mptscsih_IssueTaskMgmt(9)

💅 mptscsih_IssueTaskMgmt(9) — the Kernel API Manual glow-up

okay so bestie, gather round, because we're diving into mptscsih_IssueTaskMgmt — the generic send Task Management function 🎀 and yes, it's exactly as iconic as it sounds. This little gem lives in the Kernel API Manual, so you already know it's giving main-character kernel energy ✨

---

🦋 SYNOPSIS

int mptscsih_IssueTaskMgmt (MPT_SCSI_HOST *hd , u8 type , u8 channel ,
u8 id , u64 lun , int ctx2abort , ulong timeout );

that's the whole vibe right there 💖 like, she takes seven args and returns an int, no cap.

---

🌸 ARGUMENTS

every one of these matters, so let's go through them like we're doing a vibe check on each 🫶

• hd — pointer to the MPT_SCSI_HOST structure. yes, it's a pointer, it's a struct, it's the whole main character of the argument list 👑
• type — the Task Management type. this is the one that decides what kind of task management we're even doing 💫
• channel — channel number for task management 📡
• id — Logical Target ID for reset (if appropriate). note the "if appropriate" — not every task type cares, iykyk 🙈
• lun — Logical Unit for reset (if appropriate). again, only if appropriate, so don't come for me 💅
• ctx2abort — Context for the task to be aborted (if appropriate) 🔥
• timeout — timeout for task management control ⏰ like, how long we're willing to wait before we're done with this whole situation

---

✨ DESCRIPTION

okay so here's the important bit, and I need you to actually read this one because it's a real caveat, not just vibes 😭

Remark: _HardResetHandler can be invoked from an interrupt thread (timer) or a non-interrupt thread. In the former, must not call schedule.

literally, if you're in the interrupt thread (that's the timer one), do not call schedule. that's the rule, that's the law, periodt 💀

also, so important: Not all fields are meaningfull for all task types. yeah, that's exactly how it's spelled in the original, "meaningfull" with the double L — I'm not fixing it, I'm honoring it 🎀 so don't assume every single arg is doing something for every type, because she will simply ignore the ones she doesn't need 🙈

and the return? it Returns 0 for SUCCESS, or FAILED. that's it, that's the whole deal — either 0 (slay ✅) or FAILED (not slay 💀).

---

🌈 SEE ALSO

the whole friend group, all linked together, all iconic in their own right 💜

• Kernel file ./drivers/message/fusion/mptscsih.c — the source file itself, the mothership 🏠
• mptscsih_info_scsiio(9)
• mptscsih_info(9)
• mptscsih_qcmd(9)
• mptscsih_abort(9)
• mptscsih_dev_reset(9)
• mptscsih_bus_reset(9)
• mptscsih_host_reset(9)
• mptscsih_taskmgmt_complete(9)
• mptscsih_get_scsi_lookup(9)
• mptscsih_getclear_scsi_lookup(9)
• mptscsih_set_scsi_lookup(9)
• SCPNT_TO_LOOKUP_IDX(9)
• mptscsih_get_completion_code(9)
• mptscsih_do_cmd(9)
• mptscsih_synchronize_cache(9)

like, go read them, they're all right there, no gatekeeping 🌸

---

and that's the page bestie!! 🎀 straight from ./drivers/message/fusion, dated October 2026, living in the Kernel API Manual as mptscsih_IssueTaskMgmt(9) — go forth and send those task management functions responsibly, mwah 💋💖