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Message-Id: <20230324175136.321588-11-seanga2@gmail.com>
Date: Fri, 24 Mar 2023 13:51:36 -0400
From: Sean Anderson <seanga2@...il.com>
To: "David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org
Cc: Simon Horman <simon.horman@...igine.com>,
linux-kernel@...r.kernel.org, Sean Anderson <seanga2@...il.com>
Subject: [PATCH net-next v4 10/10] net: sunhme: Consolidate common probe tasks
Most of the second half of the PCI/SBUS probe functions are the same.
Consolidate them into a common function.
Signed-off-by: Sean Anderson <seanga2@...il.com>
---
Changes in v4:
- Use correct SBUS/PCI accessors
- Rework hme_version to set the default in pci/sbus_probe and override it (if
necessary) in common_probe
drivers/net/ethernet/sun/sunhme.c | 157 ++++++++++++------------------
1 file changed, 64 insertions(+), 93 deletions(-)
diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index bd1925f575c4..ec85aef35bf9 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -2430,6 +2430,58 @@ static void happy_meal_addr_init(struct happy_meal *hp,
}
}
+static int happy_meal_common_probe(struct happy_meal *hp,
+ struct device_node *dp)
+{
+ struct net_device *dev = hp->dev;
+ int err;
+
+#ifdef CONFIG_SPARC
+ hp->hm_revision = of_getintprop_default(dp, "hm-rev", hp->hm_revision);
+#endif
+
+ /* Now enable the feature flags we can. */
+ if (hp->hm_revision == 0x20 || hp->hm_revision == 0x21)
+ hp->happy_flags |= HFLAG_20_21;
+ else if (hp->hm_revision != 0xa0)
+ hp->happy_flags |= HFLAG_NOT_A0;
+
+ hp->happy_block = dmam_alloc_coherent(hp->dma_dev, PAGE_SIZE,
+ &hp->hblock_dvma, GFP_KERNEL);
+ if (!hp->happy_block)
+ return -ENOMEM;
+
+ /* Force check of the link first time we are brought up. */
+ hp->linkcheck = 0;
+
+ /* Force timer state to 'asleep' with count of zero. */
+ hp->timer_state = asleep;
+ hp->timer_ticks = 0;
+
+ timer_setup(&hp->happy_timer, happy_meal_timer, 0);
+
+ dev->netdev_ops = &hme_netdev_ops;
+ dev->watchdog_timeo = 5 * HZ;
+ dev->ethtool_ops = &hme_ethtool_ops;
+
+ /* Happy Meal can do it all... */
+ dev->hw_features = NETIF_F_SG | NETIF_F_HW_CSUM;
+ dev->features |= dev->hw_features | NETIF_F_RXCSUM;
+
+
+ /* Grrr, Happy Meal comes up by default not advertising
+ * full duplex 100baseT capabilities, fix this.
+ */
+ spin_lock_irq(&hp->happy_lock);
+ happy_meal_set_initial_advertisement(hp);
+ spin_unlock_irq(&hp->happy_lock);
+
+ err = devm_register_netdev(hp->dma_dev, dev);
+ if (err)
+ dev_err(hp->dma_dev, "Cannot register net device, aborting.\n");
+ return err;
+}
+
#ifdef CONFIG_SBUS
static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)
{
@@ -2511,50 +2563,18 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)
goto err_out_clear_quattro;
}
- hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff);
- if (hp->hm_revision == 0xff)
- hp->hm_revision = 0xa0;
-
- /* Now enable the feature flags we can. */
- if (hp->hm_revision == 0x20 || hp->hm_revision == 0x21)
- hp->happy_flags = HFLAG_20_21;
- else if (hp->hm_revision != 0xa0)
- hp->happy_flags = HFLAG_NOT_A0;
+ hp->hm_revision = 0xa0;
if (qp != NULL)
hp->happy_flags |= HFLAG_QUATTRO;
+ hp->irq = op->archdata.irqs[0];
+
/* Get the supported DVMA burst sizes from our Happy SBUS. */
hp->happy_bursts = of_getintprop_default(sbus_dp,
"burst-sizes", 0x00);
- hp->happy_block = dmam_alloc_coherent(&op->dev, PAGE_SIZE,
- &hp->hblock_dvma, GFP_KERNEL);
- if (!hp->happy_block) {
- err = -ENOMEM;
- goto err_out_clear_quattro;
- }
-
- /* Force check of the link first time we are brought up. */
- hp->linkcheck = 0;
-
- /* Force timer state to 'asleep' with count of zero. */
- hp->timer_state = asleep;
- hp->timer_ticks = 0;
-
- timer_setup(&hp->happy_timer, happy_meal_timer, 0);
-
- dev->netdev_ops = &hme_netdev_ops;
- dev->watchdog_timeo = 5*HZ;
- dev->ethtool_ops = &hme_ethtool_ops;
-
- /* Happy Meal can do it all... */
- dev->hw_features = NETIF_F_SG | NETIF_F_HW_CSUM;
- dev->features |= dev->hw_features | NETIF_F_RXCSUM;
-
- hp->irq = op->archdata.irqs[0];
-
-#if defined(CONFIG_SBUS) && defined(CONFIG_PCI)
+#ifdef CONFIG_PCI
/* Hook up SBUS register/descriptor accessors. */
hp->read_desc32 = sbus_hme_read_desc32;
hp->write_txd = sbus_hme_write_txd;
@@ -2563,18 +2583,9 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)
hp->write32 = sbus_hme_write32;
#endif
- /* Grrr, Happy Meal comes up by default not advertising
- * full duplex 100baseT capabilities, fix this.
