2019-05-14 15:48:51

by Jose Abreu

[permalink] [raw]
Subject: [RFC net-next v2 00/14] net: stmmac: Selftests

[ Submitting with net-next closed for proper review and testing. ]

This introduces selftests support in stmmac driver. We add 9 basic sanity
checks and MAC loopback support for all cores within the driver. This way
more tests can easily be added in the future and can be run in virtually
any MAC/GMAC/QoS/XGMAC platform.

Having this we can find regressions and missing features in the driver
while at the same time we can check if the IP is correctly working.

We have been using this for some time now and I do have more tests to
submit in the feature. My experience is that although writing the tests
adds more development time, the gain results are obvious.

I let this feature optional within the driver under a Kconfig option.

Cc: Joao Pinto <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Corentin Labbe <[email protected]>
Cc: Andrew Lunn <[email protected]>

Corentin Labbe (1):
net: ethernet: stmmac: dwmac-sun8i: Enable control of loopback

Jose Abreu (13):
net: stmmac: Add MAC loopback callback to HWIF
net: stmmac: dwmac100: Add MAC loopback support
net: stmmac: dwmac1000: Add MAC loopback support
net: stmmac: dwmac4/5: Add MAC loopback support
net: stmmac: dwxgmac2: Add MAC loopback support
net: stmmac: Switch MMC functions to HWIF callbacks
net: stmmac: dwmac1000: Also pass control frames while in promisc mode
net: stmmac: dwmac4/5: Also pass control frames while in promisc mode
net: stmmac: dwxgmac2: Also pass control frames while in promisc mode
net: stmmac: Introduce selftests support
net: stmmac: dwmac1000: Fix Hash Filter
net: stmmac: dwmac1000: Clear unused address entries
net: stmmac: dwmac4/5: Fix Hash Filter

drivers/net/ethernet/stmicro/stmmac/Kconfig | 9 +
drivers/net/ethernet/stmicro/stmmac/Makefile | 2 +
drivers/net/ethernet/stmicro/stmmac/common.h | 1 +
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 13 +
drivers/net/ethernet/stmicro/stmmac/dwmac1000.h | 1 +
.../net/ethernet/stmicro/stmmac/dwmac1000_core.c | 22 +-
.../net/ethernet/stmicro/stmmac/dwmac100_core.c | 13 +
drivers/net/ethernet/stmicro/stmmac/dwmac4.h | 3 +
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 19 +-
drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h | 2 +
.../net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 15 +-
drivers/net/ethernet/stmicro/stmmac/hwif.c | 9 +
drivers/net/ethernet/stmicro/stmmac/hwif.h | 21 +
drivers/net/ethernet/stmicro/stmmac/mmc.h | 4 -
drivers/net/ethernet/stmicro/stmmac/mmc_core.c | 13 +-
drivers/net/ethernet/stmicro/stmmac/stmmac.h | 22 +
.../net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 8 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +-
.../net/ethernet/stmicro/stmmac/stmmac_selftests.c | 846 +++++++++++++++++++++
19 files changed, 1014 insertions(+), 13 deletions(-)
create mode 100644 drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c

--
2.7.4


2019-05-14 15:49:22

by Jose Abreu

[permalink] [raw]
Subject: [RFC net-next v2 04/14] net: stmmac: dwmac4/5: Add MAC loopback support

In preparation for the addition of stmmac selftests we implement the MAC
loopback callback in dwmac4/5 cores.

Signed-off-by: Jose Abreu <[email protected]>
Cc: Joao Pinto <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Corentin Labbe <[email protected]>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4.h | 1 +
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 15 +++++++++++++++
2 files changed, 16 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
index eb013d54025a..3dddd7902b0f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
@@ -160,6 +160,7 @@ enum power_event {
#define GMAC_CONFIG_PS BIT(15)
#define GMAC_CONFIG_FES BIT(14)
#define GMAC_CONFIG_DM BIT(13)
+#define GMAC_CONFIG_LM BIT(12)
#define GMAC_CONFIG_DCRS BIT(9)
#define GMAC_CONFIG_TE BIT(1)
#define GMAC_CONFIG_RE BIT(0)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 7e5d5db0d516..2f1a2a6f9b33 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -701,6 +701,18 @@ static void dwmac4_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x,
x->mac_gmii_rx_proto_engine++;
}

