Searched hist:ee877b81c6b92c190e7186c1ffd054804b426c02 (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/arch/s390/pci/ |
| H A D | pci_dma.c | diff ee877b81c6b92c190e7186c1ffd054804b426c02 Fri Aug 19 02:12:09 CDT 2016 Sebastian Ott <sebott@linux.vnet.ibm.com> s390/pci_dma: improve map_sg
Our map_sg implementation mapped sg entries independently of each other.
For ease of use and possible performance improvements this patch changes
the implementation to try to map as many (likely physically non-contiguous)
sglist entries as possible into a contiguous DMA segment.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|