Patch to add NAPI support to sb1250-mac.c (rev 2). This patch differs from
the last in that the NAPI support isn't marked as experimental, nor is it
configurable (ie. once applied - NAPI is enabled all the time). This was
based on feedback from Ralf and others.
Signed-off-by: Mark Mason <[EMAIL PROTECTED]>
---
drivers/net/sb1250-mac.c | 278 ++
1 files changed, 182 insertions(+), 96 deletions(-)
diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
index 103c317..f8df1ec 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -95,19 +95,28 @@ MODULE_PARM_DESC(full_duplex, "1-"
__MODULE_STRING(MAX_UNITS));
#endif
#ifdef CONFIG_SBMAC_COALESCE
-static int int_pktcnt = 0;
-module_param(int_pktcnt, int, S_IRUGO);
-MODULE_PARM_DESC(int_pktcnt, "Packet count");
+static int int_pktcnt_tx = 255;
+module_param(int_pktcnt_tx, int, S_IRUGO);
+MODULE_PARM_DESC(int_pktcnt_tx, "TX packet count");
-static int int_timeout = 0;
-module_param(int_timeout, int, S_IRUGO);
-MODULE_PARM_DESC(int_timeout, "Timeout value");
+static int int_timeout_tx = 255;
+module_param(int_timeout_tx, int, S_IRUGO);
+MODULE_PARM_DESC(int_timeout_tx, "TX timeout value");
+
+static int int_pktcnt_rx = 64;
+module_param(int_pktcnt_rx, int, S_IRUGO);
+MODULE_PARM_DESC(int_pktcnt_rx, "RX packet count");
+
+static int int_timeout_rx = 64;
+module_param(int_timeout_rx, int, S_IRUGO);
+MODULE_PARM_DESC(int_timeout_rx, "RX timeout value");
#endif
#include
#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
#include
#include
+#define R_MAC_DMA_OODPKTLOST_RXR_MAC_DMA_OODPKTLOST
#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
#include
#include
@@ -155,8 +164,8 @@ typedef enum { sbmac_state_uninit, sbmac_state_off,
sbmac_state_on,
#define NUMCACHEBLKS(x) (((x)+SMP_CACHE_BYTES-1)/SMP_CACHE_BYTES)
-#define SBMAC_MAX_TXDESCR 32
-#define SBMAC_MAX_RXDESCR 32
+#define SBMAC_MAX_TXDESCR 256
+#define SBMAC_MAX_RXDESCR 256
#define ETHER_ALIGN2
#define ETHER_ADDR_LEN 6
@@ -185,10 +194,10 @@ typedef struct sbmacdma_s {
* associated with it.
*/
- struct sbmac_softc *sbdma_eth; /* back pointer to associated
MAC */
- int sbdma_channel; /* channel number */
+ struct sbmac_softc *sbdma_eth; /* back pointer to associated MAC */
+ int sbdma_channel; /* channel number */
int sbdma_txdir; /* direction (1=transmit) */
- int sbdma_maxdescr;/* total # of descriptors in
ring */
+ int sbdma_maxdescr;/* total # of descriptors in ring */
#ifdef CONFIG_SBMAC_COALESCE
int sbdma_int_pktcnt; /* # descriptors rx/tx before
interrupt*/
int sbdma_int_timeout; /* # usec rx/tx interrupt */
@@ -197,13 +206,16 @@ typedef struct sbmacdma_s {
volatile void __iomem *sbdma_config0; /* DMA config register 0 */
volatile void __iomem *sbdma_config1; /* DMA config register 1 */
volatile void __iomem *sbdma_dscrbase; /* Descriptor base address */
- volatile void __iomem *sbdma_dscrcnt; /* Descriptor count register
*/
+ volatile void __iomem *sbdma_dscrcnt; /* Descriptor count register */
volatile void __iomem *sbdma_curdscr; /* current descriptor address */
+ volatile void __iomem *sbdma_oodpktlost;/* pkt drop (rx only) */
+
/*
* This stuff is for maintenance of the ring
*/
+ sbdmadscr_t *sbdma_dscrtable_unaligned;
sbdmadscr_t *sbdma_dscrtable; /* base of descriptor table */
sbdmadscr_t *sbdma_dscrtable_end; /* end of descriptor table */
@@ -286,8 +298,8 @@ static int sbdma_add_rcvbuffer(sbmacdma_t *d,struct sk_buff
*m);
static int sbdma_add_txbuffer(sbmacdma_t *d,struct sk_buff *m);
static void sbdma_emptyring(sbmacdma_t *d);
static void sbdma_fillring(sbmacdma_t *d);
-static void sbdma_rx_process(struct sbmac_softc *sc,sbmacdma_t *d);
-static void sbdma_tx_process(struct sbmac_softc *sc,sbmacdma_t *d);
+static int sbdma_rx_process(struct sbmac_softc *sc,sbmacdma_t *d, int
work_to_do, int poll);
+static void sbdma_tx_process(struct sbmac_softc *sc,sbmacdma_t *d, int poll);
static int sbmac_initctx(struct sbmac_softc *s);
static void sbmac_channel_start(struct sbmac_softc *s);
static void sbmac_channel_stop(struct sbmac_softc *s);
@@ -308,6 +320,8 @@ static struct net_device_stats *sbmac_get_stats(struct
net_device *dev);
static void sbmac_set_rx_mode(struct net_device *dev);
static int sbmac_mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int sbmac_close(struct net_device *dev);
+static int sbmac_poll(struct net_device *poll_dev, int *budget);
+
static int sbmac_mii_poll(struct sbmac_softc *s,int noisy);
static int sbmac_mii_probe(struct net_device *
