The trans_tre_max field of the IPA endpoint structure is only used
to limit the number of fragments allowed for an SKB being prepared
for transmission. Recognizing that, rename the field skb_frag_max,
and reduce its value by 1.
Signed-off-by: Alex Elder <elder@xxxxxxxxxx>
---
drivers/net/ipa/ipa_endpoint.c | 4 ++--
drivers/net/ipa/ipa_endpoint.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 57507a109269b..86ef91f83eb68 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -1020,7 +1020,7 @@ int ipa_endpoint_skb_tx(struct ipa_endpoint *endpoint, struct sk_buff *skb)
* If not, see if we can linearize it before giving up.
*/
nr_frags = skb_shinfo(skb)->nr_frags;
- if (1 + nr_frags > endpoint->trans_tre_max) {
+ if (nr_frags > endpoint->skb_frag_max) {
if (skb_linearize(skb))
return -E2BIG;
nr_frags = 0;
@@ -1721,7 +1721,7 @@ static void ipa_endpoint_setup_one(struct ipa_endpoint *endpoint)
if (endpoint->ee_id != GSI_EE_AP)
return;
- endpoint->trans_tre_max = gsi->channel[channel_id].trans_tre_max;
+ endpoint->skb_frag_max = gsi->channel[channel_id].trans_tre_max - 1;
if (!endpoint->toward_ipa) {
/* RX transactions require a single TRE, so the maximum
* backlog is the same as the maximum outstanding TREs.
diff --git a/drivers/net/ipa/ipa_endpoint.h b/drivers/net/ipa/ipa_endpoint.h
index 01790c60bee8d..28e0a7386fd72 100644
--- a/drivers/net/ipa/ipa_endpoint.h
+++ b/drivers/net/ipa/ipa_endpoint.h
@@ -142,7 +142,7 @@ enum ipa_replenish_flag {
* @endpoint_id: IPA endpoint number
* @toward_ipa: Endpoint direction (true = TX, false = RX)
* @config: Default endpoint configuration
- * @trans_tre_max: Maximum number of TRE descriptors per transaction
+ * @skb_frag_max: Maximum allowed number of TX SKB fragments
* @evt_ring_id: GSI event ring used by the endpoint
* @netdev: Network device pointer, if endpoint uses one
* @replenish_flags: Replenishing state flags
@@ -157,7 +157,7 @@ struct ipa_endpoint {
bool toward_ipa;
struct ipa_endpoint_config config;
- u32 trans_tre_max;
+ u32 skb_frag_max; /* Used for netdev TX only */
u32 evt_ring_id;
/* Net device this endpoint is associated with, if any */
--
2.34.1
