* [net-next 01/11] net/mlx5: Increase size of irq name buffer
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
@ 2023-10-27 22:19 ` Saeed Mahameed
2023-10-27 22:19 ` [net-next 02/11] net/mlx5e: Reduce the size of icosq_str Saeed Mahameed
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:19 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Rahul Rameshbabu,
Dragos Tatulea
From: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Without increased buffer size, will trigger -Wformat-truncation with W=1
for the snprintf operation writing to the buffer.
drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c: In function 'mlx5_irq_alloc':
drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c:296:7: error: '@pci:' directive output may be truncated writing 5 bytes into a region of size between 1 and 32 [-Werror=format-truncation=]
296 | "%s@pci:%s", name, pci_name(dev->pdev));
| ^~~~~
drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c:295:2: note: 'snprintf' output 6 or more bytes (assuming 37) into a destination of size 32
295 | snprintf(irq->name, MLX5_MAX_IRQ_NAME,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
296 | "%s@pci:%s", name, pci_name(dev->pdev));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d4ab2e97dcfbcd748ae71761a9d8e5e41cc732c
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c | 6 +++---
drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h | 3 +++
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
index 653648216730..4dcf995cb1a2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
@@ -28,7 +28,7 @@
struct mlx5_irq {
struct atomic_notifier_head nh;
cpumask_var_t mask;
- char name[MLX5_MAX_IRQ_NAME];
+ char name[MLX5_MAX_IRQ_FORMATTED_NAME];
struct mlx5_irq_pool *pool;
int refcount;
struct msi_map map;
@@ -292,8 +292,8 @@ struct mlx5_irq *mlx5_irq_alloc(struct mlx5_irq_pool *pool, int i,
else
irq_sf_set_name(pool, name, i);
ATOMIC_INIT_NOTIFIER_HEAD(&irq->nh);
- snprintf(irq->name, MLX5_MAX_IRQ_NAME,
- "%s@pci:%s", name, pci_name(dev->pdev));
+ snprintf(irq->name, MLX5_MAX_IRQ_FORMATTED_NAME,
+ MLX5_IRQ_NAME_FORMAT_STR, name, pci_name(dev->pdev));
err = request_irq(irq->map.virq, irq_int_handler, 0, irq->name,
&irq->nh);
if (err) {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h
index d3a77a0ab848..c4d377f8df30 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h
@@ -7,6 +7,9 @@
#include <linux/mlx5/driver.h>
#define MLX5_MAX_IRQ_NAME (32)
+#define MLX5_IRQ_NAME_FORMAT_STR ("%s@pci:%s")
+#define MLX5_MAX_IRQ_FORMATTED_NAME \
+ (MLX5_MAX_IRQ_NAME + sizeof(MLX5_IRQ_NAME_FORMAT_STR))
/* max irq_index is 2047, so four chars */
#define MLX5_MAX_IRQ_IDX_CHARS (4)
#define MLX5_EQ_REFS_PER_IRQ (2)
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 02/11] net/mlx5e: Reduce the size of icosq_str
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
2023-10-27 22:19 ` [net-next 01/11] net/mlx5: Increase size of irq name buffer Saeed Mahameed
@ 2023-10-27 22:19 ` Saeed Mahameed
2023-10-27 22:19 ` [net-next 03/11] net/mlx5e: Check return value of snprintf writing to fw_version buffer Saeed Mahameed
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:19 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan
From: Saeed Mahameed <saeedm@nvidia.com>
icosq_str size is unnecessarily too long, and it causes a build warning
-Wformat-truncation with W=1. Looking closely, It doesn't need to be 255B,
hence this patch reduces the size to 32B which should be more than enough
to host the string: "ICOSQ: 0x%x, ".
While here, add a missing space in the formatted string.
