From: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>
[ Upstream commit b51612198603fce33d6cf57b4864e3018a1cd9b8 ]
As per hardware errata on CN10KB, all the four TCAM_DATA
and TCAM_MASK registers has to be written at once otherwise
write to individual registers will fail. Hence write to all
TCAM_DATA registers and then to all TCAM_MASK registers.
Fixes: cfc14181d497 ("octeontx2-af: cn10k: mcs: Manage the MCS block hardware resources")
Signed-off-by: Subbaraya Sundeep <sbhatta@xxxxxxxxxxx>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@xxxxxxxxxxx>
Signed-off-by: Geetha sowjanya <gakula@xxxxxxxxxxx>
Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/marvell/octeontx2/af/mcs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c
index 492baa0b594ce..148417d633a56 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mcs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c
@@ -473,6 +473,8 @@ void mcs_flowid_entry_write(struct mcs *mcs, u64 *data, u64 *mask, int flow_id,
for (reg_id = 0; reg_id < 4; reg_id++) {
reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_DATAX(reg_id, flow_id);
mcs_reg_write(mcs, reg, data[reg_id]);
+ }
+ for (reg_id = 0; reg_id < 4; reg_id++) {
reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id);
mcs_reg_write(mcs, reg, mask[reg_id]);
}
@@ -480,6 +482,8 @@ void mcs_flowid_entry_write(struct mcs *mcs, u64 *data, u64 *mask, int flow_id,
for (reg_id = 0; reg_id < 4; reg_id++) {
reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_DATAX(reg_id, flow_id);
mcs_reg_write(mcs, reg, data[reg_id]);
+ }
+ for (reg_id = 0; reg_id < 4; reg_id++) {
reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id);
mcs_reg_write(mcs, reg, mask[reg_id]);
}
--
2.39.2
