module_param(phyaddr, int, 0444);
MODULE_PARM_DESC(phyaddr, "Physical device address");
-#define STMMAC_TX_THRESH (DMA_TX_SIZE / 4)
-#define STMMAC_RX_THRESH (DMA_RX_SIZE / 4)
+#define STMMAC_TX_THRESH(x) ((x)->dma_tx_size / 4)
+#define STMMAC_RX_THRESH(x) ((x)->dma_rx_size / 4)
static int flow_ctrl = FLOW_AUTO;
module_param(flow_ctrl, int, 0644);
if (tx_q->dirty_tx > tx_q->cur_tx)
avail = tx_q->dirty_tx - tx_q->cur_tx - 1;
else
- avail = DMA_TX_SIZE - tx_q->cur_tx + tx_q->dirty_tx - 1;
+ avail = priv->dma_tx_size - tx_q->cur_tx + tx_q->dirty_tx - 1;
return avail;
}
if (rx_q->dirty_rx <= rx_q->cur_rx)
dirty = rx_q->cur_rx - rx_q->dirty_rx;
else
- dirty = DMA_RX_SIZE - rx_q->dirty_rx + rx_q->cur_rx;
+ dirty = priv->dma_rx_size - rx_q->dirty_rx + rx_q->cur_rx;
return dirty;
}
head_rx = (void *)rx_q->dma_rx;
/* Display RX ring */
- stmmac_display_ring(priv, head_rx, DMA_RX_SIZE, true);
+ stmmac_display_ring(priv, head_rx, priv->dma_rx_size, true);
}
}
else
head_tx = (void *)tx_q->dma_tx;
- stmmac_display_ring(priv, head_tx, DMA_TX_SIZE, false);
+ stmmac_display_ring(priv, head_tx, priv->dma_tx_size, false);
}
}
int i;
/* Clear the RX descriptors */
- for (i = 0; i < DMA_RX_SIZE; i++)
+ for (i = 0; i < priv->dma_rx_size; i++)
if (priv->extend_desc)
stmmac_init_rx_desc(priv, &rx_q->dma_erx[i].basic,
priv->use_riwt, priv->mode,
- (i == DMA_RX_SIZE - 1),
+ (i == priv->dma_rx_size - 1),
priv->dma_buf_sz);
else
stmmac_init_rx_desc(priv, &rx_q->dma_rx[i],
priv->use_riwt, priv->mode,
- (i == DMA_RX_SIZE - 1),
+ (i == priv->dma_rx_size - 1),
priv->dma_buf_sz);
}
int i;
/* Clear the TX descriptors */
- for (i = 0; i < DMA_TX_SIZE; i++) {
- int last = (i == (DMA_TX_SIZE - 1));
+ for (i = 0; i < priv->dma_tx_size; i++) {
+ int last = (i == (priv->dma_tx_size - 1));
struct dma_desc *p;
if (priv->extend_desc)
stmmac_clear_rx_descriptors(priv, queue);
- for (i = 0; i < DMA_RX_SIZE; i++) {
+ for (i = 0; i < priv->dma_rx_size; i++) {
struct dma_desc *p;
if (priv->extend_desc)
}
rx_q->cur_rx = 0;
- rx_q->dirty_rx = (unsigned int)(i - DMA_RX_SIZE);
+ rx_q->dirty_rx = (unsigned int)(i - priv->dma_rx_size);
/* Setup the chained descriptor addresses */
if (priv->mode == STMMAC_CHAIN_MODE) {
if (priv->extend_desc)
stmmac_mode_init(priv, rx_q->dma_erx,
- rx_q->dma_rx_phy, DMA_RX_SIZE, 1);
+ rx_q->dma_rx_phy,
+ priv->dma_rx_size, 1);
else
stmmac_mode_init(priv, rx_q->dma_rx,
- rx_q->dma_rx_phy, DMA_RX_SIZE, 0);
+ rx_q->dma_rx_phy,
+ priv->dma_rx_size, 0);
}
}
if (queue == 0)
break;
- i = DMA_RX_SIZE;
