net: hibmcge: reduce packet drop under stress testing

net: hibmcge: reduce packet drop under stress testing

Under stress test scenarios, hibmcge driver may not receive packets
in a timely manner, which can lead to the buffer of the hardware queue
being exhausted, resulting in packet drop.

This patch doubles the software queue depth and uses half of the buffer
to fill the hardware queue before receiving packets, thus preventing
packet loss caused by the hardware queue buffer being exhausted.

Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/20251122034657.3373143-3-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>