This is needed ad ipq4019 SoC have an internal switch that is
based on qca8k with very minor changes. The general function is equal.
Because of this we split the driver to common and specific code.
As the common function needs to be moved to a different file to be
reused, we had to convert every remaining user of qca8k_read/write/rmw
to regmap variant.
We had also to generilized the special handling for the ethtool_stats
function that makes use of the autocast mib. (ipq4019 will have a
different tagger and use mmio so it could be quicker to use mmio instead
of automib feature)
And we had to convert the regmap read/write to bulk implementation to
drop the special function that makes use of it. This will be compatible
with ipq4019 and at the same time permits normal switch to use the eth
mgmt way to send the entire ATU table read/write in one go.
v3:
- Squash more patch to skip even more "migration patch"
- Add new patch to cache match data in priv struct
- Fix extra space
- Drop unnecessary cast to qca8k_priv from void pointers
v2:
- Rework patch to drop dependency with bulk regmap (will be
converted later)
- Split the split patch to additional patch
- Rework autocast_mib function and move it to match data
Christian Marangi (14):
net: dsa: qca8k: cache match data to speed up access
net: dsa: qca8k: make mib autocast feature optional
net: dsa: qca8k: move mib struct to common code
net: dsa: qca8k: move qca8k read/write/rmw and reg table to common
code
net: dsa: qca8k: move qca8k bulk read/write helper to common code
net: dsa: qca8k: move mib init function to common code
net: dsa: qca8k: move port set status/eee/ethtool stats function to
common code
net: dsa: qca8k: move bridge functions to common code
net: dsa: qca8k: move set age/MTU/port enable/disable functions to
common code
net: dsa: qca8k: move port FDB/MDB function to common code
net: dsa: qca8k: move port mirror functions to common code
net: dsa: qca8k: move port VLAN functions to common code
net: dsa: qca8k: move port LAG functions to common code
net: dsa: qca8k: move read_switch_id function to common code
drivers/net/dsa/qca/Makefile | 1 +
drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} | 1716 +++--------------
drivers/net/dsa/qca/qca8k-common.c | 1240 ++++++++++++
drivers/net/dsa/qca/qca8k.h | 100 +
4 files changed, 1584 insertions(+), 1473 deletions(-)
rename drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} (63%)
create mode 100644 drivers/net/dsa/qca/qca8k-common.c
--
2.36.1
The same MIB struct is used by drivers based on qca8k family switch. Move
it to common code to make it accessible also by other drivers.