+ i = priv->dma_rx_size;
queue--;
}
if (priv->mode == STMMAC_CHAIN_MODE) {
if (priv->extend_desc)
stmmac_mode_init(priv, tx_q->dma_etx,
- tx_q->dma_tx_phy, DMA_TX_SIZE, 1);
+ tx_q->dma_tx_phy,
+ priv->dma_tx_size, 1);
else if (!(tx_q->tbs & STMMAC_TBS_AVAIL))
stmmac_mode_init(priv, tx_q->dma_tx,
- tx_q->dma_tx_phy, DMA_TX_SIZE, 0);
+ tx_q->dma_tx_phy,
+ priv->dma_tx_size, 0);
}
- for (i = 0; i < DMA_TX_SIZE; i++) {
+ for (i = 0; i < priv->dma_tx_size; i++) {
struct dma_desc *p;
if (priv->extend_desc)
p = &((tx_q->dma_etx + i)->basic);
{
int i;
- for (i = 0; i < DMA_RX_SIZE; i++)
+ for (i = 0; i < priv->dma_rx_size; i++)
stmmac_free_rx_buffer(priv, queue, i);
}
{
int i;
- for (i = 0; i < DMA_TX_SIZE; i++)
+ for (i = 0; i < priv->dma_tx_size; i++)
stmmac_free_tx_buffer(priv, queue, i);
}
/* Free DMA regions of consistent memory previously allocated */
if (!priv->extend_desc)
- dma_free_coherent(priv->device,
- DMA_RX_SIZE * sizeof(struct dma_desc),
+ dma_free_coherent(priv->device, priv->dma_rx_size *
+ sizeof(struct dma_desc),
rx_q->dma_rx, rx_q->dma_rx_phy);
else
- dma_free_coherent(priv->device, DMA_RX_SIZE *
+ dma_free_coherent(priv->device, priv->dma_rx_size *
sizeof(struct dma_extended_desc),
rx_q->dma_erx, rx_q->dma_rx_phy);
addr = tx_q->dma_tx;
}
- size *= DMA_TX_SIZE;
+ size *= priv->dma_tx_size;
dma_free_coherent(priv->device, size, addr, tx_q->dma_tx_phy);
rx_q->priv_data = priv;
pp_params.flags = PP_FLAG_DMA_MAP;
- pp_params.pool_size = DMA_RX_SIZE;
+ pp_params.pool_size = priv->dma_rx_size;
num_pages = DIV_ROUND_UP(priv->dma_buf_sz, PAGE_SIZE);
pp_params.order = ilog2(num_pages);
pp_params.nid = dev_to_node(priv->device);
goto err_dma;
}
- rx_q->buf_pool = kcalloc(DMA_RX_SIZE, sizeof(*rx_q->buf_pool),
+ rx_q->buf_pool = kcalloc(priv->dma_rx_size,
+ sizeof(*rx_q->buf_pool),
GFP_KERNEL);
if (!rx_q->buf_pool)
goto err_dma;
if (priv->extend_desc) {
rx_q->dma_erx = dma_alloc_coherent(priv->device,
- DMA_RX_SIZE * sizeof(struct dma_extended_desc),
+ priv->dma_rx_size *
+ sizeof(struct dma_extended_desc),
&rx_q->dma_rx_phy,
GFP_KERNEL);
if (!rx_q->dma_erx)
} else {
rx_q->dma_rx = dma_alloc_coherent(priv->device,
- DMA_RX_SIZE * sizeof(struct dma_desc),
+ priv->dma_rx_size *
+ sizeof(struct dma_desc),
&rx_q->dma_rx_phy,
GFP_KERNEL);
if (!rx_q->dma_rx)
tx_q->queue_index = queue;
tx_q->priv_data = priv;
- tx_q->tx_skbuff_dma = kcalloc(DMA_TX_SIZE,
+ tx_q->tx_skbuff_dma = kcalloc(priv->dma_tx_size,
sizeof(*tx_q->tx_skbuff_dma),
GFP_KERNEL);
if (!tx_q->tx_skbuff_dma)
goto err_dma;
