diff mbox series

[net-next,v3,20/47] net: fman: Store initialization function in match data

Message ID 20220715215954.1449214-21-sean.anderson@seco.com (mailing list archive)
State New, archived
Headers show
Series net: dpaa: Convert to phylink | expand

Commit Message

Sean Anderson July 15, 2022, 9:59 p.m. UTC 
Instead of re-matching the compatible string in order to determine the
init function, just store it in the match data. This also move the setting
of the rest of the functions into init as well. To ensure everything
compiles correctly, we move them to the bottom of the file.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
---

(no changes since v1)

 drivers/net/ethernet/freescale/fman/mac.c | 356 ++++++++++------------
 drivers/net/ethernet/freescale/fman/mac.h |   1 -
 2 files changed, 165 insertions(+), 192 deletions(-)

Comments

Camelia Alexandra Groza July 21, 2022, 12:51 p.m. UTC | #1 
> -----Original Message-----
> From: Sean Anderson <sean.anderson@seco.com>
> Sent: Saturday, July 16, 2022 0:59
> To: David S . Miller <davem@davemloft.net>; Jakub Kicinski
> <kuba@kernel.org>; Madalin Bucur <madalin.bucur@nxp.com>;
> netdev@vger.kernel.org
> Cc: Paolo Abeni <pabeni@redhat.com>; Eric Dumazet
> <edumazet@google.com>; linux-arm-kernel@lists.infradead.org; Russell
> King <linux@armlinux.org.uk>; linux-kernel@vger.kernel.org; Sean Anderson
> <sean.anderson@seco.com>
> Subject: [PATCH net-next v3 20/47] net: fman: Store initialization function in
> match data
> 
> Instead of re-matching the compatible string in order to determine the
> init function, just store it in the match data. This also move the setting
> of the rest of the functions into init as well. 

This last sentence can be rephrased to be clearer. Maybe something like:
The separate setup functions aren't needed anymore. Merge their content
into init as well.

> To ensure everything
> compiles correctly, we move them to the bottom of the file.
> 
> Signed-off-by: Sean Anderson <sean.anderson@seco.com>

Acked-by: Camelia Groza <camelia.groza@nxp.com>
Sean Anderson July 21, 2022, 3:34 p.m. UTC | #2 
On 7/21/22 8:51 AM, Camelia Alexandra Groza wrote:
>> -----Original Message-----
>> From: Sean Anderson <sean.anderson@seco.com>
>> Sent: Saturday, July 16, 2022 0:59
>> To: David S . Miller <davem@davemloft.net>; Jakub Kicinski
>> <kuba@kernel.org>; Madalin Bucur <madalin.bucur@nxp.com>;
>> netdev@vger.kernel.org
>> Cc: Paolo Abeni <pabeni@redhat.com>; Eric Dumazet
>> <edumazet@google.com>; linux-arm-kernel@lists.infradead.org; Russell
>> King <linux@armlinux.org.uk>; linux-kernel@vger.kernel.org; Sean Anderson
>> <sean.anderson@seco.com>
>> Subject: [PATCH net-next v3 20/47] net: fman: Store initialization function in
>> match data
>> 
>> Instead of re-matching the compatible string in order to determine the
>> init function, just store it in the match data. This also move the setting
>> of the rest of the functions into init as well. 
> 
> This last sentence can be rephrased to be clearer. Maybe something like:
> The separate setup functions aren't needed anymore. Merge their content
> into init as well.

You're right, this is not really clear. I will revise the wording.

--Sean

>> To ensure everything
>> compiles correctly, we move them to the bottom of the file.
>> 
>> Signed-off-by: Sean Anderson <sean.anderson@seco.com>
> 
> Acked-by: Camelia Groza <camelia.groza@nxp.com>
>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
index 0af6f6c49284..8dd6a5b12922 100644
--- a/drivers/net/ethernet/freescale/fman/mac.c
+++ b/drivers/net/ethernet/freescale/fman/mac.c
@@ -88,159 +88,6 @@  static int set_fman_mac_params(struct mac_device *mac_dev,
 	return 0;
 }
 
