[PATCH net-next 5/8] net: ipa: define remaining IPA status field values

Alex Elder
2023-01-25T20:46:10Z

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