[U-Boot] [PATCH 13/14][v2] driver/ldpaa_eth: Avoid TX conf frames
Prabhakar Kushwaha
prabhakar at freescale.com
Thu Jun 11 11:03:07 CEST 2015
Polling of TX conf frames is not a mandatory option.
Packets can be transferred via WRIOP without TX conf frame.
Configure ldpaa_eth driver to use TX path without confirmation frame
Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
---
Changes for v2: Sending as it is for patchset
drivers/net/ldpaa_eth/ldpaa_eth.c | 114 ++------------------------------------
drivers/net/ldpaa_eth/ldpaa_eth.h | 1 -
2 files changed, 4 insertions(+), 111 deletions(-)
diff --git a/drivers/net/ldpaa_eth/ldpaa_eth.c b/drivers/net/ldpaa_eth/ldpaa_eth.c
index adb964c..839e78a 100644
--- a/drivers/net/ldpaa_eth/ldpaa_eth.c
+++ b/drivers/net/ldpaa_eth/ldpaa_eth.c
@@ -112,7 +112,7 @@ static int ldpaa_eth_pull_dequeue_rx(struct eth_device *dev)
debug("No frame delivered\n");
qbman_swp_dqrr_consume(swp, dq);
- break;
+ continue;
}
fd = ldpaa_dq_fd(dq);
@@ -131,98 +131,6 @@ static int ldpaa_eth_pull_dequeue_rx(struct eth_device *dev)
return err;
}
-static void ldpaa_eth_tx_conf(struct ldpaa_eth_priv *priv,
- const struct dpaa_fd *fd)
-{
- uint64_t fd_addr;
- struct ldpaa_fas *fas;
- uint32_t status, err;
- struct qbman_release_desc releasedesc;
- struct qbman_swp *swp = dflt_dpio->sw_portal;
-
- fd_addr = ldpaa_fd_get_addr(fd);
-
-
- debug("TX Conf frame:data addr=0x%p\n", (u64 *)fd_addr);
-
- /* Check the status from the Frame Annotation */
- if (fd->simple.frc & LDPAA_FD_FRC_FASV) {
- fas = (struct ldpaa_fas *)
- ((uint8_t *)(fd_addr) +
- priv->buf_layout.private_data_size);
- status = le32_to_cpu(fas->status);
- if (status & LDPAA_ETH_TXCONF_ERR_MASK) {
- printf("TxConf frame error(s): 0x%08x\n",
- status & LDPAA_ETH_TXCONF_ERR_MASK);
- }
- }
-
- flush_dcache_range(fd_addr, fd_addr + LDPAA_ETH_RX_BUFFER_SIZE);
- qbman_release_desc_clear(&releasedesc);
- qbman_release_desc_set_bpid(&releasedesc, dflt_dpbp->dpbp_attr.bpid);
- do {
- /* Release buffer into the QBMAN */
- err = qbman_swp_release(swp, &releasedesc, &fd_addr, 1);
- } while (err == -EBUSY);
-}
-
-static int ldpaa_eth_pull_dequeue_tx_conf(struct ldpaa_eth_priv *priv)
-{
- const struct ldpaa_dq *dq;
- const struct dpaa_fd *fd;
- int err = 0;
- int i = 5, status;
- u32 timeo = (CONFIG_SYS_HZ * 10) / 1000;
- u32 time_start;
- static struct qbman_pull_desc pulldesc;
- struct qbman_swp *swp = dflt_dpio->sw_portal;
-
- while (--i) {
- qbman_pull_desc_clear(&pulldesc);
- qbman_pull_desc_set_numframes(&pulldesc, 1);
- qbman_pull_desc_set_fq(&pulldesc, priv->tx_conf_fqid);
-
- err = qbman_swp_pull(swp, &pulldesc);
- if (err < 0) {
- printf("Dequeue TX conf frames error:0x%08x\n", err);
- continue;
- }
-
- time_start = get_timer(0);
-
- do {
- dq = qbman_swp_dqrr_next(swp);
- } while (get_timer(time_start) < timeo && !dq);
-
- if (dq) {
- /* Check for valid frame. If not sent a consume
- * confirmation to QBMAN otherwise give it to NADK
- * application and then send consume confirmation to
- * QBMAN.
