qla4_83xx_poll_reg(9)

💅 qla4_83xx_poll_reg(9) — the Kernel API Manual, bestie edition 🎀

okay so this is a page from the Kernel API Manual and it's about qla4_83xx_poll_reg, which lowkey does exactly what it says on the tin: it polls a register until the vibe is right. let me break it down for you 🫶

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✨ NAME ✨

qla4_83xx_poll_reg — poll the given CRB addr for duration msecs till value read ANDed with test_mask is equal to test_result.

like, it just sits there and keeps checking the register until the masked value matches what you're looking for. main character energy of a function ngl 💅

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🌸 SYNOPSIS 🌸

int qla4_83xx_poll_reg (struct scsi_qla_host *ha , uint32_t addr , int duration , uint32_t test_mask , uint32_t test_result );

returns an int, takes five args, no cap ✨

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🦋 ARGUMENTS 🦋

• ha — pointer to the adapter structure. it's giving "hi bestie, which adapter are we talking to" 💖
• addr — the CRB register address. this is the spot we're stalking 👀
• duration — poll for a total of "duration" msecs. so like, the patience budget fr fr ⏳
• test_mask — the mask value is read with "test_mask". literally the AND partner 🎀
• test_result — compare (valuetest_mask) with test_result. yes, that's the exact wording on the page, i'm not fixing it, that's iconic 🙈

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💜 SEE ALSO 💜

• kernel file ./drivers/scsi/qla4xxx/ql4_83xx.c — the literal home of this function 🏠
• qla4_83xx_need_reset_handler(9)
• qla4_83xx_read_reset_template(9)
• qla4_83xx_read_write_crb_reg(9)
• qla4_83xx_rmw_crb_reg(9)
• qla4_83xx_process_reset_template(9)
• qla4_83xx_isp_reset(9)
• qla4_83xx_eport_init(9)
• qla4_83xx_is_detached(9)

go read those too, the whole friend group ate 🔥

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ngl there are no OPTIONS, no ENVIRONMENT variables, no exit statuses and no bug notes on this page — that's the whole thing, and every bit of it is right here. no gatekeeping 💯

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and that's the tea ☕ this one lives in ./drivers/scsi/qla4xxx, dated October 2026, brought to you by the good people of the kernel docs. periodt. 👑💖