diff options
| author | Harman Kalra <hkalra@marvell.com> | 2021-06-29 20:00:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-01 21:27:57 +0300 |
| commit | 873a1e3d207ae587a7a1cc1d84545146b449ea5d (patch) | |
| tree | 5eb802283e3e031910535a835a5b61a0f64881ab /drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h | |
| parent | dbe69e43372212527abf48609aba7fc39a6daa27 (diff) | |
| download | linux-873a1e3d207ae587a7a1cc1d84545146b449ea5d.tar.xz | |
octeontx2-af: cn10k: Setting up lmtst map table
Introducing a new mailbox to support updating lmt entries
and common lmt base address scheme i.e. multiple pcifuncs
can share lmt region to reduce L1 cache pressure for application.
Parameters passed to mailbox includes the primary pcifunc
value whose lmt regions will be shared by other secondary
pcifuncs. Here secondary pcifunc will be the one who is
calling the mailbox.
For example:
By default each pcifunc has its own LMT base address:
PCIFUNC1 LMT_BASE_ADDR A
PCIFUNC2 LMT_BASE_ADDR B
PCIFUNC3 LMT_BASE_ADDR C
PCIFUNC4 LMT_BASE_ADDR D
Application will choose PCIFUNC1 as base/primary pcifunc
and as and when other pcifunc(secondary pcifuncs) gets
probed, this mailbox will be called and LMTST table will
be updated as:
PCIFUNC1 LMT_BASE_ADDR A
PCIFUNC2 LMT_BASE_ADDR A
PCIFUNC3 LMT_BASE_ADDR A
PCIFUNC4 LMT_BASE_ADDR A
On FLR lmtst map table gets resetted to the default lmt
base addresses for all secondary pcifuncs.
Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
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 | 5 |
1 files changed, 5 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 76837d5e19c6..61bafe956aae 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h @@ -692,4 +692,9 @@ #define LBK_LINK_CFG_ID_MASK GENMASK_ULL(11, 6) #define LBK_LINK_CFG_BASE_MASK GENMASK_ULL(5, 0) +/* APR */ +#define APR_AF_LMT_CFG (0x000ull) +#define APR_AF_LMT_MAP_BASE (0x008ull) +#define APR_AF_LMT_CTL (0x010ull) + #endif /* RVU_REG_H */ |