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Date:      Mon, 13 Dec 2010 21:00:53 +0530
From:      "Jayachandran C." <jchandra@freebsd.org>
To:        John Baldwin <jhb@freebsd.org>, Andriy Gapon <avg@freebsd.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r216375 - head/sys/mips/rmi/dev/xlr
Message-ID:  <AANLkTikkapY3qDeYFUr_npG44KF8wtceYsmCBLxs%2BktE@mail.gmail.com>
In-Reply-To: <201012130747.52865.jhb@freebsd.org>
References:  <201012111021.oBBALcrV004450@svn.freebsd.org> <201012130747.52865.jhb@freebsd.org>

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On Mon, Dec 13, 2010 at 6:17 PM, John Baldwin <jhb@freebsd.org> wrote:
> On Saturday, December 11, 2010 5:21:38 am Andriy Gapon wrote:
>> Author: avg
>> Date: Sat Dec 11 10:21:38 2010
>> New Revision: 216375
>> URL: http://svn.freebsd.org/changeset/base/216375
>>
>> Log:
>> =A0 fix atomic_set_xxx misuse in rge
>>
>> =A0 It seems that atomic_set_xxx and atomic_store_xxx were confused.
>>
>> =A0 Reviewed by: =A0 =A0 =A0 =A0jhb (general issue)
>> =A0 MFC after: =A03 weeks
>>
>> Modified:
>> =A0 head/sys/mips/rmi/dev/xlr/rge.c
>>
>> Modified: head/sys/mips/rmi/dev/xlr/rge.c
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
>> --- head/sys/mips/rmi/dev/xlr/rge.c =A0 Sat Dec 11 10:18:05 2010 =A0 =A0=
 =A0 =A0(r216374)
>> +++ head/sys/mips/rmi/dev/xlr/rge.c =A0 Sat Dec 11 10:21:38 2010 =A0 =A0=
 =A0 =A0(r216375)
>> @@ -170,7 +170,7 @@ extern uint32_t cpu_ltop_map[32];
>> =A0static int port_counters[4][8] __aligned(XLR_CACHELINE_SIZE);
>>
>> =A0#define port_inc_counter(port, counter) =A0 =A0 =A0atomic_add_int(&po=
rt_counters[port][(counter)], 1)
>> -#define port_set_counter(port, counter, value) =A0 =A0 =A0 atomic_set_i=
nt(&port_counters[port][(counter)], (value))
>> +#define port_set_counter(port, counter, value) =A0 =A0 =A0 atomic_store=
_int(&port_counters[port][(counter)], (value))
>> =A0#else
>> =A0#define port_inc_counter(port, counter) =A0 =A0 =A0/* Nothing */
>> =A0#define port_set_counter(port, counter, value) =A0 =A0 =A0 /* Nothing=
 */
>> @@ -2281,7 +2281,7 @@ rmi_xlr_mac_open(struct rge_softc *sc)
>> =A0 =A0 =A0 mtx_unlock_spin(&priv->lock);
>>
>> =A0 =A0 =A0 for (i =3D 0; i < 8; i++) {
>> - =A0 =A0 =A0 =A0 =A0 =A0 atomic_set_int(&(priv->frin_to_be_sent[i]), 0)=
;
>> + =A0 =A0 =A0 =A0 =A0 =A0 atomic_store_int(&(priv->frin_to_be_sent[i]), =
0);
>
> Err, there is no such op for this. =A0If you don't need a memory barrier =
then a
> simple assignment to 0 should suffice.

This is the deprecated  driver for the XLR's on-chip network
interface. There is a new driver for this, so you can ignore problems
in this file - it should be removed soon.

Thanks,
JC



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