From:   Alex Elder <elder@linaro.org>
To:     davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com
Cc:     caleb.connolly@linaro.org, mka@chromium.org, evgreen@chromium.org,
        andersson@kernel.org, quic_cpratapa@quicinc.com,
        quic_avuyyuru@quicinc.com, quic_jponduru@quicinc.com,
        quic_subashab@quicinc.com, elder@kernel.org,
        netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH net-next 5/8] net: ipa: define remaining IPA status field values
Date:   Wed, 25 Jan 2023 14:45:42 -0600
Message-Id: <20230125204545.3788155-6-elder@linaro.org>
In-Reply-To: <20230125204545.3788155-1-elder@linaro.org>
References: <20230125204545.3788155-1-elder@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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Define the remaining values for opcode and exception fields in the
IPA packet status structure.  Most of these values are powers-of-2,
suggesting they are meant to be used as bitmasks, but that is not
the case.  Add comments to be clear about this, and express the
values in decimal format.

Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/net/ipa/ipa_endpoint.c | 31 ++++++++++++++++++++++---------
 1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 178934f131be5..ee3c29b1efea9 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -34,18 +34,31 @@
 
 #define IPA_ENDPOINT_RESET_AGGR_RETRY_MAX	3
 
-/** enum ipa_status_opcode - status element opcode hardware values */
-enum ipa_status_opcode {
-	IPA_STATUS_OPCODE_PACKET		= 0x01,
-	IPA_STATUS_OPCODE_DROPPED_PACKET	= 0x04,
-	IPA_STATUS_OPCODE_SUSPENDED_PACKET	= 0x08,
-	IPA_STATUS_OPCODE_PACKET_2ND_PASS	= 0x40,
+/** enum ipa_status_opcode - IPA status opcode field hardware values */
+enum ipa_status_opcode {				/* *Not* a bitmask */
+	IPA_STATUS_OPCODE_PACKET		= 1,
+	IPA_STATUS_OPCODE_NEW_RULE_PACKET	= 2,
+	IPA_STATUS_OPCODE_DROPPED_PACKET	= 4,
+	IPA_STATUS_OPCODE_SUSPENDED_PACKET	= 8,
+	IPA_STATUS_OPCODE_LOG			= 16,
+	IPA_STATUS_OPCODE_DCMP			= 32,
+	IPA_STATUS_OPCODE_PACKET_2ND_PASS	= 64,
 };
 
-/** enum ipa_status_exception - status element exception type */
-enum ipa_status_exception {
+/** enum ipa_status_exception - IPA status exception field hardware values */
+enum ipa_status_exception {				/* *Not* a bitmask */
 	/* 0 means no exception */
-	IPA_STATUS_EXCEPTION_DEAGGR		= 0x01,
+	IPA_STATUS_EXCEPTION_DEAGGR		= 1,
+	IPA_STATUS_EXCEPTION_IPTYPE		= 4,
+	IPA_STATUS_EXCEPTION_PACKET_LENGTH	= 8,
+	IPA_STATUS_EXCEPTION_FRAG_RULE_MISS	= 16,
+	IPA_STATUS_EXCEPTION_SW_FILTER		= 32,
+	IPA_STATUS_EXCEPTION_NAT		= 64,		/* IPv4 */
+	IPA_STATUS_EXCEPTION_IPV6_CONN_TRACK	= 64,		/* IPv6 */
+	IPA_STATUS_EXCEPTION_UC			= 128,
+	IPA_STATUS_EXCEPTION_INVALID_ENDPOINT	= 129,
+	IPA_STATUS_EXCEPTION_HEADER_INSERT	= 136,
+	IPA_STATUS_EXCEPTION_CHEKCSUM		= 229,
 };
 
 /** enum ipa_status_mask - IPA status mask field bitmask hardware values */
-- 
2.34.1