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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 09:00:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 09:00:47 -0700
commit6c373ca89399c5a3f7ef210ad8f63dc3437da345 (patch)
tree74d1ec65087df1da1021b43ac51acc1ee8601809 /drivers/net/ethernet/broadcom/genet/bcmgenet.c
parentbb0fd7ab0986105765d11baa82e619c618a235aa (diff)
parent9f9151412dd7aae0e3f51a89ae4a1f8755fdb4d0 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: 1) Add BQL support to via-rhine, from Tino Reichardt. 2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers can support hw switch offloading. From Floria Fainelli. 3) Allow 'ip address' commands to initiate multicast group join/leave, from Madhu Challa. 4) Many ipv4 FIB lookup optimizations from Alexander Duyck. 5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel Borkmann. 6) Remove the ugly compat support in ARP for ugly layers like ax25, rose, etc. And use this to clean up the neigh layer, then use it to implement MPLS support. All from Eric Biederman. 7) Support L3 forwarding offloading in switches, from Scott Feldman. 8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed up route lookups even further. From Alexander Duyck. 9) Many improvements and bug fixes to the rhashtable implementation, from Herbert Xu and Thomas Graf. In particular, in the case where an rhashtable user bulk adds a large number of items into an empty table, we expand the table much more sanely. 10) Don't make the tcp_metrics hash table per-namespace, from Eric Biederman. 11) Extend EBPF to access SKB fields, from Alexei Starovoitov. 12) Split out new connection request sockets so that they can be established in the main hash table. Much less false sharing since hash lookups go direct to the request sockets instead of having to go first to the listener then to the request socks hashed underneath. From Eric Dumazet. 13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk. 14) Support stable privacy address generation for RFC7217 in IPV6. From Hannes Frederic Sowa. 15) Hash network namespace into IP frag IDs, also from Hannes Frederic Sowa. 16) Convert PTP get/set methods to use 64-bit time, from Richard Cochran. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits) fm10k: Bump driver version to 0.15.2 fm10k: corrected VF multicast update fm10k: mbx_update_max_size does not drop all oversized messages fm10k: reset head instead of calling update_max_size fm10k: renamed mbx_tx_dropped to mbx_tx_oversized fm10k: update xcast mode before synchronizing multicast addresses fm10k: start service timer on probe fm10k: fix function header comment fm10k: comment next_vf_mbx flow fm10k: don't handle mailbox events in iov_event path and always process mailbox fm10k: use separate workqueue for fm10k driver fm10k: Set PF queues to unlimited bandwidth during virtualization fm10k: expose tx_timeout_count as an ethtool stat fm10k: only increment tx_timeout_count in Tx hang path fm10k: remove extraneous "Reset interface" message fm10k: separate PF only stats so that VF does not display them fm10k: use hw->mac.max_queues for stats fm10k: only show actual queues, not the maximum in hardware fm10k: allow creation of VLAN on default vid fm10k: fix unused warnings ...
Diffstat (limited to 'drivers/net/ethernet/broadcom/genet/bcmgenet.c')
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmgenet.c1106
1 files changed, 754 insertions, 352 deletions
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 6befde61c203..6043734ea613 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -54,8 +54,10 @@
/* Default highest priority queue for multi queue support */
#define GENET_Q0_PRIORITY 0
-#define GENET_DEFAULT_BD_CNT \
- (TOTAL_DESC - priv->hw_params->tx_queues * priv->hw_params->bds_cnt)
+#define GENET_Q16_RX_BD_CNT \
+ (TOTAL_DESC - priv->hw_params->rx_queues * priv->hw_params->rx_bds_per_q)
+#define GENET_Q16_TX_BD_CNT \
+ (TOTAL_DESC - priv->hw_params->tx_queues * priv->hw_params->tx_bds_per_q)
#define RX_BUF_LENGTH 2048
#define SKB_ALIGNMENT 32
@@ -195,6 +197,14 @@ enum dma_reg {
DMA_PRIORITY_0,
DMA_PRIORITY_1,
DMA_PRIORITY_2,
+ DMA_INDEX2RING_0,
+ DMA_INDEX2RING_1,
+ DMA_INDEX2RING_2,
+ DMA_INDEX2RING_3,
+ DMA_INDEX2RING_4,
+ DMA_INDEX2RING_5,
+ DMA_INDEX2RING_6,
+ DMA_INDEX2RING_7,
};
static const u8 bcmgenet_dma_regs_v3plus[] = {
@@ -206,6 +216,14 @@ static const u8 bcmgenet_dma_regs_v3plus[] = {
[DMA_PRIORITY_0] = 0x30,
[DMA_PRIORITY_1] = 0x34,
[DMA_PRIORITY_2] = 0x38,
+ [DMA_INDEX2RING_0] = 0x70,
+ [DMA_INDEX2RING_1] = 0x74,
+ [DMA_INDEX2RING_2] = 0x78,
+ [DMA_INDEX2RING_3] = 0x7C,
+ [DMA_INDEX2RING_4] = 0x80,
+ [DMA_INDEX2RING_5] = 0x84,
+ [DMA_INDEX2RING_6] = 0x88,
+ [DMA_INDEX2RING_7] = 0x8C,
};
static const u8 bcmgenet_dma_regs_v2[] = {
@@ -829,9 +847,10 @@ static struct ethtool_ops bcmgenet_ethtool_ops = {
};
/* Power down the unimac, based on mode. */
-static void bcmgenet_power_down(struct bcmgenet_priv *priv,
+static int bcmgenet_power_down(struct bcmgenet_priv *priv,
enum bcmgenet_power_mode mode)
{
+ int ret = 0;
u32 reg;
switch (mode) {
@@ -840,7 +859,7 @@ static void bcmgenet_power_down(struct bcmgenet_priv *priv,
break;
case GENET_POWER_WOL_MAGIC:
- bcmgenet_wol_power_down_cfg(priv, mode);
+ ret = bcmgenet_wol_power_down_cfg(priv, mode);
break;
case GENET_POWER_PASSIVE:
@@ -850,11 +869,15 @@ static void bcmgenet_power_down(struct bcmgenet_priv *priv,
reg |= (EXT_PWR_DOWN_PHY |
EXT_PWR_DOWN_DLL | EXT_PWR_DOWN_BIAS);
bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT);
+
+ bcmgenet_phy_power_set(priv->dev, false);
}
break;
default:
break;
}
+
+ return 0;
}
static void bcmgenet_power_up(struct bcmgenet_priv *priv,
@@ -923,7 +946,7 @@ static struct enet_cb *bcmgenet_get_txcb(struct bcmgenet_priv *priv,
tx_cb_ptr = ring->cbs;
tx_cb_ptr += ring->write_ptr - ring->cb_ptr;
- tx_cb_ptr->bd_addr = priv->tx_bds + ring->write_ptr * DMA_DESC_SIZE;
+
/* Advancing local write pointer */
if (ring->write_ptr == ring->end_ptr)
ring->write_ptr = ring->cb_ptr;
@@ -941,36 +964,54 @@ static void bcmgenet_free_cb(struct enet_cb *cb)
dma_unmap_addr_set(cb, dma_addr, 0);
}
-static inline void bcmgenet_tx_ring16_int_disable(struct bcmgenet_priv *priv,
- struct bcmgenet_tx_ring *ring)
+static inline void bcmgenet_rx_ring16_int_disable(struct bcmgenet_rx_ring *ring)
{
- bcmgenet_intrl2_0_writel(priv,
- UMAC_IRQ_TXDMA_BDONE | UMAC_IRQ_TXDMA_PDONE,
+ bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_RXDMA_DONE,
INTRL2_CPU_MASK_SET);
}
-static inline void bcmgenet_tx_ring16_int_enable(struct bcmgenet_priv *priv,
- struct bcmgenet_tx_ring *ring)
+static inline void bcmgenet_rx_ring16_int_enable(struct bcmgenet_rx_ring *ring)
{
- bcmgenet_intrl2_0_writel(priv,
- UMAC_IRQ_TXDMA_BDONE | UMAC_IRQ_TXDMA_PDONE,
+ bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_RXDMA_DONE,
INTRL2_CPU_MASK_CLEAR);
}
-static inline void bcmgenet_tx_ring_int_enable(struct bcmgenet_priv *priv,
- struct bcmgenet_tx_ring *ring)
+static inline void bcmgenet_rx_ring_int_disable(struct bcmgenet_rx_ring *ring)
+{
+ bcmgenet_intrl2_1_writel(ring->priv,
+ 1 << (UMAC_IRQ1_RX_INTR_SHIFT + ring->index),
+ INTRL2_CPU_MASK_SET);
+}
+
+static inline void bcmgenet_rx_ring_int_enable(struct bcmgenet_rx_ring *ring)
