diff mbox series

[net-next,v2,3/3] net: stmmac: Add support for EST cycle-time-extension

Message ID 20231201055252.1302-4-rohan.g.thomas@intel.com (mailing list archive)
State Accepted
Commit 9e95505fecb6b5a25b5230eb49c4d5b9e18077d0
Delegated to: Netdev Maintainers
Headers show
Series net: stmmac: EST implementation | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1117 this patch: 1117
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 1142 this patch: 1142
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1144 this patch: 1144
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 16 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Rohan G Thomas Dec. 1, 2023, 5:52 a.m. UTC 
Add support for cycle-time-extension. TER GCL-register needs to be
updated with the cycle-time-extension. Width of TER register is EST
time interval width + 7 bits.

Signed-off-by: Rohan G Thomas <rohan.g.thomas@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index d4ee4684bc70..287767f6d671 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -975,6 +975,8 @@  static int tc_setup_taprio(struct stmmac_priv *priv,
 		return -EINVAL;
 	if (!qopt->cycle_time)
 		return -ERANGE;
+	if (qopt->cycle_time_extension >= BIT(wid + 7))
+		return -ERANGE;
 
 	if (!plat->est) {
 		plat->est = devm_kzalloc(priv->device, sizeof(*plat->est),
@@ -1041,6 +1043,8 @@  static int tc_setup_taprio(struct stmmac_priv *priv,
 	priv->plat->est->ctr[0] = do_div(ctr, NSEC_PER_SEC);
 	priv->plat->est->ctr[1] = (u32)ctr;
 
+	priv->plat->est->ter = qopt->cycle_time_extension;
+
 	if (fpe && !priv->dma_cap.fpesel) {
 		mutex_unlock(&priv->plat->est->lock);
 		return -EOPNOTSUPP;