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IXP4xx: move common debugging from network drivers to QMGR module.

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Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
This commit is contained in:
Krzysztof Hałasa 2008-12-22 00:26:38 +01:00
parent 9251ce959c
commit e6da96ace8
4 changed files with 85 additions and 100 deletions
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35
arch/arm/mach-ixp4xx/include/mach/qmgr.h
View File

@ -12,6 +12,8 @@
#include <linux/io.h>
#include <linux/kernel.h>
#define DEBUG_QMGR 0
#define HALF_QUEUES 32
#define QUEUES 64 /* only 32 lower queues currently supported */
#define MAX_QUEUE_LENGTH 4 /* in dwords */
@ -61,22 +63,51 @@ void qmgr_enable_irq(unsigned int queue);
void qmgr_disable_irq(unsigned int queue);
/* request_ and release_queue() must be called from non-IRQ context */
#if DEBUG_QMGR
extern char qmgr_queue_descs[QUEUES][32];
int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
unsigned int nearly_empty_watermark,
unsigned int nearly_full_watermark);
unsigned int nearly_full_watermark,
const char *desc_format, const char* name);
#else
int __qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
unsigned int nearly_empty_watermark,
unsigned int nearly_full_watermark);
#define qmgr_request_queue(queue, len, nearly_empty_watermark, \
nearly_full_watermark, desc_format, name) \
__qmgr_request_queue(queue, len, nearly_empty_watermark, \
nearly_full_watermark)
#endif
void qmgr_release_queue(unsigned int queue);
static inline void qmgr_put_entry(unsigned int queue, u32 val)
{
extern struct qmgr_regs __iomem *qmgr_regs;
#if DEBUG_QMGR
BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */
printk(KERN_DEBUG "Queue %s(%i) put %X\n",
qmgr_queue_descs[queue], queue, val);
#endif
__raw_writel(val, &qmgr_regs->acc[queue][0]);
}
static inline u32 qmgr_get_entry(unsigned int queue)
{
u32 val;
extern struct qmgr_regs __iomem *qmgr_regs;
return __raw_readl(&qmgr_regs->acc[queue][0]);
val = __raw_readl(&qmgr_regs->acc[queue][0]);
#if DEBUG_QMGR
BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */
printk(KERN_DEBUG "Queue %s(%i) get %X\n",
qmgr_queue_descs[queue], queue, val);
#endif
return val;
}
static inline int qmgr_get_stat1(unsigned int queue)

41
arch/arm/mach-ixp4xx/ixp4xx_qmgr.c
View File

@ -14,8 +14,6 @@
#include <linux/module.h>
#include <mach/qmgr.h>
#define DEBUG 0
struct qmgr_regs __iomem *qmgr_regs;
static struct resource *mem_res;
static spinlock_t qmgr_lock;
@ -23,6 +21,10 @@ static u32 used_sram_bitmap[4]; /* 128 16-dword pages */
static void (*irq_handlers[HALF_QUEUES])(void *pdev);
static void *irq_pdevs[HALF_QUEUES];
#if DEBUG_QMGR
char qmgr_queue_descs[QUEUES][32];
#endif
void qmgr_set_irq(unsigned int queue, int src,
void (*handler)(void *pdev), void *pdev)
{
@ -82,9 +84,16 @@ static inline void shift_mask(u32 *mask)
mask[0] <<= 1;
}
#if DEBUG_QMGR
int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
unsigned int nearly_empty_watermark,
unsigned int nearly_full_watermark)
unsigned int nearly_full_watermark,
const char *desc_format, const char* name)
#else
int __qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
unsigned int nearly_empty_watermark,
unsigned int nearly_full_watermark)
#endif
{
u32 cfg, addr = 0, mask[4]; /* in 16-dwords */
int err;
@ -152,12 +161,13 @@ int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
used_sram_bitmap[2] |= mask[2];
used_sram_bitmap[3] |= mask[3];
__raw_writel(cfg | (addr << 14), &qmgr_regs->sram[queue]);
spin_unlock_irq(&qmgr_lock);
#if DEBUG
printk(KERN_DEBUG "qmgr: requested queue %i, addr = 0x%02X\n",
queue, addr);
#if DEBUG_QMGR
snprintf(qmgr_queue_descs[queue], sizeof(qmgr_queue_descs[0]),
desc_format, name);
printk(KERN_DEBUG "qmgr: requested queue %s(%i) addr = 0x%02X\n",
qmgr_queue_descs[queue], queue, addr);
#endif
spin_unlock_irq(&qmgr_lock);
return 0;
err:
@ -190,6 +200,11 @@ void qmgr_release_queue(unsigned int queue)
while (addr--)
shift_mask(mask);
#if DEBUG_QMGR
printk(KERN_DEBUG "qmgr: releasing queue %s(%i)\n",
qmgr_queue_descs[queue], queue);
qmgr_queue_descs[queue][0] = '\x0';
#endif
__raw_writel(0, &qmgr_regs->sram[queue]);
used_sram_bitmap[0] &= ~mask[0];
@ -202,11 +217,8 @@ void qmgr_release_queue(unsigned int queue)
module_put(THIS_MODULE);
while ((addr = qmgr_get_entry(queue)))
printk(KERN_ERR "qmgr: released queue %d not empty: 0x%08X\n",
printk(KERN_ERR "qmgr: released queue %i not empty: 0x%08X\n",
queue, addr);
#if DEBUG
printk(KERN_DEBUG "qmgr: released queue %i\n", queue);
#endif
}
static int qmgr_init(void)
@ -277,5 +289,10 @@ EXPORT_SYMBOL(qmgr_regs);
EXPORT_SYMBOL(qmgr_set_irq);
EXPORT_SYMBOL(qmgr_enable_irq);
EXPORT_SYMBOL(qmgr_disable_irq);
#if DEBUG_QMGR
EXPORT_SYMBOL(qmgr_queue_descs);
EXPORT_SYMBOL(qmgr_request_queue);
#else
EXPORT_SYMBOL(__qmgr_request_queue);
#endif
EXPORT_SYMBOL(qmgr_release_queue);

