wx_clear_hw_cntrs(9)
β¨ wx_clear_hw_cntrs β the Kernel API Manual moment β¨
okay so bestie, this one is from the Kernel API Manual (the (9) is giving "section 9, kernel internals, don't ask" energy π
) and it's honestly so chill. Let's get into it π«Ά
πΈ NAME πΈ
wx_clear_hw_cntrs β generic clear hardware counters. that's it. that's the whole vibe β¨
π¦ SYNOPSIS π¦
void wx_clear_hw_cntrs (struct wx *wx );
literally just one arg, no return value, no drama. void in, void out, main character energy π
π ARGUMENTS π
wxβ the board private structure π that's your board's own little private struct, okay? like its personal diary but for hardware.
π₯ DESCRIPTION π₯
So what does it do? It clears all hardware statistics counters β and the way it does that is by reading them from the hardware. That's the trick, no cap. β¨
And here's the iconic part: statistics counters are clear on read. π«§ so the act of reading them is the clearing. you read, they're gone. like a snapchat streak of numbers. it's giving "the reading IS the reset" and honestly? we love a self-cleaning counter π
ngl this is the entire function, so there's no hidden gotcha here β but do keep that clear-on-read behaviour in your head, because it means the numbers vanish the moment you peek at them π
π SEE ALSO π
Kernel file, for when you wanna go read the actual source (iykyk):
./drivers/net/ethernet/wangxun/libwx/wx_hw.c
and the whole friend group of sibling functions, all here, all accounted for, no one left behind π«Ά:
wx_irq_disable(9)wx_mng_present(9)wx_release_sw_sync(9)wx_acquire_sw_sync(9)wx_host_interface_command(9)wx_read_ee_hostif_data(9)wx_read_ee_hostif(9)wx_read_ee_hostif_buffer(9)wx_init_eeprom_params(9)wx_get_mac_addr(9)wx_set_rar(9)wx_clear_rar(9)wx_clear_vmdq(9)wx_init_uta_tables(9)wx_init_rx_addrs(9)wx_write_uc_addr_list(9)wx_mta_vector(9)wx_set_mta(9)wx_update_mc_addr_list(9)wx_write_mc_addr_list(9)wx_set_mac(9)wx_set_rxpba(9)wx_hpbthresh(9)wx_lpbthresh(9)wx_pbthresh_setup(9)wx_disable_sec_rx_path(9)wx_enable_sec_rx_path(9)wx_change_mtu(9)wx_configure_tx(9)wx_configure_rx(9)wx_disable_pcie_master(9)wx_stop_adapter(9)wx_get_pcie_msix_counts(9)wx_init_rss_key(9)wx_find_vlvf_slot(9)wx_set_vlvf(9)wx_set_vfta(9)wx_clear_vfta(9)wx_update_stats(9)wx_start_hw(9)
and that's the whole page, bestie, you ate that π
cute little sign-off before you go: this one's sourced from ./drivers/net/ethernet/wangxun... and dated October 2026 β yes, october twenty twenty-six, we're reading ahead, and it's still wx_clear_hw_cntrs(9) at the bottom, exactly like it was at the top ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms