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path: root/drivers/net/ethernet/amd/xgbe/xgbe-main.c
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Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-main.c')
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-main.c86
1 files changed, 23 insertions, 63 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index f5a8fa0..dbd3850 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -133,60 +133,6 @@ MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(XGBE_DRV_VERSION);
MODULE_DESCRIPTION(XGBE_DRV_DESC);
-static struct xgbe_channel *xgbe_alloc_rings(struct xgbe_prv_data *pdata)
-{
- struct xgbe_channel *channel_mem, *channel;
- struct xgbe_ring *tx_ring, *rx_ring;
- unsigned int count, i;
-
- DBGPR("-->xgbe_alloc_rings\n");
-
- count = max_t(unsigned int, pdata->tx_ring_count, pdata->rx_ring_count);
-
- channel_mem = devm_kcalloc(pdata->dev, count,
- sizeof(struct xgbe_channel), GFP_KERNEL);
- if (!channel_mem)
- return NULL;
-
- tx_ring = devm_kcalloc(pdata->dev, pdata->tx_ring_count,
- sizeof(struct xgbe_ring), GFP_KERNEL);
- if (!tx_ring)
- return NULL;
-
- rx_ring = devm_kcalloc(pdata->dev, pdata->rx_ring_count,
- sizeof(struct xgbe_ring), GFP_KERNEL);
- if (!rx_ring)
- return NULL;
-
- for (i = 0, channel = channel_mem; i < count; i++, channel++) {
- snprintf(channel->name, sizeof(channel->name), "channel-%d", i);
- channel->pdata = pdata;
- channel->queue_index = i;
- channel->dma_regs = pdata->xgmac_regs + DMA_CH_BASE +
- (DMA_CH_INC * i);
-
- if (i < pdata->tx_ring_count) {
- spin_lock_init(&tx_ring->lock);
- channel->tx_ring = tx_ring++;
- }
-
- if (i < pdata->rx_ring_count) {
- spin_lock_init(&rx_ring->lock);
- channel->rx_ring = rx_ring++;
- }
-
- DBGPR(" %s - queue_index=%u, dma_regs=%p, tx=%p, rx=%p\n",
- channel->name, channel->queue_index, channel->dma_regs,
- channel->tx_ring, channel->rx_ring);
- }
-
- pdata->channel_count = count;
-
- DBGPR("<--xgbe_alloc_rings\n");
-
- return channel_mem;
-}
-
static void xgbe_default_config(struct xgbe_prv_data *pdata)
{
DBGPR("-->xgbe_default_config\n");
@@ -224,6 +170,7 @@ static int xgbe_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct resource *res;
const u8 *mac_addr;
+ unsigned int i;
int ret;
DBGPR("--> xgbe_probe\n");
@@ -244,6 +191,7 @@ static int xgbe_probe(struct platform_device *pdev)
spin_lock_init(&pdata->lock);
mutex_init(&pdata->xpcs_mutex);
+ mutex_init(&pdata->rss_mutex);
spin_lock_init(&pdata->tstamp_lock);
/* Set and validate the number of descriptors for a ring */
@@ -318,12 +266,18 @@ static int xgbe_probe(struct platform_device *pdev)
pdata->awcache = XGBE_DMA_SYS_AWCACHE;
}
+ /* Check for per channel interrupt support */
+ if (of_property_read_bool(dev->of_node, XGBE_DMA_IRQS))
+ pdata->per_channel_irq = 1;
+
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
- dev_err(dev, "platform_get_irq failed\n");
+ dev_err(dev, "platform_get_irq 0 failed\n");
goto err_io;
}
- netdev->irq = ret;
+ pdata->dev_irq = ret;
+
+ netdev->irq = pdata->dev_irq;
netdev->base_addr = (unsigned long)pdata->xgmac_regs;
/* Set all the function pointers */
@@ -383,13 +337,16 @@ static int xgbe_probe(struct platform_device *pdev)
goto err_io;
}
- /* Allocate the rings for the DMA channels */
- pdata->channel = xgbe_alloc_rings(pdata);
- if (!pdata->channel) {
- dev_err(dev, "ring allocation failed\n");
- ret = -ENOMEM;
- goto err_io;
- }
+ /* Initialize RSS hash key and lookup table */
+ netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key));
+
+ for (i = 0; i < XGBE_RSS_MAX_TABLE_SIZE; i++)
+ XGMAC_SET_BITS(pdata->rss_table[i], MAC_RSSDR, DMCH,
+ i % pdata->rx_ring_count);
+
+ XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
+ XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
+ XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
/* Prepare to regsiter with MDIO */
pdata->mii_bus_id = kasprintf(GFP_KERNEL, "%s", pdev->name);
@@ -421,6 +378,9 @@ static int xgbe_probe(struct platform_device *pdev)
NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_FILTER;
+ if (pdata->hw_feat.rss)
+ netdev->hw_features |= NETIF_F_RXHASH;
+
netdev->vlan_features |= NETIF_F_SG |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
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