Tuesday, April 16, 2019 5:10 PM, Viacheslav Ovsiienko: > Subject: [dpdk-dev] [PATCH v2] net/mlx5: add support for PF representor > > On BlueField platform we have the new entity - PF representor. > This one represents the PCI PF attached to external host on the side of ARM. > The traffic sent by the external host to the NIC via PF will be seem by ARM on > this PF representor. > > This patch refactors port recognizing capability on the base of physical port > name. We have two groups of name formats. Legacy name formats are > supported by kernels before ver 5.0 (being more precise - before the patch > [1]) or before Mellanox OFED 4.6, and new naming formats added by the > patch [1]. > > Legacy naming formats are supported: > > - missing physical port name (no sysfs/netlink key) at all, > master is assumed > > - decimal digits (for example "12"), representor is assumed, > the value is the index of attached VF > > New naming formats are supported: > > - "p" followed by decimal digits, for example "p2", master > is assumed > > - "pf" followed by PF index concatenated with "vf" followed by > VF index, for example "pf0vf1", representor is assumed. > If index of VF is "-1" it is a special case of host PF > representor, this representor must be indexed in devargs > as 65535, for example representor=[0-3,65535] will > allow representors for VF0, VF1, VF2, VF3 and for host PF. > > Note: do not specify representor=[0-65535], it causes devargs > processing error, because number of ports (rte_eth_dev) is > limited. > > Applications should distinguish representors and master devices exclusively > by device flag RTE_ETH_DEV_REPRESENTOR and do not rely on switch > port_id (mlx5 PMD deduces ones from representor_id) values returned by > dev_infos_get() API. > > [1] > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > .spinics.net%2Flists%2Fnetdev%2Fmsg547007.html&data=02%7C01%7C > shahafs%40mellanox.com%7C95dc9265aee344ca1c1108d6c27553f3%7Ca6529 > 71c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636910206515011521&sd > ata=xJFDvK63LaQB9B8eVNn8iKfH5YzsnLW%2FsN1wPh6iyK8%3D&reser > ved=0 > Linux-tree: c12ecc23 (Or Gerlitz 2018-04-25 17:32 +0300) > "net/mlx5e: Move to use common phys port names for vport > representors" > > Signed-off-by: Viacheslav Ovsiienko <viachesl...@mellanox.com>
Applied to next-net-mlx, thanks.
