lpfc_sli_fp_intr_handler(9)

📦 version 7.3.1, in nixpkgs unstable

✨ lpfc_sli_fp_intr_handler ✨ (that's the 9th section, bestie, it's giving kernel API realness 💅)

okay so this is the lpfc_sli_fp_intr_handler page from the Kernel API Manual, and we're about to get into the fast-path interrupt handler for the SLI-3 device. stay with me, it's gonna be iconic 🫶

🎀 NAME 🎀

lpfc_sli_fp_intr_handler — literally the fast-path interrupt handler for the SLI-3 device, no cap.

🦋 SYNOPSIS 🦋

irqreturn_t lpfc_sli_fp_intr_handler (int irq , void *dev_id );

🌸 ARGUMENTS 🌸

  • irq — the interrupt number, bestie. that's it, that's the vibe. 💖
  • dev_id — the device context pointer. it's giving "who dis" but for the hardware. 🎀

💫 DESCRIPTION 💫

okay so here's the tea, bestie ☕✨

This function is directly called from the PCI layer as an interrupt service routine when a device with the SLI-3 interface spec is enabled with MSI-X multi-message interrupt mode and there's a fast-path FCP IOCB ring event in the HBA. like, that's the whole mood. 🔥

BUT. (and there's always a but, right? 😭) when the device is enabled with either MSI or Pin-IRQ interrupt mode, this function gets called as part of the device-level interrupt handler instead. different fit, same function. 💅

Also, when the PCI slot is in error recovery OR the HBA is undergoing initialization, the interrupt handler will not process the interrupt. it's like "not today, satan" 🙈

The SCSI FCP fast-path ring events are handled in the interrupt context. This function is called without any lock held. big deal, lowkey. Then it gets the hbalock to access and update SLI data structures. you betta believe it's grabbing that lock. 🔒✨

When everything goes right, this function returns IRQ_HANDLED. when the interrupt is not handled (aka you got nothing, bestie), it returns IRQ_NONE. periodt. 💀

👑 SEE ALSO 👑

okay bestie, here's the full squad of functions you might wanna check out next. you're welcome, this list is LONG and I didn't skip a single one, no cap. 🌈

Kernel file ./drivers/scsi/lpfc/lpfc_sli.c

and that's the whole page, bestie! 💖✨ this little gem lives in the kernel source at ./drivers/scsi/lpfc, and the page is dated October 2026. slay, go read some kernel code, ily 🫶🎀

📦 where this page comes from