{
- bcmgenet_intrl2_1_writel(priv, (1 << ring->index),
+ bcmgenet_intrl2_1_writel(ring->priv,
+ 1 << (UMAC_IRQ1_RX_INTR_SHIFT + ring->index),
INTRL2_CPU_MASK_CLEAR);
- priv->int1_mask &= ~(1 << ring->index);
}
-static inline void bcmgenet_tx_ring_int_disable(struct bcmgenet_priv *priv,
- struct bcmgenet_tx_ring *ring)
+static inline void bcmgenet_tx_ring16_int_disable(struct bcmgenet_tx_ring *ring)
{
- bcmgenet_intrl2_1_writel(priv, (1 << ring->index),
+ bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_TXDMA_DONE,
+ INTRL2_CPU_MASK_SET);
+}
+
+static inline void bcmgenet_tx_ring16_int_enable(struct bcmgenet_tx_ring *ring)
+{
+ bcmgenet_intrl2_0_writel(ring->priv, UMAC_IRQ_TXDMA_DONE,
+ INTRL2_CPU_MASK_CLEAR);
+}
+
+static inline void bcmgenet_tx_ring_int_enable(struct bcmgenet_tx_ring *ring)
+{
+ bcmgenet_intrl2_1_writel(ring->priv, 1 << ring->index,
+ INTRL2_CPU_MASK_CLEAR);
+}
+
+static inline void bcmgenet_tx_ring_int_disable(struct bcmgenet_tx_ring *ring)
+{
+ bcmgenet_intrl2_1_writel(ring->priv, 1 << ring->index,
INTRL2_CPU_MASK_SET);
- priv->int1_mask |= (1 << ring->index);
}
/* Unlocked version of the reclaim routine */
@@ -978,39 +1019,32 @@ static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
struct bcmgenet_tx_ring *ring)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- int last_tx_cn, last_c_index, num_tx_bds;
struct enet_cb *tx_cb_ptr;
struct netdev_queue *txq;
unsigned int pkts_compl = 0;
- unsigned int bds_compl;
unsigned int c_index;
+ unsigned int txbds_ready;
+ unsigned int txbds_processed = 0;
/* Compute how many buffers are transmitted since last xmit call */
c_index = bcmgenet_tdma_ring_readl(priv, ring->index, TDMA_CONS_INDEX);
- txq = netdev_get_tx_queue(dev, ring->queue);
-
- last_c_index = ring->c_index;
- num_tx_bds = ring->size;
+ c_index &= DMA_C_INDEX_MASK;
- c_index &= (num_tx_bds - 1);
-
- if (c_index >= last_c_index)
- last_tx_cn = c_index - last_c_index;
+ if (likely(c_index >= ring->c_index))
+ txbds_ready = c_index - ring->c_index;
else
- last_tx_cn = num_tx_bds - last_c_index + c_index;
+ txbds_ready = (DMA_C_INDEX_MASK + 1) - ring->c_index + c_index;
netif_dbg(priv, tx_done, dev,
- "%s ring=%d index=%d last_tx_cn=%d last_index=%d\n",
- __func__, ring->index,
- c_index, last_tx_cn, last_c_index);
+ "%s ring=%d old_c_index=%u c_index=%u txbds_ready=%u\n",
+ __func__, ring->index, ring->c_index, c_index, txbds_ready);
/* Reclaim transmitted buffers */
- while (last_tx_cn-- > 0) {
- tx_cb_ptr = ring->cbs + last_c_index;
- bds_compl = 0;
+ while (txbds_processed < txbds_ready) {
+ tx_cb_ptr = &priv->tx_cbs[ring->clean_ptr];
if (tx_cb_ptr->skb) {
pkts_compl++;
- bds_compl = skb_shinfo(tx_cb_ptr->skb)->nr_frags + 1;
+ dev->stats.tx_packets++;
dev->stats.tx_bytes += tx_cb_ptr->skb->len;
dma_unmap_single(&dev->dev,
dma_unmap_addr(tx_cb_ptr, dma_addr),
@@ -1026,20 +1060,23 @@ static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
DMA_TO_DEVICE);
dma_unmap_addr_set(tx_cb_ptr, dma_addr, 0);
}
- dev->stats.tx_packets++;
- ring->free_bds += bds_compl;
- last_c_index++;
- last_c_index &= (num_tx_bds - 1);
+ txbds_processed++;
+ if (likely(ring->clean_ptr < ring->end_ptr))
+ ring->clean_ptr++;
+ else
+ ring->clean_ptr = ring->cb_ptr;
}
+ ring->free_bds += txbds_processed;
+ ring->c_index = (ring->c_index + txbds_processed) & DMA_C_INDEX_MASK;
+
if (ring->free_bds > (MAX_SKB_FRAGS + 1)) {
+ txq = netdev_get_tx_queue(dev, ring->queue);
if (netif_tx_queue_stopped(txq))
netif_tx_wake_queue(txq);
}
- ring->c_index = c_index;
-
return pkts_compl;
}
@@ -1066,7 +1103,7 @@ static int bcmgenet_tx_poll(struct napi_struct *napi, int budget)
if (work_done == 0) {
napi_complete(napi);
- ring->int_enable(ring->priv, ring);
+ ring->int_enable(ring);
return 0;
}
@@ -1132,11 +1169,6 @@ static int bcmgenet_xmit_single(struct net_device *dev,
dmadesc_set(priv, tx_cb_ptr->bd_addr, mapping, length_status);
- /* Decrement total BD count and advance our write pointer */
- ring->free_bds -= 1;
- ring->prod_index += 1;
- ring->prod_index &= DMA_P_INDEX_MASK;
-
return 0;
}
@@ -1175,11 +1207,6 @@ static int bcmgenet_xmit_frag(struct net_device *dev,
(frag->size << DMA_BUFLENGTH_SHIFT) | dma_desc_flags |
(priv->hw_params->qtag_mask << DMA_TX_QTAG_SHIFT));
-
- ring->free_bds -= 1;
- ring->prod_index += 1;
- ring->prod_index &= DMA_P_INDEX_MASK;
-
return 0;
}
@@ -1323,119 +1350,128 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
skb_tx_timestamp(skb);
- /* we kept a software copy of how much we should advance the TDMA
- * producer index, now write it down to the hardware
- */
- bcmgenet_tdma_ring_writel(priv, ring->index,
- ring->prod_index, TDMA_PROD_INDEX);
+ /* Decrement total BD count and advance our write pointer */
+ ring->free_bds -= nr_frags + 1;
+ ring->prod_index += nr_frags + 1;
+ ring->prod_index &= DMA_P_INDEX_MASK;
if (ring->free_bds <= (MAX_SKB_FRAGS + 1))
netif_tx_stop_queue(txq);
+ if (!skb->xmit_more || netif_xmit_stopped(txq))
+ /* Packets are ready, update producer index */
+ bcmgenet_tdma_ring_writel(priv, ring->index,
+ ring->prod_index, TDMA_PROD_INDEX);
out:
spin_unlock_irqrestore(&ring->lock, flags);
return ret;
}
-
-static int bcmgenet_rx_refill(struct bcmgenet_priv *priv, struct enet_cb *cb)
+static struct sk_buff *bcmgenet_rx_refill(struct bcmgenet_priv *priv,
+ struct enet_cb *cb)
{
struct device *kdev = &priv->pdev->dev;
struct sk_buff *skb;
+ struct sk_buff *rx_skb;
dma_addr_t mapping;
- int ret;
+ /* Allocate a new Rx skb */
skb = netdev_alloc_skb(priv->dev, priv->rx_buf_len + SKB_ALIGNMENT);
- if (!skb)
- return -ENOMEM;
+ if (!skb) {
+ priv->mib.alloc_rx_buff_failed++;
+ netif_err(priv, rx_err, priv->dev,
+ "%s: Rx skb allocation failed\n", __func__);
+ return NULL;
+ }
- /* a caller did not release this control block */
- WARN_ON(cb->skb != NULL);
- cb->skb = skb;
- mapping = dma_map_single(kdev, skb->data,
- priv->rx_buf_len, DMA_FROM_DEVICE);
- ret = dma_mapping_error(kdev, mapping);
- if (ret) {
+ /* DMA-map the new Rx skb */
+ mapping = dma_map_single(kdev, skb->data, priv->rx_buf_len,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(kdev, mapping)) {
priv->mib.rx_dma_failed++;
- bcmgenet_free_cb(cb);
+ dev_kfree_skb_any(skb);
netif_err(priv, rx_err, priv->dev,
- "%s DMA map failed\n", __func__);
- return ret;
+ "%s: Rx skb DMA mapping failed\n", __func__);
+ return NULL;
}
- dma_unmap_addr_set(cb, dma_addr, mapping);
- /* assign packet, prepare descriptor, and advance pointer */
-
- dmadesc_set_addr(priv, priv->rx_bd_assign_ptr, mapping);
-
- /* turn on the newly assigned BD for DMA to use */
- priv->rx_bd_assign_index++;
- priv->rx_bd_assign_index &= (priv->num_rx_bds - 1);
+ /* Grab the current Rx skb from the ring and DMA-unmap it */
+ rx_skb = cb->skb;
+ if (likely(rx_skb))
+ dma_unmap_single(kdev, dma_unmap_addr(cb, dma_addr),
+ priv->rx_buf_len, DMA_FROM_DEVICE);
- priv->rx_bd_assign_ptr = priv->rx_bds +
- (priv->rx_bd_assign_index * DMA_DESC_SIZE);
+ /* Put the new Rx skb on the ring */
+ cb->skb = skb;
+ dma_unmap_addr_set(cb, dma_addr, mapping);
+ dmadesc_set_addr(priv, cb->bd_addr, mapping);
- return 0;
+ /* Return the current Rx skb to caller */
+ return rx_skb;
}
/* bcmgenet_desc_rx - descriptor based rx process.