- tx_q->tx_skbuff = kcalloc(DMA_TX_SIZE,
+ tx_q->tx_skbuff = kcalloc(priv->dma_tx_size,
sizeof(struct sk_buff *),
GFP_KERNEL);
if (!tx_q->tx_skbuff)
else
size = sizeof(struct dma_desc);
- size *= DMA_TX_SIZE;
+ size *= priv->dma_tx_size;
addr = dma_alloc_coherent(priv->device, size,
&tx_q->dma_tx_phy, GFP_KERNEL);
stmmac_release_tx_desc(priv, p, priv->mode);
- entry = STMMAC_GET_ENTRY(entry, DMA_TX_SIZE);
+ entry = STMMAC_GET_ENTRY(entry, priv->dma_tx_size);
}
tx_q->dirty_tx = entry;
if (unlikely(netif_tx_queue_stopped(netdev_get_tx_queue(priv->dev,
queue))) &&
- stmmac_tx_avail(priv, queue) > STMMAC_TX_THRESH) {
+ stmmac_tx_avail(priv, queue) > STMMAC_TX_THRESH(priv)) {
netif_dbg(priv, tx_done, priv->dev,
"%s: restart transmit\n", __func__);
rx_q->dma_rx_phy, chan);
rx_q->rx_tail_addr = rx_q->dma_rx_phy +
- (DMA_RX_SIZE * sizeof(struct dma_desc));
+ (priv->dma_rx_size *
+ sizeof(struct dma_desc));
stmmac_set_rx_tail_ptr(priv, priv->ioaddr,
rx_q->rx_tail_addr, chan);
}
/* set TX ring length */
for (chan = 0; chan < tx_channels_count; chan++)
stmmac_set_tx_ring_len(priv, priv->ioaddr,
- (DMA_TX_SIZE - 1), chan);
+ (priv->dma_tx_size - 1), chan);
/* set RX ring length */
for (chan = 0; chan < rx_channels_count; chan++)
stmmac_set_rx_ring_len(priv, priv->ioaddr,
- (DMA_RX_SIZE - 1), chan);
+ (priv->dma_rx_size - 1), chan);
}
/**
priv->rx_copybreak = STMMAC_RX_COPYBREAK;
+ if (!priv->dma_tx_size)
+ priv->dma_tx_size = DMA_DEFAULT_TX_SIZE;
+ if (!priv->dma_rx_size)
+ priv->dma_rx_size = DMA_DEFAULT_RX_SIZE;
+
/* Earlier check for TBS */
for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) {
struct stmmac_tx_queue *tx_q = &priv->tx_queue[chan];
return false;
stmmac_set_tx_owner(priv, p);
- tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, DMA_TX_SIZE);
+ tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, priv->dma_tx_size);
return true;
}
while (tmp_len > 0) {
dma_addr_t curr_addr;
- tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, DMA_TX_SIZE);
+ tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx,
+ priv->dma_tx_size);
WARN_ON(tx_q->tx_skbuff[tx_q->cur_tx]);
if (tx_q->tbs & STMMAC_TBS_AVAIL)
stmmac_set_mss(priv, mss_desc, mss);
tx_q->mss = mss;
- tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, DMA_TX_SIZE);
+ tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx,
+ priv->dma_tx_size);
WARN_ON(tx_q->tx_skbuff[tx_q->cur_tx]);
}
* ndo_start_xmit will fill this descriptor the next time it's
* called and stmmac_tx_clean may clean up to this descriptor.
