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path: root/drivers/net/gianfar.c
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Diffstat (limited to 'drivers/net/gianfar.c')
-rw-r--r--drivers/net/gianfar.c80
1 files changed, 46 insertions, 34 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 4c4cc80ec0a..ff60b23a5b7 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -95,6 +95,7 @@
#include <linux/phy.h>
#include <linux/phy_fixed.h>
#include <linux/of.h>
+#include <linux/of_net.h>
#include "gianfar.h"
#include "fsl_pq_mdio.h"
@@ -122,8 +123,7 @@ static irqreturn_t gfar_interrupt(int irq, void *dev_id);
static void adjust_link(struct net_device *dev);
static void init_registers(struct net_device *dev);
static int init_phy(struct net_device *dev);
-static int gfar_probe(struct platform_device *ofdev,
- const struct of_device_id *match);
+static int gfar_probe(struct platform_device *ofdev);
static int gfar_remove(struct platform_device *ofdev);
static void free_skb_resources(struct gfar_private *priv);
static void gfar_set_multi(struct net_device *dev);
@@ -143,7 +143,8 @@ void gfar_halt(struct net_device *dev);
static void gfar_halt_nodisable(struct net_device *dev);
void gfar_start(struct net_device *dev);
static void gfar_clear_exact_match(struct net_device *dev);
-static void gfar_set_mac_for_addr(struct net_device *dev, int num, u8 *addr);
+static void gfar_set_mac_for_addr(struct net_device *dev, int num,
+ const u8 *addr);
static int gfar_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
MODULE_AUTHOR("Freescale Semiconductor, Inc");
@@ -364,7 +365,7 @@ static void gfar_init_mac(struct net_device *ndev)
gfar_write(&regs->rir0, DEFAULT_RIR0);
}
- if (priv->rx_csum_enable)
+ if (ndev->features & NETIF_F_RXCSUM)
rctrl |= RCTRL_CHECKSUMMING;
if (priv->extended_hash) {
@@ -432,7 +433,6 @@ static void gfar_init_mac(struct net_device *ndev)
static struct net_device_stats *gfar_get_stats(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
- struct netdev_queue *txq;
unsigned long rx_packets = 0, rx_bytes = 0, rx_dropped = 0;
unsigned long tx_packets = 0, tx_bytes = 0;
int i = 0;
@@ -448,9 +448,8 @@ static struct net_device_stats *gfar_get_stats(struct net_device *dev)
dev->stats.rx_dropped = rx_dropped;
for (i = 0; i < priv->num_tx_queues; i++) {
- txq = netdev_get_tx_queue(dev, i);
- tx_bytes += txq->tx_bytes;
- tx_packets += txq->tx_packets;
+ tx_bytes += priv->tx_queue[i]->stats.tx_bytes;
+ tx_packets += priv->tx_queue[i]->stats.tx_packets;
}
dev->stats.tx_bytes = tx_bytes;
@@ -464,6 +463,7 @@ static const struct net_device_ops gfar_netdev_ops = {
.ndo_start_xmit = gfar_start_xmit,
.ndo_stop = gfar_close,
.ndo_change_mtu = gfar_change_mtu,
+ .ndo_set_features = gfar_set_features,
.ndo_set_multicast_list = gfar_set_multi,
.ndo_tx_timeout = gfar_timeout,
.ndo_do_ioctl = gfar_ioctl,
@@ -514,7 +514,7 @@ void unlock_tx_qs(struct gfar_private *priv)
/* Returns 1 if incoming frames use an FCB */
static inline int gfar_uses_fcb(struct gfar_private *priv)
{
- return priv->vlgrp || priv->rx_csum_enable ||
+ return priv->vlgrp || (priv->ndev->features & NETIF_F_RXCSUM) ||
(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER);
}
@@ -577,11 +577,10 @@ static int gfar_parse_group(struct device_node *np,
irq_of_parse_and_map(np, 1);
priv->gfargrp[priv->num_grps].interruptError =
irq_of_parse_and_map(np,2);
- if (priv->gfargrp[priv->num_grps].interruptTransmit < 0 ||
- priv->gfargrp[priv->num_grps].interruptReceive < 0 ||
- priv->gfargrp[priv->num_grps].interruptError < 0) {
+ if (priv->gfargrp[priv->num_grps].interruptTransmit == NO_IRQ ||
+ priv->gfargrp[priv->num_grps].interruptReceive == NO_IRQ ||
+ priv->gfargrp[priv->num_grps].interruptError == NO_IRQ)
return -EINVAL;
- }
}
priv->gfargrp[priv->num_grps].grp_id = priv->num_grps;
@@ -951,6 +950,11 @@ static void gfar_detect_errata(struct gfar_private *priv)
(pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
priv->errata |= GFAR_ERRATA_A002;
+ /* MPC8313 Rev < 2.0, MPC8548 rev 2.0 */
+ if ((pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020) ||
+ (pvr == 0x80210020 && mod == 0x8030 && rev == 0x0020))
+ priv->errata |= GFAR_ERRATA_12;
+
if (priv->errata)
dev_info(dev, "enabled errata workarounds, flags: 0x%x\n",
priv->errata);
@@ -958,8 +962,7 @@ static void gfar_detect_errata(struct gfar_private *priv)
/* Set up the ethernet device structure, private data,
* and anything else we need before we start */