* this could be called from bottom half, or from NAPI polling method.
*/
-static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv,
+static unsigned int bcmgenet_desc_rx(struct bcmgenet_rx_ring *ring,
unsigned int budget)
{
+ struct bcmgenet_priv *priv = ring->priv;
struct net_device *dev = priv->dev;
struct enet_cb *cb;
struct sk_buff *skb;
u32 dma_length_status;
unsigned long dma_flag;
- int len, err;
+ int len;
unsigned int rxpktprocessed = 0, rxpkttoprocess;
unsigned int p_index;
+ unsigned int discards;
unsigned int chksum_ok = 0;
- p_index = bcmgenet_rdma_ring_readl(priv, DESC_INDEX, RDMA_PROD_INDEX);
+ p_index = bcmgenet_rdma_ring_readl(priv, ring->index, RDMA_PROD_INDEX);
+
+ discards = (p_index >> DMA_P_INDEX_DISCARD_CNT_SHIFT) &
+ DMA_P_INDEX_DISCARD_CNT_MASK;
+ if (discards > ring->old_discards) {
+ discards = discards - ring->old_discards;
+ dev->stats.rx_missed_errors += discards;
+ dev->stats.rx_errors += discards;
+ ring->old_discards += discards;
+
+ /* Clear HW register when we reach 75% of maximum 0xFFFF */
+ if (ring->old_discards >= 0xC000) {
+ ring->old_discards = 0;
+ bcmgenet_rdma_ring_writel(priv, ring->index, 0,
+ RDMA_PROD_INDEX);
+ }
+ }
+
p_index &= DMA_P_INDEX_MASK;
- if (p_index < priv->rx_c_index)
- rxpkttoprocess = (DMA_C_INDEX_MASK + 1) -
- priv->rx_c_index + p_index;
+ if (likely(p_index >= ring->c_index))
+ rxpkttoprocess = p_index - ring->c_index;
else
- rxpkttoprocess = p_index - priv->rx_c_index;
+ rxpkttoprocess = (DMA_C_INDEX_MASK + 1) - ring->c_index +
+ p_index;
netif_dbg(priv, rx_status, dev,
"RDMA: rxpkttoprocess=%d\n", rxpkttoprocess);
while ((rxpktprocessed < rxpkttoprocess) &&
(rxpktprocessed < budget)) {
- cb = &priv->rx_cbs[priv->rx_read_ptr];
- skb = cb->skb;
+ cb = &priv->rx_cbs[ring->read_ptr];
+ skb = bcmgenet_rx_refill(priv, cb);
- /* We do not have a backing SKB, so we do not have a
- * corresponding DMA mapping for this incoming packet since
- * bcmgenet_rx_refill always either has both skb and mapping or
- * none.
- */
if (unlikely(!skb)) {
dev->stats.rx_dropped++;
dev->stats.rx_errors++;
- goto refill;
+ goto next;
}
- /* Unmap the packet contents such that we can use the
- * RSV from the 64 bytes descriptor when enabled and save
- * a 32-bits register read
- */
- dma_unmap_single(&dev->dev, dma_unmap_addr(cb, dma_addr),
- priv->rx_buf_len, DMA_FROM_DEVICE);
-
if (!priv->desc_64b_en) {
dma_length_status =
- dmadesc_get_length_status(priv,
- priv->rx_bds +
- (priv->rx_read_ptr *
- DMA_DESC_SIZE));
+ dmadesc_get_length_status(priv, cb->bd_addr);
} else {
struct status_64 *status;
@@ -1451,18 +1487,18 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv,
netif_dbg(priv, rx_status, dev,
"%s:p_ind=%d c_ind=%d read_ptr=%d len_stat=0x%08x\n",
- __func__, p_index, priv->rx_c_index,
- priv->rx_read_ptr, dma_length_status);
+ __func__, p_index, ring->c_index,
+ ring->read_ptr, dma_length_status);
if (unlikely(!(dma_flag & DMA_EOP) || !(dma_flag & DMA_SOP))) {
netif_err(priv, rx_status, dev,
"dropping fragmented packet!\n");
dev->stats.rx_dropped++;
dev->stats.rx_errors++;
- dev_kfree_skb_any(cb->skb);
- cb->skb = NULL;
- goto refill;
+ dev_kfree_skb_any(skb);
+ goto next;
}
+
/* report errors */
if (unlikely(dma_flag & (DMA_RX_CRC_ERROR |
DMA_RX_OV |
@@ -1481,11 +1517,8 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv,
dev->stats.rx_length_errors++;
dev->stats.rx_dropped++;
dev->stats.rx_errors++;
-
- /* discard the packet and advance consumer index.*/
- dev_kfree_skb_any(cb->skb);
- cb->skb = NULL;
- goto refill;
+ dev_kfree_skb_any(skb);
+ goto next;
} /* error packet */
chksum_ok = (dma_flag & priv->dma_rx_chk_bit) &&
@@ -1517,47 +1550,61 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv,
dev->stats.multicast++;
/* Notify kernel */
- napi_gro_receive(&priv->napi, skb);
- cb->skb = NULL;
+ napi_gro_receive(&ring->napi, skb);
netif_dbg(priv, rx_status, dev, "pushed up to kernel\n");
- /* refill RX path on the current control block */
-refill:
- err = bcmgenet_rx_refill(priv, cb);
- if (err) {
- priv->mib.alloc_rx_buff_failed++;
- netif_err(priv, rx_err, dev, "Rx refill failed\n");
- }
-
+next:
rxpktprocessed++;
- priv->rx_read_ptr++;
- priv->rx_read_ptr &= (priv->num_rx_bds - 1);
+ if (likely(ring->read_ptr < ring->end_ptr))
+ ring->read_ptr++;
+ else
+ ring->read_ptr = ring->cb_ptr;
+
+ ring->c_index = (ring->c_index + 1) & DMA_C_INDEX_MASK;
+ bcmgenet_rdma_ring_writel(priv, ring->index, ring->c_index, RDMA_CONS_INDEX);
}
return rxpktprocessed;
}
+/* Rx NAPI polling method */
+static int bcmgenet_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct bcmgenet_rx_ring *ring = container_of(napi,
+ struct bcmgenet_rx_ring, napi);
+ unsigned int work_done;
+
+ work_done = bcmgenet_desc_rx(ring, budget);
+
+ if (work_done < budget) {
+ napi_complete(napi);
+ ring->int_enable(ring);
+ }
+
+ return work_done;
+}
+
/* Assign skb to RX DMA descriptor. */
-static int bcmgenet_alloc_rx_buffers(struct bcmgenet_priv *priv)
+static int bcmgenet_alloc_rx_buffers(struct bcmgenet_priv *priv,
+ struct bcmgenet_rx_ring *ring)
{
struct enet_cb *cb;
- int ret = 0;
+ struct sk_buff *skb;
int i;
- netif_dbg(priv, hw, priv->dev, "%s:\n", __func__);
+ netif_dbg(priv, hw, priv->dev, "%s\n", __func__);
/* loop here for each buffer needing assign */
- for (i = 0; i < priv->num_rx_bds; i++) {
- cb = &priv->rx_cbs[priv->rx_bd_assign_index];
- if (cb->skb)
- continue;
-
- ret = bcmgenet_rx_refill(priv, cb);
- if (ret)
- break;
+ for (i = 0; i < ring->size; i++) {
+ cb = ring->cbs + i;
+ skb = bcmgenet_rx_refill(priv, cb);
+ if (skb)
+ dev_kfree_skb_any(skb);
+ if (!cb->skb)
+ return -ENOMEM;
}
- return ret;
+ return 0;
}
static void bcmgenet_free_rx_buffers(struct bcmgenet_priv *priv)
@@ -1645,8 +1692,10 @@ static int init_umac(struct bcmgenet_priv *priv)
{
struct device *kdev = &priv->pdev->dev;
int ret;
- u32 reg, cpu_mask_clear;
- int index;
+ u32 reg;
+ u32 int0_enable = 0;
+ u32 int1_enable = 0;
+ int i;
dev_dbg(&priv->pdev->dev, "bcmgenet: init_umac\n");
@@ -1673,16 +1722,21 @@ static int init_umac(struct bcmgenet_priv *priv)
bcmgenet_intr_disable(priv);
- cpu_mask_clear = UMAC_IRQ_RXDMA_BDONE | UMAC_IRQ_TXDMA_BDONE;
+ /* Enable Rx default queue 16 interrupts */
+ int0_enable |= UMAC_IRQ_RXDMA_DONE;
- dev_dbg(kdev, "%s:Enabling RXDMA_BDONE interrupt\n", __func__);
+ /* Enable Tx default queue 16 interrupts */
+ int0_enable |= UMAC_IRQ_TXDMA_DONE;
/* Monitor cable plug/unplugged event for internal PHY */
if (phy_is_internal(priv->phydev)) {
- cpu_mask_clear |= (UMAC_IRQ_LINK_DOWN | UMAC_IRQ_LINK_UP);
+ int0_enable |= UMAC_IRQ_LINK_EVENT;
} else if (priv->ext_phy) {
- cpu_mask_clear |= (UMAC_IRQ_LINK_DOWN | UMAC_IRQ_LINK_UP);
+ int0_enable |= UMAC_IRQ_LINK_EVENT;
} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
+ if (priv->hw_params->flags & GENET_HAS_MOCA_LINK_DET)
+ int0_enable |= UMAC_IRQ_LINK_EVENT;
+
reg = bcmgenet_bp_mc_get(priv);
reg |= BIT(priv->hw_params->bp_in_en_shift);
@@ -1696,13 +1750,18 @@ static int init_umac(struct bcmgenet_priv *priv)
/* Enable MDIO interrupts on GENET v3+ */
if (priv->hw_params->flags & GENET_HAS_MDIO_INTR)
- cpu_mask_clear |= UMAC_IRQ_MDIO_DONE | UMAC_IRQ_MDIO_ERROR;
