Re: RFR: new SiS gige driver
From: Andi Kleen <hidden>
Date: 2003-08-09 14:15:33
* since it's gige, it should definitely be using NAPI
* it does not check its kmalloc returns. * and doesn't set a DMA mask. This means it is not DAC capable? * does not use pci_dma_* mappings like David noted. * no hardware checksum support? This looks quite poor for a Gigabit chipset. * same with sendpage - gigabit should have that. * missing NAPI and even with NAPI it should support interrupt mitigation - but the driver doesn't seem to do that. I suspect it's very easily DoSable in the current form. Even with NAPI interrupt mitigation would be needed, otherwise the start/stop of polling mode can be too expensive for moderate load. * netif_stop_queue in hard_start_xmit is not protected against the interrupt by the spinlock. That's racy, isn't it? -Andi