Signed-off-by: Christian Marangi <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
---
drivers/net/dsa/qca/Makefile | 1 +
drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} | 51 ---------------
drivers/net/dsa/qca/qca8k-common.c | 63 +++++++++++++++++++
drivers/net/dsa/qca/qca8k.h | 3 +
4 files changed, 67 insertions(+), 51 deletions(-)
rename drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} (98%)
create mode 100644 drivers/net/dsa/qca/qca8k-common.c
diff --git a/drivers/net/dsa/qca/Makefile b/drivers/net/dsa/qca/Makefile
index 40bb7c27285b..701f1d199e93 100644
--- a/drivers/net/dsa/qca/Makefile
+++ b/drivers/net/dsa/qca/Makefile
@@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_NET_DSA_AR9331) += ar9331.o
obj-$(CONFIG_NET_DSA_QCA8K) += qca8k.o
+qca8k-y += qca8k-common.o qca8k-8xxx.o
diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k-8xxx.c
similarity index 98%
rename from drivers/net/dsa/qca/qca8k.c
rename to drivers/net/dsa/qca/qca8k-8xxx.c
index 9820c5942d2a..249dc4f89beb 100644
--- a/drivers/net/dsa/qca/qca8k.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -24,57 +24,6 @@
#include "qca8k.h"
-#define MIB_DESC(_s, _o, _n) \
- { \
- .size = (_s), \
- .offset = (_o), \
- .name = (_n), \
- }
-
-static const struct qca8k_mib_desc ar8327_mib[] = {
- MIB_DESC(1, 0x00, "RxBroad"),
- MIB_DESC(1, 0x04, "RxPause"),
- MIB_DESC(1, 0x08, "RxMulti"),
- MIB_DESC(1, 0x0c, "RxFcsErr"),
- MIB_DESC(1, 0x10, "RxAlignErr"),
- MIB_DESC(1, 0x14, "RxRunt"),
- MIB_DESC(1, 0x18, "RxFragment"),
- MIB_DESC(1, 0x1c, "Rx64Byte"),
- MIB_DESC(1, 0x20, "Rx128Byte"),
- MIB_DESC(1, 0x24, "Rx256Byte"),
- MIB_DESC(1, 0x28, "Rx512Byte"),
- MIB_DESC(1, 0x2c, "Rx1024Byte"),
- MIB_DESC(1, 0x30, "Rx1518Byte"),
- MIB_DESC(1, 0x34, "RxMaxByte"),
- MIB_DESC(1, 0x38, "RxTooLong"),
- MIB_DESC(2, 0x3c, "RxGoodByte"),
- MIB_DESC(2, 0x44, "RxBadByte"),
- MIB_DESC(1, 0x4c, "RxOverFlow"),
- MIB_DESC(1, 0x50, "Filtered"),
- MIB_DESC(1, 0x54, "TxBroad"),
- MIB_DESC(1, 0x58, "TxPause"),
- MIB_DESC(1, 0x5c, "TxMulti"),
- MIB_DESC(1, 0x60, "TxUnderRun"),
- MIB_DESC(1, 0x64, "Tx64Byte"),
- MIB_DESC(1, 0x68, "Tx128Byte"),
- MIB_DESC(1, 0x6c, "Tx256Byte"),
- MIB_DESC(1, 0x70, "Tx512Byte"),
- MIB_DESC(1, 0x74, "Tx1024Byte"),
- MIB_DESC(1, 0x78, "Tx1518Byte"),
- MIB_DESC(1, 0x7c, "TxMaxByte"),
- MIB_DESC(1, 0x80, "TxOverSize"),
- MIB_DESC(2, 0x84, "TxByte"),
- MIB_DESC(1, 0x8c, "TxCollision"),
- MIB_DESC(1, 0x90, "TxAbortCol"),
- MIB_DESC(1, 0x94, "TxMultiCol"),
- MIB_DESC(1, 0x98, "TxSingleCol"),
- MIB_DESC(1, 0x9c, "TxExcDefer"),
- MIB_DESC(1, 0xa0, "TxDefer"),
- MIB_DESC(1, 0xa4, "TxLateCol"),
- MIB_DESC(1, 0xa8, "RXUnicast"),
- MIB_DESC(1, 0xac, "TXUnicast"),
-};
-
static void
qca8k_split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
{
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
new file mode 100644
index 000000000000..7a63e96c8c08
--- /dev/null
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2009 Felix Fietkau <[email protected]>
+ * Copyright (C) 2011-2012 Gabor Juhos <[email protected]>
+ * Copyright (c) 2015, 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016 John Crispin <[email protected]>
+ */
+
+#include <linux/netdevice.h>
+#include <net/dsa.h>
+
+#include "qca8k.h"
+
+#define MIB_DESC(_s, _o, _n) \
+ { \
+ .size = (_s), \
+ .offset = (_o), \
+ .name = (_n), \
+ }
+
+const struct qca8k_mib_desc ar8327_mib[] = {
+ MIB_DESC(1, 0x00, "RxBroad"),
+ MIB_DESC(1, 0x04, "RxPause"),
+ MIB_DESC(1, 0x08, "RxMulti"),
+ MIB_DESC(1, 0x0c, "RxFcsErr"),
+ MIB_DESC(1, 0x10, "RxAlignErr"),
+ MIB_DESC(1, 0x14, "RxRunt"),
+ MIB_DESC(1, 0x18, "RxFragment"),
+ MIB_DESC(1, 0x1c, "Rx64Byte"),
+ MIB_DESC(1, 0x20, "Rx128Byte"),
+ MIB_DESC(1, 0x24, "Rx256Byte"),
+ MIB_DESC(1, 0x28, "Rx512Byte"),
+ MIB_DESC(1, 0x2c, "Rx1024Byte"),
+ MIB_DESC(1, 0x30, "Rx1518Byte"),
+ MIB_DESC(1, 0x34, "RxMaxByte"),
+ MIB_DESC(1, 0x38, "RxTooLong"),
+ MIB_DESC(2, 0x3c, "RxGoodByte"),
+ MIB_DESC(2, 0x44, "RxBadByte"),
+ MIB_DESC(1, 0x4c, "RxOverFlow"),
+ MIB_DESC(1, 0x50, "Filtered"),
+ MIB_DESC(1, 0x54, "TxBroad"),
+ MIB_DESC(1, 0x58, "TxPause"),
+ MIB_DESC(1, 0x5c, "TxMulti"),
+ MIB_DESC(1, 0x60, "TxUnderRun"),
+ MIB_DESC(1, 0x64, "Tx64Byte"),
+ MIB_DESC(1, 0x68, "Tx128Byte"),
+ MIB_DESC(1, 0x6c, "Tx256Byte"),
+ MIB_DESC(1, 0x70, "Tx512Byte"),
+ MIB_DESC(1, 0x74, "Tx1024Byte"),
+ MIB_DESC(1, 0x78, "Tx1518Byte"),
+ MIB_DESC(1, 0x7c, "TxMaxByte"),
+ MIB_DESC(1, 0x80, "TxOverSize"),
+ MIB_DESC(2, 0x84, "TxByte"),
+ MIB_DESC(1, 0x8c, "TxCollision"),
+ MIB_DESC(1, 0x90, "TxAbortCol"),
+ MIB_DESC(1, 0x94, "TxMultiCol"),
+ MIB_DESC(1, 0x98, "TxSingleCol"),
+ MIB_DESC(1, 0x9c, "TxExcDefer"),
+ MIB_DESC(1, 0xa0, "TxDefer"),
+ MIB_DESC(1, 0xa4, "TxLateCol"),
+ MIB_DESC(1, 0xa8, "RXUnicast"),
+ MIB_DESC(1, 0xac, "TXUnicast"),
+};
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 7b4a698f092a..584fcd7fc355 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -422,4 +422,7 @@ struct qca8k_fdb {
u8 mac[6];
};
+/* Common setup function */
+extern const struct qca8k_mib_desc ar8327_mib[];
+
#endif /* __QCA8K_H */
--
2.36.1
The same bridge functions are used by drivers based on qca8k family
switch. Move them to common code to make them accessible also by other
drivers.
While at it also drop unnecessary qca8k_priv cast for void pointers.