+static void dwmac4_set_mac_loopback(void __iomem *ioaddr, bool enable)
+{
+ u32 value = readl(ioaddr + GMAC_CONFIG);
+
+ if (enable)
+ value |= GMAC_CONFIG_LM;
+ else
+ value &= ~GMAC_CONFIG_LM;
+
+ writel(value, ioaddr + GMAC_CONFIG);
+}
+
const struct stmmac_ops dwmac4_ops = {
.core_init = dwmac4_core_init,
.set_mac = stmmac_set_mac,
@@ -730,6 +742,7 @@ const struct stmmac_ops dwmac4_ops = {
.pcs_get_adv_lp = dwmac4_get_adv_lp,
.debug = dwmac4_debug,
.set_filter = dwmac4_set_filter,
+ .set_mac_loopback = dwmac4_set_mac_loopback,
};

const struct stmmac_ops dwmac410_ops = {
@@ -761,6 +774,7 @@ const struct stmmac_ops dwmac410_ops = {
.pcs_get_adv_lp = dwmac4_get_adv_lp,
.debug = dwmac4_debug,
.set_filter = dwmac4_set_filter,
+ .set_mac_loopback = dwmac4_set_mac_loopback,
};

const struct stmmac_ops dwmac510_ops = {
@@ -797,6 +811,7 @@ const struct stmmac_ops dwmac510_ops = {
.safety_feat_dump = dwmac5_safety_feat_dump,
.rxp_config = dwmac5_rxp_config,
.flex_pps_config = dwmac5_flex_pps_config,
+ .set_mac_loopback = dwmac4_set_mac_loopback,
};

int dwmac4_setup(struct stmmac_priv *priv)
--
2.7.4

2019-05-14 15:49:48

by Jose Abreu

[permalink] [raw]
Subject: [RFC net-next v2 09/14] net: stmmac: dwmac4/5: Also pass control frames while in promisc mode

In order for the selftests to run the Flow Control selftest we need to
also pass pause frames to the stack.

Pass this type of frames while in promiscuous mode.

Signed-off-by: Jose Abreu <[email protected]>
Cc: Joao Pinto <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Corentin Labbe <[email protected]>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4.h | 1 +
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
index 3dddd7902b0f..c3cbca804bcd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
@@ -64,6 +64,7 @@
#define GMAC_PACKET_FILTER_PR BIT(0)
#define GMAC_PACKET_FILTER_HMC BIT(2)
#define GMAC_PACKET_FILTER_PM BIT(4)
+#define GMAC_PACKET_FILTER_PCF BIT(7)

#define GMAC_MAX_PERFECT_ADDRESSES 128

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 2f1a2a6f9b33..02a3a7e2db6e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -404,7 +404,7 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
unsigned int value = 0;

if (dev->flags & IFF_PROMISC) {
- value = GMAC_PACKET_FILTER_PR;
+ value = GMAC_PACKET_FILTER_PR | GMAC_PACKET_FILTER_PCF;
} else if ((dev->flags & IFF_ALLMULTI) ||
(netdev_mc_count(dev) > HASH_TABLE_SIZE)) {
/* Pass all multi */
--
2.7.4

2019-05-14 15:49:53

by Jose Abreu

[permalink] [raw]
Subject: [RFC net-next v2 07/14] net: stmmac: Switch MMC functions to HWIF callbacks

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 <[email protected]>
Cc: Joao Pinto <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Corentin Labbe <[email protected]>
---
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

2019-05-14 15:50:06

by Jose Abreu

[permalink] [raw]
Subject: [RFC net-next v2 12/14] net: stmmac: dwmac1000: Fix Hash Filter

In order for hash filter to work we need to set the HPF bit.

Found out while running stmmac selftests.

Signed-off-by: Jose Abreu <[email protected]>
Cc: Joao Pinto <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Corentin Labbe <[email protected]>
---
drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
index 8ca73bd15e07..bc91af6c01b6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -198,6 +198,7 @@ static void dwmac1000_set_filter(struct mac_device_info *hw,
}
}

+ value |= GMAC_FRAME_FILTER_HPF;
dwmac1000_set_mchash(ioaddr, mc_filter, mcbitslog2);

/* Handle multiple unicast addresses (perfect filtering) */
--
2.7.4

2019-05-14 15:50:21

by Jose Abreu

[permalink] [raw]
Subject: [RFC net-next v2 10/14] net: stmmac: dwxgmac2: Also pass control frames while in promisc mode

In order for the selftests to run the Flow Control selftest we need to
also pass pause frames to the stack.

