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net: mvpp2: store physical address of buffer in rx_desc->buf_cookie

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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>
This commit is contained in:
Thomas Petazzoni 2017-02-20 10:37:59 +01:00 committed by Stefan Roese
parent 15f4df3091
commit cd9ee19226
1 changed files with 9 additions and 4 deletions
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13
drivers/net/mvpp2.c
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@ -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 */