From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 4 Sep 2013 20:47:16 +0200 From: Alexander Gordeev To: Tejun Heo Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-pci@vger.kernel.org, linux-ide@vger.kernel.org, Ingo Molnar , Joerg Roedel , Jan Beulich , Bjorn Helgaas Subject: Re: [PATCH 3/4] AHCI: Conserve interrupts with pci_enable_msi_block_part() interface Message-ID: <20130904184715.GA24341@dhcp-26-207.brq.redhat.com> References: <3bb1b4375655ecfde5017cc70973d078f2434d5d.1378111919.git.agordeev@redhat.com> <20130903141824.GD10522@htj.dyndns.org> <20130903161906.GC14221@dhcp-26-207.brq.redhat.com> <20130903182731.GA27092@mtj.dyndns.org> <20130904072256.GA8726@dhcp-26-207.brq.redhat.com> <20130904145559.GB25788@mtj.dyndns.org> <20130904161442.GE8726@dhcp-26-207.brq.redhat.com> <20130904180607.GD26609@mtj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20130904180607.GD26609@mtj.dyndns.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: On Wed, Sep 04, 2013 at 02:06:07PM -0400, Tejun Heo wrote: > I don't think it's necessary / a good idea to try to support > everything. Just following the spec would be fine. If that doesn't > work for too many devices, maybe just do one fallback? Calling pci_enable_msi_block_part() in a loop may seem not that terrible if you think of the original interface - pci_enable_msi_block(). If we were to enable multiple MSIs using that one we still had to use it pretty much the same way ;) Anyway. I will send a version which reads MMC out. > Thanks. > > -- > tejun -- Regards, Alexander Gordeev agordeev@redhat.com