Date: Thu, 28 Apr 2016 12:28:34 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: bazzoola <bazzoola@gmail.com> Cc: Luigi Rizzo <rizzo@iet.unipi.it>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Navdeep Parhar <np@freebsd.org> Subject: Re: netmap overrun counters Message-ID: <CAJ-VmokTCdH765p1gb_2MnhK_Zgbqk3VdfNZ%2BspV0zE7q%2BYcWw@mail.gmail.com> In-Reply-To: <c004919a-21fd-51d9-eb35-8458ebe97652@gmail.com> References: <cd306a81-3a4b-6386-a059-73d455d3c931@gmail.com> <9fd88731-2cdf-a6da-4b4e-f97bb120696a@FreeBSD.org> <863506de-870e-0da4-81d3-6ab537feaa2b@gmail.com> <CA%2BhQ2%2Bj%2BQyOTfKHhkp3KRQsD7aTdA=o4rQAZ_hnYXB8_x9py6Q@mail.gmail.com> <c004919a-21fd-51d9-eb35-8458ebe97652@gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
It doesn't overwrite unread slots; it just hits the end and stops RX'ing (and is counted by the NIC as an RX overflow) until you've RX'ed some frames and told netmap what you've handed. -adrian
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAJ-VmokTCdH765p1gb_2MnhK_Zgbqk3VdfNZ%2BspV0zE7q%2BYcWw>