From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>, Marc Zygnier <maz@kernel.org>,
Alex Williamson <alex.williamson@redhat.com>,
Kevin Tian <kevin.tian@intel.com>,
Jason Gunthorpe <jgg@nvidia.com>, Megha Dey <megha.dey@intel.com>,
Ashok Raj <ashok.raj@intel.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Andrew Cooper <amc96@cam.ac.uk>, Juergen Gross <jgross@suse.com>,
linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org
Subject: [patch 05/10] genirq/msi: Add domain info flag MSI_FLAG_CAN_EXPAND
Date: Sat, 27 Nov 2021 02:24:37 +0100 (CET) [thread overview]
Message-ID: <20211127000918.779751933@linutronix.de> (raw)
In-Reply-To: 20211126233124.618283684@linutronix.de
Not all MSI domains support runtime expansions of PCI/MSI-X vectors. Add a
domain flag so implementations can opt in.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 2 ++
1 file changed, 2 insertions(+)
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -494,6 +494,8 @@ enum {
MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS = (1 << 9),
/* Free MSI descriptors */
MSI_FLAG_FREE_MSI_DESCS = (1 << 10),
+ /* MSI vectors can be expanded after initial setup */
+ MSI_FLAG_CAN_EXPAND = (1 << 11),
};
int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>, Marc Zygnier <maz@kernel.org>,
Alex Williamson <alex.williamson@redhat.com>,
Kevin Tian <kevin.tian@intel.com>,
Jason Gunthorpe <jgg@nvidia.com>, Megha Dey <megha.dey@intel.com>,
Ashok Raj <ashok.raj@intel.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Andrew Cooper <amc96@cam.ac.uk>, Juergen Gross <jgross@suse.com>,
linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org
Subject: [patch 05/10] genirq/msi: Add domain info flag MSI_FLAG_CAN_EXPAND
Date: Sat, 27 Nov 2021 02:25:05 +0100 (CET) [thread overview]
Message-ID: <20211127000918.779751933@linutronix.de> (raw)
Message-ID: <20211127012505.D8bttXM4Os-TSBreBKr1ggCUFfNmTutGSK8BPR1AJ6o@z> (raw)
In-Reply-To: 20211126233124.618283684@linutronix.de
Not all MSI domains support runtime expansions of PCI/MSI-X vectors. Add a
domain flag so implementations can opt in.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 2 ++
1 file changed, 2 insertions(+)
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -494,6 +494,8 @@ enum {
MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS = (1 << 9),
/* Free MSI descriptors */
MSI_FLAG_FREE_MSI_DESCS = (1 << 10),
+ /* MSI vectors can be expanded after initial setup */
+ MSI_FLAG_CAN_EXPAND = (1 << 11),
};
int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
next prev parent reply other threads:[~2021-11-27 2:18 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-27 1:24 [patch 00/10] genirq/msi, PCI/MSI: Support for dynamic MSI-X vector expansion - Part 4 Thomas Gleixner
2021-11-27 1:24 ` [patch 01/10] genirq/msi: Add range argument to alloc/free MSI domain ops Thomas Gleixner
2021-11-27 1:24 ` Thomas Gleixner
2021-11-27 1:24 ` [patch 02/10] genirq/msi: Add range argument to msi_domain_alloc/free_descs_locked() Thomas Gleixner
2021-11-27 1:25 ` Thomas Gleixner
2021-11-27 1:24 ` [patch 03/10] genirq/msi: Make MSI descriptor alloc/free ready for range allocations Thomas Gleixner
2021-11-27 1:25 ` Thomas Gleixner
2021-11-28 15:57 ` Marc Zyngier
2021-11-28 19:17 ` Thomas Gleixner
2021-11-29 17:28 ` Thomas Gleixner
2021-11-27 1:24 ` Thomas Gleixner [this message]
2021-11-27 1:25 ` [patch 05/10] genirq/msi: Add domain info flag MSI_FLAG_CAN_EXPAND Thomas Gleixner
2021-11-27 1:24 ` [patch 06/10] PCI/MSI: Use range in allocation path Thomas Gleixner
2021-11-27 1:25 ` Thomas Gleixner
2021-11-27 1:24 ` [patch 08/10] PCI/MSI: Provide pci_msi_domain_supports_expand() Thomas Gleixner
2021-11-27 1:25 ` Thomas Gleixner
2021-11-27 1:24 ` [patch 10/10] x86/apic/msi: Support MSI-X vector expansion Thomas Gleixner
2021-11-27 1:25 ` Thomas Gleixner
2021-11-27 1:24 ` [patch 00/10] genirq/msi, PCI/MSI: Support for dynamic MSI-X vector expansion - Part 4 Thomas Gleixner
2021-11-27 1:25 ` [patch 04/10] genirq/msi: Prepare MSI domain alloc/free for range irq allocation Thomas Gleixner
2021-11-27 1:24 ` Thomas Gleixner
2021-11-27 1:25 ` [patch 07/10] PCI/MSI: Make free related functions range based Thomas Gleixner
2021-11-27 1:24 ` Thomas Gleixner
2021-11-27 1:25 ` [patch 09/10] PCI/MSI: Provide pci_msix_expand_vectors[_at]() Thomas Gleixner
2021-11-27 1:24 ` Thomas Gleixner
2021-12-02 1:08 ` Dey, Megha
2021-12-02 10:16 ` Thomas Gleixner
2021-12-02 19:21 ` Raj, Ashok
2021-12-02 20:40 ` Thomas Gleixner
2021-12-03 0:45 ` Raj, Ashok
2021-12-03 12:29 ` Thomas Gleixner
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