cxgb4_write_rss(9)

💖 cxgb4_write_rss(9) — like, the RSS table glow-up for one specific port 💖

okay so bestie, welcome to the Kernel API Manual, and today's main character is cxgb4_write_rss 🎀 this one's short and sweet, so no excuses — let's get into it ✨

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✨ NAME ✨

cxgb4_write_rss — writes the RSS table for a given port 💅 that's it, that's the gig.

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🦋 SYNOPSIS 🦋

int cxgb4_write_rss (const struct port_info *pi , const u16 *queues );

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🌸 ARGUMENTS 🌸

• pi — the port 🫶 like, the actual struct port_info you're doing this for.
• queues — array of queue indices for RSS 🍓 this is the const u16 * situation right here.

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⭐ DESCRIPTION ⭐

So what it does: it sets up the portion of the HW RSS table for the port's VI (yes, that's the virtual interface, iykyk) so packets get distributed to the Rx queues in queues 💫 lowkey iconic behaviour tbh.

🚨 okay but serious moment: it should never be called before setting up sge eth rx queues. Like, do not. Not me warning you twice. Get those queues set up first, periodt 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c 📁
• cxgb4_change_mac(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_e2cchan(9)
• cxgb4_port_viid(9)
• cxgb4_port_idx(9)
• cxgb_up(9)

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and that's the whole vibe check bestie 🧚💜 this page came from the Kernel API Manual, sourced from ./drivers/net/ethernet/chelsio..., dated October 2026 — go forth and set up your Rx queues first, mwah 💋👑