wx_set_rar(9)

✨ wx_set_rar(9) ✨

okay so bestie, we're in the Kernel API Manual today and the main character is wx_set_rar — yes that's the whole name, it's giving "set Rx address register" and honestly? iconic. lowkey does exactly what it says on the tin. let's get into it 🫶

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🌸 SYNOPSIS 🌸

int wx_set_rar (struct wx *wx , u32 index , u8 *addr , u64 pools , u32
       enable_addr );

yep, that's the whole vibe check: returns an int, takes five args, no cap. 💅

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🎀 ARGUMENTS 🎀

• wx — pointer to the hardware structure. like, the actual device we're talking to, bestie 💖
• index — which receive address register you wanna write to. pick your slot, queen 👑
• addr — the address you're putting into that receive address register. the whole point tbh ✨
• pools — the VMDq "set" or "pool" index. that's the exact wording, don't come for me 🙈
• enable_addr — the set flag that says "yeah, this address is active". flip it and it's official ⭐

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🦋 DESCRIPTION 🦋

okay so the tea is: this function puts an ethernet address into a receive address register. that's it, that's the whole gig. it literally takes addr and drops it into the register you pointed at with index, and enable_addr is the little flag that says whether the address is active. simple, clean, slayed. 🧚

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💜 SEE ALSO 💜

first up, the kernel file it lives in — go read the source, iykyk:

./drivers/net/ethernet/wangxun/libwx/wx_hw.c

and now the whole friend group, in exactly the order the manpage gives them (yes, all of them, i'm not skipping anyone, they're all invited to the party 🎉):

• 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_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_clear_hw_cntrs(9)
• wx_start_hw(9)

like, that's a whole group chat right there. go say hi 👋

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💀 reminder bestie: only change the vibe, never the facts. every flag, every arg, every path stays exactly where it was. periodt.

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and that's a wrap! this page came from ./drivers/net/ethernet/wangxun..., dated October 2026, and it's wx_set_rar(9) all the way down. mwah 💋🌸✨