From owner-freebsd-hackers Thu Mar 30 15:34:17 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id PAA02136 for hackers-outgoing; Thu, 30 Mar 1995 15:34:17 -0800 Received: from cs.sunysb.edu (sbcs.sunysb.edu [130.245.1.15]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id PAA02130 for ; Thu, 30 Mar 1995 15:34:15 -0800 Received: from sbgrad9.csdept (sbgrad9.cs.sunysb.edu [130.245.2.29]) by cs.sunysb.edu (8.6.11/8.6.9) with SMTP id SAA24705 for ; Thu, 30 Mar 1995 18:34:13 -0500 Date: Thu, 30 Mar 1995 18:34:13 -0500 From: Michael Vernick Message-Id: <199503302334.SAA24705@cs.sunysb.edu> Received: by sbgrad9.csdept (4.1/SMI-4.1) id AA07566; Thu, 30 Mar 95 18:34:08 EST To: freebsd-hackers@FreeBSD.org Subject: help with splbio, splnet, spl... Sender: hackers-owner@FreeBSD.org Precedence: bulk Can someone point me to some documentation that explains how the spl interrupts work? For example, in the Scsi code (scsi_scsi_cmd in scsi_base.c) just before a command is sent to the adapter, a call is made to splbio(). Does this mask all I/O interrupts? Network interrupts too? Thanks. Michael Vernick