This fixes the following build warning:
$ KCFLAGS='-Wall -Werror'
$ make O=/tmp/kbuild/linux W=1 -s -j12 drivers/net/ethernet/mellanox/mlx5/core/
drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c: In function 'mlx5e_reporter_rx_timeout':
drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c:718:56:
error: ', CQ: 0x' directive output may be truncated writing 8 bytes into a region of size between 0 and 255 [-Werror=format-truncation=]
718 | "RX timeout on channel: %d, %sRQ: 0x%x, CQ: 0x%x",
| ^~~~~~~~
drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c:717:9: note: 'snprintf' output between 43 and 322 bytes into a destination of size 288
717 | snprintf(err_str, sizeof(err_str),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
718 | "RX timeout on channel: %d, %sRQ: 0x%x, CQ: 0x%x",
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
719 | rq->ix, icosq_str, rq->rqn, rq->cq.mcq.cqn);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
index fea8c0a5fe89..4358798d6ce1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -492,11 +492,11 @@ static int mlx5e_rx_reporter_dump(struct devlink_health_reporter *reporter,
void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq)
{
- char icosq_str[MLX5E_REPORTER_PER_Q_MAX_LEN] = {};
char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
struct mlx5e_icosq *icosq = rq->icosq;
struct mlx5e_priv *priv = rq->priv;
struct mlx5e_err_ctx err_ctx = {};
+ char icosq_str[32] = {};
err_ctx.ctx = rq;
err_ctx.recover = mlx5e_rx_reporter_timeout_recover;
@@ -505,7 +505,7 @@ void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq)
if (icosq)
snprintf(icosq_str, sizeof(icosq_str), "ICOSQ: 0x%x, ", icosq->sqn);
snprintf(err_str, sizeof(err_str),
- "RX timeout on channel: %d, %sRQ: 0x%x, CQ: 0x%x",
+ "RX timeout on channel: %d, %s RQ: 0x%x, CQ: 0x%x",
rq->ix, icosq_str, rq->rqn, rq->cq.mcq.cqn);
mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 03/11] net/mlx5e: Check return value of snprintf writing to fw_version buffer
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
2023-10-27 22:19 ` [net-next 01/11] net/mlx5: Increase size of irq name buffer Saeed Mahameed
2023-10-27 22:19 ` [net-next 02/11] net/mlx5e: Reduce the size of icosq_str Saeed Mahameed
@ 2023-10-27 22:19 ` Saeed Mahameed
2023-10-27 22:19 ` [net-next 04/11] net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors Saeed Mahameed
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:19 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Rahul Rameshbabu,
Dragos Tatulea
From: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Treat the operation as an error case when the return value is equivalent to
the size of the name buffer. Failed to write null terminator to the name
buffer, making the string malformed and should not be used. Provide a
string with only the firmware version when forming the string with the
board id fails.
Without check, will trigger -Wformat-truncation with W=1.
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c: In function 'mlx5e_ethtool_get_drvinfo':
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:49:31: warning: '%.16s' directive output may be truncated writing up to 16 bytes into a region of size between 13 and 22 [-Wformat-truncation=]
49 | "%d.%d.%04d (%.16s)",
| ^~~~~
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:48:9: note: 'snprintf' output between 12 and 37 bytes into a destination of size 32
48 | snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
49 | "%d.%d.%04d (%.16s)",
| ~~~~~~~~~~~~~~~~~~~~~
50 | fw_rev_maj(mdev), fw_rev_min(mdev), fw_rev_sub(mdev),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
51 | mdev->board_id);
| ~~~~~~~~~~~~~~~
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d4ab2e97dcfbcd748ae71761a9d8e5e41cc732c
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
.../net/ethernet/mellanox/mlx5/core/en_ethtool.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 215261a69255..792a0ea544cd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -43,12 +43,17 @@ void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
struct ethtool_drvinfo *drvinfo)
{
struct mlx5_core_dev *mdev = priv->mdev;
+ int count;
strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
- snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
- "%d.%d.%04d (%.16s)",
- fw_rev_maj(mdev), fw_rev_min(mdev), fw_rev_sub(mdev),
- mdev->board_id);
+ count = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%04d (%.16s)", fw_rev_maj(mdev),
+ fw_rev_min(mdev), fw_rev_sub(mdev), mdev->board_id);
+ if (count == sizeof(drvinfo->fw_version))
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%04d", fw_rev_maj(mdev),
+ fw_rev_min(mdev), fw_rev_sub(mdev));
+
strscpy(drvinfo->bus_info, dev_name(mdev->device),
sizeof(drvinfo->bus_info));
}
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 04/11] net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (2 preceding siblings ...)
