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Subject[RFC net-next v2 07/14] net: stmmac: Switch MMC functions to HWIF callbacks
Date
XGMAC has a different MMC module. Lets use HWIF callbacks for MMC module
so that correct callbacks are automatically selected.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
---
drivers/net/ethernet/stmicro/stmmac/common.h | 1 +
drivers/net/ethernet/stmicro/stmmac/hwif.c | 9 +++++++++
drivers/net/ethernet/stmicro/stmmac/hwif.h | 17 +++++++++++++++++
drivers/net/ethernet/stmicro/stmmac/mmc.h | 4 ----
drivers/net/ethernet/stmicro/stmmac/mmc_core.c | 13 ++++++++++---
drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++--
7 files changed, 40 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 272b9ca66314..1961fe9144ca 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -424,6 +424,7 @@ struct mac_device_info {
const struct stmmac_mode_ops *mode;
const struct stmmac_hwtimestamp *ptp;
const struct stmmac_tc_ops *tc;
+ const struct stmmac_mmc_ops *mmc;
struct mii_regs mii; /* MII register Addresses */
struct mac_link link;
void __iomem *pcsr; /* vpointer to device CSRs */
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.c b/drivers/net/ethernet/stmicro/stmmac/hwif.c
index 81b966a8261b..6c61b753b55e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.c
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.c
@@ -81,6 +81,7 @@ static const struct stmmac_hwif_entry {
const void *hwtimestamp;
const void *mode;
const void *tc;
+ const void *mmc;
int (*setup)(struct stmmac_priv *priv);
int (*quirks)(struct stmmac_priv *priv);
} stmmac_hw[] = {
@@ -100,6 +101,7 @@ static const struct stmmac_hwif_entry {
.hwtimestamp = &stmmac_ptp,
.mode = NULL,
.tc = NULL,
+ .mmc = &dwmac_mmc_ops,
.setup = dwmac100_setup,
.quirks = stmmac_dwmac1_quirks,
}, {
@@ -117,6 +119,7 @@ static const struct stmmac_hwif_entry {
.hwtimestamp = &stmmac_ptp,
.mode = NULL,
.tc = NULL,
+ .mmc = &dwmac_mmc_ops,
.setup = dwmac1000_setup,
.quirks = stmmac_dwmac1_quirks,
}, {
@@ -134,6 +137,7 @@ static const struct stmmac_hwif_entry {
.hwtimestamp = &stmmac_ptp,
.mode = NULL,
.tc = &dwmac510_tc_ops,
+ .mmc = &dwmac_mmc_ops,
.setup = dwmac4_setup,
.quirks = stmmac_dwmac4_quirks,
}, {
@@ -151,6 +155,7 @@ static const struct stmmac_hwif_entry {
.hwtimestamp = &stmmac_ptp,
.mode = &dwmac4_ring_mode_ops,
.tc = &dwmac510_tc_ops,
+ .mmc = &dwmac_mmc_ops,
.setup = dwmac4_setup,
.quirks = NULL,
}, {
@@ -168,6 +173,7 @@ static const struct stmmac_hwif_entry {
.hwtimestamp = &stmmac_ptp,
.mode = &dwmac4_ring_mode_ops,
.tc = &dwmac510_tc_ops,
+ .mmc = &dwmac_mmc_ops,
.setup = dwmac4_setup,
.quirks = NULL,
}, {
@@ -185,6 +191,7 @@ static const struct stmmac_hwif_entry {
.hwtimestamp = &stmmac_ptp,
.mode = &dwmac4_ring_mode_ops,
.tc = &dwmac510_tc_ops,
+ .mmc = &dwmac_mmc_ops,
.setup = dwmac4_setup,
.quirks = NULL,
}, {
@@ -202,6 +209,7 @@ static const struct stmmac_hwif_entry {
.hwtimestamp = &stmmac_ptp,
.mode = NULL,
.tc = &dwmac510_tc_ops,
+ .mmc = NULL,
.setup = dwxgmac2_setup,
.quirks = NULL,
},
@@ -267,6 +275,7 @@ int stmmac_hwif_init(struct stmmac_priv *priv)
mac->ptp = mac->ptp ? : entry->hwtimestamp;
mac->mode = mac->mode ? : entry->mode;
mac->tc = mac->tc ? : entry->tc;
+ mac->mmc = mac->mmc ? : entry->mmc;

priv->hw = mac;
priv->ptpaddr = priv->ioaddr + entry->regs.ptp_off;
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index 9a000dc31d9e..2acfbc70e3c8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -6,6 +6,7 @@
#define __STMMAC_HWIF_H__

#include <linux/netdevice.h>
+#include <linux/stmmac.h>

#define stmmac_do_void_callback(__priv, __module, __cname, __arg0, __args...) \
({ \
@@ -468,6 +469,21 @@ struct stmmac_tc_ops {
#define stmmac_tc_setup_cbs(__priv, __args...) \
stmmac_do_callback(__priv, tc, setup_cbs, __args)

