* [PATCH] linux/igb_uio: make module parameters visible in sysfs
@ 2022-08-21 23:19 Shinae Woo
2023-10-31 16:59 ` Stephen Hemminger
0 siblings, 1 reply; 4+ messages in thread
From: Shinae Woo @ 2022-08-21 23:19 UTC (permalink / raw)
To: dev
- explicitly set default value for intr_mode
- give read permission on wc_activate
- applying patch gives below visibility
```
$ more /sys/module/igb_uio/parameters/* | cat
::::::::::::::
/sys/module/igb_uio/parameters/intr_mode
::::::::::::::
msix
::::::::::::::
/sys/module/igb_uio/parameters/wc_activate
::::::::::::::
0
```
Signed-off-by: Shinae Woo <shinae@alkira.net>
---
linux/igb_uio/igb_uio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/linux/igb_uio/igb_uio.c b/linux/igb_uio/igb_uio.c
index 33e0e02..c927ae6 100644
--- a/linux/igb_uio/igb_uio.c
+++ b/linux/igb_uio/igb_uio.c
@@ -44,7 +44,7 @@ struct rte_uio_pci_dev {
};
static int wc_activate;
-static char *intr_mode;
+static char *intr_mode = RTE_INTR_MODE_MSIX_NAME;
static enum rte_intr_mode igbuio_intr_mode_preferred = RTE_INTR_MODE_MSIX;
/* sriov sysfs */
static ssize_t
@@ -663,7 +663,7 @@ MODULE_PARM_DESC(intr_mode,
" " RTE_INTR_MODE_LEGACY_NAME " Use Legacy interrupt\n"
"\n");
-module_param(wc_activate, int, 0);
+module_param(wc_activate, int, S_IRUGO);
MODULE_PARM_DESC(wc_activate,
"Activate support for write combining (WC) (default=0)\n"
" 0 - disable\n"
--
2.20.1
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] linux/igb_uio: make module parameters visible in sysfs
2022-08-21 23:19 [PATCH] linux/igb_uio: make module parameters visible in sysfs Shinae Woo
@ 2023-10-31 16:59 ` Stephen Hemminger
0 siblings, 0 replies; 4+ messages in thread
From: Stephen Hemminger @ 2023-10-31 16:59 UTC (permalink / raw)
To: Shinae Woo; +Cc: dev
On Sun, 21 Aug 2022 16:19:50 -0700
Shinae Woo <shinae@alkira.net> wrote:
> diff --git a/linux/igb_uio/igb_uio.c b/linux/igb_uio/igb_uio.c
> index 33e0e02..c927ae6 100644
> --- a/linux/igb_uio/igb_uio.c
> +++ b/linux/igb_uio/igb_uio.c
> @@ -44,7 +44,7 @@ struct rte_uio_pci_dev {
> };
>
> static int wc_activate;
> -static char *intr_mode;
> +static char *intr_mode = RTE_INTR_MODE_MSIX_NAME;
Since intr_mode is now initialized you can remove the code that checks for
it being NULL.
diff --git a/linux/igb_uio/igb_uio.c b/linux/igb_uio/igb_uio.c
index aea67da..11141d4 100644
--- a/linux/igb_uio/igb_uio.c
+++ b/linux/igb_uio/igb_uio.c
@@ -44,7 +44,7 @@ struct rte_uio_pci_dev {
};
static int wc_activate;
-static char *intr_mode;
+static char *intr_mode = RTE_INTR_MODE_MSIX_NAME;
static enum rte_intr_mode igbuio_intr_mode_preferred = RTE_INTR_MODE_MSIX;
/* sriov sysfs */
static ssize_t
@@ -591,11 +591,6 @@ igbuio_pci_remove(struct pci_dev *dev)
static int
igbuio_config_intr_mode(char *intr_str)
{
- if (!intr_str) {
- pr_info("Use MSIX interrupt by default\n");
- return 0;
- }
-
if (!strcmp(intr_str, RTE_INTR_MODE_MSIX_NAME)) {
igbuio_intr_mode_preferred = RTE_INTR_MODE_MSIX;
pr_info("Use MSIX interrupt\n");
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] linux/igb_uio: make module parameters visible in sysfs
2022-08-21 22:12 Shinae Woo
@ 2023-07-06 2:40 ` Stephen Hemminger
0 siblings, 0 replies; 4+ messages in thread
From: Stephen Hemminger @ 2023-07-06 2:40 UTC (permalink / raw)
To: Shinae Woo; +Cc: dev
On Sun, 21 Aug 2022 15:12:13 -0700
Shinae Woo <shinae@alkira.net> wrote:
> - explicitly set default value for intr_mode
> - give read permission on wc_activate
> - applying patch gives below visibility
>
> ```
> $ more /sys/module/igb_uio/parameters/* | cat
> ::::::::::::::
> /sys/module/igb_uio/parameters/intr_mode
> ::::::::::::::
> msix
> ::::::::::::::
> /sys/module/igb_uio/parameters/wc_activate
> ::::::::::::::
> 0
> ```
>
> Signed-off-by: Shinae Woo <shinae@alkira.net>
Looks ok.
This would have to go against dpdk-kmods tree.
Checkpatch is being overly picky here
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] linux/igb_uio: make module parameters visible in sysfs
@ 2022-08-21 22:12 Shinae Woo
2023-07-06 2:40 ` Stephen Hemminger
0 siblings, 1 reply; 4+ messages in thread
From: Shinae Woo @ 2022-08-21 22:12 UTC (permalink / raw)
To: dev
- explicitly set default value for intr_mode
- give read permission on wc_activate
- applying patch gives below visibility
```
$ more /sys/module/igb_uio/parameters/* | cat
::::::::::::::
/sys/module/igb_uio/parameters/intr_mode
::::::::::::::
msix
::::::::::::::
/sys/module/igb_uio/parameters/wc_activate
::::::::::::::
0
```
Signed-off-by: Shinae Woo <shinae@alkira.net>
---
linux/igb_uio/igb_uio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/linux/igb_uio/igb_uio.c b/linux/igb_uio/igb_uio.c
index 33e0e02..c927ae6 100644
--- a/linux/igb_uio/igb_uio.c
+++ b/linux/igb_uio/igb_uio.c
@@ -44,7 +44,7 @@ struct rte_uio_pci_dev {
};
static int wc_activate;
-static char *intr_mode;
+static char *intr_mode = RTE_INTR_MODE_MSIX_NAME;
static enum rte_intr_mode igbuio_intr_mode_preferred = RTE_INTR_MODE_MSIX;
/* sriov sysfs */
static ssize_t
@@ -663,7 +663,7 @@ MODULE_PARM_DESC(intr_mode,
" " RTE_INTR_MODE_LEGACY_NAME " Use Legacy interrupt\n"
"\n");
-module_param(wc_activate, int, 0);
+module_param(wc_activate, int, S_IRUGO);
MODULE_PARM_DESC(wc_activate,
"Activate support for write combining (WC) (default=0)\n"
" 0 - disable\n"
--
2.20.1
^ permalink raw reply [flat|nested] 4+ messages in thread
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2023-10-31 16:59 ` Stephen Hemminger
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2023-07-06 2:40 ` Stephen Hemminger
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