diff options
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.c | 17 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_emac.c | 6 |
4 files changed, 24 insertions, 9 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 888708ceb13c..8ac60c7a2a23 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -424,7 +424,7 @@ void cpsw_rx_handler(void *token, int len, int status) return; ret = cpdma_chan_submit(priv->rxch, skb, skb->data, - skb_tailroom(skb), GFP_KERNEL); + skb_tailroom(skb), 0, GFP_KERNEL); } WARN_ON(ret < 0); } @@ -705,7 +705,7 @@ static int cpsw_ndo_open(struct net_device *ndev) if (!skb) break; ret = cpdma_chan_submit(priv->rxch, skb, skb->data, - skb_tailroom(skb), GFP_KERNEL); + skb_tailroom(skb), 0, GFP_KERNEL); if (WARN_ON(ret < 0)) break; } @@ -766,7 +766,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb, skb_tx_timestamp(skb); ret = cpdma_chan_submit(priv->txch, skb, skb->data, - skb->len, GFP_KERNEL); + skb->len, 0, GFP_KERNEL); if (unlikely(ret != 0)) { cpsw_err(priv, tx_err, "desc submit failed\n"); goto fail; diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index f8629186afbe..198cf18dc7fc 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -60,6 +60,9 @@ #define CPDMA_DESC_EOQ BIT(28) #define CPDMA_DESC_TD_COMPLETE BIT(27) #define CPDMA_DESC_PASS_CRC BIT(26) +#define CPDMA_DESC_TO_PORT_EN BIT(20) +#define CPDMA_TO_PORT_SHIFT 16 +#define CPDMA_DESC_PORT_MASK (BIT(18) | BIT(17) | BIT(16)) #define CPDMA_TEARDOWN_VALUE 0xfffffffc @@ -132,6 +135,14 @@ struct cpdma_chan { #define chan_write(chan, fld, v) __raw_writel(v, (chan)->fld) #define desc_write(desc, fld, v) __raw_writel((u32)(v), &(desc)->fld) +#define cpdma_desc_to_port(chan, mode, directed) \ + do { \ + if (!is_rx_chan(chan) && ((directed == 1) || \ + (directed == 2))) \ + mode |= (CPDMA_DESC_TO_PORT_EN | \ + (directed << CPDMA_TO_PORT_SHIFT)); \ + } while (0) + /* * Utility constructs for a cpdma descriptor pool. Some devices (e.g. davinci * emac) have dedicated on-chip memory for these descriptors. Some other @@ -662,7 +673,7 @@ static void __cpdma_chan_submit(struct cpdma_chan *chan, } int cpdma_chan_submit(struct cpdma_chan *chan, void *token, void *data, - int len, gfp_t gfp_mask) + int len, int directed, gfp_t gfp_mask) { struct cpdma_ctlr *ctlr = chan->ctlr; struct cpdma_desc __iomem *desc; @@ -692,6 +703,7 @@ int cpdma_chan_submit(struct cpdma_chan *chan, void *token, void *data, buffer = dma_map_single(ctlr->dev, data, len, chan->dir); mode = CPDMA_DESC_OWNER | CPDMA_DESC_SOP | CPDMA_DESC_EOP; + cpdma_desc_to_port(chan, mode, directed); desc_write(desc, hw_next, 0); desc_write(desc, hw_buffer, buffer); @@ -782,7 +794,8 @@ static int __cpdma_chan_process(struct cpdma_chan *chan) status = -EBUSY; goto unlock_ret; } - status = status & (CPDMA_DESC_EOQ | CPDMA_DESC_TD_COMPLETE); + status = status & (CPDMA_DESC_EOQ | CPDMA_DESC_TD_COMPLETE | + CPDMA_DESC_PORT_MASK); chan->head = desc_from_phys(pool, desc_read(desc, hw_next)); chan_write(chan, cp, desc_dma); diff --git a/drivers/net/ethernet/ti/davinci_cpdma.h b/drivers/net/ethernet/ti/davinci_cpdma.h index 8d2aeb2096ac..a97d6ab30941 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.h +++ b/drivers/net/ethernet/ti/davinci_cpdma.h @@ -24,6 +24,8 @@ #define __chan_linear(chan_num) ((chan_num) & (CPDMA_MAX_CHANNELS - 1)) #define chan_linear(chan) __chan_linear((chan)->chan_num) +#define CPDMA_RX_SOURCE_PORT(__status__) ((__status__ >> 16) & 0x7) + struct cpdma_params { struct device *dev; void __iomem *dmaregs; @@ -82,7 +84,7 @@ int cpdma_chan_dump(struct cpdma_chan *chan); int cpdma_chan_get_stats(struct cpdma_chan *chan, struct cpdma_chan_stats *stats); int cpdma_chan_submit(struct cpdma_chan *chan, void *token, void *data, - int len, gfp_t gfp_mask); + int len, int directed, gfp_t gfp_mask); int cpdma_chan_process(struct cpdma_chan *chan, int quota); int cpdma_ctlr_int_ctrl(struct cpdma_ctlr *ctlr, bool enable); diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 242ec55110d2..52c05366599a 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1037,7 +1037,7 @@ static void emac_rx_handler(void *token, int len, int status) recycle: ret = cpdma_chan_submit(priv->rxchan, skb, skb->data, - skb_tailroom(skb), GFP_KERNEL); + skb_tailroom(skb), 0, GFP_KERNEL); WARN_ON(ret == -ENOMEM); if (unlikely(ret < 0)) @@ -1092,7 +1092,7 @@ static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev) skb_tx_timestamp(skb); ret_code = cpdma_chan_submit(priv->txchan, skb, skb->data, skb->len, - GFP_KERNEL); + 0, GFP_KERNEL); if (unlikely(ret_code != 0)) { if (netif_msg_tx_err(priv) && net_ratelimit()) dev_err(emac_dev, "DaVinci EMAC: desc submit failed"); @@ -1558,7 +1558,7 @@ static int emac_dev_open(struct net_device *ndev) break; ret = cpdma_chan_submit(priv->rxchan, skb, skb->data, - skb_tailroom(skb), GFP_KERNEL); + skb_tailroom(skb), 0, GFP_KERNEL); if (WARN_ON(ret < 0)) break; } |