Pass this type of frames while in promiscuous mode.

Signed-off-by: Jose Abreu <[email protected]>
Cc: Joao Pinto <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Corentin Labbe <[email protected]>
---
drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h | 1 +
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
index f629ccc8932a..b8296eb41011 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
@@ -40,6 +40,7 @@
#define XGMAC_CORE_INIT_RX 0
#define XGMAC_PACKET_FILTER 0x00000008
#define XGMAC_FILTER_RA BIT(31)
+#define XGMAC_FILTER_PCF BIT(7)
#define XGMAC_FILTER_PM BIT(4)
#define XGMAC_FILTER_HMC BIT(2)
#define XGMAC_FILTER_PR BIT(0)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
index c27b3ca052ea..bfa7d6913fd4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
@@ -310,7 +310,7 @@ static void dwxgmac2_set_filter(struct mac_device_info *hw,
u32 value = XGMAC_FILTER_RA;

if (dev->flags & IFF_PROMISC) {
- value |= XGMAC_FILTER_PR;
+ value |= XGMAC_FILTER_PR | XGMAC_FILTER_PCF;
} else if ((dev->flags & IFF_ALLMULTI) ||
(netdev_mc_count(dev) > HASH_TABLE_SIZE)) {
value |= XGMAC_FILTER_PM;
--
2.7.4

2019-05-14 18:10:54

by David Miller

[permalink] [raw]
Subject: Re: [RFC net-next v2 00/14] net: stmmac: Selftests

From: Jose Abreu <[email protected]>
Date: Tue, 14 May 2019 17:45:22 +0200

> [ Submitting with net-next closed for proper review and testing. ]
>
> This introduces selftests support in stmmac driver. We add 9 basic sanity
> checks and MAC loopback support for all cores within the driver. This way
> more tests can easily be added in the future and can be run in virtually
> any MAC/GMAC/QoS/XGMAC platform.
>
> Having this we can find regressions and missing features in the driver
> while at the same time we can check if the IP is correctly working.
>
> We have been using this for some time now and I do have more tests to
> submit in the feature. My experience is that although writing the tests
> adds more development time, the gain results are obvious.
>
> I let this feature optional within the driver under a Kconfig option.

Generally, this series looks fine to me.

