net/mlx5e: RX, Generalise name of non-linear SKB head size

Make name more generic by dropping MPWRQ from it, as it will be
used also in Legacy RQ in a downstream patch.
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en.h

@@ -112,7 +112,7 @@ struct page_pool;
 
 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW            0x2
 
-#define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD	(256)
+#define MLX5E_RX_MAX_HEAD (256)
 
 #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ                 (64 * 1024)
 #define MLX5E_DEFAULT_LRO_TIMEOUT                       32

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c

@@ -1070,7 +1070,7 @@ struct sk_buff *
 mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
 				   u16 cqe_bcnt, u32 head_offset, u32 page_idx)
 {
-	u16 headlen = min_t(u16, MLX5_MPWRQ_SMALL_PACKET_THRESHOLD, cqe_bcnt);
+	u16 headlen = min_t(u16, MLX5E_RX_MAX_HEAD, cqe_bcnt);
 	struct mlx5e_dma_info *di = &wi->umr.dma_info[page_idx];
 	u32 frag_offset    = head_offset + headlen;
 	u32 byte_cnt       = cqe_bcnt - headlen;
@@ -1078,7 +1078,7 @@ mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *w
 	struct sk_buff *skb;
 
 	skb = napi_alloc_skb(rq->cq.napi,
-			     ALIGN(MLX5_MPWRQ_SMALL_PACKET_THRESHOLD, sizeof(long)));
+			     ALIGN(MLX5E_RX_MAX_HEAD, sizeof(long)));
 	if (unlikely(!skb)) {
 		rq->stats->buff_alloc_err++;
 		return NULL;

drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c

@@ -100,7 +100,7 @@ static int mlx5e_test_link_speed(struct mlx5e_priv *priv)
 
 #ifdef CONFIG_INET
 /* loopback test */
-#define MLX5E_TEST_PKT_SIZE (MLX5_MPWRQ_SMALL_PACKET_THRESHOLD - NET_IP_ALIGN)
+#define MLX5E_TEST_PKT_SIZE (MLX5E_RX_MAX_HEAD - NET_IP_ALIGN)
 static const char mlx5e_test_text[ETH_GSTRING_LEN] = "MLX5E SELF TEST";
 #define MLX5E_TEST_MAGIC 0x5AEED15C001ULL