*/
- tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, DMA_TX_SIZE);
+ tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, priv->dma_tx_size);
if (unlikely(stmmac_tx_avail(priv, queue) <= (MAX_SKB_FRAGS + 1))) {
netif_dbg(priv, hw, priv->dev, "%s: stop transmitted packets\n",
int len = skb_frag_size(frag);
bool last_segment = (i == (nfrags - 1));
- entry = STMMAC_GET_ENTRY(entry, DMA_TX_SIZE);
+ entry = STMMAC_GET_ENTRY(entry, priv->dma_tx_size);
WARN_ON(tx_q->tx_skbuff[entry]);
if (likely(priv->extend_desc))
* ndo_start_xmit will fill this descriptor the next time it's
* called and stmmac_tx_clean may clean up to this descriptor.
*/
- entry = STMMAC_GET_ENTRY(entry, DMA_TX_SIZE);
+ entry = STMMAC_GET_ENTRY(entry, priv->dma_tx_size);
tx_q->cur_tx = entry;
if (netif_msg_pktdata(priv)) {
dma_wmb();
stmmac_set_rx_owner(priv, p, use_rx_wd);
- entry = STMMAC_GET_ENTRY(entry, DMA_RX_SIZE);
+ entry = STMMAC_GET_ENTRY(entry, priv->dma_rx_size);
}
rx_q->dirty_rx = entry;
rx_q->rx_tail_addr = rx_q->dma_rx_phy +
else
rx_head = (void *)rx_q->dma_rx;
- stmmac_display_ring(priv, rx_head, DMA_RX_SIZE, true);
+ stmmac_display_ring(priv, rx_head, priv->dma_rx_size, true);
}
while (count < limit) {
unsigned int buf1_len = 0, buf2_len = 0;
if (unlikely(status & dma_own))
break;
- rx_q->cur_rx = STMMAC_GET_ENTRY(rx_q->cur_rx, DMA_RX_SIZE);
+ rx_q->cur_rx = STMMAC_GET_ENTRY(rx_q->cur_rx,
+ priv->dma_rx_size);
next_entry = rx_q->cur_rx;
if (priv->extend_desc)
priv->xstats.napi_poll++;
- work_done = stmmac_tx_clean(priv, DMA_TX_SIZE, chan);
+ work_done = stmmac_tx_clean(priv, priv->dma_tx_size, chan);
work_done = min(work_done, budget);
if (work_done < budget && napi_complete_done(napi, work_done)) {
if (priv->extend_desc) {
seq_printf(seq, "Extended descriptor ring:\n");
sysfs_display_ring((void *)rx_q->dma_erx,
- DMA_RX_SIZE, 1, seq);
+ priv->dma_rx_size, 1, seq);
} else {
seq_printf(seq, "Descriptor ring:\n");
sysfs_display_ring((void *)rx_q->dma_rx,
- DMA_RX_SIZE, 0, seq);
+ priv->dma_rx_size, 0, seq);
}
}
if (priv->extend_desc) {
seq_printf(seq, "Extended descriptor ring:\n");
sysfs_display_ring((void *)tx_q->dma_etx,
- DMA_TX_SIZE, 1, seq);
+ priv->dma_tx_size, 1, seq);
} else if (!(tx_q->tbs & STMMAC_TBS_AVAIL)) {
seq_printf(seq, "Descriptor ring:\n");
sysfs_display_ring((void *)tx_q->dma_tx,
- DMA_TX_SIZE, 0, seq);
+ priv->dma_tx_size, 0, seq);
}
}
return ret;
}
+int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size)
+{
+ struct stmmac_priv *priv = netdev_priv(dev);
+ int ret = 0;
+
+ if (netif_running(dev))
+ stmmac_release(dev);
+
+ priv->dma_rx_size = rx_size;
+ priv->dma_tx_size = tx_size;
+
+ if (netif_running(dev))
+ ret = stmmac_open(dev);
+
+ return ret;
+}
+
/**
* stmmac_dvr_probe
* @device: device pointer