+ int0_enable |= (UMAC_IRQ_MDIO_DONE | UMAC_IRQ_MDIO_ERROR);
- bcmgenet_intrl2_0_writel(priv, cpu_mask_clear, INTRL2_CPU_MASK_CLEAR);
+ /* Enable Rx priority queue interrupts */
+ for (i = 0; i < priv->hw_params->rx_queues; ++i)
+ int1_enable |= (1 << (UMAC_IRQ1_RX_INTR_SHIFT + i));
- for (index = 0; index < priv->hw_params->tx_queues; index++)
- bcmgenet_intrl2_1_writel(priv, (1 << index),
- INTRL2_CPU_MASK_CLEAR);
+ /* Enable Tx priority queue interrupts */
+ for (i = 0; i < priv->hw_params->tx_queues; ++i)
+ int1_enable |= (1 << i);
+
+ bcmgenet_intrl2_0_writel(priv, int0_enable, INTRL2_CPU_MASK_CLEAR);
+ bcmgenet_intrl2_1_writel(priv, int1_enable, INTRL2_CPU_MASK_CLEAR);
/* Enable rx/tx engine.*/
dev_dbg(kdev, "done init umac\n");
@@ -1710,21 +1769,17 @@ static int init_umac(struct bcmgenet_priv *priv)
return 0;
}
-/* Initialize all house-keeping variables for a TX ring, along
- * with corresponding hardware registers
- */
+/* Initialize a Tx ring along with corresponding hardware registers */
static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
unsigned int index, unsigned int size,
- unsigned int write_ptr, unsigned int end_ptr)
+ unsigned int start_ptr, unsigned int end_ptr)
{
struct bcmgenet_tx_ring *ring = &priv->tx_rings[index];
u32 words_per_bd = WORDS_PER_BD(priv);
u32 flow_period_val = 0;
- unsigned int first_bd;
spin_lock_init(&ring->lock);
ring->priv = priv;
- netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64);
ring->index = index;
if (index == DESC_INDEX) {
ring->queue = 0;
@@ -1735,12 +1790,13 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
ring->int_enable = bcmgenet_tx_ring_int_enable;
ring->int_disable = bcmgenet_tx_ring_int_disable;
}
- ring->cbs = priv->tx_cbs + write_ptr;
+ ring->cbs = priv->tx_cbs + start_ptr;
ring->size = size;
+ ring->clean_ptr = start_ptr;
ring->c_index = 0;
ring->free_bds = size;
- ring->write_ptr = write_ptr;
- ring->cb_ptr = write_ptr;
+ ring->write_ptr = start_ptr;
+ ring->cb_ptr = start_ptr;
ring->end_ptr = end_ptr - 1;
ring->prod_index = 0;
@@ -1754,149 +1810,319 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
/* Disable rate control for now */
bcmgenet_tdma_ring_writel(priv, index, flow_period_val,
TDMA_FLOW_PERIOD);
- /* Unclassified traffic goes to ring 16 */
bcmgenet_tdma_ring_writel(priv, index,
((size << DMA_RING_SIZE_SHIFT) |
RX_BUF_LENGTH), DMA_RING_BUF_SIZE);
- first_bd = write_ptr;
-
/* Set start and end address, read and write pointers */
- bcmgenet_tdma_ring_writel(priv, index, first_bd * words_per_bd,
+ bcmgenet_tdma_ring_writel(priv, index, start_ptr * words_per_bd,
DMA_START_ADDR);
- bcmgenet_tdma_ring_writel(priv, index, first_bd * words_per_bd,
+ bcmgenet_tdma_ring_writel(priv, index, start_ptr * words_per_bd,
TDMA_READ_PTR);
- bcmgenet_tdma_ring_writel(priv, index, first_bd,
+ bcmgenet_tdma_ring_writel(priv, index, start_ptr * words_per_bd,
TDMA_WRITE_PTR);
bcmgenet_tdma_ring_writel(priv, index, end_ptr * words_per_bd - 1,
DMA_END_ADDR);
-
- napi_enable(&ring->napi);
-}
-
-static void bcmgenet_fini_tx_ring(struct bcmgenet_priv *priv,
- unsigned int index)
-{
- struct bcmgenet_tx_ring *ring = &priv->tx_rings[index];
-
- napi_disable(&ring->napi);
- netif_napi_del(&ring->napi);
}
/* Initialize a RDMA ring */
static int bcmgenet_init_rx_ring(struct bcmgenet_priv *priv,
- unsigned int index, unsigned int size)
+ unsigned int index, unsigned int size,
+ unsigned int start_ptr, unsigned int end_ptr)
{
+ struct bcmgenet_rx_ring *ring = &priv->rx_rings[index];
u32 words_per_bd = WORDS_PER_BD(priv);
int ret;
- priv->num_rx_bds = TOTAL_DESC;
- priv->rx_bds = priv->base + priv->hw_params->rdma_offset;
- priv->rx_bd_assign_ptr = priv->rx_bds;
- priv->rx_bd_assign_index = 0;
- priv->rx_c_index = 0;
- priv->rx_read_ptr = 0;
- priv->rx_cbs = kcalloc(priv->num_rx_bds, sizeof(struct enet_cb),
- GFP_KERNEL);
- if (!priv->rx_cbs)
- return -ENOMEM;
+ ring->priv = priv;
+ ring->index = index;
+ if (index == DESC_INDEX) {
+ ring->int_enable = bcmgenet_rx_ring16_int_enable;
+ ring->int_disable = bcmgenet_rx_ring16_int_disable;
+ } else {
+ ring->int_enable = bcmgenet_rx_ring_int_enable;
+ ring->int_disable = bcmgenet_rx_ring_int_disable;
+ }
+ ring->cbs = priv->rx_cbs + start_ptr;
+ ring->size = size;
+ ring->c_index = 0;
+ ring->read_ptr = start_ptr;
+ ring->cb_ptr = start_ptr;
+ ring->end_ptr = end_ptr - 1;
- ret = bcmgenet_alloc_rx_buffers(priv);
- if (ret) {
- kfree(priv->rx_cbs);
+ ret = bcmgenet_alloc_rx_buffers(priv, ring);
+ if (ret)
return ret;
- }
- bcmgenet_rdma_ring_writel(priv, index, 0, RDMA_WRITE_PTR);
bcmgenet_rdma_ring_writel(priv, index, 0, RDMA_PROD_INDEX);
bcmgenet_rdma_ring_writel(priv, index, 0, RDMA_CONS_INDEX);
+ bcmgenet_rdma_ring_writel(priv, index, 1, DMA_MBUF_DONE_THRESH);
bcmgenet_rdma_ring_writel(priv, index,
((size << DMA_RING_SIZE_SHIFT) |
RX_BUF_LENGTH), DMA_RING_BUF_SIZE);
- bcmgenet_rdma_ring_writel(priv, index, 0, DMA_START_ADDR);
- bcmgenet_rdma_ring_writel(priv, index,
- words_per_bd * size - 1, DMA_END_ADDR);
bcmgenet_rdma_ring_writel(priv, index,
(DMA_FC_THRESH_LO <<
DMA_XOFF_THRESHOLD_SHIFT) |
DMA_FC_THRESH_HI, RDMA_XON_XOFF_THRESH);
- bcmgenet_rdma_ring_writel(priv, index, 0, RDMA_READ_PTR);
+
+ /* Set start and end address, read and write pointers */
+ bcmgenet_rdma_ring_writel(priv, index, start_ptr * words_per_bd,
+ DMA_START_ADDR);
+ bcmgenet_rdma_ring_writel(priv, index, start_ptr * words_per_bd,
+ RDMA_READ_PTR);
+ bcmgenet_rdma_ring_writel(priv, index, start_ptr * words_per_bd,
+ RDMA_WRITE_PTR);
+ bcmgenet_rdma_ring_writel(priv, index, end_ptr * words_per_bd - 1,
+ DMA_END_ADDR);
return ret;
}
-/* init multi xmit queues, only available for GENET2+
- * the queue is partitioned as follows:
+static void bcmgenet_init_tx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_tx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->tx_queues; ++i) {
+ ring = &priv->tx_rings[i];
+ netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64);
+ }
+
+ ring = &priv->tx_rings[DESC_INDEX];
+ netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64);
+}
+
+static void bcmgenet_enable_tx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_tx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->tx_queues; ++i) {
+ ring = &priv->tx_rings[i];
+ napi_enable(&ring->napi);
+ }
+
+ ring = &priv->tx_rings[DESC_INDEX];
+ napi_enable(&ring->napi);
+}
+
+static void bcmgenet_disable_tx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_tx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->tx_queues; ++i) {
+ ring = &priv->tx_rings[i];
+ napi_disable(&ring->napi);
+ }
+
+ ring = &priv->tx_rings[DESC_INDEX];
+ napi_disable(&ring->napi);
+}
+
+static void bcmgenet_fini_tx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_tx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->tx_queues; ++i) {
+ ring = &priv->tx_rings[i];
+ netif_napi_del(&ring->napi);
+ }
+
+ ring = &priv->tx_rings[DESC_INDEX];
+ netif_napi_del(&ring->napi);
+}
+
+/* Initialize Tx queues
*
- * queue 0 - 3 is priority based, each one has 32 descriptors,
+ * Queues 0-3 are priority-based, each one has 32 descriptors,
* with queue 0 being the highest priority queue.
