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X-Received-From: 2a00:1450:4864:20::443 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ramon Fried , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Wraparound of TX descriptor cyclic buffer only updated the low 32 bits of the descriptor. Fix that by checking if we're working with 64bit descriptors. Signed-off-by: Ramon Fried Reviewed-by: Edgar E. Iglesias --- hw/net/cadence_gem.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c index 51ec5a072d..b8ae21cc0d 100644 --- a/hw/net/cadence_gem.c +++ b/hw/net/cadence_gem.c @@ -1238,7 +1238,14 @@ static void gem_transmit(CadenceGEMState *s) /* read next descriptor */ if (tx_desc_get_wrap(desc)) { tx_desc_set_last(desc); - packet_desc_addr =3D s->regs[GEM_TXQBASE]; + + if (s->regs[GEM_DMACFG] & GEM_DMACFG_ADDR_64B) { + packet_desc_addr =3D s->regs[GEM_TBQPH]; + packet_desc_addr <<=3D 32; + } else { + packet_desc_addr =3D 0; + } + packet_desc_addr |=3D s->regs[GEM_TXQBASE]; } else { packet_desc_addr +=3D 4 * gem_get_desc_len(s, false); } --=20 2.26.0