Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge net into net-next to setup some infrastructure Eric Dumazet needs for usbnet changes. Signed-off-by: David S. Miller <davem@davemloft.net>
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@@ -93,6 +93,20 @@ static void set_multicast_list(struct net_device *ndev);
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#define FEC_QUIRK_HAS_CSUM (1 << 5)
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/* Controller has hardware vlan support */
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#define FEC_QUIRK_HAS_VLAN (1 << 6)
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/* ENET IP errata ERR006358
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*
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* If the ready bit in the transmit buffer descriptor (TxBD[R]) is previously
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* detected as not set during a prior frame transmission, then the
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* ENET_TDAR[TDAR] bit is cleared at a later time, even if additional TxBDs
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* were added to the ring and the ENET_TDAR[TDAR] bit is set. This results in
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* If the ready bit in the transmit buffer descriptor (TxBD[R]) is previously
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* detected as not set during a prior frame transmission, then the
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* ENET_TDAR[TDAR] bit is cleared at a later time, even if additional TxBDs
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* were added to the ring and the ENET_TDAR[TDAR] bit is set. This results in
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* frames not being transmitted until there is a 0-to-1 transition on
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* ENET_TDAR[TDAR].
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*/
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#define FEC_QUIRK_ERR006358 (1 << 7)
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static struct platform_device_id fec_devtype[] = {
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{
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@@ -112,7 +126,7 @@ static struct platform_device_id fec_devtype[] = {
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.name = "imx6q-fec",
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.driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT |
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FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
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FEC_QUIRK_HAS_VLAN,
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FEC_QUIRK_HAS_VLAN | FEC_QUIRK_ERR006358,
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}, {
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.name = "mvf600-fec",
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.driver_data = FEC_QUIRK_ENET_MAC,
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@@ -275,16 +289,11 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
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struct fec_enet_private *fep = netdev_priv(ndev);
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const struct platform_device_id *id_entry =
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platform_get_device_id(fep->pdev);
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struct bufdesc *bdp;
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struct bufdesc *bdp, *bdp_pre;
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void *bufaddr;
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unsigned short status;
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unsigned int index;
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if (!fep->link) {
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/* Link is down or auto-negotiation is in progress. */
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return NETDEV_TX_BUSY;
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}
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/* Fill in a Tx ring entry */
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bdp = fep->cur_tx;
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@@ -370,6 +379,15 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
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ebdp->cbd_esc |= BD_ENET_TX_PINS;
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}
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}
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bdp_pre = fec_enet_get_prevdesc(bdp, fep->bufdesc_ex);
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if ((id_entry->driver_data & FEC_QUIRK_ERR006358) &&
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!(bdp_pre->cbd_sc & BD_ENET_TX_READY)) {
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fep->delay_work.trig_tx = true;
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schedule_delayed_work(&(fep->delay_work.delay_work),
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msecs_to_jiffies(1));
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}
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/* If this was the last BD in the ring, start at the beginning again. */
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if (status & BD_ENET_TX_WRAP)
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bdp = fep->tx_bd_base;
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@@ -689,6 +707,11 @@ static void fec_enet_work(struct work_struct *work)
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fec_restart(fep->netdev, fep->full_duplex);
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netif_wake_queue(fep->netdev);
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}
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if (fep->delay_work.trig_tx) {
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fep->delay_work.trig_tx = false;
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writel(0, fep->hwp + FEC_X_DES_ACTIVE);
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}
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}
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static void
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@@ -2315,4 +2338,5 @@ static struct platform_driver fec_driver = {
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module_platform_driver(fec_driver);
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MODULE_ALIAS("platform:"DRIVER_NAME);
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MODULE_LICENSE("GPL");
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