13: 32 32 32 32 32 32 32 32 12 12 12 12 11 10 11 11 14: 32 32 32 32 32 32 32 32 12 12 12 12 11 11 10 11 15: 32 32 32 32 32 32 32 32 12 12 12 12 11 11 11 10 $ cat /sys/class/net/ens5f0/device/numa_node 14 Affinity hints (127 IRQs): Before: 331: 00000000,00000000,00000000,00000000,00010000,00000000,00000000,00000000 332: 00000000,00000000,00000000,00000000,00020000,00000000,00000000,00000000 333: 00000000,00000000,00000000,00000000,00040000,00000000,00000000,00000000 334: 00000000,00000000,00000000,00000000,00080000,00000000,00000000,00000000 335: 00000000,00000000,00000000,00000000,00100000,00000000,00000000,00000000 336: 00000000,00000000,00000000,00000000,00200000,00000000,00000000,00000000 337: 00000000,00000000,00000000,00000000,00400000,00000000,00000000,00000000 338: 00000000,00000000,00000000,00000000,00800000,00000000,00000000,00000000 339: 00010000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 340: 00020000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 341: 00040000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 342: 00080000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 343: 00100000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 344: 00200000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 345: 00400000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 346: 00800000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 347: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 348: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000002 349: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000004 350: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000008 351: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000010 352: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000020 353: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000040 354: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000080 355: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000100 356: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000200 357: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000400 358: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000800 359: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00001000 360: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00002000 361: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00004000 362: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00008000 363: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00010000 364: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00020000 365: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00040000 366: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00080000 367: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00100000 368: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00200000 369: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00400000 370: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00800000 371: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,01000000 372: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,02000000 373: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,04000000 374: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,08000000 375: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,10000000 376: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,20000000 377: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,40000000 378: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,80000000 379: 00000000,00000000,00000000,00000000,00000000,00000000,00000001,00000000 380: 00000000,00000000,00000000,00000000,00000000,00000000,00000002,00000000 381: 00000000,00000000,00000000,00000000,00000000,00000000,00000004,00000000 382: 00000000,00000000,00000000,00000000,00000000,00000000,00000008,00000000 383: 00000000,00000000,00000000,00000000,00000000,00000000,00000010,00000000 384: 00000000,00000000,00000000,00000000,00000000,00000000,00000020,00000000 385: 00000000,00000000,00000000,00000000,00000000,00000000,00000040,00000000 386: 00000000,00000000,00000000,00000000,00000000,00000000,00000080,00000000 