diff options
| author | Fugang Duan <B38611@freescale.com> | 2014-09-12 21:00:49 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-13 21:32:16 (GMT) |
| commit | 9fc095f136b5436fafb22f31c4871b5edcb362b9 (patch) | |
| tree | 5306b6cd63c26d70707fc8a300d96c353e8eec41 | |
| parent | 4d494cdc92b3b9a0f5fb9e1560810fa27d5a0489 (diff) | |
| download | linux-9fc095f136b5436fafb22f31c4871b5edcb362b9.tar.xz | |
net: fec: parser max queue number from dt file
By default, the tx/rx queue number is 1, user can config the queue number
at DTS file like this:
fsl,num-tx-queues=<3>;
fsl,num-rx-queues=<3>
Since i.MX6SX enet-AVB IP support multi queues, so use multi queues
interface to allocate and set up an Ethernet device.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 46 |
2 files changed, 47 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index b2b91f8..72fb90f 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -356,6 +356,8 @@ struct fec_enet_private { bool ptp_clk_on; struct mutex ptp_clk_mutex; + unsigned int num_tx_queues; + unsigned int num_rx_queues; /* The saved address of a sent-in-place packet/buffer, for skfree(). */ struct fec_enet_priv_tx_q *tx_queue[FEC_ENET_MAX_TX_QS]; diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 4c0d2ee..2240df0 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -2709,6 +2709,42 @@ static void fec_reset_phy(struct platform_device *pdev) } #endif /* CONFIG_OF */ +static void +fec_enet_get_queue_num(struct platform_device *pdev, int *num_tx, int *num_rx) +{ + struct device_node *np = pdev->dev.of_node; + int err; + + *num_tx = *num_rx = 1; + + if (!np || !of_device_is_available(np)) + return; + + /* parse the num of tx and rx queues */ + err = of_property_read_u32(np, "fsl,num-tx-queues", num_tx); + err |= of_property_read_u32(np, "fsl,num-rx-queues", num_rx); + if (err) { + *num_tx = 1; + *num_rx = 1; + return; + } + + if (*num_tx < 1 || *num_tx > FEC_ENET_MAX_TX_QS) { + dev_err(&pdev->dev, "Invalidate num_tx(=%d), fail back to 1\n", + *num_tx); + *num_tx = 1; + return; + } + + if (*num_rx < 1 || *num_rx > FEC_ENET_MAX_RX_QS) { + dev_err(&pdev->dev, "Invalidate num_rx(=%d), fail back to 1\n", + *num_rx); + *num_rx = 1; + return; + } + +} + static int fec_probe(struct platform_device *pdev) { @@ -2720,13 +2756,18 @@ fec_probe(struct platform_device *pdev) const struct of_device_id *of_id; static int dev_id; struct device_node *np = pdev->dev.of_node, *phy_node; + int num_tx_qs = 1; + int num_rx_qs = 1; of_id = of_match_device(fec_dt_ids, &pdev->dev); if (of_id) pdev->id_entry = of_id->data; + fec_enet_get_queue_num(pdev, &num_tx_qs, &num_rx_qs); + /* Init network device */ - ndev = alloc_etherdev(sizeof(struct fec_enet_private)); + ndev = alloc_etherdev_mqs(sizeof(struct fec_enet_private), + num_tx_qs, num_rx_qs); if (!ndev) return -ENOMEM; @@ -2735,6 +2776,9 @@ fec_probe(struct platform_device *pdev) /* setup board info structure */ fep = netdev_priv(ndev); + fep->num_rx_queues = num_rx_qs; + fep->num_tx_queues = num_tx_qs; + #if !defined(CONFIG_M5272) /* default enable pause frame auto negotiation */ if (pdev->id_entry && |