2019-05-15 17:30:51

by Corentin Labbe

[permalink] [raw]
Subject: Re: [RFC net-next v2 00/14] net: stmmac: Selftests

On Tue, May 14, 2019 at 05:45:22PM +0200, Jose Abreu wrote:
> [ Submitting with net-next closed for proper review and testing. ]
>
> This introduces selftests support in stmmac driver. We add 9 basic sanity
> checks and MAC loopback support for all cores within the driver. This way
> more tests can easily be added in the future and can be run in virtually
> any MAC/GMAC/QoS/XGMAC platform.
>
> Having this we can find regressions and missing features in the driver
> while at the same time we can check if the IP is correctly working.
>
> We have been using this for some time now and I do have more tests to
> submit in the feature. My experience is that although writing the tests
> adds more development time, the gain results are obvious.
>
> I let this feature optional within the driver under a Kconfig option.
>
> Cc: Joao Pinto <[email protected]>
> Cc: David S. Miller <[email protected]>
> Cc: Giuseppe Cavallaro <[email protected]>
> Cc: Alexandre Torgue <[email protected]>
> Cc: Corentin Labbe <[email protected]>
> Cc: Andrew Lunn <[email protected]>
>
> Corentin Labbe (1):
> net: ethernet: stmmac: dwmac-sun8i: Enable control of loopback
>
> Jose Abreu (13):
> net: stmmac: Add MAC loopback callback to HWIF
> net: stmmac: dwmac100: Add MAC loopback support
> net: stmmac: dwmac1000: Add MAC loopback support
> net: stmmac: dwmac4/5: Add MAC loopback support
> net: stmmac: dwxgmac2: Add MAC loopback support
> net: stmmac: Switch MMC functions to HWIF callbacks
> net: stmmac: dwmac1000: Also pass control frames while in promisc mode
> net: stmmac: dwmac4/5: Also pass control frames while in promisc mode
> net: stmmac: dwxgmac2: Also pass control frames while in promisc mode
> net: stmmac: Introduce selftests support
> net: stmmac: dwmac1000: Fix Hash Filter
> net: stmmac: dwmac1000: Clear unused address entries
> net: stmmac: dwmac4/5: Fix Hash Filter
>
> drivers/net/ethernet/stmicro/stmmac/Kconfig | 9 +
> drivers/net/ethernet/stmicro/stmmac/Makefile | 2 +
> drivers/net/ethernet/stmicro/stmmac/common.h | 1 +
> drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 13 +
> drivers/net/ethernet/stmicro/stmmac/dwmac1000.h | 1 +
> .../net/ethernet/stmicro/stmmac/dwmac1000_core.c | 22 +-
> .../net/ethernet/stmicro/stmmac/dwmac100_core.c | 13 +
> drivers/net/ethernet/stmicro/stmmac/dwmac4.h | 3 +
> drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 19 +-
> drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h | 2 +
> .../net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 15 +-
> drivers/net/ethernet/stmicro/stmmac/hwif.c | 9 +
> drivers/net/ethernet/stmicro/stmmac/hwif.h | 21 +
> drivers/net/ethernet/stmicro/stmmac/mmc.h | 4 -
> drivers/net/ethernet/stmicro/stmmac/mmc_core.c | 13 +-
> drivers/net/ethernet/stmicro/stmmac/stmmac.h | 22 +
> .../net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 8 +-
> drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +-
> .../net/ethernet/stmicro/stmmac/stmmac_selftests.c | 846 +++++++++++++++++++++
> 19 files changed, 1014 insertions(+), 13 deletions(-)
> create mode 100644 drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
>
> --
> 2.7.4
>

Tested-by: Corentin LABBE <[email protected]>
Tested-on: sun7i-a20-cubieboard2
Tested-on: sun50i-a64-bananapi-m64
Tested-on: meson-gxl-s905x-libretech-cc

For information the output is:
On sun50i-a64-bananapi-m64
ethtool --test eth0 offline
The test result is PASS
The test extra info:
1. MAC Loopback 0
2. PHY Loopback -95
3. MMC Counters -95
4. EEE -95
5. Hash Filter MC 0
6. Perfect Filter UC 0
7. MC Filter 0
8. UC Filter 0
9. Flow Control -95
with onine I got
dwmac-sun8i 1c30000.ethernet eth0: Only offline tests are supported

on sun7i-a20-cubieboard2:
ethtool --test eth0 offline
The test result is PASS
The test extra info:
1. MAC Loopback 0
2. PHY Loopback -95
3. MMC Counters -95
4. EEE -95
5. Hash Filter MC 0
6. Perfect Filter UC 0
7. MC Filter 0
8. UC Filter 0
9. Flow Control -95
With online I got:
sun7i-dwmac 1c50000.ethernet eth0: Only offline tests are supported

on meson-gxl-s905x-libretech-cc:
ethtool --test eth0 offline
The test result is FAIL
The test extra info:
1. MAC Loopback 0
2. PHY Loopback -95
3. MMC Counters -1
4. EEE -95
5. Hash Filter MC 0
6. Perfect Filter UC 0
7. MC Filter 0
8. UC Filter 0
9. Flow Control -95
with onine I got
meson8b-dwmac c9410000.ethernet eth0: Only offline tests are supported

I will try to investigate the MMC failure. Does -1 (vs other -EXXXX) is the right error code to return from the driver ?

2019-05-16 07:54:02

by Jose Abreu

[permalink] [raw]
Subject: RE: [RFC net-next v2 00/14] net: stmmac: Selftests

From: Corentin Labbe <[email protected]>
Date: Wed, May 15, 2019 at 18:29:22

> I will try to investigate the MMC failure. Does -1 (vs other -EXXXX) is the right error code to return from the driver ?

Thank you for testing!

Yes, I will fix to return a valid error code.

As per MMC failure this can be due to your HW not having all MMC counters
available. Can you please remove all if conditions in stmmac_test_mmc()
and just leave the "mmc_tx_framecount_g" check ?

Thanks,
Jose Miguel Abreu