-static int tgec_initialization(struct mac_device *mac_dev,
-			       struct device_node *mac_node)
-{
-	int err;
-	struct mac_priv_s	*priv;
-	struct fman_mac_params	params;
-	u32			version;
-
-	priv = mac_dev->priv;
-
-	err = set_fman_mac_params(mac_dev, &params);
-	if (err)
-		goto _return;
-
-	mac_dev->fman_mac = tgec_config(&params);
-	if (!mac_dev->fman_mac) {
-		err = -EINVAL;
-		goto _return;
-	}
-
-	err = tgec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = tgec_init(mac_dev->fman_mac);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	/* For 10G MAC, disable Tx ECC exception */
-	err = mac_dev->set_exception(mac_dev->fman_mac,
-				     FM_MAC_EX_10G_TX_ECC_ER, false);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = tgec_get_version(mac_dev->fman_mac, &version);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	dev_info(priv->dev, "FMan XGEC version: 0x%08x\n", version);
-
-	goto _return;
-
-_return_fm_mac_free:
-	tgec_free(mac_dev->fman_mac);
-
-_return:
-	return err;
-}
-
-static int dtsec_initialization(struct mac_device *mac_dev,
-				struct device_node *mac_node)
-{
-	int			err;
-	struct mac_priv_s	*priv;
-	struct fman_mac_params	params;
-	u32			version;
-
-	priv = mac_dev->priv;
-
-	err = set_fman_mac_params(mac_dev, &params);
-	if (err)
-		goto _return;
-	params.internal_phy_node = of_parse_phandle(mac_node, "tbi-handle", 0);
-
-	mac_dev->fman_mac = dtsec_config(&params);
-	if (!mac_dev->fman_mac) {
-		err = -EINVAL;
-		goto _return;
-	}
-
-	err = dtsec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = dtsec_cfg_pad_and_crc(mac_dev->fman_mac, true);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = dtsec_init(mac_dev->fman_mac);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	/* For 1G MAC, disable by default the MIB counters overflow interrupt */
-	err = mac_dev->set_exception(mac_dev->fman_mac,
-				     FM_MAC_EX_1G_RX_MIB_CNT_OVFL, false);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = dtsec_get_version(mac_dev->fman_mac, &version);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	dev_info(priv->dev, "FMan dTSEC version: 0x%08x\n", version);
-
-	goto _return;
-
-_return_fm_mac_free:
-	dtsec_free(mac_dev->fman_mac);
-
-_return:
-	return err;
-}
-
-static int memac_initialization(struct mac_device *mac_dev,
-				struct device_node *mac_node)
-{
-	int			 err;
-	struct mac_priv_s	*priv;
-	struct fman_mac_params	 params;
-
-	priv = mac_dev->priv;
-
-	err = set_fman_mac_params(mac_dev, &params);
-	if (err)
-		goto _return;
-	params.internal_phy_node = of_parse_phandle(mac_node, "pcsphy-handle", 0);
-
-	if (priv->max_speed == SPEED_10000)
-		params.phy_if = PHY_INTERFACE_MODE_XGMII;
-
-	mac_dev->fman_mac = memac_config(&params);
-	if (!mac_dev->fman_mac) {
-		err = -EINVAL;
-		goto _return;
-	}
-
-	err = memac_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = memac_cfg_reset_on_init(mac_dev->fman_mac, true);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = memac_cfg_fixed_link(mac_dev->fman_mac, priv->fixed_link);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = memac_init(mac_dev->fman_mac);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	dev_info(priv->dev, "FMan MEMAC\n");
-
-	goto _return;
-
-_return_fm_mac_free:
-	memac_free(mac_dev->fman_mac);
-
-_return:
-	return err;
-}
-
 static int set_multi(struct net_device *net_dev, struct mac_device *mac_dev)
 {
 	struct mac_priv_s	*priv;
@@ -418,27 +265,15 @@  static void adjust_link_memac(struct mac_device *mac_dev)
 			err);
 }
 
-static void setup_dtsec(struct mac_device *mac_dev)
+static int tgec_initialization(struct mac_device *mac_dev,
+			       struct device_node *mac_node)
 {
-	mac_dev->init			= dtsec_initialization;
-	mac_dev->set_promisc		= dtsec_set_promiscuous;
-	mac_dev->change_addr		= dtsec_modify_mac_address;
-	mac_dev->add_hash_mac_addr	= dtsec_add_hash_mac_address;
-	mac_dev->remove_hash_mac_addr	= dtsec_del_hash_mac_address;
-	mac_dev->set_tx_pause		= dtsec_set_tx_pause_frames;
-	mac_dev->set_rx_pause		= dtsec_accept_rx_pause_frames;
-	mac_dev->set_exception		= dtsec_set_exception;
-	mac_dev->set_allmulti		= dtsec_set_allmulti;
-	mac_dev->set_tstamp		= dtsec_set_tstamp;
-	mac_dev->set_multi		= set_multi;
-	mac_dev->adjust_link            = adjust_link_dtsec;
-	mac_dev->enable			= dtsec_enable;
-	mac_dev->disable		= dtsec_disable;
-}
+	int err;
+	struct mac_priv_s	*priv;
+	struct fman_mac_params	params;
+	u32			version;
 
