diff options
Diffstat (limited to 'drivers/net/fjes/fjes_hw.c')
| -rw-r--r-- | drivers/net/fjes/fjes_hw.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/net/fjes/fjes_hw.c b/drivers/net/fjes/fjes_hw.c index e9f494bd70ad..0dbafedc0a34 100644 --- a/drivers/net/fjes/fjes_hw.c +++ b/drivers/net/fjes/fjes_hw.c @@ -216,6 +216,7 @@ static int fjes_hw_setup(struct fjes_hw *hw) u8 mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; struct fjes_device_command_param param; struct ep_share_mem_info *buf_pair; + unsigned long flags; size_t mem_size; int result; int epidx; @@ -264,10 +265,12 @@ static int fjes_hw_setup(struct fjes_hw *hw) if (result) return result; + spin_lock_irqsave(&hw->rx_status_lock, flags); fjes_hw_setup_epbuf(&buf_pair->tx, mac, fjes_support_mtu[0]); fjes_hw_setup_epbuf(&buf_pair->rx, mac, fjes_support_mtu[0]); + spin_unlock_irqrestore(&hw->rx_status_lock, flags); } } @@ -329,6 +332,7 @@ int fjes_hw_init(struct fjes_hw *hw) INIT_WORK(&hw->epstop_task, fjes_hw_epstop_task); mutex_init(&hw->hw_info.lock); + spin_lock_init(&hw->rx_status_lock); hw->max_epid = fjes_hw_get_max_epid(hw); hw->my_epid = fjes_hw_get_my_epid(hw); @@ -736,6 +740,7 @@ fjes_hw_get_partner_ep_status(struct fjes_hw *hw, int epid) void fjes_hw_raise_epstop(struct fjes_hw *hw) { enum ep_partner_status status; + unsigned long flags; int epidx; for (epidx = 0; epidx < hw->max_epid; epidx++) { @@ -755,8 +760,10 @@ void fjes_hw_raise_epstop(struct fjes_hw *hw) set_bit(epidx, &hw->hw_info.buffer_unshare_reserve_bit); set_bit(epidx, &hw->txrx_stop_req_bit); + spin_lock_irqsave(&hw->rx_status_lock, flags); hw->ep_shm_info[epidx].tx.info->v1i.rx_status |= FJES_RX_STOP_REQ_REQUEST; + spin_unlock_irqrestore(&hw->rx_status_lock, flags); } } @@ -938,6 +945,7 @@ static void fjes_hw_update_zone_task(struct work_struct *work) struct fjes_adapter *adapter; struct net_device *netdev; + unsigned long flags; ulong unshare_bit = 0; ulong share_bit = 0; @@ -1030,8 +1038,10 @@ static void fjes_hw_update_zone_task(struct work_struct *work) continue; if (test_bit(epidx, &share_bit)) { + spin_lock_irqsave(&hw->rx_status_lock, flags); fjes_hw_setup_epbuf(&hw->ep_shm_info[epidx].tx, netdev->dev_addr, netdev->mtu); + spin_unlock_irqrestore(&hw->rx_status_lock, flags); mutex_lock(&hw->hw_info.lock); @@ -1075,10 +1085,14 @@ static void fjes_hw_update_zone_task(struct work_struct *work) mutex_unlock(&hw->hw_info.lock); - if (ret == 0) + if (ret == 0) { + spin_lock_irqsave(&hw->rx_status_lock, flags); fjes_hw_setup_epbuf( &hw->ep_shm_info[epidx].tx, netdev->dev_addr, netdev->mtu); + spin_unlock_irqrestore(&hw->rx_status_lock, + flags); + } } if (test_bit(epidx, &irq_bit)) { @@ -1086,9 +1100,11 @@ static void fjes_hw_update_zone_task(struct work_struct *work) REG_ICTL_MASK_TXRX_STOP_REQ); set_bit(epidx, &hw->txrx_stop_req_bit); + spin_lock_irqsave(&hw->rx_status_lock, flags); hw->ep_shm_info[epidx].tx. info->v1i.rx_status |= FJES_RX_STOP_REQ_REQUEST; + spin_unlock_irqrestore(&hw->rx_status_lock, flags); set_bit(epidx, &hw->hw_info.buffer_unshare_reserve_bit); } } @@ -1104,6 +1120,7 @@ static void fjes_hw_epstop_task(struct work_struct *work) { struct fjes_hw *hw = container_of(work, struct fjes_hw, epstop_task); struct fjes_adapter *adapter = (struct fjes_adapter *)hw->back; + unsigned long flags; ulong remain_bit; int epid_bit; @@ -1111,9 +1128,12 @@ static void fjes_hw_epstop_task(struct work_struct *work) while ((remain_bit = hw->epstop_req_bit)) { for (epid_bit = 0; remain_bit; remain_bit >>= 1, epid_bit++) { if (remain_bit & 1) { + spin_lock_irqsave(&hw->rx_status_lock, flags); hw->ep_shm_info[epid_bit]. tx.info->v1i.rx_status |= FJES_RX_STOP_REQ_DONE; + spin_unlock_irqrestore(&hw->rx_status_lock, + flags); clear_bit(epid_bit, &hw->epstop_req_bit); set_bit(epid_bit, |