netdev - [PATCH bpf-next 05/13] ice: inline eop check

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Message-Id: <20230131204506.219292-6-maciej.fijalkowski@intel.com>
Date:   Tue, 31 Jan 2023 21:44:58 +0100
From:   Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To:     intel-wired-lan@...ts.osuosl.org
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        anthony.l.nguyen@...el.com, magnus.karlsson@...el.com,
        tirthendu.sarkar@...el.com, alexandr.lobakin@...el.com,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: [PATCH bpf-next 05/13] ice: inline eop check

This might be in future used by ZC driver and might potentially yield a
minor performance boost. While at it, constify arguments that
ice_is_non_eop() takes, since they are pointers and this will help compiler
while generating asm.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_txrx.c     | 21 ------------------
 drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 22 +++++++++++++++++++
 2 files changed, 22 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 1139b16f57cc..b4dc80295b12 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -1065,27 +1065,6 @@ ice_put_rx_buf(struct ice_rx_ring *rx_ring, struct ice_rx_buf *rx_buf)
 	rx_buf->page = NULL;
 }
 
-/**
- * ice_is_non_eop - process handling of non-EOP buffers
- * @rx_ring: Rx ring being processed
- * @rx_desc: Rx descriptor for current buffer
- *
- * If the buffer is an EOP buffer, this function exits returning false,
- * otherwise return true indicating that this is in fact a non-EOP buffer.
- */
-static bool
-ice_is_non_eop(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc)
-{
-	/* if we are the last buffer then there is nothing else to do */
-#define ICE_RXD_EOF BIT(ICE_RX_FLEX_DESC_STATUS0_EOF_S)
-	if (likely(ice_test_staterr(rx_desc->wb.status_error0, ICE_RXD_EOF)))
-		return false;
-
-	rx_ring->ring_stats->rx_stats.non_eop_descs++;
-
-	return true;
-}
-
 /**
  * ice_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf
  * @rx_ring: Rx descriptor ring to transact packets on
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
index c7d2954dc9ea..30e3cffdb2f1 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h
@@ -21,6 +21,28 @@ ice_test_staterr(__le16 status_err_n, const u16 stat_err_bits)
 	return !!(status_err_n & cpu_to_le16(stat_err_bits));
 }
 
+/**
+ * ice_is_non_eop - process handling of non-EOP buffers
+ * @rx_ring: Rx ring being processed
+ * @rx_desc: Rx descriptor for current buffer
+ *
+ * If the buffer is an EOP buffer, this function exits returning false,
+ * otherwise return true indicating that this is in fact a non-EOP buffer.
+ */
+static inline bool
+ice_is_non_eop(const struct ice_rx_ring *rx_ring,
+	       const union ice_32b_rx_flex_desc *rx_desc)
+{
+	/* if we are the last buffer then there is nothing else to do */
+#define ICE_RXD_EOF BIT(ICE_RX_FLEX_DESC_STATUS0_EOF_S)
+	if (likely(ice_test_staterr(rx_desc->wb.status_error0, ICE_RXD_EOF)))
+		return false;
+
+	rx_ring->ring_stats->rx_stats.non_eop_descs++;
+
+	return true;
+}
+
 static inline __le64
 ice_build_ctob(u64 td_cmd, u64 td_offset, unsigned int size, u64 td_tag)
 {
-- 
2.34.1