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Thu, 16 Apr 2020 06:08:03 +0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp22036.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 03G682BF33358242 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 16 Apr 2020 06:08:02 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DCB34B2070; Thu, 16 Apr 2020 06:08:01 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DBFBCB205F; Thu, 16 Apr 2020 06:08:00 +0000 (GMT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 16 Apr 2020 06:08:00 +0000 (GMT) Subject: [PATCH v11 13/14] powerpc/vas: Free send window in VAS instance after credits returned From: Haren Myneni To: mpe@ellerman.id.au In-Reply-To: <1587016214.2275.1036.camel@hbabu-laptop> References: <1587016214.2275.1036.camel@hbabu-laptop> Content-Type: text/plain; charset="UTF-8" Date: Wed, 15 Apr 2020 23:07:36 -0700 Message-ID: <1587017256.2275.1076.camel@hbabu-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-16_01:2020-04-14, 2020-04-16 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=3 clxscore=1015 malwarescore=0 mlxlogscore=999 bulkscore=0 mlxscore=0 phishscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004160038 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mikey@neuling.org, srikar@linux.vnet.ibm.com, frederic.barrat@fr.ibm.com, ajd@linux.ibm.com, linux-kernel@vger.kernel.org, npiggin@gmail.com, hch@infradead.org, oohall@gmail.com, clg@kaod.org, sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, herbert@gondor.apana.org.au Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" NX may be processing requests while trying to close window. Wait until all credits are returned and then free send window from VAS instance. Signed-off-by: Haren Myneni --- arch/powerpc/platforms/powernv/vas-window.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c index d0c07cf..e15b405 100644 --- a/arch/powerpc/platforms/powernv/vas-window.c +++ b/arch/powerpc/platforms/powernv/vas-window.c @@ -1316,14 +1316,14 @@ int vas_win_close(struct vas_window *window) unmap_paste_region(window); - clear_vinst_win(window); - poll_window_busy_state(window); unpin_close_window(window); poll_window_credits(window); + clear_vinst_win(window); + poll_window_castout(window); /* if send window, drop reference to matching receive window */ -- 1.8.3.1