387: 00000000,00000000,00000000,00000000,00000000,00000000,00000100,00000000 388: 00000000,00000000,00000000,00000000,00000000,00000000,00000200,00000000 389: 00000000,00000000,00000000,00000000,00000000,00000000,00000400,00000000 390: 00000000,00000000,00000000,00000000,00000000,00000000,00000800,00000000 391: 00000000,00000000,00000000,00000000,00000000,00000000,00001000,00000000 392: 00000000,00000000,00000000,00000000,00000000,00000000,00002000,00000000 393: 00000000,00000000,00000000,00000000,00000000,00000000,00004000,00000000 394: 00000000,00000000,00000000,00000000,00000000,00000000,00008000,00000000 395: 00000000,00000000,00000000,00000000,00000000,00000000,00010000,00000000 396: 00000000,00000000,00000000,00000000,00000000,00000000,00020000,00000000 397: 00000000,00000000,00000000,00000000,00000000,00000000,00040000,00000000 398: 00000000,00000000,00000000,00000000,00000000,00000000,00080000,00000000 399: 00000000,00000000,00000000,00000000,00000000,00000000,00100000,00000000 400: 00000000,00000000,00000000,00000000,00000000,00000000,00200000,00000000 401: 00000000,00000000,00000000,00000000,00000000,00000000,00400000,00000000 402: 00000000,00000000,00000000,00000000,00000000,00000000,00800000,00000000 403: 00000000,00000000,00000000,00000000,00000000,00000000,01000000,00000000 404: 00000000,00000000,00000000,00000000,00000000,00000000,02000000,00000000 405: 00000000,00000000,00000000,00000000,00000000,00000000,04000000,00000000 406: 00000000,00000000,00000000,00000000,00000000,00000000,08000000,00000000 407: 00000000,00000000,00000000,00000000,00000000,00000000,10000000,00000000 408: 00000000,00000000,00000000,00000000,00000000,00000000,20000000,00000000 409: 00000000,00000000,00000000,00000000,00000000,00000000,40000000,00000000 410: 00000000,00000000,00000000,00000000,00000000,00000000,80000000,00000000 411: 00000000,00000000,00000000,00000000,00000000,00000001,00000000,00000000 412: 00000000,00000000,00000000,00000000,00000000,00000002,00000000,00000000 413: 00000000,00000000,00000000,00000000,00000000,00000004,00000000,00000000 414: 00000000,00000000,00000000,00000000,00000000,00000008,00000000,00000000 415: 00000000,00000000,00000000,00000000,00000000,00000010,00000000,00000000 416: 00000000,00000000,00000000,00000000,00000000,00000020,00000000,00000000 417: 00000000,00000000,00000000,00000000,00000000,00000040,00000000,00000000 418: 00000000,00000000,00000000,00000000,00000000,00000080,00000000,00000000 419: 00000000,00000000,00000000,00000000,00000000,00000100,00000000,00000000 420: 00000000,00000000,00000000,00000000,00000000,00000200,00000000,00000000 421: 00000000,00000000,00000000,00000000,00000000,00000400,00000000,00000000 422: 00000000,00000000,00000000,00000000,00000000,00000800,00000000,00000000 423: 00000000,00000000,00000000,00000000,00000000,00001000,00000000,00000000 424: 00000000,00000000,00000000,00000000,00000000,00002000,00000000,00000000 425: 00000000,00000000,00000000,00000000,00000000,00004000,00000000,00000000 426: 00000000,00000000,00000000,00000000,00000000,00008000,00000000,00000000 427: 00000000,00000000,00000000,00000000,00000000,00010000,00000000,00000000 428: 00000000,00000000,00000000,00000000,00000000,00020000,00000000,00000000 429: 00000000,00000000,00000000,00000000,00000000,00040000,00000000,00000000 430: 00000000,00000000,00000000,00000000,00000000,00080000,00000000,00000000 431: 00000000,00000000,00000000,00000000,00000000,00100000,00000000,00000000 432: 00000000,00000000,00000000,00000000,00000000,00200000,00000000,00000000 433: 00000000,00000000,00000000,00000000,00000000,00400000,00000000,00000000 434: 00000000,00000000,00000000,00000000,00000000,00800000,00000000,00000000 435: 00000000,00000000,00000000,00000000,00000000,01000000,00000000,00000000 436: 00000000,00000000,00000000,00000000,00000000,02000000,00000000,00000000 437: 00000000,00000000,00000000,00000000,00000000,04000000,00000000,00000000 438: 00000000,00000000,00000000,00000000,00000000,08000000,00000000,00000000 439: 00000000,00000000,00000000,00000000,00000000,10000000,00000000,00000000 440: 