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Commit 05e3fb2a authored by Conner Huff's avatar Conner Huff Committed by Subash Abhinov Kasiviswanathan
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rmnet: advanced flow packet steering 



Provides initial hook framework to develop a
smart flow steering solution. Hook function
added in rmnet data path to allow for offloaded
hash computation.

CRs-Fixed: 2277154
Change-Id: I61bcc321fa2b612308ce54c28953c1df956a0fe5
Acked-by: default avatarRaul Martinez <mraul@qti.qualcomm.com>
Signed-off-by: default avatarSubash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: default avatarConner Huff <chuff@codeaurora.org>
parent 853d7314

drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c

+13 −2
Original line number Diff line number Diff line
@@ -61,12 +61,19 @@ static void rmnet_set_skb_proto(struct sk_buff *skb) 
	}

}



/* Shs hook handler */



int (*rmnet_shs_skb_entry)(struct sk_buff *skb,

			   struct rmnet_port *port) __rcu __read_mostly;

EXPORT_SYMBOL(rmnet_shs_skb_entry);



/* Generic handler */



static void

rmnet_deliver_skb(struct sk_buff *skb)

rmnet_deliver_skb(struct sk_buff *skb, struct rmnet_port *port)

{

	struct rmnet_priv *priv = netdev_priv(skb->dev);

	int (*rmnet_shs_stamp)(struct sk_buff *skb, struct rmnet_port *port);



	skb_reset_transport_header(skb);

	skb_reset_network_header(skb);
@@ -75,6 +82,10 @@ rmnet_deliver_skb(struct sk_buff *skb) 
	skb->pkt_type = PACKET_HOST;

	skb_set_mac_header(skb, 0);



	rmnet_shs_stamp = rcu_dereference(rmnet_shs_skb_entry);

	if (rmnet_shs_stamp)

		rmnet_shs_stamp(skb, port);



	if (!rmnet_check_skb_can_gro(skb))

		gro_cells_receive(&priv->gro_cells, skb);

	else
@@ -126,7 +137,7 @@ __rmnet_map_ingress_handler(struct sk_buff *skb, 
	}



	skb_trim(skb, len);

	rmnet_deliver_skb(skb);

	rmnet_deliver_skb(skb, port);

	return;



free_skb:

drivers/net/ethernet/qualcomm/rmnet/rmnet_private.h

+1 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
/* Constants */

#define RMNET_EGRESS_FORMAT_AGGREGATION         BIT(31)

#define RMNET_INGRESS_FORMAT_DL_MARKER          BIT(30)

#define RMNET_INGRESS_FORMAT_RPS_STAMP          BIG(29)



/* Replace skb->dev to a virtual rmnet device and pass up the stack */

#define RMNET_EPMODE_VND (1)