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net: ipa: extend endpoints in packet init command

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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>
This commit is contained in:
Alex Elder
2023-01-30 15:01:52 -06:00
committed by Jakub Kicinski
parent 07abde549b
commit c84ddc1197
1 changed files with 9 additions and 4 deletions
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drivers/net/ipa/ipa_cmd.c
+9 -4
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@@ -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);