2023-10-27 22:19 ` [net-next 03/11] net/mlx5e: Check return value of snprintf writing to fw_version buffer Saeed Mahameed
@ 2023-10-27 22:19 ` Saeed Mahameed
2023-10-27 22:20 ` [net-next 05/11] net/mlx5: print change on SW reset semaphore returns busy Saeed Mahameed
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:19 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Rahul Rameshbabu,
Dragos Tatulea
From: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Treat the operation as an error case when the return value is equivalent to
the size of the name buffer. Failed to write null terminator to the name
buffer, making the string malformed and should not be used. Provide a
string with only the firmware version when forming the string with the
board id fails. This logic for representors is identical to normal flow
with ethtool.
Without check, will trigger -Wformat-truncation with W=1.
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c: In function 'mlx5e_rep_get_drvinfo':
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:78:31: warning: '%.16s' directive output may be truncated writing up to 16 bytes into a region of size between 13 and 22 [-Wformat-truncation=]
78 | "%d.%d.%04d (%.16s)",
| ^~~~~
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:77:9: note: 'snprintf' output between 12 and 37 bytes into a destination of size 32
77 | snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
78 | "%d.%d.%04d (%.16s)",
| ~~~~~~~~~~~~~~~~~~~~~
79 | fw_rev_maj(mdev), fw_rev_min(mdev),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
80 | fw_rev_sub(mdev), mdev->board_id);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d4ab2e97dcfbcd748ae71761a9d8e5e41cc732c
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 693e55b010d9..3ab682bbcf86 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -71,13 +71,17 @@ static void mlx5e_rep_get_drvinfo(struct net_device *dev,
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5_core_dev *mdev = priv->mdev;
+ int count;
strscpy(drvinfo->driver, mlx5e_rep_driver_name,
sizeof(drvinfo->driver));
- snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
- "%d.%d.%04d (%.16s)",
- fw_rev_maj(mdev), fw_rev_min(mdev),
- fw_rev_sub(mdev), mdev->board_id);
+ count = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%04d (%.16s)", fw_rev_maj(mdev),
+ fw_rev_min(mdev), fw_rev_sub(mdev), mdev->board_id);
+ if (count == sizeof(drvinfo->fw_version))
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%04d", fw_rev_maj(mdev),
+ fw_rev_min(mdev), fw_rev_sub(mdev));
}
static const struct counter_desc sw_rep_stats_desc[] = {
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 05/11] net/mlx5: print change on SW reset semaphore returns busy
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (3 preceding siblings ...)
2023-10-27 22:19 ` [net-next 04/11] net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors Saeed Mahameed
@ 2023-10-27 22:20 ` Saeed Mahameed
2023-10-27 22:20 ` [net-next 06/11] net/mlx5: Allow sync reset flow when BF MGT interface device is present Saeed Mahameed
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:20 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Moshe Shemesh, Shay Drory
From: Moshe Shemesh <moshe@nvidia.com>
While collecting crdump as part of fw_fatal health reporter dump the PF
may fail to lock the SW reset semaphore. Change the print to indicate if
it was due to another PF locked the semaphore already and so trying to
lock the semaphore returned -EBUSY.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c
index 28d02749d3c4..7659ad21e6e5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/crdump.c
@@ -55,7 +55,10 @@ int mlx5_crdump_collect(struct mlx5_core_dev *dev, u32 *cr_data)
ret = mlx5_vsc_sem_set_space(dev, MLX5_SEMAPHORE_SW_RESET,
MLX5_VSC_LOCK);
if (ret) {
- mlx5_core_warn(dev, "Failed to lock SW reset semaphore\n");
+ if (ret == -EBUSY)
+ mlx5_core_info(dev, "SW reset semaphore is already in use\n");
+ else
+ mlx5_core_warn(dev, "Failed to lock SW reset semaphore\n");
goto unlock_gw;
}
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 06/11] net/mlx5: Allow sync reset flow when BF MGT interface device is present
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (4 preceding siblings ...)
