net: stmmac: fix dma physical address of descriptor when display ring

Browse source

Driver uses dma_alloc_coherent to allocate dma memory for descriptors,
dma_alloc_coherent will return both the virtual address and physical
address. AFAIK, virt_to_phys could not convert virtual address to
physical address, for which memory is allocated by dma_alloc_coherent.

dwmac4_display_ring() function is broken for various descriptor, it only
support normal descriptor(struct dma_desc) now, this patch also extends to
support all descriptor types.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Joakim Zhang 2021-02-25 17:01:12 +08:00 • committed by Jakub Kicinski

parent c511819d13

commit bfaf91ca84

5 changed files with 94 additions and 34 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

50

drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c

View file

9

drivers/net/ethernet/stmicro/stmmac/enh_desc.c

View file

3

drivers/net/ethernet/stmicro/stmmac/hwif.h

View file

9

drivers/net/ethernet/stmicro/stmmac/norm_desc.c

View file

57

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

View file