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 <[email protected]>
---
drivers/net/ipa/ipa_endpoint.c | 8 ++++++--
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 0f489723689c5..3ad97fbf6884e 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 39a12c249f66d..3ab62fb892ec6 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;
};
/**
--
2.32.0