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.TH "S2IO_ISR" "9" "09 October 2005" "" ""

.SH NAME
s2io_isr \- ISR handler of the device .
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
irqreturn_t s2io_isr  (int \fIirq\fB, void * \fIdev_id\fB, struct pt_regs * \fIregs\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIirq\fB\fR
the irq of the device.
.TP
\fB\fIdev_id\fB\fR
a void pointer to the dev structure of the NIC.
.TP
\fB\fIregs\fB\fR
-- undescribed --
.SH "DESCRIPTION"
.PP
This function is the ISR handler of the device. It 
identifies the reason for the interrupt and calls the relevant 
service routines. As a contongency measure, this ISR allocates the 
recv buffers, if their numbers are below the panic value which is
presently set to 25% of the original number of rcv buffers allocated.
.SH "IRQ_HANDLED"
.PP
will be returned if IRQ was handled by this routine 
.SH "IRQ_NONE"
.PP
will be returned if interrupt is not from our device