From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f171.google.com (mail-pl1-f171.google.com [209.85.214.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2485918EB1; Thu, 22 Aug 2024 21:41:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724362871; cv=none; b=UZuIJEgFtd2wQ98xJvkOiY6friJpSEgpZkiKvfqwy8pbo8XCz9sU6VFiYnQjgdnh64HOuDLpDGioyy/8d3T1zpYw+9Efd1C7eYdWsbDeug8OiRu0t9OKLP2vi9/faA2WkSo5tdSf/OteGWE0HgRBRlgXzOyR2WmTpy0Ral0eOc0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724362871; c=relaxed/simple; bh=OY0Cw4jKHYyA2YTNmNjSXtMsaRpmLSV3pecbLOsimfU=; h=From:Date:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=j8Tgor+qRhJD/+octBax2dwdhQaIcUQXDfepGWU9uASbru+1kvQ1p2X/Si524QHqB0f89Nbp7awfWSYJX0VsmJwQsE3fz1oW7tZrqQRKZHM9FA1d0Y12eBX2AgpJIWITtVsOItiYZXycobg5dQ6O90N0i3CshR1rPXPAbRTWb8Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=dCEOvW2r; arc=none smtp.client-ip=209.85.214.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="dCEOvW2r" Received: by mail-pl1-f171.google.com with SMTP id d9443c01a7336-20219a0fe4dso13418675ad.2; Thu, 22 Aug 2024 14:41:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724362869; x=1724967669; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:date:from:from:to:cc:subject:date:message-id:reply-to; bh=fefpIDiQsvmyVmJ9DTk9OrkozwCKfzpukO3kKB0G7io=; b=dCEOvW2rzl4DmfE1p+TJshEFPJvnzxJhja+dhWHpentCx8mgwQmY2q8ln6UHOM5JhH JaT5yhmqoY/5hve8b5ux27dgk0Dh2YVDo4D1ROlJWaP9rdxVYabWvtdkC2eo+6wP0v27 oXXWs7oPZ0VwHxpHxuKVQJ1oClYtAsYzGewy0ZFH25ueZQgCwMkVT9OFHlVAWJIxyfYH gCg72+wX0yV02FxXQJ7kj9xZqKc4lIv5LlJAm+5NJqtDuBOp/6rGmmdljslfo7KMU2S/ 6U0pAQLuJV+EVB/5hhdwb2ve0hJWQs8ug5d8NJSrGOUuttjrIVKxIj2yIS2R3Eh0BMWP OL3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724362869; x=1724967669; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:date:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=fefpIDiQsvmyVmJ9DTk9OrkozwCKfzpukO3kKB0G7io=; b=HTjTXCXqUJr2h6jp+u+0VhQ7WDafZpBrb5j2VDreZo0lYFIxxxyjU8Y8trmSVNVpFo rd0DKrwKqKJeNFMOrQv4eKZbrSfxIcjJlzhPggZ63dC8a40IQfyBmukHGBd+BloVtIM/ IZx2bsjyuyoYI+kk3avU31ffeE4A6OHuzRbZosd9Ia+aQ0kTCaH+t6XDD69bagjqNAD0 CvGu3EVcENfYBl5XHahUNO23VxmbobPQ/rKsupwOn15Br3ch8xny7WR0OCue/QguxKwI e4jDrWO/BdSe0C8SvHh2ODY7l+mvQY4vqzU6ZPqwAIM70RQF6uxixsh9/WXuewv2eFmJ Mdjg== X-Forwarded-Encrypted: i=1; AJvYcCUU8y0PhB2E0la1mcklsP2G5SmuO3hJuwrR/ZHTRx6SzoEC1gx4p5fGdR+QgUQ91QR64XWWSbFhOd0Cc68C@vger.kernel.org, AJvYcCUZ2o/NkOZpxNFrVmQY1XOURe2vF8wZKIRaVxbXNL+2uraYBJk/QLmI9T9IvwLTpCSyeQEOLwsT3mbb@vger.kernel.org, AJvYcCVKazYZBGDpqyXnV7NNxxZ01bVe2xENEgYo1EJv2eigwowLJPxN7xSSYCmLiF8Nql/Ep2JlAVgyZID5@vger.kernel.org, AJvYcCXY8K1qdghlRdRZXfNx6G/BwkB2el05oZpPDtvHWqCyB0n6W2rTfo6E7BxDCqy4TLyXxgmdaG/j9NMYlQ==@vger.kernel.org X-Gm-Message-State: AOJu0YyJh7/QJFB2CKPSuUo/p0TLgaPbHBKZQBwu2ggSOjXCAtYmLiVn H8TdTg/mJbOX8ecz2b+xPNnGpv0Gu7MWpOHmyKKuBHvIc0ekkxyL X-Google-Smtp-Source: AGHT+IHCWUeOTFC/rJ8NysGSN8g7BvV82Pdq7JDaAlLehwEn9Kj+6aSkyw+tasX7G1339cnBWDepbA== X-Received: by 2002:a17:902:d2d0:b0:1fd:8c25:415c with SMTP id d9443c01a7336-2039e4891ddmr1772985ad.24.1724362869331; Thu, 22 Aug 2024 14:41:09 -0700 (PDT) Received: from fan ([2601:646:8f03:9fee:3cd4:f45f:79d:1096]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2038b7ebe0dsm14920535ad.287.2024.08.22.14.41.