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dpaa2-eth: Use FQ-based DPIO enqueue API 

Starting with MC10.14.0, dpaa2_io_service_enqueue_fq() API is
functional. Since there are a number of cases where it offers
better performance compared to the currently used enqueue
function, switch to it for firmware versions that support it.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ioana Ciocoi Radulescu 2019-02-04 17:00:36 +00:00 committed by David S. Miller
parent 0723a3aec0
commit 1fa0f68c92
2 changed files with 39 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
View File

@ -264,9 +264,7 @@ static int xdp_enqueue(struct dpaa2_eth_priv *priv, struct dpaa2_fd *fd,
fq = &priv->fq[queue_id];
for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) {
err = dpaa2_io_service_enqueue_qd(fq->channel->dpio,
priv->tx_qdid, 0,
fq->tx_qdbin, fd);
err = priv->enqueue(priv, fq, fd, 0);
if (err != -EBUSY)
break;
}
@ -785,9 +783,7 @@ static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev)
queue_mapping = skb_get_queue_mapping(skb);
fq = &priv->fq[queue_mapping];
for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) {
err = dpaa2_io_service_enqueue_qd(fq->channel->dpio,
priv->tx_qdid, 0,
fq->tx_qdbin, &fd);
err = priv->enqueue(priv, fq, &fd, 0);
if (err != -EBUSY)
break;
}
@ -2205,6 +2201,36 @@ static int set_buffer_layout(struct dpaa2_eth_priv *priv)
return 0;
}
#define DPNI_ENQUEUE_FQID_VER_MAJOR 7
#define DPNI_ENQUEUE_FQID_VER_MINOR 9
static inline int dpaa2_eth_enqueue_qd(struct dpaa2_eth_priv *priv,
struct dpaa2_eth_fq *fq,
struct dpaa2_fd *fd, u8 prio)
{
return dpaa2_io_service_enqueue_qd(fq->channel->dpio,
priv->tx_qdid, prio,
fq->tx_qdbin, fd);
}
static inline int dpaa2_eth_enqueue_fq(struct dpaa2_eth_priv *priv,
struct dpaa2_eth_fq *fq,
struct dpaa2_fd *fd,
u8 prio __always_unused)
{
return dpaa2_io_service_enqueue_fq(fq->channel->dpio,
fq->tx_fqid, fd);
}
static void set_enqueue_mode(struct dpaa2_eth_priv *priv)
{
if (dpaa2_eth_cmp_dpni_ver(priv, DPNI_ENQUEUE_FQID_VER_MAJOR,
DPNI_ENQUEUE_FQID_VER_MINOR) < 0)
priv->enqueue = dpaa2_eth_enqueue_qd;
else
priv->enqueue = dpaa2_eth_enqueue_fq;
}
/* Configure the DPNI object this interface is associated with */
static int setup_dpni(struct fsl_mc_device *ls_dev)
{
@ -2258,6 +2284,8 @@ static int setup_dpni(struct fsl_mc_device *ls_dev)
if (err)
goto close;
set_enqueue_mode(priv);
priv->cls_rules = devm_kzalloc(dev, sizeof(struct dpaa2_eth_cls_rule) *
dpaa2_eth_fs_count(priv), GFP_KERNEL);
if (!priv->cls_rules)
@ -2342,6 +2370,7 @@ static int setup_tx_flow(struct dpaa2_eth_priv *priv,
}
fq->tx_qdbin = qid.qdbin;
fq->tx_fqid = qid.fqid;
err = dpni_get_queue(priv->mc_io, 0, priv->mc_token,
DPNI_QUEUE_TX_CONFIRM, 0, fq->flowid,

4
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
View File

@ -276,6 +276,7 @@ struct dpaa2_eth_priv;
struct dpaa2_eth_fq {
u32 fqid;
u32 tx_qdbin;
u32 tx_fqid;
u16 flowid;
int target_cpu;
u32 dq_frames;
@ -328,6 +329,9 @@ struct dpaa2_eth_priv {
u8 num_fqs;
struct dpaa2_eth_fq fq[DPAA2_ETH_MAX_QUEUES];
int (*enqueue)(struct dpaa2_eth_priv *priv,
struct dpaa2_eth_fq *fq,
struct dpaa2_fd *fd, u8 prio);
u8 num_channels;
struct dpaa2_eth_channel *channel[DPAA2_ETH_MAX_DPCONS];