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Date: Thu, 12 Feb 2009 20:16:59 -0800
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, jeff@...zik.org, gospo@...hat.com,
Alexander Duyck <alexander.h.duyck@...el.com>,
Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next PATCH 1/6] igb: misc whitespace/formatting cleanups
From: Alexander Duyck <alexander.h.duyck@...el.com>
This patch is intended to hold several whitespace, formatting, and
comment cleanups that have been found while cleaning up the igb driver.
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/igb/igb_main.c | 58 +++++++++++++++-----------------------------
1 files changed, 20 insertions(+), 38 deletions(-)
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index f8c2919..1e7678c 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1566,7 +1566,6 @@ static int igb_close(struct net_device *netdev)
*
* Return 0 on success, negative on failure
**/
-
int igb_setup_tx_resources(struct igb_adapter *adapter,
struct igb_ring *tx_ring)
{
@@ -1646,13 +1645,13 @@ static void igb_configure_tx(struct igb_adapter *adapter)
int i, j;
for (i = 0; i < adapter->num_tx_queues; i++) {
- struct igb_ring *ring = &(adapter->tx_ring[i]);
+ struct igb_ring *ring = &adapter->tx_ring[i];
j = ring->reg_idx;
wr32(E1000_TDLEN(j),
- ring->count * sizeof(struct e1000_tx_desc));
+ ring->count * sizeof(struct e1000_tx_desc));
tdba = ring->dma;
wr32(E1000_TDBAL(j),
- tdba & 0x00000000ffffffffULL);
+ tdba & 0x00000000ffffffffULL);
wr32(E1000_TDBAH(j), tdba >> 32);
ring->head = E1000_TDH(j);
@@ -1672,8 +1671,6 @@ static void igb_configure_tx(struct igb_adapter *adapter)
wr32(E1000_DCA_TXCTRL(j), txctrl);
}
-
-
/* Use the default values for the Tx Inter Packet Gap (IPG) timer */
/* Program the Transmit Control Register */
@@ -1701,7 +1698,6 @@ static void igb_configure_tx(struct igb_adapter *adapter)
*
* Returns 0 on success, negative on failure
**/
-
int igb_setup_rx_resources(struct igb_adapter *adapter,
struct igb_ring *rx_ring)
{
@@ -1788,7 +1784,7 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
* enable stripping of CRC. It's unlikely this will break BMC
* redirection as it did with e1000. Newer features require
* that the HW strips the CRC.
- */
+ */
rctl |= E1000_RCTL_SECRC;
/*
@@ -1866,14 +1862,14 @@ static void igb_configure_rx(struct igb_adapter *adapter)
/* Setup the HW Rx Head and Tail Descriptor Pointers and
* the Base and Length of the Rx Descriptor Ring */
for (i = 0; i < adapter->num_rx_queues; i++) {
- struct igb_ring *ring = &(adapter->rx_ring[i]);
+ struct igb_ring *ring = &adapter->rx_ring[i];
j = ring->reg_idx;
rdba = ring->dma;
wr32(E1000_RDBAL(j),
- rdba & 0x00000000ffffffffULL);
+ rdba & 0x00000000ffffffffULL);
wr32(E1000_RDBAH(j), rdba >> 32);
wr32(E1000_RDLEN(j),
- ring->count * sizeof(union e1000_adv_rx_desc));
+ ring->count * sizeof(union e1000_adv_rx_desc));
ring->head = E1000_RDH(j);
ring->tail = E1000_RDT(j);
@@ -2011,6 +2007,7 @@ static void igb_unmap_and_free_tx_resource(struct igb_adapter *adapter,
buffer_info->skb = NULL;
}
buffer_info->time_stamp = 0;
+ buffer_info->next_to_watch = 0;
/* buffer_info must be completely set up in the transmit path */
}
@@ -2576,15 +2573,13 @@ static void igb_set_itr(struct igb_adapter *adapter)
adapter->tx_itr,
adapter->tx_ring->total_packets,
adapter->tx_ring->total_bytes);
-
current_itr = max(adapter->rx_itr, adapter->tx_itr);
} else {
current_itr = adapter->rx_itr;
}
/* conservative mode (itr 3) eliminates the lowest_latency setting */
- if (adapter->itr_setting == 3 &&
- current_itr == lowest_latency)
+ if (adapter->itr_setting == 3 && current_itr == lowest_latency)
current_itr = low_latency;
switch (current_itr) {
@@ -2701,7 +2696,7 @@ static inline int igb_tso_adv(struct igb_adapter *adapter,
mss_l4len_idx = (skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT);
mss_l4len_idx |= (l4len << E1000_ADVTXD_L4LEN_SHIFT);
- /* Context index must be unique per ring. */
+ /* For 82575, context index must be unique per ring. */
if (adapter->flags & IGB_FLAG_NEED_CTX_IDX)
mss_l4len_idx |= tx_ring->queue_index << 4;
@@ -2785,8 +2780,6 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
return true;
}
-
-
return false;
}
@@ -2984,7 +2977,6 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
tx_flags |= IGB_TX_FLAGS_IPV4;
first = tx_ring->next_to_use;
-
tso = skb_is_gso(skb) ? igb_tso_adv(adapter, tx_ring, skb, tx_flags,
&hdr_len) : 0;
@@ -3058,8 +3050,7 @@ static void igb_reset_task(struct work_struct *work)
* Returns the address of the device statistics structure.
