ice: Add infrastructure for mqprio support via ndo_setup_tc

Add infrastructure required for "ndo_setup_tc:qdisc_mqprio".
ice_vsi_setup is modified to configure traffic classes based
on mqprio data received from the stack. This includes low-level
functions to configure min, max rate-limit parameters in hardware
for traffic classes. Each traffic class gets mapped to a hardware
channel (VSI) which can be individually configured with different
bandwidth parameters.

Co-developed-by: Tarun Singh <[email protected]>
Signed-off-by: Tarun Singh <[email protected]>
Signed-off-by: Kiran Patil <[email protected]>
Signed-off-by: Amritha Nambiar <[email protected]>
Signed-off-by: Sudheer Mogilappagari <[email protected]>
Tested-by: Bharathi Sreenivas <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h
index c759a02bfce4..c56dd1749903 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.h
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.h
@@ -287,6 +287,7 @@ struct ice_rx_ring {
 
 	struct rcu_head rcu;		/* to avoid race on free */
 	/* CL4 - 3rd cacheline starts here */
+	struct ice_channel *ch;
 	struct bpf_prog *xdp_prog;
 	struct ice_tx_ring *xdp_ring;
 	struct xsk_buff_pool *xsk_pool;
@@ -328,6 +329,7 @@ struct ice_tx_ring {
 	/* CL3 - 3rd cacheline starts here */
 	struct rcu_head rcu;		/* to avoid race on free */
 	DECLARE_BITMAP(xps_state, ICE_TX_NBITS);	/* XPS Config State */
+	struct ice_channel *ch;
 	struct ice_ptp_tx *tx_tstamps;
 	spinlock_t tx_lock;
 	u32 txq_teid;			/* Added Tx queue TEID */
@@ -352,6 +354,11 @@ static inline void ice_clear_ring_build_skb_ena(struct ice_rx_ring *ring)
 	ring->flags &= ~ICE_RX_FLAGS_RING_BUILD_SKB;
 }
 
+static inline bool ice_ring_ch_enabled(struct ice_tx_ring *ring)
+{
+	return !!ring->ch;
+}
+
 static inline bool ice_ring_is_xdp(struct ice_tx_ring *ring)
 {
 	return !!(ring->flags & ICE_TX_FLAGS_RING_XDP);