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path: root/drivers/net/ethernet/sun/niu.c
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Diffstat (limited to 'drivers/net/ethernet/sun/niu.c')
-rw-r--r--drivers/net/ethernet/sun/niu.c73
1 files changed, 56 insertions, 17 deletions
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index df6d35d41b97..26119d02a94d 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -2225,7 +2225,7 @@ static int niu_link_status(struct niu *np, int *link_up_p)
static void niu_timer(struct timer_list *t)
{
- struct niu *np = from_timer(np, t, timer);
+ struct niu *np = timer_container_of(np, t, timer);
unsigned long off;
int err, link_up;
@@ -3303,7 +3303,7 @@ static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr,
addr &= PAGE_MASK;
pp = &rp->rxhash[h];
for (; (p = *pp) != NULL; pp = &niu_next_page(p)) {
- if (p->index == addr) {
+ if (p->private == addr) {
*link = pp;
goto found;
}
@@ -3318,7 +3318,7 @@ static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base)
{
unsigned int h = niu_hash_rxaddr(rp, base);
- page->index = base;
+ page->private = base;
niu_next_page(page) = rp->rxhash[h];
rp->rxhash[h] = page;
}
@@ -3336,7 +3336,7 @@ static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp,
addr = np->ops->map_page(np->device, page, 0,
PAGE_SIZE, DMA_FROM_DEVICE);
- if (!addr) {
+ if (np->ops->mapping_error(np->device, addr)) {
__free_page(page);
return -ENOMEM;
}
@@ -3400,11 +3400,11 @@ static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp)
rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
RCR_ENTRY_PKTBUFSZ_SHIFT];
- if ((page->index + PAGE_SIZE) - rcr_size == addr) {
+ if ((page->private + PAGE_SIZE) - rcr_size == addr) {
*link = niu_next_page(page);
- np->ops->unmap_page(np->device, page->index,
+ np->ops->unmap_page(np->device, page->private,
PAGE_SIZE, DMA_FROM_DEVICE);
- page->index = 0;
+ page->private = 0;
niu_next_page(page) = NULL;
__free_page(page);
rp->rbr_refill_pending++;
@@ -3469,11 +3469,11 @@ static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np,
append_size = append_size - skb->len;
niu_rx_skb_append(skb, page, off, append_size, rcr_size);
- if ((page->index + rp->rbr_block_size) - rcr_size == addr) {
+ if ((page->private + rp->rbr_block_size) - rcr_size == addr) {
*link = niu_next_page(page);
- np->ops->unmap_page(np->device, page->index,
+ np->ops->unmap_page(np->device, page->private,
PAGE_SIZE, DMA_FROM_DEVICE);
- page->index = 0;
+ page->private = 0;
niu_next_page(page) = NULL;
rp->rbr_refill_pending++;
} else
@@ -3538,11 +3538,11 @@ static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp)
page = rp->rxhash[i];
while (page) {
struct page *next = niu_next_page(page);
- u64 base = page->index;
+ u64 base = page->private;
np->ops->unmap_page(np->device, base, PAGE_SIZE,
DMA_FROM_DEVICE);
- page->index = 0;
+ page->private = 0;
niu_next_page(page) = NULL;
__free_page(page);
@@ -6086,7 +6086,7 @@ static void niu_enable_napi(struct niu *np)
int i;
for (i = 0; i < np->num_ldg; i++)
- napi_enable(&np->ldg[i].napi);
+ napi_enable_locked(&np->ldg[i].napi);
}
static void niu_disable_napi(struct niu *np)
@@ -6116,7 +6116,9 @@ static int niu_open(struct net_device *dev)
if (err)
goto out_free_channels;
+ netdev_lock(dev);
niu_enable_napi(np);
+ netdev_unlock(dev);
spin_lock_irq(&np->lock);
@@ -6163,7 +6165,7 @@ static void niu_full_shutdown(struct niu *np, struct net_device *dev)
niu_disable_napi(np);
netif_tx_stop_all_queues(dev);
- del_timer_sync(&np->timer);
+ timer_delete_sync(&np->timer);
spin_lock_irq(&np->lock);
@@ -6460,7 +6462,7 @@ static void niu_reset_buffers(struct niu *np)
page = rp->rxhash[j];
while (page) {
struct page *next = niu_next_page(page);
- u64 base = page->index;
+ u64 base = page->private;
base = base >> RBR_DESCR_ADDR_SHIFT;
rp->rbr[k++] = cpu_to_le32(base);
page = next;
@@ -6509,7 +6511,7 @@ static void niu_reset_task(struct work_struct *work)
spin_unlock_irqrestore(&np->lock, flags);
