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Date: Sat, 20 Oct 2012 21:31:41 +0530
From: Padmanabh Ratnakar <padmanabh.ratnakar@...lex.com>
To: <netdev@...r.kernel.org>
CC: Padmanabh Ratnakar <padmanabh.ratnakar@...lex.com>
Subject: [PATCH net-next 01/14] be2net: Fix driver load failure for different FW configs in Lancer
Driver assumes FW resource counts and capabilities while creating queues and
using functionality like RSS. This causes driver load to fail in FW configs
where resources and capabilities are reduced. Fix this by querying FW
configuration during probe and using resources and capabilities accordingly.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@...lex.com>
---
drivers/net/ethernet/emulex/benet/be.h | 10 ++-
drivers/net/ethernet/emulex/benet/be_cmds.c | 150 ++++++++++++++++++++++-
drivers/net/ethernet/emulex/benet/be_cmds.h | 66 ++++++++++-
drivers/net/ethernet/emulex/benet/be_main.c | 177 +++++++++++++++++++-------
4 files changed, 349 insertions(+), 54 deletions(-)
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index cf4c05b..dc6ec6b 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -378,7 +378,6 @@ struct be_adapter {
struct be_drv_stats drv_stats;
u16 vlans_added;
- u16 max_vlans; /* Number of vlans supported */
u8 vlan_tag[VLAN_N_VID];
u8 vlan_prio_bmap; /* Available Priority BitMap */
u16 recommended_prio; /* Recommended Priority */
@@ -434,10 +433,17 @@ struct be_adapter {
struct phy_info phy;
u8 wol_cap;
bool wol;
- u32 max_pmac_cnt; /* Max secondary UC MACs programmable */
u32 uc_macs; /* Count of secondary UC MAC programmed */
u32 msg_enable;
int be_get_temp_freq;
+ u16 max_mcast_mac;
+ u16 max_tx_queues;
+ u16 max_rss_queues;
+ u16 max_rx_queues;
+ u16 max_pmac_cnt;
+ u16 max_vlans;
+ u16 max_event_queues;
+ u32 if_cap_flags;
};
#define be_physfn(adapter) (!adapter->virtfn)
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index af60bb2..094b5f3 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1658,9 +1658,9 @@ int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 value)
/* Reset mcast promisc mode if already set by setting mask
* and not setting flags field
*/
- if (!lancer_chip(adapter) || be_physfn(adapter))
- req->if_flags_mask |=
- cpu_to_le32(BE_IF_FLAGS_MCAST_PROMISCUOUS);
+ req->if_flags_mask |=
+ cpu_to_le32(BE_IF_FLAGS_MCAST_PROMISCUOUS &
+ adapter->if_cap_flags);
req->mcast_num = cpu_to_le32(netdev_mc_count(adapter->netdev));
netdev_for_each_mc_addr(ha, adapter->netdev)
@@ -2792,6 +2792,150 @@ err:
return status;
}
+static struct be_nic_resource_desc *be_get_nic_desc(u8 *buf, u32 desc_count,
+ u32 max_buf_size)
+{
+ struct be_nic_resource_desc *desc = (struct be_nic_resource_desc *)buf;
+ int i;
+
+ for (i = 0; i < desc_count; i++) {
+ desc->desc_len = RESOURCE_DESC_SIZE;
+ if (((void *)desc + desc->desc_len) >
+ (void *)(buf + max_buf_size)) {
+ desc = NULL;
+ break;
+ }
+
+ if (desc->desc_type == NIC_RESOURCE_DESC_TYPE_ID)
+ break;
+
+ desc = (void *)desc + desc->desc_len;
+ }
+
+ if (!desc || i == MAX_RESOURCE_DESC)
+ return NULL;
+
+ return desc;
+}
+
+/* Uses Mbox */
+int be_cmd_get_func_config(struct be_adapter *adapter)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_get_func_config *req;