2023-10-27 22:20 ` [net-next 05/11] net/mlx5: print change on SW reset semaphore returns busy Saeed Mahameed
@ 2023-10-27 22:20 ` Saeed Mahameed
2023-10-27 22:20 ` [net-next 07/11] net/mlx5e: Some cleanup in mlx5e_tc_stats_matchall() Saeed Mahameed
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:20 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Moshe Shemesh
From: Moshe Shemesh <moshe@nvidia.com>
In sync reset flow, PF is checking that only devices of same device ID
as itself present on the PCIe bridge, otherwise it will NACK the reset.
Since the PCIe bridge connection to NIC card has to be 1 to 1, this is
valid.
However, the BlueField device may also expose another sub-device to the
PCI called management interface, which only provides an ethernet channel
between the host and the smart NIC.
Allow sync reset flow also when management interface sub-device present
when checking devices on the PCIe bridge.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
.../ethernet/mellanox/mlx5/core/fw_reset.c | 32 ++++++++++++++++---
1 file changed, 28 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
index b568988e92e3..4b8cb120362b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
@@ -325,6 +325,25 @@ static void mlx5_fw_live_patch_event(struct work_struct *work)
mlx5_core_err(dev, "Failed to reload FW tracer\n");
}
+static const struct pci_device_id mgt_ifc_device_ids[] = {
+ { PCI_VDEVICE(MELLANOX, 0xc2d2) }, /* BlueField1 MGT interface device ID */
+ { PCI_VDEVICE(MELLANOX, 0xc2d3) }, /* BlueField2 MGT interface device ID */
+ { PCI_VDEVICE(MELLANOX, 0xc2d4) }, /* BlueField3-Lx MGT interface device ID */
+ { PCI_VDEVICE(MELLANOX, 0xc2d5) }, /* BlueField3 MGT interface device ID */
+ { PCI_VDEVICE(MELLANOX, 0xc2d6) }, /* BlueField4 MGT interface device ID */
+};
+
+static bool mlx5_is_mgt_ifc_pci_device(struct mlx5_core_dev *dev, u16 dev_id)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mgt_ifc_device_ids); ++i)
+ if (mgt_ifc_device_ids[i].device == dev_id)
+ return true;
+
+ return false;
+}
+
static int mlx5_check_dev_ids(struct mlx5_core_dev *dev, u16 dev_id)
{
struct pci_bus *bridge_bus = dev->pdev->bus;
@@ -339,10 +358,15 @@ static int mlx5_check_dev_ids(struct mlx5_core_dev *dev, u16 dev_id)
err = pci_read_config_word(sdev, PCI_DEVICE_ID, &sdev_id);
if (err)
return pcibios_err_to_errno(err);
- if (sdev_id != dev_id) {
- mlx5_core_warn(dev, "unrecognized dev_id (0x%x)\n", sdev_id);
- return -EPERM;
- }
+
+ if (sdev_id == dev_id)
+ continue;
+
+ if (mlx5_is_mgt_ifc_pci_device(dev, sdev_id))
+ continue;
+
+ mlx5_core_warn(dev, "unrecognized dev_id (0x%x)\n", sdev_id);
+ return -EPERM;
}
return 0;
}
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 07/11] net/mlx5e: Some cleanup in mlx5e_tc_stats_matchall()
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (5 preceding siblings ...)
2023-10-27 22:20 ` [net-next 06/11] net/mlx5: Allow sync reset flow when BF MGT interface device is present Saeed Mahameed
@ 2023-10-27 22:20 ` Saeed Mahameed
2023-10-27 22:20 ` [net-next 08/11] net/mlx5: Annotate struct mlx5_fc_bulk with __counted_by Saeed Mahameed
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:20 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Amir Tzin,
Patrisious Haddad
From: Amir Tzin <amirtz@nvidia.com>
Function mlx5e_tc_stats_matchall() is only called from one file:
drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
Move it there and make it static as exposing it is unnecessary. Also
variable cur_stats is redundant. Remove it and avoid superfluous copy.
This patch does not change functionality.