* The statistics are actually updated from the timer callback.
**/
-static struct net_device_stats *
-igb_get_stats(struct net_device *netdev)
+static struct net_device_stats *igb_get_stats(struct net_device *netdev)
{
struct igb_adapter *adapter = netdev_priv(netdev);
@@ -3093,6 +3084,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
msleep(1);
+
/* igb_down has a dependency on max_frame_size */
adapter->max_frame_size = max_frame;
if (netif_running(netdev))
@@ -3262,8 +3254,7 @@ void igb_update_stats(struct igb_adapter *adapter)
/* Phy Stats */
if (hw->phy.media_type == e1000_media_type_copper) {
if ((adapter->link_speed == SPEED_1000) &&
- (!igb_read_phy_reg(hw, PHY_1000T_STATUS,
- &phy_tmp))) {
+ (!igb_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
adapter->phy_stats.idle_errors += phy_tmp;
}
@@ -3275,7 +3266,6 @@ void igb_update_stats(struct igb_adapter *adapter)
adapter->stats.mgpdc += rd32(E1000_MGTPDC);
}
-
static irqreturn_t igb_msix_other(int irq, void *data)
{
struct net_device *netdev = data;
@@ -3313,6 +3303,7 @@ static irqreturn_t igb_msix_tx(int irq, void *data)
if (adapter->flags & IGB_FLAG_DCA_ENABLED)
igb_update_tx_dca(tx_ring);
#endif
+
tx_ring->total_bytes = 0;
tx_ring->total_packets = 0;
@@ -3333,13 +3324,11 @@ static void igb_write_itr(struct igb_ring *ring)
if ((ring->adapter->itr_setting & 3) && ring->set_itr) {
switch (hw->mac.type) {
case e1000_82576:
- wr32(ring->itr_register,
- ring->itr_val |
+ wr32(ring->itr_register, ring->itr_val |
0x80000000);
break;
default:
- wr32(ring->itr_register,
- ring->itr_val |
+ wr32(ring->itr_register, ring->itr_val |
(ring->itr_val << 16));
break;
}
@@ -3610,7 +3599,6 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
#endif
igb_clean_rx_irq_adv(rx_ring, &work_done, budget);
-
/* If not enough Rx work done, exit the polling mode */
if ((work_done == 0) || !netif_running(netdev)) {
napi_complete(napi);
@@ -3621,7 +3609,6 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
else
igb_update_ring_itr(rx_ring);
}
-
if (!test_bit(__IGB_DOWN, &adapter->state))
wr32(E1000_EIMS, rx_ring->eims_value);
@@ -3678,7 +3665,6 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
if (i == tx_ring->count)
i = 0;
}
-
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC_ADV(*tx_ring, eop);
}
@@ -3747,7 +3733,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
* igb_receive_skb - helper function to handle rx indications
* @ring: pointer to receive ring receving this packet
* @status: descriptor status field as written by hardware
- * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
+ * @rx_desc: receive descriptor containing vlan and type information.
* @skb: pointer to sk_buff to be indicated to stack
**/
static void igb_receive_skb(struct igb_ring *ring, u8 status,
@@ -3774,7 +3760,6 @@ static void igb_receive_skb(struct igb_ring *ring, u8 status,
}
}
-
static inline void igb_rx_checksum_adv(struct igb_adapter *adapter,
u32 status_err, struct sk_buff *skb)
{
@@ -3806,11 +3791,11 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
union e1000_adv_rx_desc *rx_desc , *next_rxd;
struct igb_buffer *buffer_info , *next_buffer;
struct sk_buff *skb;
- unsigned int i;
- u32 length, hlen, staterr;
bool cleaned = false;
int cleaned_count = 0;
unsigned int total_bytes = 0, total_packets = 0;
+ unsigned int i;
+ u32 length, hlen, staterr;
i = rx_ring->next_to_clean;
buffer_info = &rx_ring->buffer_info[i];
@@ -3858,8 +3843,7 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
if (!skb_shinfo(skb)->nr_frags) {
pci_unmap_single(pdev, buffer_info->dma,
- adapter->rx_ps_hdr_size +
- NET_IP_ALIGN,
+ adapter->rx_ps_hdr_size + NET_IP_ALIGN,
PCI_DMA_FROMDEVICE);
skb_put(skb, hlen);
}
@@ -3938,7 +3922,6 @@ next_desc:
return cleaned;
}
-
/**
* igb_alloc_rx_buffers_adv - Replace used receive buffers; packet split
* @adapter: address of board private structure
@@ -4227,7 +4210,6 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx)
return 0;
}
-
static int igb_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
--
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