00000000,00000000,00000000,00000000,00000000,20000000,00000000,00000000 441: 00000000,00000000,00000000,00000000,00000000,40000000,00000000,00000000 442: 00000000,00000000,00000000,00000000,00000000,80000000,00000000,00000000 443: 00000000,00000000,00000000,00000000,00000001,00000000,00000000,00000000 444: 00000000,00000000,00000000,00000000,00000002,00000000,00000000,00000000 445: 00000000,00000000,00000000,00000000,00000004,00000000,00000000,00000000 446: 00000000,00000000,00000000,00000000,00000008,00000000,00000000,00000000 447: 00000000,00000000,00000000,00000000,00000010,00000000,00000000,00000000 448: 00000000,00000000,00000000,00000000,00000020,00000000,00000000,00000000 449: 00000000,00000000,00000000,00000000,00000040,00000000,00000000,00000000 450: 00000000,00000000,00000000,00000000,00000080,00000000,00000000,00000000 451: 00000000,00000000,00000000,00000000,00000100,00000000,00000000,00000000 452: 00000000,00000000,00000000,00000000,00000200,00000000,00000000,00000000 453: 00000000,00000000,00000000,00000000,00000400,00000000,00000000,00000000 454: 00000000,00000000,00000000,00000000,00000800,00000000,00000000,00000000 455: 00000000,00000000,00000000,00000000,00001000,00000000,00000000,00000000 456: 00000000,00000000,00000000,00000000,00002000,00000000,00000000,00000000 457: 00000000,00000000,00000000,00000000,00004000,00000000,00000000,00000000 After: 331: 00000000,00000000,00000000,00000000,00010000,00000000,00000000,00000000 332: 00000000,00000000,00000000,00000000,00020000,00000000,00000000,00000000 333: 00000000,00000000,00000000,00000000,00040000,00000000,00000000,00000000 334: 00000000,00000000,00000000,00000000,00080000,00000000,00000000,00000000 335: 00000000,00000000,00000000,00000000,00100000,00000000,00000000,00000000 336: 00000000,00000000,00000000,00000000,00200000,00000000,00000000,00000000 337: 00000000,00000000,00000000,00000000,00400000,00000000,00000000,00000000 338: 00000000,00000000,00000000,00000000,00800000,00000000,00000000,00000000 339: 00010000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 340: 00020000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 341: 00040000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 342: 00080000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 343: 00100000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 344: 00200000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 345: 00400000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 346: 00800000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 347: 00000000,00000000,00000000,00000000,00000001,00000000,00000000,00000000 348: 00000000,00000000,00000000,00000000,00000002,00000000,00000000,00000000 349: 00000000,00000000,00000000,00000000,00000004,00000000,00000000,00000000 350: 00000000,00000000,00000000,00000000,00000008,00000000,00000000,00000000 351: 00000000,00000000,00000000,00000000,00000010,00000000,00000000,00000000 352: 00000000,00000000,00000000,00000000,00000020,00000000,00000000,00000000 353: 00000000,00000000,00000000,00000000,00000040,00000000,00000000,00000000 354: 00000000,00000000,00000000,00000000,00000080,00000000,00000000,00000000 355: 00000000,00000000,00000000,00000000,00000100,00000000,00000000,00000000 356: 00000000,00000000,00000000,00000000,00000200,00000000,00000000,00000000 357: 00000000,00000000,00000000,00000000,00000400,00000000,00000000,00000000 358: 00000000,00000000,00000000,00000000,00000800,00000000,00000000,00000000 359: 00000000,00000000,00000000,00000000,00001000,00000000,00000000,00000000 360: 00000000,00000000,00000000,00000000,00002000,00000000,00000000,00000000 361: 00000000,00000000,00000000,00000000,00004000,00000000,00000000,00000000 362: 00000000,00000000,00000000,00000000,00008000,00000000,00000000,00000000 363: 00000000,00000000,00000000,00000000,01000000,00000000,00000000,00000000 364: 00000000,00000000,00000000,00000000,02000000,00000000,00000000,00000000 365: 00000000,00000000,00000000,00000000,04000000,00000000,00000000,00000000 366: 00000000,00000000,00000000,00000000,08000000,00000000,00000000,00000000 367: 