OSIOP(4)

💅 OSIOP(4) — osiop(4) — Symbios/NCR 53C710 SCSI driver (Kernel Interfaces Manual) 💅

💖 NAME 💖

osiop — Symbios/NCR 53C710 SCSI driver. That's the name section, bestie, and it ate. 💅

✨ SYNOPSIS ✨

okay so here's the config layout by platform — group chat edition:

🎀 arc

osiop* at jazzio? flags 0x00000

🎀 ews4800mips

osiop* at sbdio? flags 0x00000

🎀 hppa

osiop0 at gsc? flags 0x00000

🎀 mvme68k

osiop0 at pcctwo? ipl 2

and also:

scsibus* at osiop?

🦋 DESCRIPTION 🦋

The osiop driver provides support for the Symbios/NCR 53C710 SCSI controller chip. It's giving main character energy for that chip. 💖

For the Symbios/NCR 53C700 SCSI host adapters, use the oosiop(4) driver — different driver, different vibe. ✨

For the Symbios/NCR 53C8xx PCI SCSI host adapters, use the siop(4) or esiop(4) driver. Choose your fighter. 😌

🎀 CONFIGURATION 🎀

The osiop driver supports the following flags for use in config(1) files — copy these exactly, bestie:

• bits 0-7: disable disconnect/reselect for the corresponding SCSI target
• bits 8-15: disable synchronous negotiation for SCSI target
• bits 16: disable DMA interrupts

"Target" is synonymous with SCSI ID number. iykyk. 🫶

Note that SCSI tape drives should be allowed to perform disconnect/reselect or performance will suffer. So don't be messy with your tape drives, okay? 😭

🌸 SEE ALSO 🌸

cd(4), ch(4), esiop(4), intro(4), oosiop(4), scsi(4), sd(4), siop(4), ss(4), st(4), uk(4), scsipi(9) — go read these if you want the full lore. 📚

👑 HISTORY 👑

The osiop driver first appeared in NetBSD 1.6. The original NCR 53C710 driver appeared in NetBSD 1.0 amiga port, and Izumi Tsutsui ⟨tsutsui@NetBSD.org⟩ modified the driver and made it machine-independent. Iconic behavior, honestly. 👑

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Debian • May 12, 2001 • OSIOP(4) — that's the source/version and date, bestie, and we're out 💖