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Amir Tzin <amirtz@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
.../net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 14 ++++++++++++++
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 16 ----------------
drivers/net/ethernet/mellanox/mlx5/core/en_tc.h | 2 --
3 files changed, 14 insertions(+), 18 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
index b12fe3c5a258..a55452c69f06 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
@@ -147,6 +147,20 @@ mlx5e_rep_setup_tc_cls_flower(struct mlx5e_priv *priv,
}
}
+static void mlx5e_tc_stats_matchall(struct mlx5e_priv *priv,
+ struct tc_cls_matchall_offload *ma)
+{
+ struct mlx5e_rep_priv *rpriv = priv->ppriv;
+ u64 dbytes;
+ u64 dpkts;
+
+ dpkts = priv->stats.rep_stats.vport_rx_packets - rpriv->prev_vf_vport_stats.rx_packets;
+ dbytes = priv->stats.rep_stats.vport_rx_bytes - rpriv->prev_vf_vport_stats.rx_bytes;
+ mlx5e_stats_copy_rep_stats(&rpriv->prev_vf_vport_stats, &priv->stats.rep_stats);
+ flow_stats_update(&ma->stats, dbytes, dpkts, 0, jiffies,
+ FLOW_ACTION_HW_STATS_DELAYED);
+}
+
static
int mlx5e_rep_setup_tc_cls_matchall(struct mlx5e_priv *priv,
struct tc_cls_matchall_offload *ma)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 9a5a5c2c7da9..25743a7eda26 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -5007,22 +5007,6 @@ int mlx5e_tc_delete_matchall(struct mlx5e_priv *priv,
return apply_police_params(priv, 0, extack);
}
-void mlx5e_tc_stats_matchall(struct mlx5e_priv *priv,
- struct tc_cls_matchall_offload *ma)
-{
- struct mlx5e_rep_priv *rpriv = priv->ppriv;
- struct rtnl_link_stats64 cur_stats;
- u64 dbytes;
- u64 dpkts;
-
- mlx5e_stats_copy_rep_stats(&cur_stats, &priv->stats.rep_stats);
- dpkts = cur_stats.rx_packets - rpriv->prev_vf_vport_stats.rx_packets;
- dbytes = cur_stats.rx_bytes - rpriv->prev_vf_vport_stats.rx_bytes;
- rpriv->prev_vf_vport_stats = cur_stats;
- flow_stats_update(&ma->stats, dbytes, dpkts, 0, jiffies,
- FLOW_ACTION_HW_STATS_DELAYED);
-}
-
static void mlx5e_tc_hairpin_update_dead_peer(struct mlx5e_priv *priv,
struct mlx5e_priv *peer_priv)
{
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h
index adb39e30f90f..c24bda56b2b5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h
@@ -203,8 +203,6 @@ int mlx5e_tc_configure_matchall(struct mlx5e_priv *priv,
struct tc_cls_matchall_offload *f);
int mlx5e_tc_delete_matchall(struct mlx5e_priv *priv,
struct tc_cls_matchall_offload *f);
-void mlx5e_tc_stats_matchall(struct mlx5e_priv *priv,
- struct tc_cls_matchall_offload *ma);
struct mlx5e_encap_entry;
void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv,
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 08/11] net/mlx5: Annotate struct mlx5_fc_bulk with __counted_by
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (6 preceding siblings ...)
2023-10-27 22:20 ` [net-next 07/11] net/mlx5e: Some cleanup in mlx5e_tc_stats_matchall() Saeed Mahameed
@ 2023-10-27 22:20 ` Saeed Mahameed
2023-10-27 22:20 ` [net-next 09/11] net/mlx5: Annotate struct mlx5_flow_handle " Saeed Mahameed
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:20 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Kees Cook, Leon Romanovsky,
linux-rdma, Justin Stitt, Gustavo A . R . Silva, Leon Romanovsky
From: Kees Cook <keescook@chromium.org>
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for
array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct mlx5_fc_bulk.
