From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Laurence Oberman <loberman@redhat.com>
Cc: linux-usb@vger.kernel.org, stable@vger.kernel.org,
emilne@redhat.com, djeffery@redhat.com, apanagio@redhat.com,
torez@redhat.com
Subject: Re: [PATCH] usb: hcd: Revert 306c54d0edb6ba94d39877524dddebaad7770cf2: Try MSI interrupts on PCI devices
Date: Tue, 13 Jul 2021 23:33:59 +0300 [thread overview]
Message-ID: <YO34tyvp/hkO+24F@smile.fi.intel.com> (raw)
In-Reply-To: <1626202242-14984-1-git-send-email-loberman@redhat.com>
On Tue, Jul 13, 2021 at 02:50:42PM -0400, Laurence Oberman wrote:
> Customers have been reporting that the I/O is radically being
> slowed down to HPE virtual USB ILO served DVD images during installation.
Side note:
Simple changing
- retval = pci_alloc_irq_vectors(dev, 1, 1, PCI_IRQ_LEGACY | PCI_IRQ_MSI);
+ retval = pci_alloc_irq_vectors(dev, 1, 1, PCI_IRQ_LEGACY);
should have the same effect without touching tons of a good code.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2021-07-13 20:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-13 18:50 [PATCH] usb: hcd: Revert 306c54d0edb6ba94d39877524dddebaad7770cf2: Try MSI interrupts on PCI devices Laurence Oberman
2021-07-13 19:15 ` Alan Stern
2021-07-13 20:05 ` Laurence Oberman
2021-07-13 20:30 ` Andy Shevchenko
2021-07-13 20:30 ` kernel test robot
2021-07-13 20:33 ` Andy Shevchenko [this message]
2021-07-13 20:44 ` Laurence Oberman
2021-07-13 21:57 ` Laurence Oberman
2021-07-13 23:11 ` kernel test robot
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