+ int status;
+ struct be_dma_mem cmd;
+
+ memset(&cmd, 0, sizeof(struct be_dma_mem));
+ cmd.size = sizeof(struct be_cmd_resp_get_func_config);
+ cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size,
+ &cmd.dma);
+ if (!cmd.va) {
+ dev_err(&adapter->pdev->dev, "Memory alloc failure\n");
+ return -ENOMEM;
+ }
+ if (mutex_lock_interruptible(&adapter->mbox_lock))
+ return -1;
+
+ wrb = wrb_from_mbox(adapter);
+ if (!wrb) {
+ status = -EBUSY;
+ goto err;
+ }
+
+ req = cmd.va;
+
+ be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_GET_FUNC_CONFIG,
+ cmd.size, wrb, &cmd);
+
+ status = be_mbox_notify_wait(adapter);
+ if (!status) {
+ struct be_cmd_resp_get_func_config *resp = cmd.va;
+ u32 desc_count = le32_to_cpu(resp->desc_count);
+ struct be_nic_resource_desc *desc;
+
+ desc = be_get_nic_desc(resp->func_param, desc_count,
+ sizeof(resp->func_param));
+ if (!desc) {
+ status = -EINVAL;
+ goto err;
+ }
+
+ adapter->max_pmac_cnt = le16_to_cpu(desc->unicast_mac_count);
+ adapter->max_vlans = le16_to_cpu(desc->vlan_count);
+ adapter->max_mcast_mac = le16_to_cpu(desc->mcast_mac_count);
+ adapter->max_tx_queues = le16_to_cpu(desc->txq_count);
+ adapter->max_rss_queues = le16_to_cpu(desc->rssq_count);
+ adapter->max_rx_queues = le16_to_cpu(desc->rq_count);
+
+ adapter->max_event_queues = le16_to_cpu(desc->eq_count);
+ adapter->if_cap_flags = le32_to_cpu(desc->cap_flags);
+ }
+err:
+ mutex_unlock(&adapter->mbox_lock);
+ pci_free_consistent(adapter->pdev, cmd.size,
+ cmd.va, cmd.dma);
+ return status;
+}
+
+ /* Uses sync mcc */
+int be_cmd_get_profile_config(struct be_adapter *adapter, u32 *cap_flags,
+ u8 domain)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_get_profile_config *req;
+ int status;
+ struct be_dma_mem cmd;
+
+ memset(&cmd, 0, sizeof(struct be_dma_mem));
+ cmd.size = sizeof(struct be_cmd_resp_get_profile_config);
+ cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size,
+ &cmd.dma);
+ if (!cmd.va) {
+ dev_err(&adapter->pdev->dev, "Memory alloc failure\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_bh(&adapter->mcc_lock);
+
+ wrb = wrb_from_mccq(adapter);
+ if (!wrb) {
+ status = -EBUSY;
+ goto err;
+ }
+
+ req = cmd.va;
+
+ be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_GET_PROFILE_CONFIG,
+ cmd.size, wrb, &cmd);
+
+ req->type = ACTIVE_PROFILE_TYPE;
+ req->hdr.domain = domain;
+
+ status = be_mcc_notify_wait(adapter);
+ if (!status) {
+ struct be_cmd_resp_get_profile_config *resp = cmd.va;
+ u32 desc_count = le32_to_cpu(resp->desc_count);
+ struct be_nic_resource_desc *desc;
+
+ desc = be_get_nic_desc(resp->func_param, desc_count,
+ sizeof(resp->func_param));
+
+ if (!desc) {
+ status = -EINVAL;
+ goto err;
+ }
+ *cap_flags = le32_to_cpu(desc->cap_flags);
+ }
+err:
+ spin_unlock_bh(&adapter->mcc_lock);
+ pci_free_consistent(adapter->pdev, cmd.size,
+ cmd.va, cmd.dma);
+ return status;
+}
+
int be_roce_mcc_cmd(void *netdev_handle, void *wrb_payload,
int wrb_payload_size, u16 *cmd_status, u16 *ext_status)
{
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 0936e21..c2bf4df 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -196,6 +196,8 @@ struct be_mcc_mailbox {
#define OPCODE_COMMON_GET_MAC_LIST 147
