On Tue, Mar 08, 2016 at 04:00:29PM +0100, Marc Sune wrote: > 2016-03-01 1:45 GMT+01:00 Marc Sune <marcdevel at gmail.com>: > > > The current rte_eth_dev_info abstraction does not provide any mechanism to > > get the supported speed(s) of an ethdev. > > > > For some drivers (e.g. ixgbe), an educated guess could be done based on the > > driver's name (driver_name in rte_eth_dev_info), see: > > > > http://dpdk.org/ml/archives/dev/2013-August/000412.html > > > > However, i) doing string comparisons is annoying, and can silently > > break existing applications if PMDs change their names ii) it does not > > provide all the supported capabilities of the ethdev iii) for some drivers > > it > > is impossible determine correctly the (max) speed by the application > > (e.g. in i40, distinguish between XL710 and X710). > > > > In addition, the link APIs do not allow to define a set of advertised link > > speeds for autonegociation. > > > > This series of patches adds the following capabilities: > > > > * speed_capa bitmap in rte_eth_dev_info, which is filled by the PMDs > > according to the physical device capabilities. > > * refactors link API in ethdev to allow the definition of the advertised > > link speeds, fix speed (no auto-negociation) or advertise all supported > > speeds (default). > > > > WARNING: this patch series, specifically 3/4, is NOT tested for most of the > > PMDs, due to the lack of hardware. Only generic EM is tested (VM). > > Reviewing > > and testing required by PMD maintainers. > > > > * * * * * > > > > v2: rebase, converted speed_capa into 32 bits bitmap, fixed alignment > > (checkpatch). > > > > v3: rebase to v2.1. unified ETH_LINK_SPEED and ETH_SPEED_CAP into > > ETH_SPEED. > > Converted field speed in struct rte_eth_conf to speed, to allow a > > bitmap > > for defining the announced speeds, as suggested M. Brorup. Fixed > > spelling > > issues. > > > > v4: fixed errata in the documentation of field speeds of rte_eth_conf, and > > commit 1/2 message. rebased to v2.1.0. v3 was incorrectly based on > > ~2.1.0-rc1. > > > > v5: revert to v2 speed capabilities patch. Fixed MLX4 speed capabilities > > (thanks N. Laranjeiro). Refactored link speed API to allow setting > > advertised speeds (3/4). Added NO_AUTONEG option to explicitely disable > > auto-negociation. Updated 2.2 rel. notes (4/4). Rebased to current > > HEAD. > > > > v6: Move link_duplex to be part of bitfield. Fixed i40 autoneg flag link > > update code. Added rte_eth_speed_to_bm_flag() to .map file. Fixed other > > spelling issues. Rebased to current HEAD. > > > > v7: Rebased to current HEAD. Moved documentation to v2.3. Still needs > > testing > > from PMD maintainers. > > > > v8: Rebased to current HEAD. Modified em driver impl. to not touch base > > files. > > Merged patch 5 into 3 (map file). Changed numeric speed to a 64 bit > > value. > > Filled-in speed capabilities for drivers bnx2x, cxgbe, mlx5 and nfp in > > addition to the ones of previous patch sets. > > > > v9: rebased to current HEAD. Reverted numeric speed to 32 bit in struct > > rte_eth_link (no atomic link get > 64bit). Fixed mlx5 driver > > compilation > > and link speeds. Moved documentation to release_16_04.rst and fixed > > several > > issues. Upgrade NIC notes with speed capabilities. > > > > Anyone interested in reviewing and _testing_ this series? > > Thank you > Marc
Hi Marc, I will take a look tomorrow morning and run test on Mellanox NICs (ConnectX 3 and 4). I do not have access to the others NICs, if those who have can do it, could be really great. Regards, -- N?lio Laranjeiro 6WIND
