diff options
Diffstat (limited to 'hw/net/cadence_gem.c')
| -rw-r--r-- | hw/net/cadence_gem.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c index 0346f3e33..db1b301e7 100644 --- a/hw/net/cadence_gem.c +++ b/hw/net/cadence_gem.c @@ -274,6 +274,11 @@ static inline unsigned tx_desc_get_last(unsigned *desc) return (desc[1] & DESC_1_TX_LAST) ? 1 : 0; } +static inline void tx_desc_set_last(unsigned *desc) +{ + desc[1] |= DESC_1_TX_LAST; +} + static inline unsigned tx_desc_get_length(unsigned *desc) { return desc[1] & DESC_1_LENGTH; @@ -664,6 +669,13 @@ static ssize_t gem_receive(NetClientState *nc, const uint8_t *buf, size_t size) GEM_DMACFG_RBUFSZ_S) * GEM_DMACFG_RBUFSZ_MUL; bytes_to_copy = size; + /* Hardware allows a zero value here but warns against it. To avoid QEMU + * indefinite loops we enforce a minimum value here + */ + if (rxbufsize < GEM_DMACFG_RBUFSZ_MUL) { + rxbufsize = GEM_DMACFG_RBUFSZ_MUL; + } + /* Pad to minimum length. Assume FCS field is stripped, logic * below will increment it to the real minimum of 64 when * not FCS stripping @@ -932,6 +944,7 @@ static void gem_transmit(CadenceGEMState *s) /* read next descriptor */ if (tx_desc_get_wrap(desc)) { + tx_desc_set_last(desc); packet_desc_addr = s->regs[GEM_TXQBASE]; } else { packet_desc_addr += 8; @@ -1194,7 +1207,7 @@ static void gem_set_link(NetClientState *nc) } static NetClientInfo net_gem_info = { - .type = NET_CLIENT_OPTIONS_KIND_NIC, + .type = NET_CLIENT_DRIVER_NIC, .size = sizeof(NICState), .can_receive = gem_can_receive, .receive = gem_receive, |