+struct stmmac_counters;
+
+struct stmmac_mmc_ops {
+ void (*ctrl)(void __iomem *ioaddr, unsigned int mode);
+ void (*intr_all_mask)(void __iomem *ioaddr);
+ void (*read)(void __iomem *ioaddr, struct stmmac_counters *mmc);
+};
+
+#define stmmac_mmc_ctrl(__priv, __args...) \
+ stmmac_do_void_callback(__priv, mmc, ctrl, __args)
+#define stmmac_mmc_intr_all_mask(__priv, __args...) \
+ stmmac_do_void_callback(__priv, mmc, intr_all_mask, __args)
+#define stmmac_mmc_read(__priv, __args...) \
+ stmmac_do_void_callback(__priv, mmc, read, __args)
+
struct stmmac_regs_off {
u32 ptp_off;
u32 mmc_off;
@@ -486,6 +502,7 @@ extern const struct stmmac_tc_ops dwmac510_tc_ops;
extern const struct stmmac_ops dwxgmac210_ops;
extern const struct stmmac_dma_ops dwxgmac210_dma_ops;
extern const struct stmmac_desc_ops dwxgmac210_desc_ops;
+extern const struct stmmac_mmc_ops dwmac_mmc_ops;

#define GMAC_VERSION 0x00000020 /* GMAC CORE Version */
#define GMAC4_VERSION 0x00000110 /* GMAC4+ CORE Version */
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc.h b/drivers/net/ethernet/stmicro/stmmac/mmc.h
index c037326331f5..e2bd90a4d34f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc.h
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc.h
@@ -128,8 +128,4 @@ struct stmmac_counters {
unsigned int mmc_rx_icmp_err_octets;
};

-void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode);
-void dwmac_mmc_intr_all_mask(void __iomem *ioaddr);
-void dwmac_mmc_read(void __iomem *ioaddr, struct stmmac_counters *mmc);
-
#endif /* __MMC_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index e9b04c28980f..b8c598125cfe 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -20,6 +20,7 @@

#include <linux/kernel.h>
#include <linux/io.h>
+#include "hwif.h"
#include "mmc.h"

/* MAC Management Counters register offset */
@@ -128,7 +129,7 @@
#define MMC_RX_ICMP_GD_OCTETS 0x180
#define MMC_RX_ICMP_ERR_OCTETS 0x184

-void dwmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
+static void dwmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
{
u32 value = readl(mmcaddr + MMC_CNTRL);

@@ -141,7 +142,7 @@ void dwmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
}

/* To mask all all interrupts.*/
-void dwmac_mmc_intr_all_mask(void __iomem *mmcaddr)
+static void dwmac_mmc_intr_all_mask(void __iomem *mmcaddr)
{
writel(MMC_DEFAULT_MASK, mmcaddr + MMC_RX_INTR_MASK);
writel(MMC_DEFAULT_MASK, mmcaddr + MMC_TX_INTR_MASK);
@@ -153,7 +154,7 @@ void dwmac_mmc_intr_all_mask(void __iomem *mmcaddr)
* counter after a read. So all the field of the mmc struct
* have to be incremented.
*/
-void dwmac_mmc_read(void __iomem *mmcaddr, struct stmmac_counters *mmc)
+static void dwmac_mmc_read(void __iomem *mmcaddr, struct stmmac_counters *mmc)
{
mmc->mmc_tx_octetcount_gb += readl(mmcaddr + MMC_TX_OCTETCOUNT_GB);
mmc->mmc_tx_framecount_gb += readl(mmcaddr + MMC_TX_FRAMECOUNT_GB);
@@ -266,3 +267,9 @@ void dwmac_mmc_read(void __iomem *mmcaddr, struct stmmac_counters *mmc)
mmc->mmc_rx_icmp_gd_octets += readl(mmcaddr + MMC_RX_ICMP_GD_OCTETS);
mmc->mmc_rx_icmp_err_octets += readl(mmcaddr + MMC_RX_ICMP_ERR_OCTETS);
}
+
+const struct stmmac_mmc_ops dwmac_mmc_ops = {
+ .ctrl = dwmac_mmc_ctrl,
+ .intr_all_mask = dwmac_mmc_intr_all_mask,
+ .read = dwmac_mmc_read,
+};
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 3c749c327cbd..b9f29df7e98a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -537,7 +537,7 @@ static void stmmac_get_ethtool_stats(struct net_device *dev,
if (ret) {
/* If supported, for new GMAC chips expose the MMC counters */
if (priv->dma_cap.rmon) {
- dwmac_mmc_read(priv->mmcaddr, &priv->mmc);
+ stmmac_mmc_read(priv, priv->mmcaddr, &priv->mmc);

for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
char *p;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 5ab2733e15e2..571b4a619ed6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2128,10 +2128,10 @@ static void stmmac_mmc_setup(struct stmmac_priv *priv)
unsigned int mode = MMC_CNTRL_RESET_ON_READ | MMC_CNTRL_COUNTER_RESET |
MMC_CNTRL_PRESET | MMC_CNTRL_FULL_HALF_PRESET;

- dwmac_mmc_intr_all_mask(priv->mmcaddr);
+ stmmac_mmc_intr_all_mask(priv, priv->mmcaddr);

if (priv->dma_cap.rmon) {
- dwmac_mmc_ctrl(priv->mmcaddr, mode);
+ stmmac_mmc_ctrl(priv, priv->mmcaddr, mode);
memset(&priv->mmc, 0, sizeof(struct stmmac_counters));
} else
netdev_info(priv->dev, "No MAC Management Counters available\n");
--
2.7.4
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