-static void setup_tgec(struct mac_device *mac_dev)
-{
-	mac_dev->init			= tgec_initialization;
+	priv = mac_dev->priv;
 	mac_dev->set_promisc		= tgec_set_promiscuous;
 	mac_dev->change_addr		= tgec_modify_mac_address;
 	mac_dev->add_hash_mac_addr	= tgec_add_hash_mac_address;
@@ -452,11 +287,121 @@  static void setup_tgec(struct mac_device *mac_dev)
 	mac_dev->adjust_link            = adjust_link_void;
 	mac_dev->enable			= tgec_enable;
 	mac_dev->disable		= tgec_disable;
+
+	err = set_fman_mac_params(mac_dev, &params);
+	if (err)
+		goto _return;
+
+	mac_dev->fman_mac = tgec_config(&params);
+	if (!mac_dev->fman_mac) {
+		err = -EINVAL;
+		goto _return;
+	}
+
+	err = tgec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = tgec_init(mac_dev->fman_mac);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	/* For 10G MAC, disable Tx ECC exception */
+	err = mac_dev->set_exception(mac_dev->fman_mac,
+				     FM_MAC_EX_10G_TX_ECC_ER, false);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = tgec_get_version(mac_dev->fman_mac, &version);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	dev_info(priv->dev, "FMan XGEC version: 0x%08x\n", version);
+
+	goto _return;
+
+_return_fm_mac_free:
+	tgec_free(mac_dev->fman_mac);
+
+_return:
+	return err;
+}
+
+static int dtsec_initialization(struct mac_device *mac_dev,
+				struct device_node *mac_node)
+{
+	int			err;
+	struct mac_priv_s	*priv;
+	struct fman_mac_params	params;
+	u32			version;
+
+	priv = mac_dev->priv;
+	mac_dev->set_promisc		= dtsec_set_promiscuous;
+	mac_dev->change_addr		= dtsec_modify_mac_address;
+	mac_dev->add_hash_mac_addr	= dtsec_add_hash_mac_address;
+	mac_dev->remove_hash_mac_addr	= dtsec_del_hash_mac_address;
+	mac_dev->set_tx_pause		= dtsec_set_tx_pause_frames;
+	mac_dev->set_rx_pause		= dtsec_accept_rx_pause_frames;
+	mac_dev->set_exception		= dtsec_set_exception;
+	mac_dev->set_allmulti		= dtsec_set_allmulti;
+	mac_dev->set_tstamp		= dtsec_set_tstamp;
+	mac_dev->set_multi		= set_multi;
+	mac_dev->adjust_link            = adjust_link_dtsec;
+	mac_dev->enable			= dtsec_enable;
+	mac_dev->disable		= dtsec_disable;
+
+	err = set_fman_mac_params(mac_dev, &params);
+	if (err)
+		goto _return;
+	params.internal_phy_node = of_parse_phandle(mac_node, "tbi-handle", 0);
+
+	mac_dev->fman_mac = dtsec_config(&params);
+	if (!mac_dev->fman_mac) {
+		err = -EINVAL;
+		goto _return;
+	}
+
+	err = dtsec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = dtsec_cfg_pad_and_crc(mac_dev->fman_mac, true);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = dtsec_init(mac_dev->fman_mac);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	/* For 1G MAC, disable by default the MIB counters overflow interrupt */
+	err = mac_dev->set_exception(mac_dev->fman_mac,
+				     FM_MAC_EX_1G_RX_MIB_CNT_OVFL, false);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = dtsec_get_version(mac_dev->fman_mac, &version);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	dev_info(priv->dev, "FMan dTSEC version: 0x%08x\n", version);
+
+	goto _return;
+
+_return_fm_mac_free:
+	dtsec_free(mac_dev->fman_mac);
+
+_return:
+	return err;
 }
 
