From: Thomas Petazzoni thomas.petazzoni@free-electrons.com
Signed-off-by: Thomas Petazzoni thomas.petazzoni@free-electrons.com Signed-off-by: Stefan Roese sr@denx.de Acked-by: Joe Hershberger joe.hershberger@ni.com
---
Changes in v2: - Added Acked-by from Joe
drivers/net/mvpp2.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c index 90ab6d718b..17ce0e9f7d 100644 --- a/drivers/net/mvpp2.c +++ b/drivers/net/mvpp2.c @@ -2352,20 +2352,25 @@ static inline int mvpp2_bm_cookie_pool_get(unsigned long cookie) /* Release buffer to BM */ static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool, dma_addr_t buf_dma_addr, - unsigned long buf_virt_addr) + unsigned long buf_phys_addr) { - mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_virt_addr); + /* MVPP2_BM_VIRT_RLS_REG is not interpreted by HW, and simply + * returned in the "cookie" field of the RX + * descriptor. Instead of storing the virtual address, we + * store the physical address + */ + mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_phys_addr); mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_dma_addr); }
/* Refill BM pool */ static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm, dma_addr_t dma_addr, - u32 cookie) + phys_addr_t phys_addr) { int pool = mvpp2_bm_cookie_pool_get(bm);
- mvpp2_bm_pool_put(port, pool, dma_addr, cookie); + mvpp2_bm_pool_put(port, pool, dma_addr, phys_addr); }
/* Allocate buffers for the pool */