mucse_poll_and_read_mbx(9)

💅 mucse_poll_and_read_mbx(9) — the glow-up

okay so bestie, we're in the Kernel API Manual today and this little function is literally the "hey, is there a message for me?" + "okay hand it over" combo. The name is mucse_poll_and_read_mbx and yes she does exactly what it says on the tin 🎀

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✨ NAME ✨

mucse_poll_and_read_mbx — wait around for a message notification, then actually receive the message. it's giving "patient but efficient" 💅

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🌸 SYNOPSIS 🌸

int mucse_poll_and_read_mbx (struct mucse_hw *hw , __le32 *msg , u16
size );

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🦋 ARGUMENTS 🦋

• hw — pointer to the HW structure. the whole hardware situation lives here, main character energy fr fr 👑
• msg — the message buffer. this is where the good stuff lands 🍓
• size — length of buffer. gotta know how much room we're working with, no cap

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⭐ RETURN ⭐

Returns 0 if it successfully received a message notification and copied it into the receive buffer 💖 and a negative errno on failure 😭 (so like, if you see a negative number, something did not slay).

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🧚 SEE ALSO 🧚

Kernel file ./drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx.c — that's the home base, iykyk

• mbx_data_rd32(9)
• mbx_data_wr32(9)
• mbx_ctrl_rd32(9)
• mbx_ctrl_wr32(9)
• mucse_mbx_get_lock_pf(9)
• mucse_obtain_mbx_lock_pf(9)
• mucse_release_mbx_lock_pf(9)
• mucse_mbx_get_fwreq(9)
• mucse_mbx_inc_pf_ack(9)
• mucse_read_mbx_pf(9)
• mucse_check_for_msg_pf(9)
• mucse_poll_for_msg(9)
• mucse_mbx_get_fwack(9)
• mucse_mbx_inc_pf_req(9)
• mucse_write_mbx_pf(9)
• mucse_check_for_ack_pf(9)
• mucse_poll_for_ack(9)
• mucse_write_and_wait_ack_mbx(9)
• mucse_mbx_reset(9)
• mucse_init_mbx_params_pf(9)

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and that's the whole page bestie, go read a mailbox or something 🫶

sign-off time: this lil beauty comes from ./drivers/net/ethernet/mucse/r... and it's dated October 2026 — mucse_poll_and_read_mbx(9), periodt 💜🌈