RE: [PATCH 02/19] megaraid_sas: Add support for FW snap dump

2018-10-15 Thread Shivasharan Srikanteshwara
> > + > > + instance->snapdump_prop = > > + pci_alloc_consistent(pdev, > > +sizeof(struct > MR_SNAPDUMP_PROPERTIES), > > +>snapdump_prop_h); > > No new calls to the PCI DMA API please. > >

Re: [PATCH 02/19] megaraid_sas: Add support for FW snap dump

2018-10-14 Thread Christoph Hellwig
> + > + instance->snapdump_prop = > + pci_alloc_consistent(pdev, > + sizeof(struct > MR_SNAPDUMP_PROPERTIES), > + >snapdump_prop_h); No new calls to the PCI DMA API please. Please

[PATCH 02/19] megaraid_sas: Add support for FW snap dump

2018-10-12 Thread Shivasharan S
Latest firmware adds a mechanism to save firmware logs just before controller reset on pre-allocated internal controller DRAM. This feature is called snapdump which will help debugging firmware issues. This feature requires extra time and firmware reports these values through new driver interface.