- */
- status = (uint8_t)ldpaa_dq_flags(dq);
- if ((status & LDPAA_DQ_STAT_VALIDFRAME) == 0) {
- debug("Dequeue TX conf frames:");
- debug("No frame is delivered\n");
-
- qbman_swp_dqrr_consume(swp, dq);
- break;
- }
- fd = ldpaa_dq_fd(dq);
-
- ldpaa_eth_tx_conf(priv, fd);
- qbman_swp_dqrr_consume(swp, dq);
- break;
- } else {
- err = -1;
- debug("No DQRR entries\n");
- break;
- }
- }
-
- return err;
-}
-
static int ldpaa_eth_tx(struct eth_device *net_dev, void *buf, int len)
{
struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)net_dev->priv;
@@ -282,12 +190,6 @@ static int ldpaa_eth_tx(struct eth_device *net_dev, void *buf, int len)
if (err < 0)
goto error;
- mdelay(1);
-
- err = ldpaa_eth_pull_dequeue_tx_conf(priv);
- if (err < 0)
- printf("error Tx Conf frame\n");
-
return err;
error:
@@ -305,7 +207,6 @@ static int ldpaa_eth_open(struct eth_device *net_dev, bd_t *bd)
{
struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)net_dev->priv;
struct dpni_queue_attr rx_queue_attr;
- struct dpni_tx_flow_attr tx_flow_attr;
uint8_t mac_addr[6];
int err;
@@ -376,21 +277,11 @@ static int ldpaa_eth_open(struct eth_device *net_dev, bd_t *bd)
goto err_qdid;
}
- err = dpni_get_tx_flow(dflt_mc_io, priv->dpni_handle, priv->tx_flow_id,
- &tx_flow_attr);
- if (err) {
- printf("dpni_get_tx_flow() failed\n");
- goto err_tx_flow;
- }
-
- priv->tx_conf_fqid = tx_flow_attr.conf_err_attr.queue_attr.fqid;
-
if (!priv->phydev->link)
printf("%s: No link.\n", priv->phydev->dev->name);
return priv->phydev->link ? 0 : -1;
-err_tx_flow:
err_qdid:
err_rx_flow:
dpni_disable(dflt_mc_io, priv->dpni_handle);
@@ -657,6 +548,9 @@ static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv)
priv->tx_flow_id = DPNI_NEW_FLOW_ID;
memset(&dflt_tx_flow, 0, sizeof(dflt_tx_flow));
+ dflt_tx_flow.options = DPNI_TX_FLOW_OPT_ONLY_TX_ERROR;
+ dflt_tx_flow.conf_err_cfg.use_default_queue = 0;
+ dflt_tx_flow.conf_err_cfg.errors_only = 1;
err = dpni_set_tx_flow(dflt_mc_io, priv->dpni_handle,
&priv->tx_flow_id, &dflt_tx_flow);
if (err) {
diff --git a/drivers/net/ldpaa_eth/ldpaa_eth.h b/drivers/net/ldpaa_eth/ldpaa_eth.h
index 3107ab6..b4ef700 100644
--- a/drivers/net/ldpaa_eth/ldpaa_eth.h
+++ b/drivers/net/ldpaa_eth/ldpaa_eth.h
@@ -128,7 +128,6 @@ struct ldpaa_eth_priv {
uint32_t rx_dflt_fqid;
uint16_t tx_qdid;
- uint32_t tx_conf_fqid;
uint16_t tx_flow_id;
enum ldpaa_eth_type type; /* 1G or 10G ethernet */
--
1.9.1
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