55
drivers/net/arm/ixp4xx_eth.c
View File

@ -35,7 +35,6 @@
#include <mach/npe.h>
#include <mach/qmgr.h>
#define DEBUG_QUEUES 0
#define DEBUG_DESC 0
#define DEBUG_RX 0
#define DEBUG_TX 0
@ -423,47 +422,13 @@ static inline void debug_desc(u32 phys, struct desc *desc)
#endif
}
static inline void debug_queue(unsigned int queue, int is_get, u32 phys)
{
#if DEBUG_QUEUES
static struct {
int queue;
char *name;
} names[] = {
{ TX_QUEUE(0x10), "TX#0 " },
{ TX_QUEUE(0x20), "TX#1 " },
{ TX_QUEUE(0x00), "TX#2 " },
{ RXFREE_QUEUE(0x10), "RX-free#0 " },
{ RXFREE_QUEUE(0x20), "RX-free#1 " },
{ RXFREE_QUEUE(0x00), "RX-free#2 " },
{ TXDONE_QUEUE, "TX-done " },
};
int i;
for (i = 0; i < ARRAY_SIZE(names); i++)
if (names[i].queue == queue)
break;
printk(KERN_DEBUG "Queue %i %s%s %X\n", queue,
i < ARRAY_SIZE(names) ? names[i].name : "",
is_get ? "->" : "<-", phys);
#endif
}
static inline u32 queue_get_entry(unsigned int queue)
{
u32 phys = qmgr_get_entry(queue);
debug_queue(queue, 1, phys);
return phys;
}
static inline int queue_get_desc(unsigned int queue, struct port *port,
int is_tx)
{
u32 phys, tab_phys, n_desc;
struct desc *tab;
if (!(phys = queue_get_entry(queue)))
if (!(phys = qmgr_get_entry(queue)))
return -1;
phys &= ~0x1F; /* mask out non-address bits */
@ -479,7 +444,6 @@ static inline int queue_get_desc(unsigned int queue, struct port *port,
static inline void queue_put_desc(unsigned int queue, u32 phys,
struct desc *desc)
{
debug_queue(queue, 0, phys);
debug_desc(phys, desc);
BUG_ON(phys & 0x1F);
qmgr_put_entry(queue, phys);
@ -628,7 +592,7 @@ static void eth_txdone_irq(void *unused)
#if DEBUG_TX
printk(KERN_DEBUG DRV_NAME ": eth_txdone_irq\n");
#endif
while ((phys = queue_get_entry(TXDONE_QUEUE)) != 0) {
while ((phys = qmgr_get_entry(TXDONE_QUEUE)) != 0) {
u32 npe_id, n_desc;
struct port *port;
struct desc *desc;
@ -840,25 +804,30 @@ static int request_queues(struct port *port)
{
int err;
err = qmgr_request_queue(RXFREE_QUEUE(port->id), RX_DESCS, 0, 0);
err = qmgr_request_queue(RXFREE_QUEUE(port->id), RX_DESCS, 0, 0,
"%s:RX-free", port->netdev->name);
if (err)
return err;
err = qmgr_request_queue(port->plat->rxq, RX_DESCS, 0, 0);
err = qmgr_request_queue(port->plat->rxq, RX_DESCS, 0, 0,
"%s:RX", port->netdev->name);
if (err)
goto rel_rxfree;
err = qmgr_request_queue(TX_QUEUE(port->id), TX_DESCS, 0, 0);
err = qmgr_request_queue(TX_QUEUE(port->id), TX_DESCS, 0, 0,
"%s:TX", port->netdev->name);
if (err)
goto rel_rx;
err = qmgr_request_queue(port->plat->txreadyq, TX_DESCS, 0, 0);
err = qmgr_request_queue(port->plat->txreadyq, TX_DESCS, 0, 0,
"%s:TX-ready", port->netdev->name);
if (err)
goto rel_tx;
/* TX-done queue handles skbs sent out by the NPEs */
if (!ports_open) {
err = qmgr_request_queue(TXDONE_QUEUE, TXDONE_QUEUE_LEN, 0, 0);
err = qmgr_request_queue(TXDONE_QUEUE, TXDONE_QUEUE_LEN, 0, 0,
"%s:TX-done", DRV_NAME);
if (err)
goto rel_txready;
}

