[+cc Paul] On Thu, Jul 09, 2015 at 04:00:35PM +0800, Jiang Liu wrote: > Recently Marc Zyngier <marc.zyngier@xxxxxxx> has posted a patch set at > https://lkml.org/lkml/2015/7/7/712 > to enhance PCI MSI code to support generic MSI. > > This is a companion patch set to refine struct msi_desc and related data > structures to support generic MSI, and it would be better to combined with > Marc's patch set. It's also requested by > Stuart Yoder <stuart.yoder@xxxxxxxxxxxxx> > > It first introduces a helper function msi_desc_to_pci_sysdata(), and > convert current PCI drivers to use helper functions to access fields > in struct msi_desc. > Then it moves msi_list from struct pci_dev into struct device and > refines struct msi_desc. > At last it moves alloc_msi_entry() into kernel/irq/msi.c for reuse. > > Currently msi_desc_to_pci_sysdata() and msi_desc_to_pci_dev() are > implemented as normal functions instead of inlines to avoid header file > inclusion issue. If inlined version is preferred for performance, we could > move all of first_pci_msi_entry, for_each_pci_msi_entry, msi_desc_to_pci_dev > and msi_desc_to_pci_sysdata from linxu/kernel/msi.h into linux/kernel/pci.h. > > This patch set is based on v4.2-rc1 and passes 0day test suite. You > may access the code at: > https://github.com/jiangliu/linux.git msi_desc_v1 > > Thanks! > Gerry > > Jiang Liu (12): > PCI: Add helper function msi_desc_to_pci_sysdata() > MIPS, PCI: Use for_pci_msi_entry() to access MSI device list > PowerPC, PCI: Use for_pci_msi_entry() to access MSI device list > s390/pci: Use for_pci_msi_entry() to access MSI device list > x86, PCI: Use for_pci_msi_entry() to access MSI device list > PCI: Use for_pci_msi_entry() to access MSI device list > sparc, PCI: Use helper functions to access fields in struct msi_desc > PCI: Use helper functions to access fields in struct msi_desc > genirq: Move msi_list from struct pci_dev to struct device > genirq, PCI: Store 'struct device *' instead 'struct pci_dev *' in > struct msi_desc > genirq, PCI: Reorginize struct msi_desc to prepare for support of > generic MSI > genirq, PCI: Move alloc_msi_entry() from PCI MSI code into generic > MSI code Sergei pointed out typos in the "Use for_pci_msi_entry()" subject and changelogs; I assume you'll fix those. Paul had a question on 09/12 regarding Kconfig, and I didn't see a resolution to that. For the PCI parts: Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> Thomas, I assume you'll take this via your tree. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
