diff options
| author | Alex Elder <elder@linaro.org> | 2023-01-30 15:01:52 -0600 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-01-31 21:45:51 -0800 |
| commit | c84ddc119704bbd1fd7a5b1cdce3146c5840f07d (patch) | |
| tree | ca1a5fc722c1cf371abbad717684946f9fb1a957 | |
| parent | 07abde549bc1204685b0aec29acc8c75b18ac1f5 (diff) | |
net: ipa: extend endpoints in packet init command
The IP_PACKET_INIT immediate command defines the destination
endpoint to which a packet should be sent. Prior to IPA v5.0, a
5 bit field in that command represents the endpoint, but starting
with IPA v5.0, the field is extended to 8 bits to support more than
32 endpoints.
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ipa/ipa_cmd.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ipa/ipa_cmd.c b/drivers/net/ipa/ipa_cmd.c index aa2b594ca506..5d3a875e50fe 100644 --- a/drivers/net/ipa/ipa_cmd.c +++ b/drivers/net/ipa/ipa_cmd.c @@ -94,11 +94,11 @@ struct ipa_cmd_register_write { /* IPA_CMD_IP_PACKET_INIT */ struct ipa_cmd_ip_packet_init { - u8 dest_endpoint; + u8 dest_endpoint; /* Full 8 bits used for IPA v5.0+ */ u8 reserved[7]; }; -/* Field masks for ipa_cmd_ip_packet_init dest_endpoint field */ +/* Field mask for ipa_cmd_ip_packet_init dest_endpoint field (unused v5.0+) */ #define IPA_PACKET_INIT_DEST_ENDPOINT_FMASK GENMASK(4, 0) /* IPA_CMD_DMA_SHARED_MEM */ @@ -491,8 +491,13 @@ static void ipa_cmd_ip_packet_init_add(struct gsi_trans *trans, u8 endpoint_id) cmd_payload = ipa_cmd_payload_alloc(ipa, &payload_addr); payload = &cmd_payload->ip_packet_init; - payload->dest_endpoint = u8_encode_bits(endpoint_id, - IPA_PACKET_INIT_DEST_ENDPOINT_FMASK); + if (ipa->version < IPA_VERSION_5_0) { + payload->dest_endpoint = + u8_encode_bits(endpoint_id, + IPA_PACKET_INIT_DEST_ENDPOINT_FMASK); + } else { + payload->dest_endpoint = endpoint_id; + } gsi_trans_cmd_add(trans, payload, sizeof(*payload), payload_addr, opcode); |