qla4xxx_mailbox_command(9)

💌 qla4xxx_mailbox_command(9) — Kernel API Manual

okay so bestie, welcome to qla4xxx_mailbox_command(9) — the kernel-API manual page you didn't know you needed. grab a snack 🍓, this one's short but she's important.

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✨ NAME ✨

qla4xxx_mailbox_command — she issues mailbox commands. that's the whole vibe. 💅

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🌸 SYNOPSIS 🌸

int qla4xxx_mailbox_command (struct scsi_qla_host *ha , uint8_t inCount , uint8_t outCount , uint32_t *mbx_cmd , uint32_t *mbx_sts );

yup, that's the whole signature — five args, returns an int, iconic. 👑

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🎀 ARGUMENTS 🎀

• ha — pointer to the host adapter structure. like, the main character of this whole operation fr. 🫶
• inCount — how many mailbox registers we're loading up. as many as there are, bestie. ✨
• outCount — how many mailbox registers come back out. what goes in must come out (sometimes). 🌈
• mbx_cmd — data pointer for the mailbox in registers. the goods. the payload. 💖
• mbx_sts — data pointer for the mailbox out registers. the receipts. 🧾

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🦋 DESCRIPTION 🦋

so this routine issues mailbox commands and waits for completion. like, she stands there. patiently. watching. 👀

but — and this is the plot twist — if outCount is 0, this routine completes successfully WITHOUT waiting for the mailbox command to complete. not me just dipping out the door before the job's done 💀 she's done, she's out, she said good luck and left.

lowkey important detail: that "success" is real success, no cap. outCount of 0 means no waiting, not no success. ✨

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👑 SEE ALSO 👑

the kernel file that holds all the lore:

./drivers/scsi/qla4xxx/ql4_mbx.c

and the whole friend group, in order, no skipping 💅:

• qla4xxx_is_intr_poll_mode(9)
• qla4xxx_get_minidump_template(9)
• qla4xxx_req_template_size(9)
• qla4xxx_initialize_fw_cb(9)
• qla4xxx_get_dhcp_ip_address(9)
• qla4xxx_get_firmware_state(9)
• qla4xxx_get_firmware_status(9)
• qla4xxx_set_ddb_entry(9)
• qla4xxx_get_crash_record(9)
• qla4xxx_get_conn_event_log(9)
• qla4xxx_abort_task(9)
• qla4xxx_reset_lun(9)
• qla4xxx_reset_target(9)
• qla4xxx_about_firmware(9)
• qla4xxx_set_chap(9)
• qla4xxx_get_chap_index(9)
• qla4_84xx_extend_idc_tmo(9)
• qla4_8xxx_set_param(9)
• qla4_83xx_post_idc_ack(9)

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aaaand that's the page, bestie 🎀 this lil corner of the kernel lives at ./drivers/scsi/qla4xxx and this edition is dated October 2026. go forth and issue those mailbox commands responsibly. mwah. 💖✨🦋