diff options
| author | Alex Elder <elder@linaro.org> | 2022-05-21 19:32:15 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-05-22 20:46:12 +0100 |
| commit | 153213f0554d5053d5f9385ae6b4f116c4dc1fb8 (patch) | |
| tree | bf28f0032db70340c201f450b0dd4ea64d523d94 | |
| parent | 60f243ad1426b796efed750937733b0e410f9257 (diff) | |
net: ipa: make endpoint HOLB drop configurable
Add a new Boolean flag for RX endpoints defining whether HOLB drop
is initially enabled or disabled for the endpoint. All existing AP
endpoints should have HOLB drop disabled.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ipa/ipa_endpoint.c | 8 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_endpoint.h | 2 |
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c index 0f489723689c..3ad97fbf6884 100644 --- a/drivers/net/ipa/ipa_endpoint.c +++ b/drivers/net/ipa/ipa_endpoint.c @@ -1554,8 +1554,12 @@ static void ipa_endpoint_program(struct ipa_endpoint *endpoint) ipa_endpoint_init_hdr_metadata_mask(endpoint); ipa_endpoint_init_mode(endpoint); ipa_endpoint_init_aggr(endpoint); - if (!endpoint->toward_ipa) - ipa_endpoint_init_hol_block_disable(endpoint); + if (!endpoint->toward_ipa) { + if (endpoint->config.rx.holb_drop) + ipa_endpoint_init_hol_block_enable(endpoint, 0); + else + ipa_endpoint_init_hol_block_disable(endpoint); + } ipa_endpoint_init_deaggr(endpoint); ipa_endpoint_init_rsrc_grp(endpoint); ipa_endpoint_init_seq(endpoint); diff --git a/drivers/net/ipa/ipa_endpoint.h b/drivers/net/ipa/ipa_endpoint.h index 39a12c249f66..3ab62fb892ec 100644 --- a/drivers/net/ipa/ipa_endpoint.h +++ b/drivers/net/ipa/ipa_endpoint.h @@ -60,6 +60,7 @@ struct ipa_endpoint_tx { * @buffer_size: requested receive buffer size (bytes) * @pad_align: power-of-2 boundary to which packet payload is aligned * @aggr_close_eof: whether aggregation closes on end-of-frame + * @holb_drop: whether to drop packets to avoid head-of-line blocking * * With each packet it transfers, the IPA hardware can perform certain * transformations of its packet data. One of these is adding pad bytes @@ -74,6 +75,7 @@ struct ipa_endpoint_rx { u32 buffer_size; u32 pad_align; bool aggr_close_eof; + bool holb_drop; }; /** |