Cc: Saeed Mahameed <saeedm@nvidia.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
index 17fe30a4c06c..0c26d707eed2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
@@ -539,7 +539,7 @@ struct mlx5_fc_bulk {
u32 base_id;
int bulk_len;
unsigned long *bitmask;
- struct mlx5_fc fcs[];
+ struct mlx5_fc fcs[] __counted_by(bulk_len);
};
static void mlx5_fc_init(struct mlx5_fc *counter, struct mlx5_fc_bulk *bulk,
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 09/11] net/mlx5: Annotate struct mlx5_flow_handle with __counted_by
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (7 preceding siblings ...)
2023-10-27 22:20 ` [net-next 08/11] net/mlx5: Annotate struct mlx5_fc_bulk with __counted_by Saeed Mahameed
@ 2023-10-27 22:20 ` Saeed Mahameed
2023-10-27 22:20 ` [net-next 10/11] net/mlx5: simplify mlx5_set_driver_version string assignments Saeed Mahameed
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:20 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Kees Cook, Leon Romanovsky,
linux-rdma, Justin Stitt, Gustavo A . R . Silva, Leon Romanovsky
From: Kees Cook <keescook@chromium.org>
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for
array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct mlx5_flow_handle.
Cc: Saeed Mahameed <saeedm@nvidia.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
index 4aed1768b85f..78eb6b7097e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -181,7 +181,7 @@ struct mlx5_flow_rule {
struct mlx5_flow_handle {
int num_rules;
- struct mlx5_flow_rule *rule[];
+ struct mlx5_flow_rule *rule[] __counted_by(num_rules);
};
/* Type of children is mlx5_flow_group */
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 10/11] net/mlx5: simplify mlx5_set_driver_version string assignments
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (8 preceding siblings ...)
2023-10-27 22:20 ` [net-next 09/11] net/mlx5: Annotate struct mlx5_flow_handle " Saeed Mahameed
@ 2023-10-27 22:20 ` Saeed Mahameed
2023-10-27 22:20 ` [net-next 11/11] net/mlx5e: Access array with enum values instead of magic numbers Saeed Mahameed
2023-10-30 6:31 ` [pull request][net-next 00/11] mlx5 updates 2023-10-27 Jakub Kicinski
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:20 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Justin Stitt,
linux-hardening, Kees Cook
From: Justin Stitt <justinstitt@google.com>
In total, just assigning this version string takes:
(1) strncpy()'s
(5) strlen()'s
(3) strncat()'s
(1) snprintf()'s
(4) max_t()'s
Moreover, `strncpy` is deprecated [1] and `strncat` really shouldn't be
used either [2]. With this in mind, let's simply use a single
`snprintf`.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://elixir.bootlin.com/linux/v6.6-rc5/source/include/linux/fortify-string.h#L448 [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
.../net/ethernet/mellanox/mlx5/core/main.c | 20 +++----------------
1 file changed, 3 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index a17152c1cbb2..bccf6e53556c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -219,7 +219,6 @@ static void mlx5_set_driver_version(struct mlx5_core_dev *dev)
int driver_ver_sz = MLX5_FLD_SZ_BYTES(set_driver_version_in,
driver_version);
u8 in[MLX5_ST_SZ_BYTES(set_driver_version_in)] = {};
- int remaining_size = driver_ver_sz;
char *string;
if (!MLX5_CAP_GEN(dev, driver_version))
@@ -227,22 +226,9 @@ static void mlx5_set_driver_version(struct mlx5_core_dev *dev)
string = MLX5_ADDR_OF(set_driver_version_in, in, driver_version);
- strncpy(string, "Linux", remaining_size);
-
- remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
- strncat(string, ",", remaining_size);
-
- remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
- strncat(string, KBUILD_MODNAME, remaining_size);
-
- remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
- strncat(string, ",", remaining_size);
-
- remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
-
- snprintf(string + strlen(string), remaining_size, "%u.%u.%u",
- LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL,
- LINUX_VERSION_SUBLEVEL);
+ snprintf(string, driver_ver_sz, "Linux,%s,%u.%u.%u",
+ KBUILD_MODNAME, LINUX_VERSION_MAJOR,
+ LINUX_VERSION_PATCHLEVEL, LINUX_VERSION_SUBLEVEL);
/*Send the command*/
MLX5_SET(set_driver_version_in, in, opcode,
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* [net-next 11/11] net/mlx5e: Access array with enum values instead of magic numbers
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (9 preceding siblings ...)
