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Message-ID: <df826cdd-f2cf-b7da-f24a-cec9d463a600@ucloud.cn> Date: Tue, 10 Dec 2019 13:04:00 +0800 From: wenxu <wenxu@...oud.cn> To: Linux Kernel Network Developers <netdev@...r.kernel.org> Subject: net-next tree mlx5e set sriov_numf failed Hi mellanox team, I test the net-next branch, set the sriov_numvf fail for Cannot allocate memory # uname -r 5.5.0-rc1+ # ethtool -i eth0 driver: mlx5_core version: 5.0-0 firmware-version: 16.25.1020 (MT_0000000080) expansion-rom-version: bus-info: 0000:81:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: no supports-register-dump: no supports-priv-flags: yes # echo 1 > /sys/class/net/eth0/device/sriov_numvfs -bash: echo: write error: Cannot allocate memory dmesg show: [Tue Dec 10 12:24:26 2019] mlx5_core 0000:81:00.0: E-Switch: Enable: mode(LEGACY), nvfs(1), active vports(2) [Tue Dec 10 12:24:26 2019] mlx5_core 0000:81:00.0: not enough MMIO resources for SR-IOV [Tue Dec 10 12:24:26 2019] mlx5_core 0000:81:00.0: mlx5_sriov_enable:149:(pid 20601): pci_enable_sriov failed : -12 [Tue Dec 10 12:24:26 2019] mlx5_core 0000:81:00.0: E-Switch: Disable: mode(LEGACY), nvfs(1), active vports(2) BR wenxu
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