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Date: Thu, 18 Aug 2022 08:52:06 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
edumazet@...gle.com
Cc: Sylwester Dziedziuch <sylwesterx.dziedziuch@...el.com>,
netdev@...r.kernel.org, anthony.l.nguyen@...el.com,
Jedrzej Jagielski <jedrzej.jagielski@...el.com>,
Gurucharan <gurucharanx.g@...el.com>
Subject: [PATCH net-next 4/5] ice: Remove ucast_shared
From: Sylwester Dziedziuch <sylwesterx.dziedziuch@...el.com>
Remove ucast_shared as it was always true. Remove the code depending on
ucast_shared from ice_add_mac and ice_remove_mac.
Remove ice_find_ucast_rule_entry function as it was only
used when ucast_shared was set to false.
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@...el.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
Tested-by: Gurucharan <gurucharanx.g@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
drivers/net/ethernet/intel/ice/ice_main.c | 2 -
drivers/net/ethernet/intel/ice/ice_switch.c | 166 +-------------------
drivers/net/ethernet/intel/ice/ice_type.h | 2 -
3 files changed, 5 insertions(+), 165 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 8dfecdc74a18..d38c848021ef 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4662,8 +4662,6 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
ice_set_safe_mode_caps(hw);
}
- hw->ucast_shared = true;
-
err = ice_init_pf(pf);
if (err) {
dev_err(dev, "ice_init_pf failed: %d\n", err);
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 262e553e3b58..131bdba70d0f 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -3449,31 +3449,15 @@ bool ice_vlan_fltr_exist(struct ice_hw *hw, u16 vlan_id, u16 vsi_handle)
* ice_add_mac - Add a MAC address based filter rule
* @hw: pointer to the hardware structure
* @m_list: list of MAC addresses and forwarding information
- *
- * IMPORTANT: When the ucast_shared flag is set to false and m_list has
- * multiple unicast addresses, the function assumes that all the
- * addresses are unique in a given add_mac call. It doesn't
- * check for duplicates in this case, removing duplicates from a given
- * list should be taken care of in the caller of this function.
*/
int ice_add_mac(struct ice_hw *hw, struct list_head *m_list)
{
- struct ice_sw_rule_lkup_rx_tx *s_rule, *r_iter;
struct ice_fltr_list_entry *m_list_itr;
- struct list_head *rule_head;
- u16 total_elem_left, s_rule_size;
- struct ice_switch_info *sw;
- struct mutex *rule_lock; /* Lock to protect filter rule list */
- u16 num_unicast = 0;
int status = 0;
- u8 elem_sent;
if (!m_list || !hw)
return -EINVAL;
- s_rule = NULL;
- sw = hw->switch_info;
- rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
list_for_each_entry(m_list_itr, m_list, list_entry) {
u8 *add = &m_list_itr->fltr_info.l_data.mac.mac_addr[0];
u16 vsi_handle;
@@ -3492,106 +3476,13 @@ int ice_add_mac(struct ice_hw *hw, struct list_head *m_list)
if (m_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_MAC ||
is_zero_ether_addr(add))
return -EINVAL;
- if (is_unicast_ether_addr(add) && !hw->ucast_shared) {
- /* Don't overwrite the unicast address */
- mutex_lock(rule_lock);
- if (ice_find_rule_entry(hw, ICE_SW_LKUP_MAC,
- &m_list_itr->fltr_info)) {
- mutex_unlock(rule_lock);
- return -EEXIST;
- }
- mutex_unlock(rule_lock);
- num_unicast++;
- } else if (is_multicast_ether_addr(add) ||
- (is_unicast_ether_addr(add) && hw->ucast_shared)) {
- m_list_itr->status =
- ice_add_rule_internal(hw, ICE_SW_LKUP_MAC,
- m_list_itr);
- if (m_list_itr->status)
- return m_list_itr->status;
- }
- }
-
- mutex_lock(rule_lock);
- /* Exit if no suitable entries were found for adding bulk switch rule */
- if (!num_unicast) {
- status = 0;
- goto ice_add_mac_exit;
- }
-
- rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules;
-
- /* Allocate switch rule buffer for the bulk update for unicast */
- s_rule_size = ICE_SW_RULE_RX_TX_ETH_HDR_SIZE(s_rule);
- s_rule = devm_kcalloc(ice_hw_to_dev(hw), num_unicast, s_rule_size,
- GFP_KERNEL);
- if (!s_rule) {
- status = -ENOMEM;
- goto ice_add_mac_exit;
- }
-
- r_iter = s_rule;
- list_for_each_entry(m_list_itr, m_list, list_entry) {
- struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
- u8 *mac_addr = &f_info->l_data.mac.mac_addr[0];
-
- if (is_unicast_ether_addr(mac_addr)) {
- ice_fill_sw_rule(hw, &m_list_itr->fltr_info, r_iter,
- ice_aqc_opc_add_sw_rules);
- r_iter = (typeof(s_rule))((u8 *)r_iter + s_rule_size);
- }
- }
-
- /* Call AQ bulk switch rule update for all unicast addresses */
- r_iter = s_rule;
- /* Call AQ switch rule in AQ_MAX chunk */
