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path: root/drivers/net/qlcnic/qlcnic_hw.c
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Diffstat (limited to 'drivers/net/qlcnic/qlcnic_hw.c')
-rw-r--r--drivers/net/qlcnic/qlcnic_hw.c62
1 files changed, 37 insertions, 25 deletions
diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c
index 0c2e1f08f459..e08c8b0556a4 100644
--- a/drivers/net/qlcnic/qlcnic_hw.c
+++ b/drivers/net/qlcnic/qlcnic_hw.c
@@ -327,7 +327,7 @@ qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
i = 0;
- if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+ if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
return -EIO;
tx_ring = adapter->tx_ring;
@@ -338,9 +338,15 @@ qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
if (nr_desc >= qlcnic_tx_avail(tx_ring)) {
netif_tx_stop_queue(tx_ring->txq);
- __netif_tx_unlock_bh(tx_ring->txq);
- adapter->stats.xmit_off++;
- return -EBUSY;
+ smp_mb();
+ if (qlcnic_tx_avail(tx_ring) > nr_desc) {
+ if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
+ netif_tx_wake_queue(tx_ring->txq);
+ } else {
+ adapter->stats.xmit_off++;
+ __netif_tx_unlock_bh(tx_ring->txq);
+ return -EBUSY;
+ }
}
do {
@@ -407,10 +413,15 @@ static int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, u8 *addr)
return -ENOMEM;
}
memcpy(cur->mac_addr, addr, ETH_ALEN);
- list_add_tail(&cur->list, &adapter->mac_list);
- return qlcnic_sre_macaddr_change(adapter,
- cur->mac_addr, QLCNIC_MAC_ADD);
+ if (qlcnic_sre_macaddr_change(adapter,
+ cur->mac_addr, QLCNIC_MAC_ADD)) {
+ kfree(cur);
+ return -EIO;
+ }
+
+ list_add_tail(&cur->list, &adapter->mac_list);
+ return 0;
}
void qlcnic_set_multi(struct net_device *netdev)
@@ -420,7 +431,7 @@ void qlcnic_set_multi(struct net_device *netdev)
u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
u32 mode = VPORT_MISS_MODE_DROP;
- if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+ if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
return;
qlcnic_nic_add_mac(adapter, adapter->mac_addr);
@@ -538,7 +549,7 @@ int qlcnic_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
return rv;
}
-int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, int enable)
+int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
{
struct qlcnic_nic_req req;
u64 word;
@@ -704,21 +715,15 @@ int qlcnic_change_mtu(struct net_device *netdev, int mtu)
return rc;
}
-int qlcnic_get_mac_addr(struct qlcnic_adapter *adapter, u64 *mac)
+int qlcnic_get_mac_addr(struct qlcnic_adapter *adapter, u8 *mac)
{
- u32 crbaddr, mac_hi, mac_lo;
+ u32 crbaddr;
int pci_func = adapter->ahw.pci_func;
crbaddr = CRB_MAC_BLOCK_START +
(4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
- mac_lo = QLCRD32(adapter, crbaddr);
- mac_hi = QLCRD32(adapter, crbaddr+4);
-
- if (pci_func & 1)
- *mac = le64_to_cpu((mac_lo >> 16) | ((u64)mac_hi << 16));
- else
- *mac = le64_to_cpu((u64)mac_lo | ((u64)mac_hi << 32));
+ qlcnic_fetch_mac(adapter, crbaddr, crbaddr+4, pci_func & 1, mac);
return 0;
}
@@ -766,7 +771,7 @@ qlcnic_pci_get_crb_addr_2M(struct qlcnic_adapter *adapter,
* Out: 'off' is 2M pci map addr
* side effect: lock crb window
*/
-static void
+static int
qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
{
u32 window;
@@ -775,6 +780,10 @@ qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
off -= QLCNIC_PCI_CRBSPACE;
window = CRB_HI(off);
+ if (window == 0) {
+ dev_err(&adapter->pdev->dev, "Invalid offset 0x%lx\n", off);
+ return -EIO;
+ }
writel(window, addr);
if (readl(addr) != window) {
@@ -782,7 +791,9 @@ qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
dev_warn(&adapter->pdev->dev,
"failed to set CRB window to %d off 0x%lx\n",
window, off);
+ return -EIO;
}
+ return 0;
}
int
@@ -803,11 +814,12 @@ qlcnic_hw_write_wx_2M(struct qlcnic_adapter *adapter, ulong off, u32 data)
/* indirect access */
write_lock_irqsave(&adapter->ahw.crb_lock, flags);
crb_win_lock(adapter);
- qlcnic_pci_set_crbwindow_2M(adapter, off);
- writel(data, addr);
+ rv = qlcnic_pci_set_crbwindow_2M(adapter, off);
+ if (!rv)
+ writel(data, addr);
crb_win_unlock(adapter);
write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
- return 0;
+ return rv;
}
dev_err(&adapter->pdev->dev,
@@ -821,7 +833,7 @@ qlcnic_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off)
{
unsigned long flags;
int rv;
- u32 data;
+ u32 data = -1;
void __iomem *addr = NULL;
rv = qlcnic_pci_get_crb_addr_2M(adapter, off, &addr);
@@ -833,8 +845,8 @@ qlcnic_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off)
/* indirect access */
write_lock_irqsave(&adapter->ahw.crb_lock, flags);
crb_win_lock(adapter);
- qlcnic_pci_set_crbwindow_2M(adapter, off);
- data = readl(addr);
+ if (!qlcnic_pci_set_crbwindow_2M(adapter, off))
+ data = readl(addr);
crb_win_unlock(adapter);
write_unlock_irqrestore(&adapter->ahw.crb_lock, flags);
return data;