*
- * queue 16 is the default tx queue with GENET_DEFAULT_BD_CNT
- * descriptors: 256 - (number of tx queues * bds per queues) = 128
- * descriptors.
+ * Queue 16 is the default Tx queue with
+ * GENET_Q16_TX_BD_CNT = 256 - 4 * 32 = 128 descriptors.
*
- * The transmit control block pool is then partitioned as following:
- * - tx_cbs[0...127] are for queue 16
- * - tx_ring_cbs[0] points to tx_cbs[128..159]
- * - tx_ring_cbs[1] points to tx_cbs[160..191]
- * - tx_ring_cbs[2] points to tx_cbs[192..223]
- * - tx_ring_cbs[3] points to tx_cbs[224..255]
+ * The transmit control block pool is then partitioned as follows:
+ * - Tx queue 0 uses tx_cbs[0..31]
+ * - Tx queue 1 uses tx_cbs[32..63]
+ * - Tx queue 2 uses tx_cbs[64..95]
+ * - Tx queue 3 uses tx_cbs[96..127]
+ * - Tx queue 16 uses tx_cbs[128..255]
*/
-static void bcmgenet_init_multiq(struct net_device *dev)
+static void bcmgenet_init_tx_queues(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- unsigned int i, dma_enable;
- u32 reg, dma_ctrl, ring_cfg = 0;
+ u32 i, dma_enable;
+ u32 dma_ctrl, ring_cfg;
u32 dma_priority[3] = {0, 0, 0};
- if (!netif_is_multiqueue(dev)) {
- netdev_warn(dev, "called with non multi queue aware HW\n");
- return;
- }
-
dma_ctrl = bcmgenet_tdma_readl(priv, DMA_CTRL);
dma_enable = dma_ctrl & DMA_EN;
dma_ctrl &= ~DMA_EN;
bcmgenet_tdma_writel(priv, dma_ctrl, DMA_CTRL);
+ dma_ctrl = 0;
+ ring_cfg = 0;
+
/* Enable strict priority arbiter mode */
bcmgenet_tdma_writel(priv, DMA_ARBITER_SP, DMA_ARB_CTRL);
+ /* Initialize Tx priority queues */
for (i = 0; i < priv->hw_params->tx_queues; i++) {
- /* first 64 tx_cbs are reserved for default tx queue
- * (ring 16)
- */
- bcmgenet_init_tx_ring(priv, i, priv->hw_params->bds_cnt,
- i * priv->hw_params->bds_cnt,
- (i + 1) * priv->hw_params->bds_cnt);
-
- /* Configure ring as descriptor ring and setup priority */
- ring_cfg |= 1 << i;
- dma_ctrl |= 1 << (i + DMA_RING_BUF_EN_SHIFT);
-
+ bcmgenet_init_tx_ring(priv, i, priv->hw_params->tx_bds_per_q,
+ i * priv->hw_params->tx_bds_per_q,
+ (i + 1) * priv->hw_params->tx_bds_per_q);
+ ring_cfg |= (1 << i);
+ dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
dma_priority[DMA_PRIO_REG_INDEX(i)] |=
((GENET_Q0_PRIORITY + i) << DMA_PRIO_REG_SHIFT(i));
}
- /* Set ring 16 priority and program the hardware registers */
+ /* Initialize Tx default queue 16 */
+ bcmgenet_init_tx_ring(priv, DESC_INDEX, GENET_Q16_TX_BD_CNT,
+ priv->hw_params->tx_queues *
+ priv->hw_params->tx_bds_per_q,
+ TOTAL_DESC);
+ ring_cfg |= (1 << DESC_INDEX);
+ dma_ctrl |= (1 << (DESC_INDEX + DMA_RING_BUF_EN_SHIFT));
dma_priority[DMA_PRIO_REG_INDEX(DESC_INDEX)] |=
((GENET_Q0_PRIORITY + priv->hw_params->tx_queues) <<
DMA_PRIO_REG_SHIFT(DESC_INDEX));
+
+ /* Set Tx queue priorities */
bcmgenet_tdma_writel(priv, dma_priority[0], DMA_PRIORITY_0);
bcmgenet_tdma_writel(priv, dma_priority[1], DMA_PRIORITY_1);
bcmgenet_tdma_writel(priv, dma_priority[2], DMA_PRIORITY_2);
+ /* Initialize Tx NAPI */
+ bcmgenet_init_tx_napi(priv);
+
+ /* Enable Tx queues */
+ bcmgenet_tdma_writel(priv, ring_cfg, DMA_RING_CFG);
+
+ /* Enable Tx DMA */
+ if (dma_enable)
+ dma_ctrl |= DMA_EN;
+ bcmgenet_tdma_writel(priv, dma_ctrl, DMA_CTRL);
+}
+
+static void bcmgenet_init_rx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_rx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->rx_queues; ++i) {
+ ring = &priv->rx_rings[i];
+ netif_napi_add(priv->dev, &ring->napi, bcmgenet_rx_poll, 64);
+ }
+
+ ring = &priv->rx_rings[DESC_INDEX];
+ netif_napi_add(priv->dev, &ring->napi, bcmgenet_rx_poll, 64);
+}
+
+static void bcmgenet_enable_rx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_rx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->rx_queues; ++i) {
+ ring = &priv->rx_rings[i];
+ napi_enable(&ring->napi);
+ }
+
+ ring = &priv->rx_rings[DESC_INDEX];
+ napi_enable(&ring->napi);
+}
+
+static void bcmgenet_disable_rx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_rx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->rx_queues; ++i) {
+ ring = &priv->rx_rings[i];
+ napi_disable(&ring->napi);
+ }
+
+ ring = &priv->rx_rings[DESC_INDEX];
+ napi_disable(&ring->napi);
+}
+
+static void bcmgenet_fini_rx_napi(struct bcmgenet_priv *priv)
+{
+ unsigned int i;
+ struct bcmgenet_rx_ring *ring;
+
+ for (i = 0; i < priv->hw_params->rx_queues; ++i) {
+ ring = &priv->rx_rings[i];
+ netif_napi_del(&ring->napi);
+ }
+
+ ring = &priv->rx_rings[DESC_INDEX];
+ netif_napi_del(&ring->napi);
+}
+
+/* Initialize Rx queues
+ *
+ * Queues 0-15 are priority queues. Hardware Filtering Block (HFB) can be
+ * used to direct traffic to these queues.
+ *
+ * Queue 16 is the default Rx queue with GENET_Q16_RX_BD_CNT descriptors.
