From: Ming Lei <ming.lei@redhat.com>
To: Christoph Hellwig <hch@lst.de>,
Bjorn Helgaas <helgaas@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, Sagi Grimberg <sagi@grimberg.me>,
linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org, Ming Lei <ming.lei@redhat.com>
Subject: [PATCH 0/5] genirq/affinity: introduce .setup_affinity to support allocating interrupt sets
Date: Fri, 25 Jan 2019 17:53:42 +0800 [thread overview]
Message-ID: <20190125095347.17950-1-ming.lei@redhat.com> (raw)
Hi,
The current support for allocating interrupt sets requires that same 'max_vec'
and 'min_vec' is passed to pci_alloc_irq_vectors_affinity(), then driver has to
try to allocate again and again until it succeeds.
This patch introduces .setup_affinity callback, and we can use it to
re-caculate interrupt sets and build affinity for each set after
irq vectors are allocated.
Turns out both genirq/affinity and nvme code get simplified a lot.
Please review and comment!
Ming Lei (5):
genirq/affinity: move allocation of 'node_to_cpumask' to
irq_build_affinity_masks
genirq/affinity: allow driver to setup managed IRQ's affinity
genirq/affinity: introduce irq_build_affinity()
nvme-pci: simplify nvme_setup_irqs() via .setup_affinity callback
genirq/affinity: remove support for allocating interrupt sets
drivers/nvme/host/pci.c | 97 +++++++++++++++++++++--------------------
drivers/pci/msi.c | 14 ------
include/linux/interrupt.h | 42 ++++++++++++------
kernel/irq/affinity.c | 108 ++++++++++++++++++++++++----------------------
4 files changed, 133 insertions(+), 128 deletions(-)
--
2.9.5
next reply other threads:[~2019-01-25 9:54 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-25 9:53 Ming Lei [this message]
2019-01-25 9:53 ` [PATCH 1/5] genirq/affinity: move allocation of 'node_to_cpumask' to irq_build_affinity_masks Ming Lei
2019-02-07 22:02 ` Bjorn Helgaas
2019-02-10 19:01 ` [tip:irq/core] genirq/affinity: Move allocation of 'node_to_cpumask' to irq_build_affinity_masks() tip-bot for Ming Lei
2019-01-25 9:53 ` [PATCH 2/5] genirq/affinity: allow driver to setup managed IRQ's affinity Ming Lei
2019-02-07 22:21 ` Bjorn Helgaas
2019-02-10 9:22 ` Ming Lei
2019-02-10 16:30 ` Thomas Gleixner
2019-02-11 3:54 ` Ming Lei
2019-02-11 14:39 ` Bjorn Helgaas
2019-02-11 22:38 ` Thomas Gleixner
2019-02-12 11:17 ` Ming Lei
2019-01-25 9:53 ` [PATCH 3/5] genirq/affinity: introduce irq_build_affinity() Ming Lei
2019-01-25 9:53 ` [PATCH 4/5] nvme-pci: simplify nvme_setup_irqs() via .setup_affinity callback Ming Lei
2019-02-10 16:39 ` Thomas Gleixner
2019-02-11 3:58 ` Ming Lei
2019-02-10 18:49 ` Thomas Gleixner
2019-02-11 4:09 ` Ming Lei
2019-01-25 9:53 ` [PATCH 5/5] genirq/affinity: remove support for allocating interrupt sets Ming Lei
2019-02-07 22:22 ` Bjorn Helgaas
2019-01-25 9:56 ` [PATCH 0/5] genirq/affinity: introduce .setup_affinity to support " Ming Lei
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