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From: Jose Abreu <Jose.Abreu@synopsys.com>
To: netdev@vger.kernel.org
Cc: Joao Pinto <Joao.Pinto@synopsys.com>,
	Jose Abreu <Jose.Abreu@synopsys.com>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	"David S. Miller" <davem@davemloft.net>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH net-next 21/26] net: stmmac: Add support for SA Insertion/Replacement in XGMAC cores
Date: Mon,  5 Aug 2019 18:44:48 +0200	[thread overview]
Message-ID: <4fa8eaada09f8aeccf653243e73979fe25b9bdc9.1565022597.git.joabreu@synopsys.com> (raw)
In-Reply-To: <cover.1565022597.git.joabreu@synopsys.com>
In-Reply-To: <cover.1565022597.git.joabreu@synopsys.com>

Add the support for Source Address Insertion and Replacement in XGMAC
cores. Two methods are supported: Descriptor based and register based.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
---
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h       |  2 ++
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c  | 11 +++++++++++
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c | 10 +++++++++-
 drivers/net/ethernet/stmicro/stmmac/hwif.h           |  7 +++++++
 drivers/net/ethernet/stmicro/stmmac/stmmac.h         |  1 +
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c    |  6 ++++++
 6 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
index 11fa3b601033..5a7763be0b17 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
@@ -337,6 +337,8 @@
 #define XGMAC_TDES3_CPC			GENMASK(27, 26)
 #define XGMAC_TDES3_CPC_SHIFT		26
 #define XGMAC_TDES3_TCMSSV		BIT(26)
+#define XGMAC_TDES3_SAIC		GENMASK(25, 23)
+#define XGMAC_TDES3_SAIC_SHIFT		23
 #define XGMAC_TDES3_THL			GENMASK(22, 19)
 #define XGMAC_TDES3_THL_SHIFT		19
 #define XGMAC_TDES3_TSE			BIT(18)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
index 2093c996a090..16e3a0a0c826 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
@@ -1082,6 +1082,16 @@ static int dwxgmac2_flex_pps_config(void __iomem *ioaddr, int index,
 	return 0;
 }
 
+static void dwxgmac2_sarc_configure(void __iomem *ioaddr, int val)
+{
+	u32 value = readl(ioaddr + XGMAC_TX_CONFIG);
+
+	value &= ~XGMAC_CONFIG_SARC;
+	value |= val << XGMAC_CONFIG_SARC_SHIFT;
+
+	writel(value, ioaddr + XGMAC_TX_CONFIG);
+}
+
 const struct stmmac_ops dwxgmac210_ops = {
 	.core_init = dwxgmac2_core_init,
 	.set_mac = dwxgmac2_set_mac,
@@ -1120,6 +1130,7 @@ const struct stmmac_ops dwxgmac210_ops = {
 	.rxp_config = dwxgmac3_rxp_config,
 	.get_mac_tx_timestamp = dwxgmac2_get_mac_tx_timestamp,
 	.flex_pps_config = dwxgmac2_flex_pps_config,
+	.sarc_configure = dwxgmac2_sarc_configure,
 };
 
 int dwxgmac2_setup(struct stmmac_priv *priv)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
index 4cef7a3bf8df..3c2abfb12820 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
@@ -149,7 +149,7 @@ static void dwxgmac2_prepare_tx_desc(struct dma_desc *p, int is_fs, int len,
 
 	p->des2 |= cpu_to_le32(len & XGMAC_TDES2_B1L);
 
-	tdes3 = tot_pkt_len & XGMAC_TDES3_FL;
+	tdes3 |= tot_pkt_len & XGMAC_TDES3_FL;
 	if (is_fs)
 		tdes3 |= XGMAC_TDES3_FD;
 	else
@@ -299,6 +299,13 @@ static void dwxgmac2_set_sec_addr(struct dma_desc *p, dma_addr_t addr)
 	p->des3 = cpu_to_le32(upper_32_bits(addr));
 }
 
+static void dwxgmac2_set_sarc(struct dma_desc *p, u32 sarc_type)
+{
+	sarc_type <<= XGMAC_TDES3_SAIC_SHIFT;
+
+	p->des3 |= cpu_to_le32(sarc_type & XGMAC_TDES3_SAIC);
+}
+
 const struct stmmac_desc_ops dwxgmac210_desc_ops = {
 	.tx_status = dwxgmac2_get_tx_status,
 	.rx_status = dwxgmac2_get_rx_status,
@@ -325,4 +332,5 @@ const struct stmmac_desc_ops dwxgmac210_desc_ops = {
 	.get_rx_hash = dwxgmac2_get_rx_hash,
 	.get_rx_header_len = dwxgmac2_get_rx_header_len,
 	.set_sec_addr = dwxgmac2_set_sec_addr,
+	.set_sarc = dwxgmac2_set_sarc,
 };
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index ed9fda50ee22..e54864cde01b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -91,6 +91,7 @@ struct stmmac_desc_ops {
 			   enum pkt_hash_types *type);
 	int (*get_rx_header_len)(struct dma_desc *p, unsigned int *len);
 	void (*set_sec_addr)(struct dma_desc *p, dma_addr_t addr);
+	void (*set_sarc)(struct dma_desc *p, u32 sarc_type);
 };
 