#define OPCODE_COMMON_SET_MAC_LIST 148
#define OPCODE_COMMON_GET_HSW_CONFIG 152
+#define OPCODE_COMMON_GET_FUNC_CONFIG 160
+#define OPCODE_COMMON_GET_PROFILE_CONFIG 164
#define OPCODE_COMMON_SET_HSW_CONFIG 153
#define OPCODE_COMMON_READ_OBJECT 171
#define OPCODE_COMMON_WRITE_OBJECT 172
@@ -1684,6 +1686,66 @@ struct be_cmd_req_set_ext_fat_caps {
struct be_fat_conf_params set_params;
};
+#define RESOURCE_DESC_SIZE 72
+#define NIC_RESOURCE_DESC_TYPE_ID 0x41
+#define MAX_RESOURCE_DESC 4
+struct be_nic_resource_desc {
+ u8 desc_type;
+ u8 desc_len;
+ u8 rsvd1;
+ u8 flags;
+ u8 vf_num;
+ u8 rsvd2;
+ u8 pf_num;
+ u8 rsvd3;
+ u16 unicast_mac_count;
+ u8 rsvd4[6];
+ u16 mcc_count;
+ u16 vlan_count;
+ u16 mcast_mac_count;
+ u16 txq_count;
+ u16 rq_count;
+ u16 rssq_count;
+ u16 lro_count;
+ u16 cq_count;
+ u16 toe_conn_count;
+ u16 eq_count;
+ u32 rsvd5;
+ u32 cap_flags;
+ u8 link_param;
+ u8 rsvd6[3];
+ u32 bw_min;
+ u32 bw_max;
+ u8 acpi_params;
+ u8 wol_param;
+ u16 rsvd7;
+ u32 rsvd8[3];
+};
+
+struct be_cmd_req_get_func_config {
+ struct be_cmd_req_hdr hdr;
+};
+
+struct be_cmd_resp_get_func_config {
+ struct be_cmd_req_hdr hdr;
+ u32 desc_count;
+ u8 func_param[MAX_RESOURCE_DESC * RESOURCE_DESC_SIZE];
+};
+
+#define ACTIVE_PROFILE_TYPE 0x2
+struct be_cmd_req_get_profile_config {
+ struct be_cmd_req_hdr hdr;
+ u8 rsvd;
+ u8 type;
+ u16 rsvd1;
+};
+
+struct be_cmd_resp_get_profile_config {
+ struct be_cmd_req_hdr hdr;
+ u32 desc_count;
+ u8 func_param[MAX_RESOURCE_DESC * RESOURCE_DESC_SIZE];
+};
+
extern int be_pci_fnum_get(struct be_adapter *adapter);
extern int be_fw_wait_ready(struct be_adapter *adapter);
extern int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
@@ -1798,4 +1860,6 @@ extern int be_cmd_set_ext_fat_capabilites(struct be_adapter *adapter,
extern int lancer_wait_ready(struct be_adapter *adapter);
extern int lancer_test_and_set_rdy_state(struct be_adapter *adapter);
extern int be_cmd_query_port_name(struct be_adapter *adapter, u8 *port_name);
-
+extern int be_cmd_get_func_config(struct be_adapter *adapter);
+extern int be_cmd_get_profile_config(struct be_adapter *adapter, u32 *cap_flags,
+ u8 domain);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index d1b6cc5..9b734a0 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -917,7 +917,7 @@ static void be_set_rx_mode(struct net_device *netdev)
/* Enable multicast promisc if num configured exceeds what we support */
if (netdev->flags & IFF_ALLMULTI ||
- netdev_mc_count(netdev) > BE_MAX_MC) {
+ netdev_mc_count(netdev) > adapter->max_mcast_mac) {
be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
goto done;
}
@@ -1837,12 +1837,13 @@ static void be_tx_queues_destroy(struct be_adapter *adapter)
static int be_num_txqs_want(struct be_adapter *adapter)
{
- if (sriov_want(adapter) || be_is_mc(adapter) ||
- lancer_chip(adapter) || !be_physfn(adapter) ||
+ if ((!lancer_chip(adapter) && sriov_want(adapter)) ||
+ be_is_mc(adapter) ||
+ (!lancer_chip(adapter) && !be_physfn(adapter)) ||
adapter->generation == BE_GEN2)
return 1;
else
- return MAX_TX_QS;
+ return adapter->max_tx_queues;
}
static int be_tx_cqs_create(struct be_adapter *adapter)
@@ -2177,9 +2178,11 @@ static void be_msix_disable(struct be_adapter *adapter)