+ */
+static int bcmgenet_init_rx_queues(struct net_device *dev)
+{
+ struct bcmgenet_priv *priv = netdev_priv(dev);
+ u32 i;
+ u32 dma_enable;
+ u32 dma_ctrl;
+ u32 ring_cfg;
+ int ret;
+
+ dma_ctrl = bcmgenet_rdma_readl(priv, DMA_CTRL);
+ dma_enable = dma_ctrl & DMA_EN;
+ dma_ctrl &= ~DMA_EN;
+ bcmgenet_rdma_writel(priv, dma_ctrl, DMA_CTRL);
+
+ dma_ctrl = 0;
+ ring_cfg = 0;
+
+ /* Initialize Rx priority queues */
+ for (i = 0; i < priv->hw_params->rx_queues; i++) {
+ ret = bcmgenet_init_rx_ring(priv, i,
+ priv->hw_params->rx_bds_per_q,
+ i * priv->hw_params->rx_bds_per_q,
+ (i + 1) *
+ priv->hw_params->rx_bds_per_q);
+ if (ret)
+ return ret;
+
+ ring_cfg |= (1 << i);
+ dma_ctrl |= (1 << (i + DMA_RING_BUF_EN_SHIFT));
+ }
+
+ /* Initialize Rx default queue 16 */
+ ret = bcmgenet_init_rx_ring(priv, DESC_INDEX, GENET_Q16_RX_BD_CNT,
+ priv->hw_params->rx_queues *
+ priv->hw_params->rx_bds_per_q,
+ TOTAL_DESC);
+ if (ret)
+ return ret;
+
+ ring_cfg |= (1 << DESC_INDEX);
+ dma_ctrl |= (1 << (DESC_INDEX + DMA_RING_BUF_EN_SHIFT));
+
+ /* Initialize Rx NAPI */
+ bcmgenet_init_rx_napi(priv);
+
/* Enable rings */
- reg = bcmgenet_tdma_readl(priv, DMA_RING_CFG);
- reg |= ring_cfg;
- bcmgenet_tdma_writel(priv, reg, DMA_RING_CFG);
+ bcmgenet_rdma_writel(priv, ring_cfg, DMA_RING_CFG);
/* Configure ring as descriptor ring and re-enable DMA if enabled */
- reg = bcmgenet_tdma_readl(priv, DMA_CTRL);
- reg |= dma_ctrl;
if (dma_enable)
- reg |= DMA_EN;
- bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
+ dma_ctrl |= DMA_EN;
+ bcmgenet_rdma_writel(priv, dma_ctrl, DMA_CTRL);
+
+ return 0;
}
static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv)
@@ -1950,10 +2176,13 @@ static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv)
return ret;
}
-static void __bcmgenet_fini_dma(struct bcmgenet_priv *priv)
+static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
{
int i;
+ bcmgenet_fini_rx_napi(priv);
+ bcmgenet_fini_tx_napi(priv);
+
/* disable DMA */
bcmgenet_dma_teardown(priv);
@@ -1969,37 +2198,27 @@ static void __bcmgenet_fini_dma(struct bcmgenet_priv *priv)
kfree(priv->tx_cbs);
}
-static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
-{
- int i;
-
- bcmgenet_fini_tx_ring(priv, DESC_INDEX);
-
- for (i = 0; i < priv->hw_params->tx_queues; i++)
- bcmgenet_fini_tx_ring(priv, i);
-
- __bcmgenet_fini_dma(priv);
-}
-
/* init_edma: Initialize DMA control register */
static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
{
int ret;
+ unsigned int i;
+ struct enet_cb *cb;
- netif_dbg(priv, hw, priv->dev, "bcmgenet: init_edma\n");
-
- /* by default, enable ring 16 (descriptor based) */
- ret = bcmgenet_init_rx_ring(priv, DESC_INDEX, TOTAL_DESC);
- if (ret) {
- netdev_err(priv->dev, "failed to initialize RX ring\n");
- return ret;
- }
+ netif_dbg(priv, hw, priv->dev, "%s\n", __func__);
- /* init rDma */
- bcmgenet_rdma_writel(priv, DMA_MAX_BURST_LENGTH, DMA_SCB_BURST_SIZE);
+ /* Initialize common Rx ring structures */
+ priv->rx_bds = priv->base + priv->hw_params->rdma_offset;
+ priv->num_rx_bds = TOTAL_DESC;
+ priv->rx_cbs = kcalloc(priv->num_rx_bds, sizeof(struct enet_cb),
+ GFP_KERNEL);
+ if (!priv->rx_cbs)
+ return -ENOMEM;
- /* Init tDma */
- bcmgenet_tdma_writel(priv, DMA_MAX_BURST_LENGTH, DMA_SCB_BURST_SIZE);
+ for (i = 0; i < priv->num_rx_bds; i++) {
+ cb = priv->rx_cbs + i;
+ cb->bd_addr = priv->rx_bds + i * DMA_DESC_SIZE;
+ }
/* Initialize common TX ring structures */
priv->tx_bds = priv->base + priv->hw_params->tdma_offset;
@@ -2007,43 +2226,35 @@ static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
priv->tx_cbs = kcalloc(priv->num_tx_bds, sizeof(struct enet_cb),
GFP_KERNEL);
if (!priv->tx_cbs) {
- __bcmgenet_fini_dma(priv);
+ kfree(priv->rx_cbs);
return -ENOMEM;
}
- /* initialize multi xmit queue */
- bcmgenet_init_multiq(priv->dev);
-
- /* initialize special ring 16 */
- bcmgenet_init_tx_ring(priv, DESC_INDEX, GENET_DEFAULT_BD_CNT,
- priv->hw_params->tx_queues *
- priv->hw_params->bds_cnt,
- TOTAL_DESC);
+ for (i = 0; i < priv->num_tx_bds; i++) {
+ cb = priv->tx_cbs + i;
+ cb->bd_addr = priv->tx_bds + i * DMA_DESC_SIZE;
+ }
- return 0;
-}
+ /* Init rDma */
+ bcmgenet_rdma_writel(priv, DMA_MAX_BURST_LENGTH, DMA_SCB_BURST_SIZE);
-/* NAPI polling method*/
-static int bcmgenet_poll(struct napi_struct *napi, int budget)
-{
- struct bcmgenet_priv *priv = container_of(napi,
- struct bcmgenet_priv, napi);
- unsigned int work_done;
+ /* Initialize Rx queues */
+ ret = bcmgenet_init_rx_queues(priv->dev);
+ if (ret) {
+ netdev_err(priv->dev, "failed to initialize Rx queues\n");
+ bcmgenet_free_rx_buffers(priv);
+ kfree(priv->rx_cbs);
+ kfree(priv->tx_cbs);
+ return ret;
+ }
- work_done = bcmgenet_desc_rx(priv, budget);
+ /* Init tDma */
+ bcmgenet_tdma_writel(priv, DMA_MAX_BURST_LENGTH, DMA_SCB_BURST_SIZE);
- /* Advancing our consumer index*/
- priv->rx_c_index += work_done;
- priv->rx_c_index &= DMA_C_INDEX_MASK;
- bcmgenet_rdma_ring_writel(priv, DESC_INDEX,
- priv->rx_c_index, RDMA_CONS_INDEX);
- if (work_done < budget) {
- napi_complete(napi);
- bcmgenet_intrl2_0_writel(priv, UMAC_IRQ_RXDMA_BDONE,
- INTRL2_CPU_MASK_CLEAR);
- }
+ /* Initialize Tx queues */
+ bcmgenet_init_tx_queues(priv->dev);
- return work_done;
+ return 0;
}
/* Interrupt bottom half */
@@ -2063,87 +2274,100 @@ static void bcmgenet_irq_task(struct work_struct *work)
/* Link UP/DOWN event */
if ((priv->hw_params->flags & GENET_HAS_MDIO_INTR) &&
- (priv->irq0_stat & (UMAC_IRQ_LINK_UP|UMAC_IRQ_LINK_DOWN))) {
+ (priv->irq0_stat & UMAC_IRQ_LINK_EVENT)) {
phy_mac_interrupt(priv->phydev,
- priv->irq0_stat & UMAC_IRQ_LINK_UP);
- priv->irq0_stat &= ~(UMAC_IRQ_LINK_UP|UMAC_IRQ_LINK_DOWN);
+ !!(priv->irq0_stat & UMAC_IRQ_LINK_UP));
+ priv->irq0_stat &= ~UMAC_IRQ_LINK_EVENT;
}
}
-/* bcmgenet_isr1: interrupt handler for ring buffer. */
+/* bcmgenet_isr1: handle Rx and Tx priority queues */
static irqreturn_t bcmgenet_isr1(int irq, void *dev_id)
{
struct bcmgenet_priv *priv = dev_id;
- struct bcmgenet_tx_ring *ring;
+ struct bcmgenet_rx_ring *rx_ring;
+ struct bcmgenet_tx_ring *tx_ring;
unsigned int index;
/* Save irq status for bottom-half processing. */
priv->irq1_stat =
bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_STAT) &
~bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_MASK_STATUS);
+
/* clear interrupts */
bcmgenet_intrl2_1_writel(priv, priv->irq1_stat, INTRL2_CPU_CLEAR);
netif_dbg(priv, intr, priv->dev,
"%s: IRQ=0x%x\n", __func__, priv->irq1_stat);
- /* Check the MBDONE interrupts.
- * packet is done, reclaim descriptors
- */
+ /* Check Rx priority queue interrupts */
+ for (index = 0; index < priv->hw_params->rx_queues; index++) {
+ if (!(priv->irq1_stat & BIT(UMAC_IRQ1_RX_INTR_SHIFT + index)))
+ continue;
+
+ rx_ring = &priv->rx_rings[index];
+
+ if (likely(napi_schedule_prep(&rx_ring->napi))) {
+ rx_ring->int_disable(rx_ring);
+ __napi_schedule(&rx_ring->napi);
+ }
+ }
+
+ /* Check Tx priority queue interrupts */
for (index = 0; index < priv->hw_params->tx_queues; index++) {
if (!(priv->irq1_stat & BIT(index)))
continue;
- ring = &priv->tx_rings[index];
+ tx_ring = &priv->tx_rings[index];
- if (likely(napi_schedule_prep(&ring->napi))) {
- ring->int_disable(priv, ring);
- __napi_schedule(&ring->napi);
+ if (likely(napi_schedule_prep(&tx_ring->napi))) {
+ tx_ring->int_disable(tx_ring);
+ __napi_schedule(&tx_ring->napi);
}
}
return IRQ_HANDLED;
}
-/* bcmgenet_isr0: Handle various interrupts. */
+/* bcmgenet_isr0: handle Rx and Tx default queues + other stuff */
static irqreturn_t bcmgenet_isr0(int irq, void *dev_id)
{
struct bcmgenet_priv *priv = dev_id;
+ struct bcmgenet_rx_ring *rx_ring;
+ struct bcmgenet_tx_ring *tx_ring;
/* Save irq status for bottom-half processing. */
priv->irq0_stat =
bcmgenet_intrl2_0_readl(priv, INTRL2_CPU_STAT) &
~bcmgenet_intrl2_0_readl(priv, INTRL2_CPU_MASK_STATUS);
+
/* clear interrupts */
bcmgenet_intrl2_0_writel(priv, priv->irq0_stat, INTRL2_CPU_CLEAR);
netif_dbg(priv, intr, priv->dev,
"IRQ=0x%x\n", priv->irq0_stat);
- if (priv->irq0_stat & (UMAC_IRQ_RXDMA_BDONE | UMAC_IRQ_RXDMA_PDONE)) {
- /* We use NAPI(software interrupt throttling, if
- * Rx Descriptor throttling is not used.
