diff options
| author |   Hariprasad Kelam <hkelam@marvell.com> | 2022-02-09 12:45:18 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-02-09 13:02:33 +0000 |
| commit | e740003874edc13e468d19233f99787bedb4bb8e (patch) | |
| tree | c7ef303e361d466a11d4714b9ef29a8413de2b13 /drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | |
| parent | octeontx2-af: Priority flow control configuration support (diff) | |
| download | linux-dev-e740003874edc13e468d19233f99787bedb4bb8e.tar.xz linux-dev-e740003874edc13e468d19233f99787bedb4bb8e.zip | |
octeontx2-af: Flow control resource management
CN10K MAC block (RPM) and Octeontx2 MAC block (CGX) both supports
PFC flow control and 802.3X flow control pause frames.
Each MAC block supports max 4 LMACS and AF driver assigns same
(MAC,LMAC) to PF and its VFs. As PF and its share same (MAC,LMAC)
pair we need resource management to address below scenarios
1. Maintain PFC and 8023X pause frames mutually exclusive.
2. Reject disable flow control request if other PF or Vfs
enabled it.
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c index 811d775a9752..73cd39af0090 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c @@ -525,7 +525,7 @@ static int rvu_nix_get_bpid(struct rvu *rvu, struct nix_bp_cfg_req *req, */ switch (type) { case NIX_INTF_TYPE_CGX: - if ((req->chan_base + req->chan_cnt) > 15) + if ((req->chan_base + req->chan_cnt) > 16) return -EINVAL; rvu_get_cgx_lmac_id(pfvf->cgx_lmac, &cgx_id, &lmac_id); /* Assign bpid based on cgx, lmac and chan id */ @@ -4570,6 +4570,12 @@ void rvu_nix_lf_teardown(struct rvu *rvu, u16 pcifunc, int blkaddr, int nixlf) pfvf->hw_rx_tstamp_en = false; } + /* reset priority flow control config */ + rvu_cgx_prio_flow_ctrl_cfg(rvu, pcifunc, 0, 0, 0); + + /* reset 802.3x flow control config */ + rvu_cgx_cfg_pause_frm(rvu, pcifunc, 0, 0); + nix_ctx_free(rvu, pfvf); nix_free_all_bandprof(rvu, pcifunc); |