static uint be_num_rss_want(struct be_adapter *adapter)
{
u32 num = 0;
+
if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
- !sriov_want(adapter) && be_physfn(adapter)) {
- num = (adapter->be3_native) ? BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
+ (lancer_chip(adapter) ||
+ (!sriov_want(adapter) && be_physfn(adapter)))) {
+ num = adapter->max_rss_queues;
num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
}
return num;
@@ -2579,10 +2582,30 @@ static int be_clear(struct be_adapter *adapter)
be_tx_queues_destroy(adapter);
be_evt_queues_destroy(adapter);
+ kfree(adapter->pmac_id);
+ adapter->pmac_id = NULL;
+
be_msix_disable(adapter);
return 0;
}
+static void be_get_vf_if_cap_flags(struct be_adapter *adapter,
+ u32 *cap_flags, u8 domain)
+{
+ bool profile_present = false;
+ int status;
+
+ if (lancer_chip(adapter)) {
+ status = be_cmd_get_profile_config(adapter, cap_flags, domain);
+ if (!status)
+ profile_present = true;
+ }
+
+ if (!profile_present)
+ *cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
+ BE_IF_FLAGS_MULTICAST;
+}
+
static int be_vf_setup_init(struct be_adapter *adapter)
{
struct be_vf_cfg *vf_cfg;
@@ -2634,9 +2657,13 @@ static int be_vf_setup(struct be_adapter *adapter)
if (status)
goto err;
- cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
- BE_IF_FLAGS_MULTICAST;
for_all_vfs(adapter, vf_cfg, vf) {
+ be_get_vf_if_cap_flags(adapter, &cap_flags, vf + 1);
+
+ en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
+ BE_IF_FLAGS_BROADCAST |
+ BE_IF_FLAGS_MULTICAST);
+
status = be_cmd_if_create(adapter, cap_flags, en_flags,
&vf_cfg->if_handle, vf + 1);
if (status)
@@ -2712,12 +2739,93 @@ static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
return status;
}
+static void be_get_resources(struct be_adapter *adapter)
+{
+ int status;
+ bool profile_present = false;
+
+ if (lancer_chip(adapter)) {
+ status = be_cmd_get_func_config(adapter);
+
+ if (!status)
+ profile_present = true;
+ }
+
+ if (profile_present) {
+ /* Sanity fixes for Lancer */
+ adapter->max_pmac_cnt = min_t(u16, adapter->max_pmac_cnt,
+ BE_UC_PMAC_COUNT);
+ adapter->max_vlans = min_t(u16, adapter->max_vlans,
+ BE_NUM_VLANS_SUPPORTED);
+ adapter->max_mcast_mac = min_t(u16, adapter->max_mcast_mac,
+ BE_MAX_MC);
+ adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
+ MAX_TX_QS);
+ adapter->max_rss_queues = min_t(u16, adapter->max_rss_queues,
+ BE3_MAX_RSS_QS);
+ adapter->max_event_queues = min_t(u16,
+ adapter->max_event_queues,
+ BE3_MAX_RSS_QS);
+
+ if (adapter->max_rss_queues &&
+ adapter->max_rss_queues == adapter->max_rx_queues)
+ adapter->max_rss_queues -= 1;
+
+ if (adapter->max_event_queues < adapter->max_rss_queues)
+ adapter->max_rss_queues = adapter->max_event_queues;
+
+ } else {
+ if (be_physfn(adapter))
+ adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
+ else
+ adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
+
+ if (adapter->function_mode & FLEX10_MODE)
+ adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
+ else
+ adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
+
+ adapter->max_mcast_mac = BE_MAX_MC;
+ adapter->max_tx_queues = MAX_TX_QS;
+ adapter->max_rss_queues = (adapter->be3_native) ?
+ BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
+ adapter->max_event_queues = BE3_MAX_RSS_QS;
+
+ adapter->if_cap_flags = BE_IF_FLAGS_UNTAGGED |
+ BE_IF_FLAGS_BROADCAST |
+ BE_IF_FLAGS_MULTICAST |
+ BE_IF_FLAGS_PASS_L3L4_ERRORS |
+ BE_IF_FLAGS_MCAST_PROMISCUOUS |
+ BE_IF_FLAGS_VLAN_PROMISCUOUS |
+ BE_IF_FLAGS_PROMISCUOUS;
+
+ if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
+ adapter->if_cap_flags |= BE_IF_FLAGS_RSS;
+ }
+}
+
/* Routine to query per function resource limits */
static int be_get_config(struct be_adapter *adapter)
{
- int pos;
+ int pos, status;
u16 dev_num_vfs;
+ status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
+ &adapter->function_mode,
+ &adapter->function_caps);
+ if (status)
+ goto err;
+
+ be_get_resources(adapter);
+
+ /* primary mac needs 1 pmac entry */
+ adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
+ sizeof(u32), GFP_KERNEL);
+ if (!adapter->pmac_id) {
+ status = -ENOMEM;
+ goto err;
+ }
+
pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
if (pos) {
pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
@@ -2726,13 +2834,14 @@ static int be_get_config(struct be_adapter *adapter)
dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
adapter->dev_num_vfs = dev_num_vfs;
}
- return 0;
+err:
+ return status;
}
static int be_setup(struct be_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
- u32 cap_flags, en_flags;
+ u32 en_flags;
u32 tx_fc, rx_fc;
int status;
u8 mac[ETH_ALEN];
@@ -2740,9 +2849,12 @@ static int be_setup(struct be_adapter *adapter)
be_setup_init(adapter);
- be_get_config(adapter);
+ if (!lancer_chip(adapter))
+ be_cmd_req_native_mode(adapter);
- be_cmd_req_native_mode(adapter);
+ status = be_get_config(adapter);
+ if (status)
+ goto err;
be_msix_enable(adapter);
@@ -2764,22 +2876,13 @@ static int be_setup(struct be_adapter *adapter)
en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
- cap_flags = en_flags | BE_IF_FLAGS_MCAST_PROMISCUOUS |
- BE_IF_FLAGS_VLAN_PROMISCUOUS | BE_IF_FLAGS_PROMISCUOUS;
- if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
- cap_flags |= BE_IF_FLAGS_RSS;
+ if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
en_flags |= BE_IF_FLAGS_RSS;
- }
- if (lancer_chip(adapter) && !be_physfn(adapter)) {
- en_flags = BE_IF_FLAGS_UNTAGGED |
- BE_IF_FLAGS_BROADCAST |
- BE_IF_FLAGS_MULTICAST;
- cap_flags = en_flags;
- }
+ en_flags = en_flags & adapter->if_cap_flags;
- status = be_cmd_if_create(adapter, cap_flags, en_flags,
+ status = be_cmd_if_create(adapter, adapter->if_cap_flags, en_flags,
&adapter->if_handle, 0);
if (status != 0)
goto err;
@@ -3437,7 +3540,6 @@ static void be_ctrl_cleanup(struct be_adapter *adapter)
if (mem->va)
dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
mem->dma);
- kfree(adapter->pmac_id);
}
static int be_ctrl_init(struct be_adapter *adapter)
@@ -3473,13 +3575,6 @@ static int be_ctrl_init(struct be_adapter *adapter)
goto free_mbox;
}
memset(rx_filter->va, 0, rx_filter->size);
-
- /* primary mac needs 1 pmac entry */
- adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
- sizeof(*adapter->pmac_id), GFP_KERNEL);
- if (!adapter->pmac_id)
- return -ENOMEM;
-
mutex_init(&adapter->mbox_lock);
spin_lock_init(&adapter->mcc_lock);
spin_lock_init(&adapter->mcc_cq_lock);
@@ -3598,26 +3693,12 @@ u32 be_get_fw_log_level(struct be_adapter *adapter)
err:
return level;
}
+
static int be_get_initial_config(struct be_adapter *adapter)
{
int status;
u32 level;
- status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
- &adapter->function_mode, &adapter->function_caps);
- if (status)
- return status;
-
- if (adapter->function_mode & FLEX10_MODE)
- adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
- else
- adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
-
- if (be_physfn(adapter))
- adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
- else
- adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
-
status = be_cmd_get_cntl_attributes(adapter);
if (status)
return status;
--
1.6.0.2
--
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