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[net-next,0/4] Priority flow control support for RVU netdev

Message ID 20220208095456.6122-1-hkelam@marvell.com (mailing list archive)
Headers show
Series Priority flow control support for RVU netdev | expand

Message

Hariprasad Kelam Feb. 8, 2022, 9:54 a.m. UTC 
In network congestion, instead of pausing all traffic on link
PFC allows user to selectively pause traffic according to its
class. This series of patches add support of PFC for RVU netdev
drivers.

Patch1 adds support to disable pause frames by default as
with PFC user can enable either PFC or 802.3 pause frames.
Patch2&3 adds resource management support for flow control
and configures necessary registers for PFC.
Patch4 adds dcb ops registration for netdev drivers.



Hariprasad Kelam (3):
  octeontx2-af: Don't enable Pause frames by default
  octeontx2-af: Flow control resource management
  octeontx2-pf: PFC config support with DCBx

Sunil Kumar Kori (1):
  octeontx2-af: Priority flow control configuration support

 .../net/ethernet/marvell/octeontx2/af/cgx.c   | 247 +++++++++++++-----
 .../net/ethernet/marvell/octeontx2/af/cgx.h   |  13 +
 .../marvell/octeontx2/af/lmac_common.h        |  10 +
 .../net/ethernet/marvell/octeontx2/af/mbox.h  |  19 ++
 .../net/ethernet/marvell/octeontx2/af/rpm.c   | 223 ++++++++++++----
 .../net/ethernet/marvell/octeontx2/af/rpm.h   |  30 +++
 .../net/ethernet/marvell/octeontx2/af/rvu.h   |   3 +
 .../ethernet/marvell/octeontx2/af/rvu_cgx.c   | 117 ++++++++-
 .../ethernet/marvell/octeontx2/af/rvu_nix.c   |  16 +-
 .../ethernet/marvell/octeontx2/nic/Makefile   |   3 +
 .../marvell/octeontx2/nic/otx2_common.c       |  17 +-
 .../marvell/octeontx2/nic/otx2_common.h       |  12 +
 .../marvell/octeontx2/nic/otx2_dcbnl.c        | 170 ++++++++++++
 .../marvell/octeontx2/nic/otx2_flows.c        |  50 +++-
 .../ethernet/marvell/octeontx2/nic/otx2_pf.c  |  26 +-
 .../ethernet/marvell/octeontx2/nic/otx2_vf.c  |  24 +-
 16 files changed, 835 insertions(+), 145 deletions(-)
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c

--
2.17.1

Comments

Jakub Kicinski Feb. 9, 2022, 12:56 a.m. UTC | #1 
On Tue, 8 Feb 2022 15:24:52 +0530 Hariprasad Kelam wrote:
> In network congestion, instead of pausing all traffic on link
> PFC allows user to selectively pause traffic according to its
> class. This series of patches add support of PFC for RVU netdev
> drivers.
> 
> Patch1 adds support to disable pause frames by default as
> with PFC user can enable either PFC or 802.3 pause frames.
> Patch2&3 adds resource management support for flow control
> and configures necessary registers for PFC.
> Patch4 adds dcb ops registration for netdev drivers.

Does not build:

ERROR: modpost: "otx2_config_pause_frm" [drivers/net/ethernet/marvell/octeontx2/nic/rvu_nicvf.ko] undefined!