Commit 317595d2 authored Jun 10, 2022 by Alex Elder Committed by David S. Miller Jun 13, 2022

net: ipa: rename endpoint->trans_tre_max



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@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 88e03057

drivers/net/ipa/ipa_endpoint.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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.

drivers/net/ipa/ipa_endpoint.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -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 */