caif: performance bugfix - allow radio stack to prioritize packets. (4a9f65f6) · Commits · 戴 / test

In the CAIF Payload message the Packet Type indication must be set to UNCLASSIFIED in order to allow packet prioritization in the modem's network stack. Otherwise TCP-Ack is not prioritized in the modems transmit queue. Signed-off-by:

Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

net/caif/cfdgml.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -13,6 +13,7 @@
		#include <net/caif/cfsrvl.h>
		#include <net/caif/cfpkt.h>


		#define container_obj(layr) ((struct cfsrvl *) layr)

		#define DGM_CMD_BIT 0x80
		@@ -83,6 +84,7 @@ static int cfdgml_receive(struct cflayer layr, struct cfpkt pkt)

		static int cfdgml_transmit(struct cflayer layr, struct cfpkt pkt)
		{
		u8 packet_type;
		u32 zero = 0;
		struct caif_payload_info *info;
		struct cfsrvl *service = container_obj(layr);
		@@ -94,7 +96,9 @@ static int cfdgml_transmit(struct cflayer layr, struct cfpkt pkt)
		if (cfpkt_getlen(pkt) > DGM_MTU)
		return -EMSGSIZE;

		cfpkt_add_head(pkt, &zero, 4);
		cfpkt_add_head(pkt, &zero, 3);
		packet_type = 0x08; /* B9 set - UNCLASSIFIED */
		cfpkt_add_head(pkt, &packet_type, 1);

		/* Add info for MUX-layer to route the packet out. */
		info = cfpkt_info(pkt);

Admin message