- del_timer_sync(&np->timer);
+ timer_delete_sync(&np->timer);
niu_netif_stop(np);
@@ -6521,6 +6523,7 @@ static void niu_reset_task(struct work_struct *work)
niu_reset_buffers(np);
+ netdev_lock(np->dev);
spin_lock_irqsave(&np->lock, flags);
err = niu_init_hw(np);
@@ -6531,6 +6534,7 @@ static void niu_reset_task(struct work_struct *work)
}
spin_unlock_irqrestore(&np->lock, flags);
+ netdev_unlock(np->dev);
}
static void niu_tx_timeout(struct net_device *dev, unsigned int txqueue)
@@ -6672,6 +6676,8 @@ static netdev_tx_t niu_start_xmit(struct sk_buff *skb,
len = skb_headlen(skb);
mapping = np->ops->map_single(np->device, skb->data,
len, DMA_TO_DEVICE);
+ if (np->ops->mapping_error(np->device, mapping))
+ goto out_drop;
prod = rp->prod;
@@ -6713,6 +6719,8 @@ static netdev_tx_t niu_start_xmit(struct sk_buff *skb,
mapping = np->ops->map_page(np->device, skb_frag_page(frag),
skb_frag_off(frag), len,
DMA_TO_DEVICE);
+ if (np->ops->mapping_error(np->device, mapping))
+ goto out_unmap;
rp->tx_buffs[prod].skb = NULL;
rp->tx_buffs[prod].mapping = mapping;
@@ -6737,6 +6745,19 @@ static netdev_tx_t niu_start_xmit(struct sk_buff *skb,
out:
return NETDEV_TX_OK;
+out_unmap:
+ while (i--) {
+ const skb_frag_t *frag;
+
+ prod = PREVIOUS_TX(rp, prod);
+ frag = &skb_shinfo(skb)->frags[i];
+ np->ops->unmap_page(np->device, rp->tx_buffs[prod].mapping,
+ skb_frag_size(frag), DMA_TO_DEVICE);
+ }
+
+ np->ops->unmap_single(np->device, rp->tx_buffs[rp->prod].mapping,
+ skb_headlen(skb), DMA_TO_DEVICE);
+
out_drop:
rp->tx_errors++;
kfree_skb(skb);
@@ -6761,7 +6782,9 @@ static int niu_change_mtu(struct net_device *dev, int new_mtu)
niu_free_channels(np);
+ netdev_lock(dev);
niu_enable_napi(np);
+ netdev_unlock(dev);
err = niu_alloc_channels(np);
if (err)
@@ -9058,6 +9081,8 @@ static void niu_try_msix(struct niu *np, u8 *ldg_num_map)
msi_vec[i].entry = i;
}
+ pdev->dev_flags |= PCI_DEV_FLAGS_MSIX_TOUCH_ENTRY_DATA_FIRST;
+
num_irqs = pci_enable_msix_range(pdev, msi_vec, 1, num_irqs);
if (num_irqs < 0) {
np->flags &= ~NIU_FLAGS_MSIX;
@@ -9636,6 +9661,11 @@ static void niu_pci_unmap_single(struct device *dev, u64 dma_address,
dma_unmap_single(dev, dma_address, size, direction);
}
+static int niu_pci_mapping_error(struct device *dev, u64 addr)
+{
+ return dma_mapping_error(dev, addr);
+}
+
static const struct niu_ops niu_pci_ops = {
.alloc_coherent = niu_pci_alloc_coherent,
.free_coherent = niu_pci_free_coherent,
@@ -9643,6 +9673,7 @@ static const struct niu_ops niu_pci_ops = {
.unmap_page = niu_pci_unmap_page,
.map_single = niu_pci_map_single,
.unmap_single = niu_pci_unmap_single,
+ .mapping_error = niu_pci_mapping_error,
};
static void niu_driver_version(void)
@@ -9908,7 +9939,7 @@ static int __maybe_unused niu_suspend(struct device *dev_d)
flush_work(&np->reset_task);
niu_netif_stop(np);
- del_timer_sync(&np->timer);
+ timer_delete_sync(&np->timer);
spin_lock_irqsave(&np->lock, flags);
niu_enable_interrupts(np, 0);
@@ -9937,6 +9968,7 @@ static int __maybe_unused niu_resume(struct device *dev_d)
spin_lock_irqsave(&np->lock, flags);
+ netdev_lock(dev);
err = niu_init_hw(np);
if (!err) {
np->timer.expires = jiffies + HZ;
@@ -9945,6 +9977,7 @@ static int __maybe_unused niu_resume(struct device *dev_d)
}
spin_unlock_irqrestore(&np->lock, flags);
+ netdev_unlock(dev);
return err;
}
@@ -10009,6 +10042,11 @@ static void niu_phys_unmap_single(struct device *dev, u64 dma_address,
/* Nothing to do. */
}
+static int niu_phys_mapping_error(struct device *dev, u64 dma_address)
+{
+ return false;
+}
+
static const struct niu_ops niu_phys_ops = {
.alloc_coherent = niu_phys_alloc_coherent,
.free_coherent = niu_phys_free_coherent,
@@ -10016,6 +10054,7 @@ static const struct niu_ops niu_phys_ops = {
.unmap_page = niu_phys_unmap_page,
.map_single = niu_phys_map_single,
.unmap_single = niu_phys_unmap_single,
+ .mapping_error = niu_phys_mapping_error,
};
static int niu_of_probe(struct platform_device *op)
generated by cgit v1.2.3 (git 2.39.0) at 2025-07-12 14:25:17 +0300