- * Disable interrupt, will be enabled in the poll method.
- */
- if (likely(napi_schedule_prep(&priv->napi))) {
- bcmgenet_intrl2_0_writel(priv, UMAC_IRQ_RXDMA_BDONE,
- INTRL2_CPU_MASK_SET);
- __napi_schedule(&priv->napi);
+ if (priv->irq0_stat & UMAC_IRQ_RXDMA_DONE) {
+ rx_ring = &priv->rx_rings[DESC_INDEX];
+
+ if (likely(napi_schedule_prep(&rx_ring->napi))) {
+ rx_ring->int_disable(rx_ring);
+ __napi_schedule(&rx_ring->napi);
}
}
- if (priv->irq0_stat &
- (UMAC_IRQ_TXDMA_BDONE | UMAC_IRQ_TXDMA_PDONE)) {
- struct bcmgenet_tx_ring *ring = &priv->tx_rings[DESC_INDEX];
- if (likely(napi_schedule_prep(&ring->napi))) {
- ring->int_disable(priv, ring);
- __napi_schedule(&ring->napi);
+ if (priv->irq0_stat & UMAC_IRQ_TXDMA_DONE) {
+ tx_ring = &priv->tx_rings[DESC_INDEX];
+
+ if (likely(napi_schedule_prep(&tx_ring->napi))) {
+ tx_ring->int_disable(tx_ring);
+ __napi_schedule(&tx_ring->napi);
}
}
+
if (priv->irq0_stat & (UMAC_IRQ_PHY_DET_R |
UMAC_IRQ_PHY_DET_F |
- UMAC_IRQ_LINK_UP |
- UMAC_IRQ_LINK_DOWN |
+ UMAC_IRQ_LINK_EVENT |
UMAC_IRQ_HFB_SM |
UMAC_IRQ_HFB_MM |
UMAC_IRQ_MPD_R)) {
@@ -2227,18 +2451,170 @@ static void bcmgenet_enable_dma(struct bcmgenet_priv *priv, u32 dma_ctrl)
bcmgenet_tdma_writel(priv, reg, DMA_CTRL);
}
+static bool bcmgenet_hfb_is_filter_enabled(struct bcmgenet_priv *priv,
+ u32 f_index)
+{
+ u32 offset;
+ u32 reg;
+
+ offset = HFB_FLT_ENABLE_V3PLUS + (f_index < 32) * sizeof(u32);
+ reg = bcmgenet_hfb_reg_readl(priv, offset);
+ return !!(reg & (1 << (f_index % 32)));
+}
+
+static void bcmgenet_hfb_enable_filter(struct bcmgenet_priv *priv, u32 f_index)
+{
+ u32 offset;
+ u32 reg;
+
+ offset = HFB_FLT_ENABLE_V3PLUS + (f_index < 32) * sizeof(u32);
+ reg = bcmgenet_hfb_reg_readl(priv, offset);
+ reg |= (1 << (f_index % 32));
+ bcmgenet_hfb_reg_writel(priv, reg, offset);
+}
+
+static void bcmgenet_hfb_set_filter_rx_queue_mapping(struct bcmgenet_priv *priv,
+ u32 f_index, u32 rx_queue)
+{
+ u32 offset;
+ u32 reg;
+
+ offset = f_index / 8;
+ reg = bcmgenet_rdma_readl(priv, DMA_INDEX2RING_0 + offset);
+ reg &= ~(0xF << (4 * (f_index % 8)));
+ reg |= ((rx_queue & 0xF) << (4 * (f_index % 8)));
+ bcmgenet_rdma_writel(priv, reg, DMA_INDEX2RING_0 + offset);
+}
+
+static void bcmgenet_hfb_set_filter_length(struct bcmgenet_priv *priv,
+ u32 f_index, u32 f_length)
+{
+ u32 offset;
+ u32 reg;
+
+ offset = HFB_FLT_LEN_V3PLUS +
+ ((priv->hw_params->hfb_filter_cnt - 1 - f_index) / 4) *
+ sizeof(u32);
+ reg = bcmgenet_hfb_reg_readl(priv, offset);
+ reg &= ~(0xFF << (8 * (f_index % 4)));
+ reg |= ((f_length & 0xFF) << (8 * (f_index % 4)));
+ bcmgenet_hfb_reg_writel(priv, reg, offset);
+}
+
+static int bcmgenet_hfb_find_unused_filter(struct bcmgenet_priv *priv)
+{
+ u32 f_index;
+
+ for (f_index = 0; f_index < priv->hw_params->hfb_filter_cnt; f_index++)
+ if (!bcmgenet_hfb_is_filter_enabled(priv, f_index))
+ return f_index;
+
+ return -ENOMEM;
+}
+
+/* bcmgenet_hfb_add_filter
+ *
+ * Add new filter to Hardware Filter Block to match and direct Rx traffic to
+ * desired Rx queue.
+ *
+ * f_data is an array of unsigned 32-bit integers where each 32-bit integer
+ * provides filter data for 2 bytes (4 nibbles) of Rx frame:
+ *
+ * bits 31:20 - unused
+ * bit 19 - nibble 0 match enable
+ * bit 18 - nibble 1 match enable
+ * bit 17 - nibble 2 match enable
+ * bit 16 - nibble 3 match enable
+ * bits 15:12 - nibble 0 data
+ * bits 11:8 - nibble 1 data
+ * bits 7:4 - nibble 2 data
+ * bits 3:0 - nibble 3 data
+ *
+ * Example:
+ * In order to match:
+ * - Ethernet frame type = 0x0800 (IP)
+ * - IP version field = 4
+ * - IP protocol field = 0x11 (UDP)
+ *
+ * The following filter is needed:
+ * u32 hfb_filter_ipv4_udp[] = {
+ * Rx frame offset 0x00: 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ * Rx frame offset 0x08: 0x00000000, 0x00000000, 0x000F0800, 0x00084000,
+ * Rx frame offset 0x10: 0x00000000, 0x00000000, 0x00000000, 0x00030011,
+ * };
+ *
+ * To add the filter to HFB and direct the traffic to Rx queue 0, call:
+ * bcmgenet_hfb_add_filter(priv, hfb_filter_ipv4_udp,
+ * ARRAY_SIZE(hfb_filter_ipv4_udp), 0);
+ */
+int bcmgenet_hfb_add_filter(struct bcmgenet_priv *priv, u32 *f_data,
+ u32 f_length, u32 rx_queue)
+{
+ int f_index;
+ u32 i;
+
+ f_index = bcmgenet_hfb_find_unused_filter(priv);
+ if (f_index < 0)
+ return -ENOMEM;
+
+ if (f_length > priv->hw_params->hfb_filter_size)
+ return -EINVAL;
+
+ for (i = 0; i < f_length; i++)
+ bcmgenet_hfb_writel(priv, f_data[i],
+ (f_index * priv->hw_params->hfb_filter_size + i) *
+ sizeof(u32));
+
+ bcmgenet_hfb_set_filter_length(priv, f_index, 2 * f_length);
+ bcmgenet_hfb_set_filter_rx_queue_mapping(priv, f_index, rx_queue);
+ bcmgenet_hfb_enable_filter(priv, f_index);
+ bcmgenet_hfb_reg_writel(priv, 0x1, HFB_CTRL);
+
+ return 0;
+}
+
+/* bcmgenet_hfb_clear
+ *
+ * Clear Hardware Filter Block and disable all filtering.
