cxgb4_port_e2cchan(9)

💅 cxgb4_port_e2cchan — from the cxgb4 Kernel API Manual, section 9 🎀

okay so bestie, sit down, hydrate, and let me tell you about the tiniest little glow-up function in the Chelsio universe ✨ This one lives in the Kernel API Manual (that's the (9) after its name, iykyk) and it is, and I cannot stress this enough, iconic in its simplicity.

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✨ NAME ✨

cxgb4_port_e2cchan — get the HW c-channel of a port 💫

like, that's it. that's the whole job. she's focused, she's got main character energy, she does one thing and she ate.

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🦋 SYNOPSIS 🦋

unsigned int cxgb4_port_e2cchan (const struct net_device *dev );

literally just hand her a device and she hands you back an unsigned int. no drama, no cap. 💖

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🌸 ARGUMENTS 🌸

• dev — the net device for the port 🫶 literally the only thing you gotta give her. one single const struct net_device * and she's thriving.

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👑 DESCRIPTION 👑

Return the HW RX c-channel of the given port.

that's the vibe check and she passed it 💅 you pass in your port's net device, she gives you back its hardware RX c-channel. no side quests, no "while you're here could you also—", just the answer. she is lowkey the friend who replies to your text in 0.3 seconds with exactly the info you needed. ⭐

ngl this is a lookup, not an adventure — don't go expecting her to configure anything for you, because that is not the assignment. 🙈

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🌈 SEE ALSO 🌈

like all good group chats, this one comes with the whole friend group 💜:

• the kernel source file ./drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c — go read it, she's right there 🍓
• cxgb4_change_mac(9)
• cxgb4_write_rss(9)
• setup_rss(9)
• setup_sge_queues(9)
• cxgb4_set_rspq_intr_params(9)
• cxgb4_create_server(9)
• cxgb4_best_mtu(9)
• cxgb4_best_aligned_mtu(9)
• cxgb4_port_chan(9)
• cxgb4_port_viid(9)
• cxgb4_port_idx(9)
• cxgb_up(9)

fr fr, that's the whole squad. go say hi. 🧚

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and that's the page, bestie! 🎀 this adorable little entry ships out of the kernel source at ./drivers/net/ethernet/chelsio..., dated October 2026, and it's filed under cxgb4_port_e2cchan(9). slay, go get that c-channel. 🔥👑