gianfar: Add per queue structure support
This patch introduces per tx and per rx queue structures.
Earlier the members of these structures were inside the
gfar_private structure.
Moving forward if we want to support multiple queues, we need
to refactor the gfar_private structure so that introduction of
multiple queues is easier.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/gianfar_sysfs.c b/drivers/net/gianfar_sysfs.c
index dd26da7..9c664f8 100644
--- a/drivers/net/gianfar_sysfs.c
+++ b/drivers/net/gianfar_sysfs.c
@@ -8,8 +8,9 @@
*
* Author: Andy Fleming
* Maintainer: Kumar Gala (galak@kernel.crashing.org)
+ * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
*
- * Copyright (c) 2002-2005 Freescale Semiconductor, Inc.
+ * Copyright 2002-2009 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -49,6 +50,7 @@
const char *buf, size_t count)
{
struct gfar_private *priv = netdev_priv(to_net_dev(dev));
+ struct gfar_priv_rx_q *rx_queue = NULL;
int new_setting = 0;
u32 temp;
unsigned long flags;
@@ -56,6 +58,8 @@
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BD_STASHING))
return count;
+ rx_queue = priv->rx_queue;
+
/* Find out the new setting */
if (!strncmp("on", buf, count - 1) || !strncmp("1", buf, count - 1))
new_setting = 1;
@@ -65,7 +69,7 @@
else
return count;
- spin_lock_irqsave(&priv->rxlock, flags);
+ spin_lock_irqsave(&rx_queue->rxlock, flags);
/* Set the new stashing value */
priv->bd_stash_en = new_setting;
@@ -79,7 +83,7 @@
gfar_write(&priv->regs->attr, temp);
- spin_unlock_irqrestore(&priv->rxlock, flags);
+ spin_unlock_irqrestore(&rx_queue->rxlock, flags);
return count;
}
@@ -99,6 +103,7 @@
const char *buf, size_t count)
{
struct gfar_private *priv = netdev_priv(to_net_dev(dev));
+ struct gfar_priv_rx_q *rx_queue = NULL;
unsigned int length = simple_strtoul(buf, NULL, 0);
u32 temp;
unsigned long flags;
@@ -106,7 +111,9 @@
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BUF_STASHING))
return count;
- spin_lock_irqsave(&priv->rxlock, flags);
+ rx_queue = priv->rx_queue;
+
+ spin_lock_irqsave(&rx_queue->rxlock, flags);
if (length > priv->rx_buffer_size)
goto out;
@@ -131,7 +138,7 @@
gfar_write(&priv->regs->attr, temp);
out:
- spin_unlock_irqrestore(&priv->rxlock, flags);
+ spin_unlock_irqrestore(&rx_queue->rxlock, flags);
return count;
}
@@ -154,6 +161,7 @@
const char *buf, size_t count)
{
struct gfar_private *priv = netdev_priv(to_net_dev(dev));
+ struct gfar_priv_rx_q *rx_queue = NULL;
unsigned short index = simple_strtoul(buf, NULL, 0);
u32 temp;
unsigned long flags;
@@ -161,7 +169,9 @@
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BUF_STASHING))
return count;
- spin_lock_irqsave(&priv->rxlock, flags);
+ rx_queue = priv->rx_queue;
+
+ spin_lock_irqsave(&rx_queue->rxlock, flags);
if (index > priv->rx_stash_size)
goto out;
@@ -176,7 +186,7 @@
gfar_write(&priv->regs->attreli, flags);
out:
- spin_unlock_irqrestore(&priv->rxlock, flags);
+ spin_unlock_irqrestore(&rx_queue->rxlock, flags);
return count;
}
@@ -198,6 +208,7 @@
const char *buf, size_t count)
{
struct gfar_private *priv = netdev_priv(to_net_dev(dev));
+ struct gfar_priv_tx_q *tx_queue = NULL;
unsigned int length = simple_strtoul(buf, NULL, 0);
u32 temp;
unsigned long flags;
@@ -205,7 +216,9 @@
if (length > GFAR_MAX_FIFO_THRESHOLD)
return count;
- spin_lock_irqsave(&priv->txlock, flags);
+ tx_queue = priv->tx_queue;
+
+ spin_lock_irqsave(&tx_queue->txlock, flags);
priv->fifo_threshold = length;
@@ -214,7 +227,7 @@
temp |= length;
gfar_write(&priv->regs->fifo_tx_thr, temp);
- spin_unlock_irqrestore(&priv->txlock, flags);
+ spin_unlock_irqrestore(&tx_queue->txlock, flags);
return count;
}
@@ -235,6 +248,7 @@
const char *buf, size_t count)
{
struct gfar_private *priv = netdev_priv(to_net_dev(dev));
+ struct gfar_priv_tx_q *tx_queue = NULL;
unsigned int num = simple_strtoul(buf, NULL, 0);
u32 temp;
unsigned long flags;
@@ -242,7 +256,8 @@
if (num > GFAR_MAX_FIFO_STARVE)
return count;
- spin_lock_irqsave(&priv->txlock, flags);
+ tx_queue = priv->tx_queue;
+ spin_lock_irqsave(&tx_queue->txlock, flags);
priv->fifo_starve = num;
@@ -251,7 +266,7 @@
temp |= num;
gfar_write(&priv->regs->fifo_tx_starve, temp);
- spin_unlock_irqrestore(&priv->txlock, flags);
+ spin_unlock_irqrestore(&tx_queue->txlock, flags);
return count;
}
@@ -273,6 +288,7 @@
const char *buf, size_t count)
{
struct gfar_private *priv = netdev_priv(to_net_dev(dev));
+ struct gfar_priv_tx_q *tx_queue = NULL;
unsigned int num = simple_strtoul(buf, NULL, 0);
u32 temp;
unsigned long flags;
@@ -280,7 +296,8 @@
if (num > GFAR_MAX_FIFO_STARVE_OFF)
return count;
- spin_lock_irqsave(&priv->txlock, flags);
+ tx_queue = priv->tx_queue;
+ spin_lock_irqsave(&tx_queue->txlock, flags);
priv->fifo_starve_off = num;
@@ -289,7 +306,7 @@
temp |= num;
gfar_write(&priv->regs->fifo_tx_starve_shutoff, temp);
- spin_unlock_irqrestore(&priv->txlock, flags);
+ spin_unlock_irqrestore(&tx_queue->txlock, flags);
return count;
}