From mboxrd@z Thu Jan 1 00:00:00 1970 From: mans@mansr.com (=?iso-8859-1?Q?M=E5ns_Rullg=E5rd?=) Date: Thu, 03 Aug 2017 13:19:41 +0100 Subject: [RFC PATCH v2 0/2] nb8800 suspend/resume support In-Reply-To: (Mason's message of "Thu, 3 Aug 2017 10:34:31 +0200") References: <33d1ab47-6098-5e3f-8a3c-f72626d07113@free.fr> <9e8e12b1-74e2-8323-ec16-eebda46b2a3d@free.fr> <6906dccf-bec9-0fc8-a34a-c39c05ada917@free.fr> <71dd7987-8c43-2548-5058-51a95658da71@free.fr> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Mason writes: > IIUC, sender (desktop system) sends datagrams as fast as possible. > Receiver (tango board) drops around 24% of all datagrams. > I think this invalidates the theory that exhausting RX descriptors > wedges RX DMA. No, it doesn't. The bottleneck causing packet loss could be somewhere else. -- M?ns Rullg?rd