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Aug 2024 14:41:09 -0700 (PDT) From: Fan Ni X-Google-Original-From: Fan Ni Date: Thu, 22 Aug 2024 14:41:05 -0700 To: Ira Weiny Cc: Dave Jiang , Jonathan Cameron , Navneet Singh , Chris Mason , Josef Bacik , David Sterba , Petr Mladek , Steven Rostedt , Andy Shevchenko , Rasmus Villemoes , Sergey Senozhatsky , Jonathan Corbet , Andrew Morton , Dan Williams , Davidlohr Bueso , Alison Schofield , Vishal Verma , linux-btrfs@vger.kernel.org, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, nvdimm@lists.linux.dev Subject: Re: [PATCH v3 15/25] cxl/pci: Factor out interrupt policy check Message-ID: References: <20240816-dcd-type2-upstream-v3-0-7c9b96cba6d7@intel.com> <20240816-dcd-type2-upstream-v3-15-7c9b96cba6d7@intel.com> Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240816-dcd-type2-upstream-v3-15-7c9b96cba6d7@intel.com> On Fri, Aug 16, 2024 at 09:44:23AM -0500, Ira Weiny wrote: > Dynamic Capacity Devices (DCD) require event interrupts to process > memory addition or removal. BIOS may have control over non-DCD event > processing. DCD interrupt configuration needs to be separate from > memory event interrupt configuration. > > Factor out event interrupt setting validation. > > Reviewed-by: Dave Jiang > Reviewed-by: Jonathan Cameron > Signed-off-by: Ira Weiny > Reviewed-by: Fan Ni > --- > Changes: > [iweiny: reword commit message] > [iweiny: keep review tags on simple patch] > --- > drivers/cxl/pci.c | 23 ++++++++++++++++------- > 1 file changed, 16 insertions(+), 7 deletions(-) > > diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c > index 17bea49bbf4d..370c74eae323 100644 > --- a/drivers/cxl/pci.c > +++ b/drivers/cxl/pci.c > @@ -738,6 +738,21 @@ static bool cxl_event_int_is_fw(u8 setting) > return mode == CXL_INT_FW; > } > > +static bool cxl_event_validate_mem_policy(struct cxl_memdev_state *mds, > + struct cxl_event_interrupt_policy *policy) > +{ > + if (cxl_event_int_is_fw(policy->info_settings) || > + cxl_event_int_is_fw(policy->warn_settings) || > + cxl_event_int_is_fw(policy->failure_settings) || > + cxl_event_int_is_fw(policy->fatal_settings)) { > + dev_err(mds->cxlds.dev, > + "FW still in control of Event Logs despite _OSC settings\n"); > + return false; > + } > + > + return true; > +} > + > static int cxl_event_config(struct pci_host_bridge *host_bridge, > struct cxl_memdev_state *mds, bool irq_avail) > { > @@ -760,14 +775,8 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge, > if (rc) > return rc; > > - if (cxl_event_int_is_fw(policy.info_settings) || > - cxl_event_int_is_fw(policy.warn_settings) || > - cxl_event_int_is_fw(policy.failure_settings) || > - cxl_event_int_is_fw(policy.fatal_settings)) { > - dev_err(mds->cxlds.dev, > - "FW still in control of Event Logs despite _OSC settings\n"); > + if (!cxl_event_validate_mem_policy(mds, &policy)) > return -EBUSY; > - } > > rc = cxl_event_config_msgnums(mds, &policy); > if (rc) > > -- > 2.45.2 >