-static void setup_memac(struct mac_device *mac_dev)
+static int memac_initialization(struct mac_device *mac_dev,
+				struct device_node *mac_node)
 {
-	mac_dev->init			= memac_initialization;
+	int			 err;
+	struct mac_priv_s	*priv;
+	struct fman_mac_params	 params;
+
+	priv = mac_dev->priv;
 	mac_dev->set_promisc		= memac_set_promiscuous;
 	mac_dev->change_addr		= memac_modify_mac_address;
 	mac_dev->add_hash_mac_addr	= memac_add_hash_mac_address;
@@ -470,6 +415,46 @@  static void setup_memac(struct mac_device *mac_dev)
 	mac_dev->adjust_link            = adjust_link_memac;
 	mac_dev->enable			= memac_enable;
 	mac_dev->disable		= memac_disable;
+
+	err = set_fman_mac_params(mac_dev, &params);
+	if (err)
+		goto _return;
+	params.internal_phy_node = of_parse_phandle(mac_node, "pcsphy-handle", 0);
+
+	if (priv->max_speed == SPEED_10000)
+		params.phy_if = PHY_INTERFACE_MODE_XGMII;
+
+	mac_dev->fman_mac = memac_config(&params);
+	if (!mac_dev->fman_mac) {
+		err = -EINVAL;
+		goto _return;
+	}
+
+	err = memac_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = memac_cfg_reset_on_init(mac_dev->fman_mac, true);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = memac_cfg_fixed_link(mac_dev->fman_mac, priv->fixed_link);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	err = memac_init(mac_dev->fman_mac);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	dev_info(priv->dev, "FMan MEMAC\n");
+
+	goto _return;
+
+_return_fm_mac_free:
+	memac_free(mac_dev->fman_mac);
+
+_return:
+	return err;
 }
 
 #define DTSEC_SUPPORTED \
@@ -546,9 +531,9 @@  static struct platform_device *dpaa_eth_add_device(int fman_id,
 }
 
 static const struct of_device_id mac_match[] = {
-	{ .compatible	= "fsl,fman-dtsec" },
-	{ .compatible	= "fsl,fman-xgec" },
-	{ .compatible	= "fsl,fman-memac" },
+	{ .compatible	= "fsl,fman-dtsec", .data = dtsec_initialization },
+	{ .compatible	= "fsl,fman-xgec", .data = tgec_initialization },
+	{ .compatible	= "fsl,fman-memac", .data = memac_initialization },
 	{}
 };
 MODULE_DEVICE_TABLE(of, mac_match);
@@ -556,6 +541,7 @@  MODULE_DEVICE_TABLE(of, mac_match);
 static int mac_probe(struct platform_device *_of_dev)
 {
 	int			 err, i, nph;
+	int (*init)(struct mac_device *mac_dev, struct device_node *mac_node);
 	struct device		*dev;
 	struct device_node	*mac_node, *dev_node;
 	struct mac_device	*mac_dev;
@@ -568,6 +554,7 @@  static int mac_probe(struct platform_device *_of_dev)
 
 	dev = &_of_dev->dev;
 	mac_node = dev->of_node;
+	init = of_device_get_match_data(dev);
 
 	mac_dev = devm_kzalloc(dev, sizeof(*mac_dev), GFP_KERNEL);
 	if (!mac_dev) {
@@ -584,19 +571,6 @@  static int mac_probe(struct platform_device *_of_dev)
 	mac_dev->priv = priv;
 	priv->dev = dev;
 
-	if (of_device_is_compatible(mac_node, "fsl,fman-dtsec")) {
-		setup_dtsec(mac_dev);
-	} else if (of_device_is_compatible(mac_node, "fsl,fman-xgec")) {
-		setup_tgec(mac_dev);
-	} else if (of_device_is_compatible(mac_node, "fsl,fman-memac")) {
-		setup_memac(mac_dev);
-	} else {
-		dev_err(dev, "MAC node (%pOF) contains unsupported MAC\n",
-			mac_node);
-		err = -EINVAL;
-		goto _return;
-	}
-
 	INIT_LIST_HEAD(&priv->mc_addr_list);
 
 	/* Get the FM node */
@@ -782,7 +756,7 @@  static int mac_probe(struct platform_device *_of_dev)
 		put_device(&phy->mdio.dev);
 	}
 
-	err = mac_dev->init(mac_dev, mac_node);
+	err = init(mac_dev, mac_node);
 	if (err < 0) {
 		dev_err(dev, "mac_dev->init() = %d\n", err);
 		of_node_put(mac_dev->phy_node);
diff --git a/drivers/net/ethernet/freescale/fman/mac.h b/drivers/net/ethernet/freescale/fman/mac.h
index e4329c7d5001..fed3835a8473 100644
--- a/drivers/net/ethernet/freescale/fman/mac.h
+++ b/drivers/net/ethernet/freescale/fman/mac.h
@@ -35,7 +35,6 @@  struct mac_device {
 	bool promisc;
 	bool allmulti;
 
-	int (*init)(struct mac_device *mac_dev, struct device_node *mac_node);
 	int (*enable)(struct fman_mac *mac_dev);
 	int (*disable)(struct fman_mac *mac_dev);
 	void (*adjust_link)(struct mac_device *mac_dev);