 #define stmmac_init_rx_desc(__priv, __args...) \
@@ -147,6 +148,8 @@ struct stmmac_desc_ops {
 	stmmac_do_callback(__priv, desc, get_rx_header_len, __args)
 #define stmmac_set_desc_sec_addr(__priv, __args...) \
 	stmmac_do_void_callback(__priv, desc, set_sec_addr, __args)
+#define stmmac_set_desc_sarc(__priv, __args...) \
+	stmmac_do_void_callback(__priv, desc, set_sarc, __args)
 
 struct stmmac_dma_cfg;
 struct dma_features;
@@ -350,6 +353,8 @@ struct stmmac_ops {
 				 bool is_double);
 	/* TX Timestamp */
 	int (*get_mac_tx_timestamp)(struct mac_device_info *hw, u64 *ts);
+	/* Source Address Insertion / Replacement */
+	void (*sarc_configure)(void __iomem *ioaddr, int val);
 };
 
 #define stmmac_core_init(__priv, __args...) \
@@ -426,6 +431,8 @@ struct stmmac_ops {
 	stmmac_do_void_callback(__priv, mac, update_vlan_hash, __args)
 #define stmmac_get_mac_tx_timestamp(__priv, __args...) \
 	stmmac_do_callback(__priv, mac, get_mac_tx_timestamp, __args)
+#define stmmac_sarc_configure(__priv, __args...) \
+	stmmac_do_void_callback(__priv, mac, sarc_configure, __args)
 
 /* PTP and HW Timer helpers */
 struct stmmac_hwtimestamp {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index e91dcb5196f6..39911c8e90c1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -139,6 +139,7 @@ struct stmmac_priv {
 	bool tx_path_in_lpi_mode;
 	bool tso;
 	int sph;
+	u32 sarc_type;
 
 	unsigned int dma_buf_sz;
 	unsigned int rx_copybreak;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 34b6b8227b92..62d206ea7e7a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3010,6 +3010,9 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev)
 		priv->xstats.tx_set_ic_bit++;
 	}
 
+	if (priv->sarc_type)
+		stmmac_set_desc_sarc(priv, first, priv->sarc_type);
+
 	skb_tx_timestamp(skb);
 
 	if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
@@ -3223,6 +3226,9 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 		priv->xstats.tx_set_ic_bit++;
 	}
 
+	if (priv->sarc_type)
+		stmmac_set_desc_sarc(priv, first, priv->sarc_type);
+
 	skb_tx_timestamp(skb);
 
 	/* Ready to fill the first descriptor and set the OWN bit w/o any
-- 
2.7.4


  parent reply	other threads:[~2019-08-05 16:46 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-05 16:44 [PATCH net-next 00/26] net: stmmac: Misc improvements for XGMAC Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 01/26] net: stmmac: xgmac: Fix XGMAC selftests Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 02/26] net: stmmac: xgmac: Implement MMC counters Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 03/26] net: stmmac: Fix issues when number of Queues >= 4 Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 04/26] net: stmmac: xgmac: Implement set_mtl_tx_queue_weight() Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 05/26] net: stmmac: xgmac: Implement tx_queue_prio() Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 06/26] net: stmmac: Implement RSS and enable it in XGMAC core Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 07/26] net: stmmac: selftests: Add RSS test Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 08/26] net: stmmac: Implement VLAN Hash Filtering in XGMAC Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 09/26] net: stmmac: selftests: Add test for VLAN and Double VLAN Filtering Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 10/26] net: stmmac: Implement Safety Features in XGMAC core Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 11/26] net: stmmac: Add Flexible RX Parser support in XGMAC Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 12/26] net: stmmac: tc: Do not return a fragment entry Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 13/26] net: stmmac: selftests: Add a selftest for Flexible RX Parser Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 14/26] net: stmmac: Get correct timestamp values from XGMAC Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 15/26] net: stmmac: Prepare to add Split Header support Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 16/26] net: stmmac: xgmac: Correctly return that RX descriptor is not last one Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 17/26] net: stmmac: Add Split Header support and enable it in XGMAC cores Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 18/26] net: stmmac: dwxgmac: Add Flexible PPS support Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 19/26] net: stmmac: Add ethtool register dump for XGMAC cores Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 20/26] net: stmmac: Add a counter for Split Header packets Jose Abreu
2019-08-05 16:44 ` Jose Abreu [this message]
2019-08-05 16:44 ` [PATCH net-next 22/26] net: stmmac: selftests: Add tests for SA Insertion/Replacement Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 23/26] net: stmmac: xgmac: Add EEE support Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 24/26] net: stmmac: Add support for VLAN Insertion Offload Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 25/26] net: stmmac: selftests: Add selftest for VLAN TX Offload Jose Abreu
2019-08-05 16:44 ` [PATCH net-next 26/26] net: stmmac: selftests: Return proper error code to userspace Jose Abreu
2019-08-05 17:47 ` [PATCH net-next 00/26] net: stmmac: Misc improvements for XGMAC David Miller

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