2023-10-27 22:20 ` [net-next 10/11] net/mlx5: simplify mlx5_set_driver_version string assignments Saeed Mahameed
@ 2023-10-27 22:20 ` Saeed Mahameed
2023-10-30 6:31 ` [pull request][net-next 00/11] mlx5 updates 2023-10-27 Jakub Kicinski
11 siblings, 0 replies; 13+ messages in thread
From: Saeed Mahameed @ 2023-10-27 22:20 UTC (permalink / raw)
To: David S. Miller, Jakub Kicinski, Paolo Abeni, Eric Dumazet
Cc: Saeed Mahameed, netdev, Tariq Toukan, Gal Pressman, Vlad Buslov
From: Gal Pressman <gal@nvidia.com>
Access the headers array using pedit_cmd enum values, and don't assume
anything about their values.
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/pedit.c | 3 ++-
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 8 ++++----
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/pedit.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/pedit.c
index 368a95fa77d3..b14cd62edffc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/pedit.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/pedit.c
@@ -48,7 +48,8 @@ mlx5e_tc_act_pedit_parse_action(struct mlx5e_priv *priv,
struct pedit_headers_action *hdrs,
struct netlink_ext_ack *extack)
{
- u8 cmd = (act->id == FLOW_ACTION_MANGLE) ? 0 : 1;
+ u8 cmd = (act->id == FLOW_ACTION_MANGLE) ? TCA_PEDIT_KEY_EX_CMD_SET :
+ TCA_PEDIT_KEY_EX_CMD_ADD;
u8 htype = act->mangle.htype;
int err = -EOPNOTSUPP;
u32 mask, val, offset;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 25743a7eda26..4e1f339e381f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3195,10 +3195,10 @@ static int offload_pedit_fields(struct mlx5e_priv *priv,
headers_c = mlx5e_get_match_headers_criteria(*action_flags, &parse_attr->spec);
headers_v = mlx5e_get_match_headers_value(*action_flags, &parse_attr->spec);
- set_masks = &hdrs[0].masks;
- add_masks = &hdrs[1].masks;
- set_vals = &hdrs[0].vals;
- add_vals = &hdrs[1].vals;
+ set_masks = &hdrs[TCA_PEDIT_KEY_EX_CMD_SET].masks;
+ add_masks = &hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].masks;
+ set_vals = &hdrs[TCA_PEDIT_KEY_EX_CMD_SET].vals;
+ add_vals = &hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].vals;
for (i = 0; i < ARRAY_SIZE(fields); i++) {
bool skip;
--
2.41.0
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [pull request][net-next 00/11] mlx5 updates 2023-10-27
2023-10-27 22:19 [pull request][net-next 00/11] mlx5 updates 2023-10-27 Saeed Mahameed
` (10 preceding siblings ...)
2023-10-27 22:20 ` [net-next 11/11] net/mlx5e: Access array with enum values instead of magic numbers Saeed Mahameed
@ 2023-10-30 6:31 ` Jakub Kicinski
11 siblings, 0 replies; 13+ messages in thread
From: Jakub Kicinski @ 2023-10-30 6:31 UTC (permalink / raw)
To: Saeed Mahameed
Cc: David S. Miller, Paolo Abeni, Eric Dumazet, Saeed Mahameed,
netdev, Tariq Toukan
On Fri, 27 Oct 2023 15:19:55 -0700 Saeed Mahameed wrote:
> This series provides few cleanups to mlx5 prior to merge window.
> For more information please see tag log below.
## Form letter - net-next-closed
The merge window for v6.7 has begun and we have already posted our pull
request. Therefore net-next is closed for new drivers, features, code
refactoring and optimizations. We are currently accepting bug fixes only.
Please repost when net-next reopens after Nov 12th.
RFC patches sent for review only are obviously welcome at any time.
See: https://www.kernel.org/doc/html/next/process/maintainer-netdev.html#development-cycle
--
pw-bot: defer
^ permalink raw reply [flat|nested] 13+ messages in thread