diff options
Diffstat (limited to 'c/src/libchip/network/dwmac.c')
| -rw-r--r-- | c/src/libchip/network/dwmac.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/c/src/libchip/network/dwmac.c b/c/src/libchip/network/dwmac.c index 06356436e5..ce2fa17e67 100644 --- a/c/src/libchip/network/dwmac.c +++ b/c/src/libchip/network/dwmac.c @@ -27,6 +27,7 @@ #include <string.h> #include <errno.h> #include <bsp.h> +#include <bsp/fatal.h> #include <rtems/endian.h> #include "dwmac-common.h" #include "dwmac-core.h" @@ -47,9 +48,9 @@ const dwmac_phy_event PHY_EVENT_REMOTE_FAULT = 0x02; const dwmac_phy_event PHY_EVENT_LINK_UP = 0x01; /* Default values for the number of DMA descriptors and mbufs to be used */ -#define DWMAC_CONFIG_RX_UNIT_COUNT_DEFAULT 256 +#define DWMAC_CONFIG_RX_UNIT_COUNT_DEFAULT 64 #define DWMAC_CONFIG_RX_UNIT_COUNT_MAX INT_MAX -#define DWMAC_CONFIG_TX_UNIT_COUNT_DEFAULT 256 +#define DWMAC_CONFIG_TX_UNIT_COUNT_DEFAULT 64 #define DWMAC_CONFIG_TX_UNIT_COUNT_MAX INT_MAX /* Default values for the DMA configuration */ @@ -96,6 +97,9 @@ const dwmac_phy_event PHY_EVENT_LINK_UP = 0x01; #define DWMAC_DMA_THRESHOLD_CONTROL_DEFAULT 64 +#define DWMAC_GLOBAL_MBUF_CNT (rtems_bsdnet_config.mbuf_bytecount / sizeof(struct mbuf)) +#define DWMAG_GLOBAL_MCLUST_CNT (rtems_bsdnet_config.mbuf_cluster_bytecount / MCLBYTES) + static int dwmac_if_mdio_busy_wait( const volatile uint32_t *gmii_address ) { rtems_interval timeout = rtems_clock_get_ticks_per_second(); @@ -2168,6 +2172,13 @@ static int dwmac_if_attach( DWMAC_CONFIG_TX_UNIT_COUNT_MAX ); + if ( + DWMAC_GLOBAL_MBUF_CNT / 4 < bsd_config->rbuf_count + || DWMAG_GLOBAL_MCLUST_CNT / 4 < bsd_config->rbuf_count + ) { + bsp_fatal( DWMAC_FATAL_TOO_MANY_RBUFS_CONFIGURED ); + } + /* Copy MAC address */ memcpy( self->arpcom.ac_enaddr, |