+ */
+static void bcmgenet_hfb_clear(struct bcmgenet_priv *priv)
+{
+ u32 i;
+
+ bcmgenet_hfb_reg_writel(priv, 0x0, HFB_CTRL);
+ bcmgenet_hfb_reg_writel(priv, 0x0, HFB_FLT_ENABLE_V3PLUS);
+ bcmgenet_hfb_reg_writel(priv, 0x0, HFB_FLT_ENABLE_V3PLUS + 4);
+
+ for (i = DMA_INDEX2RING_0; i <= DMA_INDEX2RING_7; i++)
+ bcmgenet_rdma_writel(priv, 0x0, i);
+
+ for (i = 0; i < (priv->hw_params->hfb_filter_cnt / 4); i++)
+ bcmgenet_hfb_reg_writel(priv, 0x0,
+ HFB_FLT_LEN_V3PLUS + i * sizeof(u32));
+
+ for (i = 0; i < priv->hw_params->hfb_filter_cnt *
+ priv->hw_params->hfb_filter_size; i++)
+ bcmgenet_hfb_writel(priv, 0x0, i * sizeof(u32));
+}
+
+static void bcmgenet_hfb_init(struct bcmgenet_priv *priv)
+{
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv))
+ return;
+
+ bcmgenet_hfb_clear(priv);
+}
+
static void bcmgenet_netif_start(struct net_device *dev)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
/* Start the network engine */
- napi_enable(&priv->napi);
+ bcmgenet_enable_rx_napi(priv);
+ bcmgenet_enable_tx_napi(priv);
umac_enable_set(priv, CMD_TX_EN | CMD_RX_EN, true);
- if (phy_is_internal(priv->phydev))
- bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
-
netif_tx_start_all_queues(dev);
phy_start(priv->phydev);
@@ -2257,6 +2633,12 @@ static int bcmgenet_open(struct net_device *dev)
if (!IS_ERR(priv->clk))
clk_prepare_enable(priv->clk);
+ /* If this is an internal GPHY, power it back on now, before UniMAC is
+ * brought out of reset as absolutely no UniMAC activity is allowed
+ */
+ if (phy_is_internal(priv->phydev))
+ bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
+
/* take MAC out of reset */
bcmgenet_umac_reset(priv);
@@ -2286,12 +2668,15 @@ static int bcmgenet_open(struct net_device *dev)
ret = bcmgenet_init_dma(priv);
if (ret) {
netdev_err(dev, "failed to initialize DMA\n");
- goto err_fini_dma;
+ goto err_clk_disable;
}
/* Always enable ring 16 - descriptor ring */
bcmgenet_enable_dma(priv, dma_ctrl);
+ /* HFB init */
+ bcmgenet_hfb_init(priv);
+
ret = request_irq(priv->irq0, bcmgenet_isr0, IRQF_SHARED,
dev->name, priv);
if (ret < 0) {
@@ -2331,10 +2716,10 @@ static void bcmgenet_netif_stop(struct net_device *dev)
struct bcmgenet_priv *priv = netdev_priv(dev);
netif_tx_stop_all_queues(dev);
- napi_disable(&priv->napi);
phy_stop(priv->phydev);
-
bcmgenet_intr_disable(priv);
+ bcmgenet_disable_rx_napi(priv);
+ bcmgenet_disable_tx_napi(priv);
/* Wait for pending work items to complete. Since interrupts are
* disabled no new work will be scheduled.
@@ -2377,12 +2762,12 @@ static int bcmgenet_close(struct net_device *dev)
free_irq(priv->irq1, priv);
if (phy_is_internal(priv->phydev))
- bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
+ ret = bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
if (!IS_ERR(priv->clk))
clk_disable_unprepare(priv->clk);
- return 0;
+ return ret;
}
static void bcmgenet_timeout(struct net_device *dev)
@@ -2499,8 +2884,9 @@ static const struct net_device_ops bcmgenet_netdev_ops = {
static struct bcmgenet_hw_params bcmgenet_hw_params[] = {
[GENET_V1] = {
.tx_queues = 0,
+ .tx_bds_per_q = 0,
.rx_queues = 0,
- .bds_cnt = 0,
+ .rx_bds_per_q = 0,
.bp_in_en_shift = 16,
.bp_in_mask = 0xffff,
.hfb_filter_cnt = 16,
@@ -2512,8 +2898,9 @@ static struct bcmgenet_hw_params bcmgenet_hw_params[] = {
},
[GENET_V2] = {
.tx_queues = 4,
- .rx_queues = 4,
- .bds_cnt = 32,
+ .tx_bds_per_q = 32,
+ .rx_queues = 0,
+ .rx_bds_per_q = 0,
.bp_in_en_shift = 16,
.bp_in_mask = 0xffff,
.hfb_filter_cnt = 16,
@@ -2528,11 +2915,13 @@ static struct bcmgenet_hw_params bcmgenet_hw_params[] = {
},
[GENET_V3] = {
.tx_queues = 4,
- .rx_queues = 4,
- .bds_cnt = 32,
+ .tx_bds_per_q = 32,
+ .rx_queues = 0,
+ .rx_bds_per_q = 0,
.bp_in_en_shift = 17,
.bp_in_mask = 0x1ffff,
.hfb_filter_cnt = 48,
+ .hfb_filter_size = 128,
.qtag_mask = 0x3F,
.tbuf_offset = 0x0600,
.hfb_offset = 0x8000,
@@ -2540,15 +2929,18 @@ static struct bcmgenet_hw_params bcmgenet_hw_params[] = {
.rdma_offset = 0x10000,
.tdma_offset = 0x11000,
.words_per_bd = 2,
- .flags = GENET_HAS_EXT | GENET_HAS_MDIO_INTR,
+ .flags = GENET_HAS_EXT | GENET_HAS_MDIO_INTR |
+ GENET_HAS_MOCA_LINK_DET,
},
[GENET_V4] = {
.tx_queues = 4,
- .rx_queues = 4,
- .bds_cnt = 32,
+ .tx_bds_per_q = 32,
+ .rx_queues = 0,
+ .rx_bds_per_q = 0,
.bp_in_en_shift = 17,
.bp_in_mask = 0x1ffff,
.hfb_filter_cnt = 48,
+ .hfb_filter_size = 128,
.qtag_mask = 0x3F,
.tbuf_offset = 0x0600,
.hfb_offset = 0x8000,
@@ -2556,7 +2948,8 @@ static struct bcmgenet_hw_params bcmgenet_hw_params[] = {
.rdma_offset = 0x2000,
.tdma_offset = 0x4000,
.words_per_bd = 3,
- .flags = GENET_HAS_40BITS | GENET_HAS_EXT | GENET_HAS_MDIO_INTR,
+ .flags = GENET_HAS_40BITS | GENET_HAS_EXT |
+ GENET_HAS_MDIO_INTR | GENET_HAS_MOCA_LINK_DET,
},
};
@@ -2645,14 +3038,15 @@ static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv)
#endif
pr_debug("Configuration for version: %d\n"
- "TXq: %1d, RXq: %1d, BDs: %1d\n"
+ "TXq: %1d, TXqBDs: %1d, RXq: %1d, RXqBDs: %1d\n"
"BP << en: %2d, BP msk: 0x%05x\n"
"HFB count: %2d, QTAQ msk: 0x%05x\n"
"TBUF: 0x%04x, HFB: 0x%04x, HFBreg: 0x%04x\n"
"RDMA: 0x%05x, TDMA: 0x%05x\n"
"Words/BD: %d\n",
priv->version,
- params->tx_queues, params->rx_queues, params->bds_cnt,
+ params->tx_queues, params->tx_bds_per_q,
+ params->rx_queues, params->rx_bds_per_q,
params->bp_in_en_shift, params->bp_in_mask,
params->hfb_filter_cnt, params->qtag_mask,
params->tbuf_offset, params->hfb_offset,
@@ -2680,8 +3074,9 @@ static int bcmgenet_probe(struct platform_device *pdev)
struct resource *r;
int err = -EIO;
- /* Up to GENET_MAX_MQ_CNT + 1 TX queues and a single RX queue */
- dev = alloc_etherdev_mqs(sizeof(*priv), GENET_MAX_MQ_CNT + 1, 1);
+ /* Up to GENET_MAX_MQ_CNT + 1 TX queues and RX queues */
+ dev = alloc_etherdev_mqs(sizeof(*priv), GENET_MAX_MQ_CNT + 1,
+ GENET_MAX_MQ_CNT + 1);
if (!dev) {
dev_err(&pdev->dev, "can't allocate net device\n");
return -ENOMEM;
@@ -2727,7 +3122,6 @@ static int bcmgenet_probe(struct platform_device *pdev)
dev->watchdog_timeo = 2 * HZ;
dev->ethtool_ops = &bcmgenet_ethtool_ops;
dev->netdev_ops = &bcmgenet_netdev_ops;
- netif_napi_add(dev, &priv->napi, bcmgenet_poll, 64);
priv->msg_enable = netif_msg_init(-1, GENET_MSG_DEFAULT);
@@ -2860,14 +3254,16 @@ static int bcmgenet_suspend(struct device *d)
/* Prepare the device for Wake-on-LAN and switch to the slow clock */
if (device_may_wakeup(d) && priv->wolopts) {
- bcmgenet_power_down(priv, GENET_POWER_WOL_MAGIC);
+ ret = bcmgenet_power_down(priv, GENET_POWER_WOL_MAGIC);
clk_prepare_enable(priv->clk_wol);
+ } else if (phy_is_internal(priv->phydev)) {
+ ret = bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
}
/* Turn off the clocks */
clk_disable_unprepare(priv->clk);
- return 0;
+ return ret;
}
static int bcmgenet_resume(struct device *d)
@@ -2886,6 +3282,12 @@ static int bcmgenet_resume(struct device *d)
if (ret)
return ret;
+ /* If this is an internal GPHY, power it back on now, before UniMAC is
+ * brought out of reset as absolutely no UniMAC activity is allowed
+ */
+ if (phy_is_internal(priv->phydev))
+ bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
+
bcmgenet_umac_reset(priv);
ret = init_umac(priv);