- */
- spin_lock_irq(&hp->happy_lock);
- happy_meal_set_initial_advertisement(hp);
- spin_unlock_irq(&hp->happy_lock);
-
- err = devm_register_netdev(&op->dev, dev);
- if (err) {
- dev_err(&op->dev, "Cannot register net device, aborting.\n");
+ err = happy_meal_common_probe(hp, dp);
+ if (err)
goto err_out_clear_quattro;
- }
platform_set_drvdata(op, hp);
@@ -2689,20 +2700,10 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
hp->bigmacregs = (hpreg_base + 0x6000UL);
hp->tcvregs = (hpreg_base + 0x7000UL);
-#ifdef CONFIG_SPARC
- hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff);
- if (hp->hm_revision == 0xff)
+ if (IS_ENABLED(CONFIG_SPARC))
hp->hm_revision = 0xc0 | (pdev->revision & 0x0f);
-#else
- /* works with this on non-sparc hosts */
- hp->hm_revision = 0x20;
-#endif
-
- /* Now enable the feature flags we can. */
- if (hp->hm_revision == 0x20 || hp->hm_revision == 0x21)
- hp->happy_flags = HFLAG_20_21;
- else if (hp->hm_revision != 0xa0 && hp->hm_revision != 0xc0)
- hp->happy_flags = HFLAG_NOT_A0;
+ else
+ hp->hm_revision = 0x20;
if (qp != NULL)
hp->happy_flags |= HFLAG_QUATTRO;
@@ -2714,30 +2715,9 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
/* Assume PCI happy meals can handle all burst sizes. */
hp->happy_bursts = DMA_BURSTBITS;
#endif
-
- hp->happy_block = dmam_alloc_coherent(&pdev->dev, PAGE_SIZE,
- &hp->hblock_dvma, GFP_KERNEL);
- if (!hp->happy_block) {
- err = -ENOMEM;
- goto err_out_clear_quattro;
- }
-
- hp->linkcheck = 0;
- hp->timer_state = asleep;
- hp->timer_ticks = 0;
-
- timer_setup(&hp->happy_timer, happy_meal_timer, 0);
-
hp->irq = pdev->irq;
- dev->netdev_ops = &hme_netdev_ops;
- dev->watchdog_timeo = 5*HZ;
- dev->ethtool_ops = &hme_ethtool_ops;
- /* Happy Meal can do it all... */
- dev->hw_features = NETIF_F_SG | NETIF_F_HW_CSUM;
- dev->features |= dev->hw_features | NETIF_F_RXCSUM;
-
-#if defined(CONFIG_SBUS) && defined(CONFIG_PCI)
+#ifdef CONFIG_SBUS
/* Hook up PCI register/descriptor accessors. */
hp->read_desc32 = pci_hme_read_desc32;
hp->write_txd = pci_hme_write_txd;
@@ -2746,18 +2726,9 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
hp->write32 = pci_hme_write32;
#endif
- /* Grrr, Happy Meal comes up by default not advertising
- * full duplex 100baseT capabilities, fix this.
- */
- spin_lock_irq(&hp->happy_lock);
- happy_meal_set_initial_advertisement(hp);
- spin_unlock_irq(&hp->happy_lock);
-
- err = devm_register_netdev(&pdev->dev, dev);
- if (err) {
- dev_err(&pdev->dev, "Cannot register net device, aborting.\n");
+ err = happy_meal_common_probe(hp, dp);
+ if (err)
goto err_out_clear_quattro;
- }
pci_set_drvdata(pdev, hp);
--
2.37.1
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