| Message ID | 20230612184434.4ab332037a25.I57c33574a61edd68bd0ec1aa7009f31111fd7efe@changeid (mailing list archive) |
|---|---|
| State | New |
| Delegated to: | Miri Korenblit |
| Headers | show |
| Series | wifi: iwlwifi: updates intended for v6.5 2023-06-12 | expand |
On Mon, 2023-06-12 at 18:51 +0300, gregory.greenman@intel.com wrote: > From: Avraham Stern <avraham.stern@intel.com> > > Add an entry for setting the maximum TXOP time in microseconds. > The configured value can be read from the same entry. > > Signed-off-by: Avraham Stern <avraham.stern@intel.com> > Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> > --- > .../wireless/intel/iwlwifi/mvm/debugfs-vif.c | 38 +++++++++++++++++++ > drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 3 ++ > .../net/wireless/intel/iwlwifi/mvm/rs-fw.c | 3 ++ > 3 files changed, 44 insertions(+) > > diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c > index 3613b1fdc5d9..762bce70e262 100644 > --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c > +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c > @@ -679,6 +679,42 @@ static ssize_t iwl_dbgfs_quota_min_read(struct file *file, > return simple_read_from_buffer(user_buf, count, ppos, buf, len); > } > > +static ssize_t iwl_dbgfs_max_tx_op_write(struct ieee80211_vif *vif, char *buf, > + size_t count, loff_t *ppos) > +{ > + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); > + struct iwl_mvm *mvm = mvmvif->mvm; > + u16 value; > + int ret; > + > + ret = kstrtou16(buf, 0, &value); > + if (ret) > + return ret; > + > + mutex_lock(&mvm->mutex); > + mvmvif->max_tx_op = value; > + mutex_unlock(&mvm->mutex); This is a strange debugfs file, it only takes effect the next time iwl_mvm_rs_fw_rate_init() is called, which can be kind of random? Seems like it should force a reinit? johannes
On Wed, 2023-06-14 at 12:03 +0200, Johannes Berg wrote: > On Mon, 2023-06-12 at 18:51 +0300, gregory.greenman@intel.com wrote: > > From: Avraham Stern <avraham.stern@intel.com> > > > > Add an entry for setting the maximum TXOP time in microseconds. > > The configured value can be read from the same entry. > > > > Signed-off-by: Avraham Stern <avraham.stern@intel.com> > > Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> > > --- > > .../wireless/intel/iwlwifi/mvm/debugfs-vif.c | 38 +++++++++++++++++++ > > drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 3 ++ > > .../net/wireless/intel/iwlwifi/mvm/rs-fw.c | 3 ++ > > 3 files changed, 44 insertions(+) > > > > diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c > > index 3613b1fdc5d9..762bce70e262 100644 > > --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c > > +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c > > @@ -679,6 +679,42 @@ static ssize_t iwl_dbgfs_quota_min_read(struct file *file, > > return simple_read_from_buffer(user_buf, count, ppos, buf, len); > > } > > > > +static ssize_t iwl_dbgfs_max_tx_op_write(struct ieee80211_vif *vif, char *buf, > > + size_t count, loff_t *ppos) > > +{ > > + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); > > + struct iwl_mvm *mvm = mvmvif->mvm; > > + u16 value; > > + int ret; > > + > > + ret = kstrtou16(buf, 0, &value); > > + if (ret) > > + return ret; > > + > > + mutex_lock(&mvm->mutex); > > + mvmvif->max_tx_op = value; > > + mutex_unlock(&mvm->mutex); > > This is a strange debugfs file, it only takes effect the next time > iwl_mvm_rs_fw_rate_init() is called, which can be kind of random? Seems > like it should force a reinit? > > johannes You're right. We need to add some fixes to this commit. Let's drop it meanwhile, I'll send a new version later. I've verified that there're no any conflicts without this patch.
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c index 3613b1fdc5d9..762bce70e262 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c @@ -679,6 +679,42 @@ static ssize_t iwl_dbgfs_quota_min_read(struct file *file, return simple_read_from_buffer(user_buf, count, ppos, buf, len); } +static ssize_t iwl_dbgfs_max_tx_op_write(struct ieee80211_vif *vif, char *buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + u16 value; + int ret; + + ret = kstrtou16(buf, 0, &value); + if (ret) + return ret; + + mutex_lock(&mvm->mutex); + mvmvif->max_tx_op = value; + mutex_unlock(&mvm->mutex); + + return count; +} + +static ssize_t iwl_dbgfs_max_tx_op_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_vif *vif = file->private_data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + char buf[10]; + int len; + + mutex_lock(&mvm->mutex); + len = scnprintf(buf, sizeof(buf), "%hu\n", mvmvif->max_tx_op); + mutex_unlock(&mvm->mutex); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ @@ -698,6 +734,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20); MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10); MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32); MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(max_tx_op, 10); void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) @@ -733,6 +770,7 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir, 0600); MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir, 0600); MVM_DEBUGFS_ADD_FILE_VIF(os_device_timediff, mvmvif->dbgfs_dir, 0400); + MVM_DEBUGFS_ADD_FILE_VIF(max_tx_op, mvmvif->dbgfs_dir, 0600); if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p && mvmvif == mvm->bf_allowed_vif) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 90cb8eeec47c..afcc55231bbc 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -358,6 +358,7 @@ struct iwl_mvm_vif_link_info { * @csa_failed: CSA failed to schedule time event, report an error later * @csa_bcn_pending: indicates that we are waiting for a beacon on a new channel * @features: hw features active for this vif + * @max_tx_op: max TXOP in usecs for all ACs, zero for no limit. */ struct iwl_mvm_vif { struct iwl_mvm *mvm; @@ -443,6 +444,8 @@ struct iwl_mvm_vif { struct ieee80211_key_conf __rcu *keys[2]; } bcn_prot; + u16 max_tx_op; + struct iwl_mvm_vif_link_info deflink; struct iwl_mvm_vif_link_info *link[IEEE80211_MLD_MAX_NUM_LINKS]; }; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c index e77b6157f759..992642edfcbe 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c @@ -588,6 +588,7 @@ void iwl_mvm_rs_fw_rate_init(struct iwl_mvm *mvm, cpu_to_le16(max_amsdu_len) : 0, }; unsigned int link_id = link_conf->link_id; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); int cmd_ver; int ret; @@ -616,6 +617,8 @@ void iwl_mvm_rs_fw_rate_init(struct iwl_mvm *mvm, */ sta->deflink.agg.max_amsdu_len = max_amsdu_len; + cfg_cmd.max_tx_op = cpu_to_le16(mvmvif->max_tx_op); + cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(DATA_PATH_GROUP, TLC_MNG_CONFIG_CMD),