-static int gfar_probe(struct platform_device *ofdev,
- const struct of_device_id *match)
+static int gfar_probe(struct platform_device *ofdev)
{
u32 tempval;
struct net_device *dev = NULL;
@@ -1028,10 +1031,11 @@ static int gfar_probe(struct platform_device *ofdev,
netif_napi_add(dev, &priv->gfargrp[i].napi, gfar_poll, GFAR_DEV_WEIGHT);
if (priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM) {
- priv->rx_csum_enable = 1;
- dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_HIGHDMA;
- } else
- priv->rx_csum_enable = 0;
+ dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
+ NETIF_F_RXCSUM;
+ dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG |
+ NETIF_F_RXCSUM | NETIF_F_HIGHDMA;
+ }
priv->vlgrp = NULL;
@@ -1921,7 +1925,7 @@ int startup_gfar(struct net_device *ndev)
if (err) {
for (j = 0; j < i; j++)
free_grp_irqs(&priv->gfargrp[j]);
- goto irq_fail;
+ goto irq_fail;
}
}
@@ -2108,8 +2112,8 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
/* Update transmit stats */
- txq->tx_bytes += skb->len;
- txq->tx_packets ++;
+ tx_queue->stats.tx_bytes += skb->len;
+ tx_queue->stats.tx_packets++;
txbdp = txbdp_start = tx_queue->cur_tx;
lstatus = txbdp->lstatus;
@@ -2157,8 +2161,15 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Set up checksumming */
if (CHECKSUM_PARTIAL == skb->ip_summed) {
fcb = gfar_add_fcb(skb);
- lstatus |= BD_LFLAG(TXBD_TOE);
- gfar_tx_checksum(skb, fcb);
+ /* as specified by errata */
+ if (unlikely(gfar_has_errata(priv, GFAR_ERRATA_12)
+ && ((unsigned long)fcb % 0x20) > 0x18)) {
+ __skb_pull(skb, GMAC_FCB_LEN);
+ skb_checksum_help(skb);
+ } else {
+ lstatus |= BD_LFLAG(TXBD_TOE);
+ gfar_tx_checksum(skb, fcb);
+ }
}
if (vlan_tx_tag_present(skb)) {
@@ -2511,7 +2522,7 @@ static int gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue)
skb_recycle_check(skb, priv->rx_buffer_size +
RXBUF_ALIGNMENT)) {
gfar_align_skb(skb);
- __skb_queue_head(&priv->rx_recycle, skb);
+ skb_queue_head(&priv->rx_recycle, skb);
} else
dev_kfree_skb_any(skb);
@@ -2594,7 +2605,7 @@ struct sk_buff * gfar_new_skb(struct net_device *dev)
struct gfar_private *priv = netdev_priv(dev);
struct sk_buff *skb = NULL;
- skb = __skb_dequeue(&priv->rx_recycle);
+ skb = skb_dequeue(&priv->rx_recycle);
if (!skb)
skb = gfar_alloc_skb(dev);
@@ -2688,7 +2699,7 @@ static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
if (priv->padding)
skb_pull(skb, priv->padding);
- if (priv->rx_csum_enable)
+ if (dev->features & NETIF_F_RXCSUM)
gfar_rx_checksum(skb, fcb);
/* Tell the skb what kind of packet this is */
@@ -2750,7 +2761,7 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit)
if (unlikely(!newskb))
newskb = skb;
else if (skb)
- __skb_queue_head(&priv->rx_recycle, skb);
+ skb_queue_head(&priv->rx_recycle, skb);
} else {
/* Increment the number of packets */
rx_queue->stats.rx_packets++;
@@ -3095,10 +3106,10 @@ static void gfar_set_multi(struct net_device *dev)
static void gfar_clear_exact_match(struct net_device *dev)
{
int idx;
- u8 zero_arr[MAC_ADDR_LEN] = {0,0,0,0,0,0};
+ static const u8 zero_arr[MAC_ADDR_LEN] = {0, 0, 0, 0, 0, 0};
for(idx = 1;idx < GFAR_EM_NUM + 1;idx++)
- gfar_set_mac_for_addr(dev, idx, (u8 *)zero_arr);
+ gfar_set_mac_for_addr(dev, idx, zero_arr);
}
/* Set the appropriate hash bit for the given addr */
@@ -3133,7 +3144,8 @@ static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr)
/* There are multiple MAC Address register pairs on some controllers
* This function sets the numth pair to a given address
*/
-static void gfar_set_mac_for_addr(struct net_device *dev, int num, u8 *addr)
+static void gfar_set_mac_for_addr(struct net_device *dev, int num,
+ const u8 *addr)
{
struct gfar_private *priv = netdev_priv(dev);
struct gfar __iomem *regs = priv->gfargrp[0].regs;
@@ -3256,7 +3268,7 @@ static struct of_device_id gfar_match[] =
MODULE_DEVICE_TABLE(of, gfar_match);
/* Structure for a device driver */
-static struct of_platform_driver gfar_driver = {
+static struct platform_driver gfar_driver = {
.driver = {
.name = "fsl-gianfar",
.owner = THIS_MODULE,
@@ -3269,12 +3281,12 @@ static struct of_platform_driver gfar_driver = {
static int __init gfar_init(void)
{
- return of_register_platform_driver(&gfar_driver);
+ return platform_driver_register(&gfar_driver);
}
static void __exit gfar_exit(void)
{
- of_unregister_platform_driver(&gfar_driver);
+ platform_driver_unregister(&gfar_driver);
}
module_init(gfar_init);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-04-16 09:48:17 +0000