diff options
Diffstat (limited to 'usrp2/firmware/lib')
| -rw-r--r-- | usrp2/firmware/lib/eth_mac.c | 5 | ||||
| -rw-r--r-- | usrp2/firmware/lib/eth_mac_regs.h | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/usrp2/firmware/lib/eth_mac.c b/usrp2/firmware/lib/eth_mac.c index becd93644..2ef1f73f4 100644 --- a/usrp2/firmware/lib/eth_mac.c +++ b/usrp2/firmware/lib/eth_mac.c @@ -46,7 +46,10 @@ eth_mac_init(const u2_mac_addr_t *src) eth_mac->miimoder = 25; // divider from CPU clock (50MHz/25 = 2MHz) eth_mac_set_addr(src); - eth_mac->settings = MAC_SET_PAUSE_EN | MAC_SET_PASS_BCAST | MAC_SET_PASS_UCAST; // 0x39; + eth_mac->settings = MAC_SET_PAUSE_EN | MAC_SET_PASS_BCAST | MAC_SET_PASS_UCAST | MAC_SET_PAUSE_SEND_EN; + + eth_mac->pause_time = 38; + eth_mac->pause_thresh = 1200; // set rx flow control high and low water marks // unsigned int lwmark = (2*2048 + 64)/4; // 2 * 2048-byte frames + 1 * 64-byte pause frame diff --git a/usrp2/firmware/lib/eth_mac_regs.h b/usrp2/firmware/lib/eth_mac_regs.h index a14c00641..d680f8de0 100644 --- a/usrp2/firmware/lib/eth_mac_regs.h +++ b/usrp2/firmware/lib/eth_mac_regs.h @@ -35,6 +35,8 @@ typedef struct { volatile int miicommand; volatile int miistatus; volatile int miirx_data; + volatile int pause_time; + volatile int pause_thresh; } eth_mac_regs_t; // settings register @@ -44,6 +46,7 @@ typedef struct { #define MAC_SET_PASS_BCAST (1 << 3) // Sends broadcast frames through (normally on) #define MAC_SET_PASS_MCAST (1 << 4) // Sends multicast frames that match mcast addr (normally off) #define MAC_SET_PASS_UCAST (1 << 5) // Sends unicast (normal) frames through if they hit in address filter (normally on) +#define MAC_SET_PAUSE_SEND_EN (1 << 6) // Enables sending pause frames // miicommand register #define MIIC_SCANSSTAT (1 << 0) // Scan status |