diff options
Diffstat (limited to '')
| -rw-r--r-- | c/src/libchip/network/sonic.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/c/src/libchip/network/sonic.c b/c/src/libchip/network/sonic.c index 1cd6cba1a2..d81c25130c 100644 --- a/c/src/libchip/network/sonic.c +++ b/c/src/libchip/network/sonic.c @@ -826,19 +826,17 @@ SONIC_STATIC void sonic_rda_wait( * driver has to move the RRP back *two* entries to * reuse the receive buffer holding the giant packet. */ - for (i = 0 ; i < 2 ; i++) { - if ((*sc->read_register)( rp, SONIC_REG_RRP ) == - (*sc->read_register)( rp, SONIC_REG_RSA )) - (*sc->write_register)( - rp, - SONIC_REG_RRP, - (*sc->read_register)( rp, SONIC_REG_REA ) - ); - (*sc->write_register)( - rp, - SONIC_REG_RRP, - (*sc->read_register)(rp, SONIC_REG_RRP) - sizeof(ReceiveResource_t) - ); + for (i = 0; i < 2; ++i) { + uint32_t rrp = (*sc->read_register)( rp, SONIC_REG_RRP ); + const uint32_t rsa = (*sc->read_register)( rp, SONIC_REG_RSA ); + + if (rrp == rsa) { + const uint32_t rea = (*sc->read_register)( rp, SONIC_REG_REA ); + (*sc->write_register)( rp, SONIC_REG_RRP, rea ); + } + + rrp = (*sc->read_register)( rp, SONIC_REG_RRP ); + (*sc->write_register)( rp, SONIC_REG_RRP, rrp - sizeof(ReceiveResource_t) ); } /* |