00000000,00000000,00000000,00000000,10000000,00000000,00000000,00000000 368: 00000000,00000000,00000000,00000000,20000000,00000000,00000000,00000000 369: 00000000,00000000,00000000,00000000,40000000,00000000,00000000,00000000 370: 00000000,00000000,00000000,00000000,80000000,00000000,00000000,00000000 371: 00000001,00000000,00000000,00000000,00000000,00000000,00000000,00000000 372: 00000002,00000000,00000000,00000000,00000000,00000000,00000000,00000000 373: 00000004,00000000,00000000,00000000,00000000,00000000,00000000,00000000 374: 00000008,00000000,00000000,00000000,00000000,00000000,00000000,00000000 375: 00000010,00000000,00000000,00000000,00000000,00000000,00000000,00000000 376: 00000020,00000000,00000000,00000000,00000000,00000000,00000000,00000000 377: 00000040,00000000,00000000,00000000,00000000,00000000,00000000,00000000 378: 00000080,00000000,00000000,00000000,00000000,00000000,00000000,00000000 379: 00000100,00000000,00000000,00000000,00000000,00000000,00000000,00000000 380: 00000200,00000000,00000000,00000000,00000000,00000000,00000000,00000000 381: 00000400,00000000,00000000,00000000,00000000,00000000,00000000,00000000 382: 00000800,00000000,00000000,00000000,00000000,00000000,00000000,00000000 383: 00001000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 384: 00002000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 385: 00004000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 386: 00008000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 387: 01000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 388: 02000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 389: 04000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 390: 08000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 391: 10000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 392: 20000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 393: 40000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 394: 80000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 395: 00000000,00000000,00000000,00000000,00000000,00000001,00000000,00000000 396: 00000000,00000000,00000000,00000000,00000000,00000002,00000000,00000000 397: 00000000,00000000,00000000,00000000,00000000,00000004,00000000,00000000 398: 00000000,00000000,00000000,00000000,00000000,00000008,00000000,00000000 399: 00000000,00000000,00000000,00000000,00000000,00000010,00000000,00000000 400: 00000000,00000000,00000000,00000000,00000000,00000020,00000000,00000000 401: 00000000,00000000,00000000,00000000,00000000,00000040,00000000,00000000 402: 00000000,00000000,00000000,00000000,00000000,00000080,00000000,00000000 403: 00000000,00000000,00000000,00000000,00000000,00000100,00000000,00000000 404: 00000000,00000000,00000000,00000000,00000000,00000200,00000000,00000000 405: 00000000,00000000,00000000,00000000,00000000,00000400,00000000,00000000 406: 00000000,00000000,00000000,00000000,00000000,00000800,00000000,00000000 407: 00000000,00000000,00000000,00000000,00000000,00001000,00000000,00000000 408: 00000000,00000000,00000000,00000000,00000000,00002000,00000000,00000000 409: 00000000,00000000,00000000,00000000,00000000,00004000,00000000,00000000 410: 00000000,00000000,00000000,00000000,00000000,00008000,00000000,00000000 411: 00000000,00000000,00000000,00000000,00000000,00010000,00000000,00000000 412: 00000000,00000000,00000000,00000000,00000000,00020000,00000000,00000000 413: 00000000,00000000,00000000,00000000,00000000,00040000,00000000,00000000 414: 00000000,00000000,00000000,00000000,00000000,00080000,00000000,00000000 415: 00000000,00000000,00000000,00000000,00000000,00100000,00000000,00000000 416: 00000000,00000000,00000000,00000000,00000000,00200000,00000000,00000000 417: 00000000,00000000,00000000,00000000,00000000,00400000,00000000,00000000 418: 00000000,00000000,00000000,00000000,00000000,00800000,00000000,00000000 419: 00000000,00000000,00000000,00000000,00000000,01000000,00000000,00000000 420: 00000000,00000000,00000000,00000000,00000000,02000000,00000000,00000000 421: 00000000,00000000,00000000,00000000,00000000,04000000,00000000,00000000 422: 