54
drivers/net/wan/ixp4xx_hss.c
View File

@ -21,7 +21,6 @@
#include <mach/npe.h>
#include <mach/qmgr.h>
#define DEBUG_QUEUES 0
#define DEBUG_DESC 0
#define DEBUG_RX 0
#define DEBUG_TX 0
@ -555,48 +554,13 @@ static inline void debug_desc(u32 phys, struct desc *desc)
#endif
}
static inline void debug_queue(unsigned int queue, int is_get, u32 phys)
{
#if DEBUG_QUEUES
static struct {
int queue;
char *name;
} names[] = {
{ HSS0_PKT_TX0_QUEUE, "TX#0 " },
{ HSS0_PKT_TXDONE_QUEUE, "TX-done#0 " },
{ HSS0_PKT_RX_QUEUE, "RX#0 " },
{ HSS0_PKT_RXFREE0_QUEUE, "RX-free#0 " },
{ HSS1_PKT_TX0_QUEUE, "TX#1 " },
{ HSS1_PKT_TXDONE_QUEUE, "TX-done#1 " },
{ HSS1_PKT_RX_QUEUE, "RX#1 " },
{ HSS1_PKT_RXFREE0_QUEUE, "RX-free#1 " },
};
int i;
for (i = 0; i < ARRAY_SIZE(names); i++)
if (names[i].queue == queue)
break;
printk(KERN_DEBUG "Queue %i %s%s %X\n", queue,
i < ARRAY_SIZE(names) ? names[i].name : "",
is_get ? "->" : "<-", phys);
#endif
}
static inline u32 queue_get_entry(unsigned int queue)
{
u32 phys = qmgr_get_entry(queue);
debug_queue(queue, 1, phys);
return phys;
}
static inline int queue_get_desc(unsigned int queue, struct port *port,
int is_tx)
{
u32 phys, tab_phys, n_desc;
struct desc *tab;
if (!(phys = queue_get_entry(queue)))
if (!(phys = qmgr_get_entry(queue)))
return -1;
BUG_ON(phys & 0x1F);
@ -612,7 +576,6 @@ static inline int queue_get_desc(unsigned int queue, struct port *port,
static inline void queue_put_desc(unsigned int queue, u32 phys,
struct desc *desc)
{
debug_queue(queue, 0, phys);
debug_desc(phys, desc);
BUG_ON(phys & 0x1F);
qmgr_put_entry(queue, phys);
@ -930,23 +893,28 @@ static int request_hdlc_queues(struct port *port)
{
int err;
err = qmgr_request_queue(queue_ids[port->id].rxfree, RX_DESCS, 0, 0);
err = qmgr_request_queue(queue_ids[port->id].rxfree, RX_DESCS, 0, 0,
"%s:RX-free", port->netdev->name);
if (err)
return err;
err = qmgr_request_queue(queue_ids[port->id].rx, RX_DESCS, 0, 0);
err = qmgr_request_queue(queue_ids[port->id].rx, RX_DESCS, 0, 0,
"%s:RX", port->netdev->name);
if (err)
goto rel_rxfree;
err = qmgr_request_queue(queue_ids[port->id].tx, TX_DESCS, 0, 0);
err = qmgr_request_queue(queue_ids[port->id].tx, TX_DESCS, 0, 0,
"%s:TX", port->netdev->name);
if (err)
goto rel_rx;
err = qmgr_request_queue(port->plat->txreadyq, TX_DESCS, 0, 0);
err = qmgr_request_queue(port->plat->txreadyq, TX_DESCS, 0, 0,
"%s:TX-ready", port->netdev->name);
if (err)
goto rel_tx;
err = qmgr_request_queue(queue_ids[port->id].txdone, TX_DESCS, 0, 0);
err = qmgr_request_queue(queue_ids[port->id].txdone, TX_DESCS, 0, 0,
"%s:TX-done", port->netdev->name);
if (err)
goto rel_txready;
return 0;