Signed-off-by: Christian Marangi <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
---
drivers/net/dsa/qca/qca8k-8xxx.c | 93 -----------------------------
drivers/net/dsa/qca/qca8k-common.c | 94 ++++++++++++++++++++++++++++++
drivers/net/dsa/qca/qca8k.h | 9 +++
3 files changed, 103 insertions(+), 93 deletions(-)
diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 7042bf8d94c8..c4fce50a91f7 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1898,99 +1898,6 @@ qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
return ret;
}
-static void
-qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
-{
- struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
- u32 stp_state;
-
- switch (state) {
- case BR_STATE_DISABLED:
- stp_state = QCA8K_PORT_LOOKUP_STATE_DISABLED;
- break;
- case BR_STATE_BLOCKING:
- stp_state = QCA8K_PORT_LOOKUP_STATE_BLOCKING;
- break;
- case BR_STATE_LISTENING:
- stp_state = QCA8K_PORT_LOOKUP_STATE_LISTENING;
- break;
- case BR_STATE_LEARNING:
- stp_state = QCA8K_PORT_LOOKUP_STATE_LEARNING;
- break;
- case BR_STATE_FORWARDING:
- default:
- stp_state = QCA8K_PORT_LOOKUP_STATE_FORWARD;
- break;
- }
-
- qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
- QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
-}
-
-static int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
- struct dsa_bridge bridge,
- bool *tx_fwd_offload,
- struct netlink_ext_ack *extack)
-{
- struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
- int port_mask, cpu_port;
- int i, ret;
-
- cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
- port_mask = BIT(cpu_port);
-
- for (i = 0; i < QCA8K_NUM_PORTS; i++) {
- if (dsa_is_cpu_port(ds, i))
- continue;
- if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
- continue;
- /* Add this port to the portvlan mask of the other ports
- * in the bridge
- */
- ret = regmap_set_bits(priv->regmap,
- QCA8K_PORT_LOOKUP_CTRL(i),
- BIT(port));
- if (ret)
- return ret;
- if (i != port)
- port_mask |= BIT(i);
- }
-
- /* Add all other ports to this ports portvlan mask */
- ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
- QCA8K_PORT_LOOKUP_MEMBER, port_mask);
-
- return ret;
-}
-
-static void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
- struct dsa_bridge bridge)
-{
- struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
- int cpu_port, i;
-
- cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
-
- for (i = 0; i < QCA8K_NUM_PORTS; i++) {
- if (dsa_is_cpu_port(ds, i))
- continue;
- if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
- continue;
- /* Remove this port to the portvlan mask of the other ports
- * in the bridge
- */
- regmap_clear_bits(priv->regmap,
- QCA8K_PORT_LOOKUP_CTRL(i),
- BIT(port));
- }
-
- /* Set the cpu port to be the only one in the portvlan mask of
- * this port
- */
- qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
- QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
-}
-
static void
qca8k_port_fast_age(struct dsa_switch *ds, int port)
{
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 369c763fbb5d..754d3bee20cb 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -8,6 +8,7 @@
#include <linux/netdevice.h>
#include <net/dsa.h>
+#include <linux/if_bridge.h>
#include "qca8k.h"
@@ -279,3 +280,96 @@ qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
/* Nothing to do on the port's MAC */
return 0;
}
+
+void
+qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
+{
+ struct qca8k_priv *priv = ds->priv;
+ u32 stp_state;
+
+ switch (state) {
+ case BR_STATE_DISABLED:
+ stp_state = QCA8K_PORT_LOOKUP_STATE_DISABLED;
+ break;
+ case BR_STATE_BLOCKING:
+ stp_state = QCA8K_PORT_LOOKUP_STATE_BLOCKING;
+ break;
+ case BR_STATE_LISTENING:
+ stp_state = QCA8K_PORT_LOOKUP_STATE_LISTENING;
+ break;
+ case BR_STATE_LEARNING:
+ stp_state = QCA8K_PORT_LOOKUP_STATE_LEARNING;
+ break;
+ case BR_STATE_FORWARDING:
+ default:
+ stp_state = QCA8K_PORT_LOOKUP_STATE_FORWARD;
+ break;
+ }
+
+ qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
+ QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
+}
+
+int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
+ struct dsa_bridge bridge,
+ bool *tx_fwd_offload,
+ struct netlink_ext_ack *extack)
+{
+ struct qca8k_priv *priv = ds->priv;
