linux-kernel - [PATCH net-next 6/8] net: ipa: greater timer granularity options

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Message-Id: <20230130210158.4126129-7-elder@linaro.org>
Date:   Mon, 30 Jan 2023 15:01:56 -0600
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     caleb.connolly@...aro.org, mka@...omium.org, evgreen@...omium.org,
        andersson@...nel.org, quic_cpratapa@...cinc.com,
        quic_avuyyuru@...cinc.com, quic_jponduru@...cinc.com,
        quic_subashab@...cinc.com, elder@...nel.org,
        netdev@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 6/8] net: ipa: greater timer granularity options

Starting with IPA v5.0, the head-of-line blocking timer has more
than two pulse generators available to define timer granularity.
To prepare for that, change the way the field value is encoded
to use ipa_reg_encode() rather than ipa_reg_bit().

The aggregation granularity selection could (in principle) also use
an additional pulse generator starting with IPA v5.0.  Encode the
AGGR_GRAN_SEL field differently to allow that as well.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/ipa_endpoint.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 8909ba8bfd0e9..c029209191d41 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -965,7 +965,7 @@ static u32 aggr_time_limit_encode(struct ipa *ipa, const struct ipa_reg *reg,
 		ret = ipa_qtime_val(microseconds, max);
 		if (ret < 0) {
 			val = -ret;
-			gran_sel = ipa_reg_bit(reg, AGGR_GRAN_SEL);
+			gran_sel = ipa_reg_encode(reg, AGGR_GRAN_SEL, 1);
 		} else {
 			val = ret;
 			gran_sel = 0;
@@ -1057,7 +1057,7 @@ static u32 hol_block_timer_encode(struct ipa *ipa, const struct ipa_reg *reg,
 		ret = ipa_qtime_val(microseconds, max);
 		if (ret < 0) {
 			val = -ret;
-			gran_sel = ipa_reg_bit(reg, TIMER_GRAN_SEL);
+			gran_sel = ipa_reg_encode(reg, TIMER_GRAN_SEL, 1);
 		} else {
 			val = ret;
 			gran_sel = 0;
-- 
2.34.1