diff options
| author | Dmytro Linkin <dlinkin@nvidia.com> | 2021-06-02 15:17:14 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-02 14:08:36 -0700 |
| commit | d395381909a32060927e3f90116f938379be0636 (patch) | |
| tree | 693d5f1bd08df85caa8d90614c3857579a7b6345 /drivers/net/netdevsim/dev.c | |
| parent | 53c7bb553056d3a6713ea413576c6d1b0c3f0f61 (diff) | |
| download | linux-d395381909a32060927e3f90116f938379be0636.tar.gz linux-d395381909a32060927e3f90116f938379be0636.tar.bz2 linux-d395381909a32060927e3f90116f938379be0636.zip | |
netdevsim: Add max_vfs to bus_dev
Currently there is no limit to the number of VFs netdevsim can enable.
In a real systems this value exist and used by the driver.
Fore example, some features might need to consider this value when
allocating memory.
Expose max_vfs variable to debugfs as configurable resource. If are VFs
configured (num_vfs != 0) then changing of max_vfs not allowed.
Co-developed-by: Yuval Avnery <yuvalav@nvidia.com>
Signed-off-by: Yuval Avnery <yuvalav@nvidia.com>
Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netdevsim/dev.c')
| -rw-r--r-- | drivers/net/netdevsim/dev.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 6189a4c0d39e..12df93a34bfd 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -192,6 +192,14 @@ static const struct file_operations nsim_dev_trap_fa_cookie_fops = { .owner = THIS_MODULE, }; +static const struct file_operations nsim_dev_max_vfs_fops = { + .open = simple_open, + .read = nsim_bus_dev_max_vfs_read, + .write = nsim_bus_dev_max_vfs_write, + .llseek = generic_file_llseek, + .owner = THIS_MODULE, +}; + static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev) { char dev_ddir_name[sizeof(DRV_NAME) + 10]; @@ -231,6 +239,11 @@ static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev) debugfs_create_bool("fail_trap_policer_counter_get", 0600, nsim_dev->ddir, &nsim_dev->fail_trap_policer_counter_get); + nsim_dev->max_vfs = debugfs_create_file("max_vfs", + 0600, + nsim_dev->ddir, + nsim_dev->nsim_bus_dev, + &nsim_dev_max_vfs_fops); nsim_udp_tunnels_debugfs_create(nsim_dev); return 0; } |