+ int port_mask, cpu_port;
+ int i, ret;
+
+ cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
+ port_mask = BIT(cpu_port);
+
+ for (i = 0; i < QCA8K_NUM_PORTS; i++) {
+ if (dsa_is_cpu_port(ds, i))
+ continue;
+ if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
+ continue;
+ /* Add this port to the portvlan mask of the other ports
+ * in the bridge
+ */
+ ret = regmap_set_bits(priv->regmap,
+ QCA8K_PORT_LOOKUP_CTRL(i),
+ BIT(port));
+ if (ret)
+ return ret;
+ if (i != port)
+ port_mask |= BIT(i);
+ }
+
+ /* Add all other ports to this ports portvlan mask */
+ ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
+ QCA8K_PORT_LOOKUP_MEMBER, port_mask);
+
+ return ret;
+}
+
+void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
+ struct dsa_bridge bridge)
+{
+ struct qca8k_priv *priv = ds->priv;
+ int cpu_port, i;
+
+ cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
+
+ for (i = 0; i < QCA8K_NUM_PORTS; i++) {
+ if (dsa_is_cpu_port(ds, i))
+ continue;
+ if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
+ continue;
+ /* Remove this port to the portvlan mask of the other ports
+ * in the bridge
+ */
+ regmap_clear_bits(priv->regmap,
+ QCA8K_PORT_LOOKUP_CTRL(i),
+ BIT(port));
+ }
+
+ /* Set the cpu port to be the only one in the portvlan mask of
+ * this port
+ */
+ qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
+ QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 9657c0a07bdd..e16263fec91f 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -454,4 +454,13 @@ int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset);
int qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *eee);
int qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
+/* Common bridge function */
+void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state);
+int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
+ struct dsa_bridge bridge,
+ bool *tx_fwd_offload,
+ struct netlink_ext_ack *extack);
+void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
+ struct dsa_bridge bridge);
+
#endif /* __QCA8K_H */
--
2.36.1
Hi Christian,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on net-next/master]
url: https://github.com/intel-lab-lkp/linux/commits/Christian-Marangi/net-dsa-qca8k-code-split-for-qca8k/20220723-222259
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 502c6f8cedcce7889ccdefeb88ce36b39acd522f
config: x86_64-randconfig-a005 (https://download.01.org/0day-ci/archive/20220724/[email protected]/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 12fbd2d377e396ad61bce56d71c98a1eb1bebfa9)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/21c0b9bac2dea29fbb83f818459e7d6f6c74e83e
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Christian-Marangi/net-dsa-qca8k-code-split-for-qca8k/20220723-222259
git checkout 21c0b9bac2dea29fbb83f818459e7d6f6c74e83e
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/dsa/qca/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <[email protected]>
All errors (new ones prefixed by >>):
>> drivers/net/dsa/qca/qca8k-8xxx.c:3208:9: error: initializer element is not a compile-time constant
.ops = qca8xxx_ops,
^~~~~~~~~~~
drivers/net/dsa/qca/qca8k-8xxx.c:3214:9: error: initializer element is not a compile-time constant
.ops = qca8xxx_ops,
^~~~~~~~~~~
drivers/net/dsa/qca/qca8k-8xxx.c:3220:9: error: initializer element is not a compile-time constant
.ops = qca8xxx_ops,
^~~~~~~~~~~
3 errors generated.
vim +3208 drivers/net/dsa/qca/qca8k-8xxx.c
7f6400ae8410e85 drivers/net/dsa/qca/qca8k.c Christian Marangi 2022-07-23 3203
f477d1c8bdbef4f drivers/net/dsa/qca8k.c Christian Marangi 2021-10-14 3204 static const struct qca8k_match_data qca8327 = {
f477d1c8bdbef4f drivers/net/dsa/qca8k.c Christian Marangi 2021-10-14 3205 .id = QCA8K_ID_QCA8327,
f477d1c8bdbef4f drivers/net/dsa/qca8k.c Christian Marangi 2021-10-14 3206 .reduced_package = true,
c126f118b330ccf drivers/net/dsa/qca8k.c Christian Marangi 2021-11-22 3207 .mib_count = QCA8K_QCA832X_MIB_COUNT,
7f6400ae8410e85 drivers/net/dsa/qca/qca8k.c Christian Marangi 2022-07-23 @3208 .ops = qca8xxx_ops,
f477d1c8bdbef4f drivers/net/dsa/qca8k.c Christian Marangi 2021-10-14 3209 };
f477d1c8bdbef4f drivers/net/dsa/qca8k.c Christian Marangi 2021-10-14 3210
--
0-DAY CI Kernel Test Service
https://01.org/lkp