00000000,00000000,00000000,00000000,00000000,08000000,00000000,00000000 423: 00000000,00000000,00000000,00000000,00000000,10000000,00000000,00000000 424: 00000000,00000000,00000000,00000000,00000000,20000000,00000000,00000000 425: 00000000,00000000,00000000,00000000,00000000,40000000,00000000,00000000 426: 00000000,00000000,00000000,00000000,00000000,80000000,00000000,00000000 427: 00000000,00000001,00000000,00000000,00000000,00000000,00000000,00000000 428: 00000000,00000002,00000000,00000000,00000000,00000000,00000000,00000000 429: 00000000,00000004,00000000,00000000,00000000,00000000,00000000,00000000 430: 00000000,00000008,00000000,00000000,00000000,00000000,00000000,00000000 431: 00000000,00000010,00000000,00000000,00000000,00000000,00000000,00000000 432: 00000000,00000020,00000000,00000000,00000000,00000000,00000000,00000000 433: 00000000,00000040,00000000,00000000,00000000,00000000,00000000,00000000 434: 00000000,00000080,00000000,00000000,00000000,00000000,00000000,00000000 435: 00000000,00000100,00000000,00000000,00000000,00000000,00000000,00000000 436: 00000000,00000200,00000000,00000000,00000000,00000000,00000000,00000000 437: 00000000,00000400,00000000,00000000,00000000,00000000,00000000,00000000 438: 00000000,00000800,00000000,00000000,00000000,00000000,00000000,00000000 439: 00000000,00001000,00000000,00000000,00000000,00000000,00000000,00000000 440: 00000000,00002000,00000000,00000000,00000000,00000000,00000000,00000000 441: 00000000,00004000,00000000,00000000,00000000,00000000,00000000,00000000 442: 00000000,00008000,00000000,00000000,00000000,00000000,00000000,00000000 443: 00000000,00010000,00000000,00000000,00000000,00000000,00000000,00000000 444: 00000000,00020000,00000000,00000000,00000000,00000000,00000000,00000000 445: 00000000,00040000,00000000,00000000,00000000,00000000,00000000,00000000 446: 00000000,00080000,00000000,00000000,00000000,00000000,00000000,00000000 447: 00000000,00100000,00000000,00000000,00000000,00000000,00000000,00000000 448: 00000000,00200000,00000000,00000000,00000000,00000000,00000000,00000000 449: 00000000,00400000,00000000,00000000,00000000,00000000,00000000,00000000 450: 00000000,00800000,00000000,00000000,00000000,00000000,00000000,00000000 451: 00000000,01000000,00000000,00000000,00000000,00000000,00000000,00000000 452: 00000000,02000000,00000000,00000000,00000000,00000000,00000000,00000000 453: 00000000,04000000,00000000,00000000,00000000,00000000,00000000,00000000 454: 00000000,08000000,00000000,00000000,00000000,00000000,00000000,00000000 455: 00000000,10000000,00000000,00000000,00000000,00000000,00000000,00000000 456: 00000000,20000000,00000000,00000000,00000000,00000000,00000000,00000000 457: 00000000,40000000,00000000,00000000,00000000,00000000,00000000,00000000 Signed-off-by: Tariq Toukan <tariqt@nvidia.com> [Tweaked API use] Suggested-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Valentin Schneider <vschneid@redhat.com> Reviewed-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/eq.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 9b44557e7271..66ec7932f008 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -817,9 +817,12 @@ static void comp_irqs_release(struct mlx5_core_dev *dev)
static int comp_irqs_request(struct mlx5_core_dev *dev)
{
struct mlx5_eq_table *table = dev->priv.eq_table;
+ const struct cpumask *prev = cpu_none_mask;
+ const struct cpumask *mask;
int ncomp_eqs = table->num_comp_eqs;
u16 *cpus;
int ret;
+ int cpu;
int i;
ncomp_eqs = table->num_comp_eqs;
@@ -838,8 +841,19 @@ static int comp_irqs_request(struct mlx5_core_dev *dev)
ret = -ENOMEM;
goto free_irqs;
}
- for (i = 0; i < ncomp_eqs; i++)
- cpus[i] = cpumask_local_spread(i, dev->priv.numa_node);
+
+ i = 0;
+ rcu_read_lock();
+ for_each_numa_hop_mask(mask, dev->priv.numa_node) {
+ for_each_cpu_andnot(cpu, mask, prev) {
+ cpus[i] = cpu;
+ if (++i == ncomp_eqs)
+ goto spread_done;
+ }
+ prev = mask;
+ }
+spread_done:
+ rcu_read_unlock();
ret = mlx5_irqs_request_vectors(dev, cpus, ncomp_eqs, table->comp_irqs);
kfree(cpus);
if (ret < 0)
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 19:32:33 +0300