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-rw-r--r--drivers/net/ethernet/ibm/ibmvnic.c98
-rw-r--r--drivers/net/ethernet/ibm/ibmvnic.h9
2 files changed, 19 insertions, 88 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 27d7d2767204..18673e2fe91b 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -546,6 +546,23 @@ static int init_bounce_buffer(struct net_device *netdev)
return 0;
}
+static void release_error_buffers(struct ibmvnic_adapter *adapter)
+{
+ struct device *dev = &adapter->vdev->dev;
+ struct ibmvnic_error_buff *error_buff, *tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&adapter->error_list_lock, flags);
+ list_for_each_entry_safe(error_buff, tmp, &adapter->errors, list) {
+ list_del(&error_buff->list);
+ dma_unmap_single(dev, error_buff->dma, error_buff->len,
+ DMA_FROM_DEVICE);
+ kfree(error_buff->buff);
+ kfree(error_buff);
+ }
+ spin_unlock_irqrestore(&adapter->error_list_lock, flags);
+}
+
static int ibmvnic_login(struct net_device *netdev)
{
struct ibmvnic_adapter *adapter = netdev_priv(netdev);
@@ -588,6 +605,7 @@ static void release_resources(struct ibmvnic_adapter *adapter)
release_crq_queue(adapter);
release_stats_token(adapter);
+ release_error_buffers(adapter);
}
static int ibmvnic_open(struct net_device *netdev)
@@ -1957,13 +1975,11 @@ static void send_login(struct ibmvnic_adapter *adapter)
{
struct ibmvnic_login_rsp_buffer *login_rsp_buffer;
struct ibmvnic_login_buffer *login_buffer;
- struct ibmvnic_inflight_cmd *inflight_cmd;
struct device *dev = &adapter->vdev->dev;
dma_addr_t rsp_buffer_token;
dma_addr_t buffer_token;
size_t rsp_buffer_size;
union ibmvnic_crq crq;
- unsigned long flags;
size_t buffer_size;
__be64 *tx_list_p;
__be64 *rx_list_p;
@@ -2000,11 +2016,7 @@ static void send_login(struct ibmvnic_adapter *adapter)
dev_err(dev, "Couldn't map login rsp buffer\n");
goto buf_rsp_map_failed;
}
- inflight_cmd = kmalloc(sizeof(*inflight_cmd), GFP_ATOMIC);
- if (!inflight_cmd) {
- dev_err(dev, "Couldn't allocate inflight_cmd\n");
- goto inflight_alloc_failed;
- }
+
adapter->login_buf = login_buffer;
adapter->login_buf_token = buffer_token;
adapter->login_buf_sz = buffer_size;
@@ -2055,20 +2067,10 @@ static void send_login(struct ibmvnic_adapter *adapter)
crq.login.cmd = LOGIN;
crq.login.ioba = cpu_to_be32(buffer_token);
crq.login.len = cpu_to_be32(buffer_size);
-
- memcpy(&inflight_cmd->crq, &crq, sizeof(crq));
-
- spin_lock_irqsave(&adapter->inflight_lock, flags);
- list_add_tail(&inflight_cmd->list, &adapter->inflight);
- spin_unlock_irqrestore(&adapter->inflight_lock, flags);
-
ibmvnic_send_crq(adapter, &crq);
return;
-inflight_alloc_failed:
- dma_unmap_single(dev, rsp_buffer_token, rsp_buffer_size,
- DMA_FROM_DEVICE);
buf_rsp_map_failed:
kfree(login_rsp_buffer);
buf_rsp_alloc_failed:
@@ -2374,7 +2376,6 @@ static void handle_error_indication(union ibmvnic_crq *crq,
struct ibmvnic_adapter *adapter)
{
int detail_len = be32_to_cpu(crq->error_indication.detail_error_sz);
- struct ibmvnic_inflight_cmd *inflight_cmd;
struct device *dev = &adapter->vdev->dev;
struct ibmvnic_error_buff *error_buff;
union ibmvnic_crq new_crq;
@@ -2406,15 +2407,6 @@ static void handle_error_indication(union ibmvnic_crq *crq,
return;
}
- inflight_cmd = kmalloc(sizeof(*inflight_cmd), GFP_ATOMIC);
- if (!inflight_cmd) {
- dma_unmap_single(dev, error_buff->dma, detail_len,