- for (total_elem_left = num_unicast; total_elem_left > 0;
- total_elem_left -= elem_sent) {
- struct ice_sw_rule_lkup_rx_tx *entry = r_iter;
-
- elem_sent = min_t(u8, total_elem_left,
- (ICE_AQ_MAX_BUF_LEN / s_rule_size));
- status = ice_aq_sw_rules(hw, entry, elem_sent * s_rule_size,
- elem_sent, ice_aqc_opc_add_sw_rules,
- NULL);
- if (status)
- goto ice_add_mac_exit;
- r_iter = (typeof(s_rule))
- ((u8 *)r_iter + (elem_sent * s_rule_size));
- }
-
- /* Fill up rule ID based on the value returned from FW */
- r_iter = s_rule;
- list_for_each_entry(m_list_itr, m_list, list_entry) {
- struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
- u8 *mac_addr = &f_info->l_data.mac.mac_addr[0];
- struct ice_fltr_mgmt_list_entry *fm_entry;
-
- if (is_unicast_ether_addr(mac_addr)) {
- f_info->fltr_rule_id = le16_to_cpu(r_iter->index);
- f_info->fltr_act = ICE_FWD_TO_VSI;
- /* Create an entry to track this MAC address */
- fm_entry = devm_kzalloc(ice_hw_to_dev(hw),
- sizeof(*fm_entry), GFP_KERNEL);
- if (!fm_entry) {
- status = -ENOMEM;
- goto ice_add_mac_exit;
- }
- fm_entry->fltr_info = *f_info;
- fm_entry->vsi_count = 1;
- /* The book keeping entries will get removed when
- * base driver calls remove filter AQ command
- */
- list_add(&fm_entry->list_entry, rule_head);
- r_iter = (typeof(s_rule))((u8 *)r_iter + s_rule_size);
- }
+ m_list_itr->status = ice_add_rule_internal(hw, ICE_SW_LKUP_MAC,
+ m_list_itr);
+ if (m_list_itr->status)
+ return m_list_itr->status;
}
-ice_add_mac_exit:
- mutex_unlock(rule_lock);
- if (s_rule)
- devm_kfree(ice_hw_to_dev(hw), s_rule);
return status;
}
@@ -3978,38 +3869,6 @@ ice_check_if_dflt_vsi(struct ice_port_info *pi, u16 vsi_handle,
return ret;
}
-/**
- * ice_find_ucast_rule_entry - Search for a unicast MAC filter rule entry
- * @hw: pointer to the hardware structure
- * @recp_id: lookup type for which the specified rule needs to be searched
- * @f_info: rule information
- *
- * Helper function to search for a unicast rule entry - this is to be used
- * to remove unicast MAC filter that is not shared with other VSIs on the
- * PF switch.
- *
- * Returns pointer to entry storing the rule if found
- */
-static struct ice_fltr_mgmt_list_entry *
-ice_find_ucast_rule_entry(struct ice_hw *hw, u8 recp_id,
- struct ice_fltr_info *f_info)
-{
- struct ice_switch_info *sw = hw->switch_info;
- struct ice_fltr_mgmt_list_entry *list_itr;
- struct list_head *list_head;
-
- list_head = &sw->recp_list[recp_id].filt_rules;
- list_for_each_entry(list_itr, list_head, list_entry) {
- if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data,
- sizeof(f_info->l_data)) &&
- f_info->fwd_id.hw_vsi_id ==
- list_itr->fltr_info.fwd_id.hw_vsi_id &&
- f_info->flag == list_itr->fltr_info.flag)
- return list_itr;
- }
- return NULL;
-}
-
/**
* ice_remove_mac - remove a MAC address based filter rule
* @hw: pointer to the hardware structure
@@ -4026,15 +3885,12 @@ ice_find_ucast_rule_entry(struct ice_hw *hw, u8 recp_id,
int ice_remove_mac(struct ice_hw *hw, struct list_head *m_list)
{
struct ice_fltr_list_entry *list_itr, *tmp;
- struct mutex *rule_lock; /* Lock to protect filter rule list */
if (!m_list)
return -EINVAL;
- rule_lock = &hw->switch_info->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
list_for_each_entry_safe(list_itr, tmp, m_list, list_entry) {
enum ice_sw_lkup_type l_type = list_itr->fltr_info.lkup_type;
- u8 *add = &list_itr->fltr_info.l_data.mac.mac_addr[0];
u16 vsi_handle;
if (l_type != ICE_SW_LKUP_MAC)
@@ -4046,19 +3902,7 @@ int ice_remove_mac(struct ice_hw *hw, struct list_head *m_list)
list_itr->fltr_info.fwd_id.hw_vsi_id =
ice_get_hw_vsi_num(hw, vsi_handle);
- if (is_unicast_ether_addr(add) && !hw->ucast_shared) {
- /* Don't remove the unicast address that belongs to
- * another VSI on the switch, since it is not being
- * shared...
- */
- mutex_lock(rule_lock);
- if (!ice_find_ucast_rule_entry(hw, ICE_SW_LKUP_MAC,
- &list_itr->fltr_info)) {
- mutex_unlock(rule_lock);
- return -ENOENT;
- }
- mutex_unlock(rule_lock);
- }
+
list_itr->status = ice_remove_rule_internal(hw,
ICE_SW_LKUP_MAC,
list_itr);
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index 861b64322959..8651f6c735ba 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -885,8 +885,6 @@ struct ice_hw {
/* INTRL granularity in 1 us */
u8 intrl_gran;
- u8 ucast_shared; /* true if VSIs can share unicast addr */
-
#define ICE_PHY_PER_NAC 1
#define ICE_MAX_QUAD 2
#define ICE_NUM_QUAD_TYPE 2
--
2.35.1
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