diff options
| author | Sunil Goutham <sgoutham@marvell.com> | 2021-07-30 14:49:13 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-02 12:47:12 +0300 |
| commit | 76660df2b4a264519afef1936b5d848f62781ae5 (patch) | |
| tree | b7491c9d744e4cc172e55e713cd42b1b463b1f0c /drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h | |
| parent | cfba3fb68960b4e1fb63b4e3d95970b4a4be8577 (diff) | |
| download | linux-76660df2b4a264519afef1936b5d848f62781ae5.tar.xz | |
octeontx2-af: cn10k: DWRR MTU configuration
On OcteonTx2 DWRR quantum is directly configured into each of
the transmit scheduler queues. And PF/VF drivers were free to
config any value upto 2^24.
On CN10K, HW is modified, the quantum configuration at scheduler
queues is in terms of weight. And SW needs to setup a base DWRR MTU
at NIX_AF_DWRR_RPM_MTU / NIX_AF_DWRR_SDP_MTU. HW will do
'DWRR MTU * weight' to get the quantum. For LBK traffic, value
programmed into NIX_AF_DWRR_RPM_MTU register is considered as
DWRR MTU.
This patch programs a default DWRR MTU of 8192 into HW and also
provides a way to change this via devlink params.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h index 8b01ef6e2c99..6efcf3afff40 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h @@ -269,6 +269,8 @@ #define NIX_AF_DEBUG_NPC_RESP_DATAX(a) (0x680 | (a) << 3) #define NIX_AF_SMQX_CFG(a) (0x700 | (a) << 16) #define NIX_AF_SQM_DBG_CTL_STATUS (0x750) +#define NIX_AF_DWRR_SDP_MTU (0x790) +#define NIX_AF_DWRR_RPM_MTU (0x7A0) #define NIX_AF_PSE_CHANNEL_LEVEL (0x800) #define NIX_AF_PSE_SHAPER_CFG (0x810) #define NIX_AF_TX_EXPR_CREDIT (0x830) |