- DMA_FROM_DEVICE);
- kfree(error_buff->buff);
- kfree(error_buff);
- return;
- }
-
error_buff->len = detail_len;
error_buff->error_id = crq->error_indication.error_id;
@@ -2428,13 +2420,6 @@ static void handle_error_indication(union ibmvnic_crq *crq,
new_crq.request_error_info.ioba = cpu_to_be32(error_buff->dma);
new_crq.request_error_info.len = cpu_to_be32(detail_len);
new_crq.request_error_info.error_id = crq->error_indication.error_id;
-
- memcpy(&inflight_cmd->crq, &crq, sizeof(crq));
-
- spin_lock_irqsave(&adapter->inflight_lock, flags);
- list_add_tail(&inflight_cmd->list, &adapter->inflight);
- spin_unlock_irqrestore(&adapter->inflight_lock, flags);
-
ibmvnic_send_crq(adapter, &new_crq);
}
@@ -2819,48 +2804,6 @@ out:
}
}
-static void ibmvnic_free_inflight(struct ibmvnic_adapter *adapter)
-{
- struct ibmvnic_inflight_cmd *inflight_cmd, *tmp1;
- struct device *dev = &adapter->vdev->dev;
- struct ibmvnic_error_buff *error_buff, *tmp2;
- unsigned long flags;
- unsigned long flags2;
-
- spin_lock_irqsave(&adapter->inflight_lock, flags);
- list_for_each_entry_safe(inflight_cmd, tmp1, &adapter->inflight, list) {
- switch (inflight_cmd->crq.generic.cmd) {
- case LOGIN:
- dma_unmap_single(dev, adapter->login_buf_token,
- adapter->login_buf_sz,
- DMA_BIDIRECTIONAL);
- dma_unmap_single(dev, adapter->login_rsp_buf_token,
- adapter->login_rsp_buf_sz,
- DMA_BIDIRECTIONAL);
- kfree(adapter->login_rsp_buf);
- kfree(adapter->login_buf);
- break;
- case REQUEST_ERROR_INFO:
- spin_lock_irqsave(&adapter->error_list_lock, flags2);
- list_for_each_entry_safe(error_buff, tmp2,
- &adapter->errors, list) {
- dma_unmap_single(dev, error_buff->dma,
- error_buff->len,
- DMA_FROM_DEVICE);
- kfree(error_buff->buff);
- list_del(&error_buff->list);
- kfree(error_buff);
- }
- spin_unlock_irqrestore(&adapter->error_list_lock,
- flags2);
- break;
- }
- list_del(&inflight_cmd->list);
- kfree(inflight_cmd);
- }
- spin_unlock_irqrestore(&adapter->inflight_lock, flags);
-}
-
static void ibmvnic_xport_event(struct work_struct *work)
{
struct ibmvnic_adapter *adapter = container_of(work,
@@ -2869,7 +2812,6 @@ static void ibmvnic_xport_event(struct work_struct *work)
struct device *dev = &adapter->vdev->dev;
long rc;
- ibmvnic_free_inflight(adapter);
release_sub_crqs(adapter);
if (adapter->migrated) {
rc = ibmvnic_reenable_crq_queue(adapter);
@@ -3333,9 +3275,7 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id)
spin_lock_init(&adapter->stats_lock);
INIT_LIST_HEAD(&adapter->errors);
- INIT_LIST_HEAD(&adapter->inflight);
spin_lock_init(&adapter->error_list_lock);
- spin_lock_init(&adapter->inflight_lock);
rc = ibmvnic_init(adapter);
if (rc) {
diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index 1b404cae3bc1..8fbe05d2710a 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h
@@ -913,11 +913,6 @@ struct ibmvnic_error_buff {
__be32 error_id;
};
-struct ibmvnic_inflight_cmd {
- union ibmvnic_crq crq;
- struct list_head list;
-};
-
struct ibmvnic_adapter {
struct vio_dev *vdev;
struct net_device *netdev;
@@ -978,10 +973,6 @@ struct ibmvnic_adapter {
struct completion fw_done;
- /* in-flight commands that allocate and/or map memory*/
- struct list_head inflight;
- spinlock_t inflight_lock;
-
/* partner capabilities */
u64 min_tx_queues;
u64 min_rx_queues;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.