From: Dhananjay Phadke Date: Tue, 5 May 2009 19:05:07 +0000 (+0000) Subject: netxen: fix mac list management X-Git-Tag: v2.6.31-rc1~14^2~552 X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=commitdiff_plain;h=5cf4d323f8864dab818d500ec74f2fcb9ad5bf89 netxen: fix mac list management o use standard linked list api for mac addr list management in NX3031. o release mac addresses in firmware in dev close(). Signed-off-by: Dhananjay Phadke Signed-off-by: David S. Miller --- diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h index 8dacfbb..d368e24 100644 --- a/drivers/net/netxen/netxen_nic.h +++ b/drivers/net/netxen/netxen_nic.h @@ -1019,8 +1019,8 @@ typedef struct { #define NETXEN_MAC_DEL 2 typedef struct nx_mac_list_s { - struct nx_mac_list_s *next; - uint8_t mac_addr[MAX_ADDR_LEN]; + struct list_head list; + uint8_t mac_addr[ETH_ALEN+2]; } nx_mac_list_t; /* @@ -1213,7 +1213,7 @@ struct netxen_adapter { struct net_device *netdev; struct pci_dev *pdev; - nx_mac_list_t *mac_list; + struct list_head mac_list; u32 curr_window; u32 crb_win; diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c index 23c974a..be643ea 100644 --- a/drivers/net/netxen/netxen_nic_hw.c +++ b/drivers/net/netxen/netxen_nic_hw.c @@ -470,45 +470,6 @@ void netxen_p2_nic_set_multi(struct net_device *netdev) netxen_nic_set_mcast_addr(adapter, index, null_addr); } -static int nx_p3_nic_add_mac(struct netxen_adapter *adapter, - u8 *addr, nx_mac_list_t **add_list, nx_mac_list_t **del_list) -{ - nx_mac_list_t *cur, *prev; - - /* if in del_list, move it to adapter->mac_list */ - for (cur = *del_list, prev = NULL; cur;) { - if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) { - if (prev == NULL) - *del_list = cur->next; - else - prev->next = cur->next; - cur->next = adapter->mac_list; - adapter->mac_list = cur; - return 0; - } - prev = cur; - cur = cur->next; - } - - /* make sure to add each mac address only once */ - for (cur = adapter->mac_list; cur; cur = cur->next) { - if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) - return 0; - } - /* not in del_list, create new entry and add to add_list */ - cur = kmalloc(sizeof(*cur), in_atomic()? GFP_ATOMIC : GFP_KERNEL); - if (cur == NULL) { - printk(KERN_ERR "%s: cannot allocate memory. MAC filtering may" - "not work properly from now.\n", __func__); - return -1; - } - - memcpy(cur->mac_addr, addr, ETH_ALEN); - cur->next = *add_list; - *add_list = cur; - return 0; -} - static int netxen_send_cmd_descs(struct netxen_adapter *adapter, struct cmd_desc_type0 *cmd_desc_arr, int nr_desc) @@ -555,14 +516,12 @@ netxen_send_cmd_descs(struct netxen_adapter *adapter, return 0; } -static int nx_p3_sre_macaddr_change(struct net_device *dev, - u8 *addr, unsigned op) +static int +nx_p3_sre_macaddr_change(struct netxen_adapter *adapter, u8 *addr, unsigned op) { - struct netxen_adapter *adapter = netdev_priv(dev); nx_nic_req_t req; nx_mac_req_t *mac_req; u64 word; - int rv; memset(&req, 0, sizeof(nx_nic_req_t)); req.qhdr = cpu_to_le64(NX_NIC_REQUEST << 23); @@ -574,28 +533,51 @@ static int nx_p3_sre_macaddr_change(struct net_device *dev, mac_req->op = op; memcpy(mac_req->mac_addr, addr, 6); - rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1); - if (rv != 0) { - printk(KERN_ERR "ERROR. Could not send mac update\n"); - return rv; + return netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1); +} + +static int nx_p3_nic_add_mac(struct netxen_adapter *adapter, + u8 *addr, struct list_head *del_list) +{ + struct list_head *head; + nx_mac_list_t *cur; + + /* look up if already exists */ + list_for_each(head, del_list) { + cur = list_entry(head, nx_mac_list_t, list); + + if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) { + list_move_tail(head, &adapter->mac_list); + return 0; + } } - return 0; + cur = kzalloc(sizeof(nx_mac_list_t), GFP_ATOMIC); + if (cur == NULL) { + printk(KERN_ERR "%s: failed to add mac address filter\n", + adapter->netdev->name); + return -ENOMEM; + } + memcpy(cur->mac_addr, addr, ETH_ALEN); + list_add_tail(&cur->list, &adapter->mac_list); + return nx_p3_sre_macaddr_change(adapter, + cur->mac_addr, NETXEN_MAC_ADD); } void netxen_p3_nic_set_multi(struct net_device *netdev) { struct netxen_adapter *adapter = netdev_priv(netdev); - nx_mac_list_t *cur, *next, *del_list, *add_list = NULL; struct dev_mc_list *mc_ptr; u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; u32 mode = VPORT_MISS_MODE_DROP; + LIST_HEAD(del_list); + struct list_head *head; + nx_mac_list_t *cur; - del_list = adapter->mac_list; - adapter->mac_list = NULL; + list_splice_tail_init(&adapter->mac_list, &del_list); - nx_p3_nic_add_mac(adapter, netdev->dev_addr, &add_list, &del_list); - nx_p3_nic_add_mac(adapter, bcast_addr, &add_list, &del_list); + nx_p3_nic_add_mac(adapter, netdev->dev_addr, &del_list); + nx_p3_nic_add_mac(adapter, bcast_addr, &del_list); if (netdev->flags & IFF_PROMISC) { mode = VPORT_MISS_MODE_ACCEPT_ALL; @@ -611,25 +593,20 @@ void netxen_p3_nic_set_multi(struct net_device *netdev) if (netdev->mc_count > 0) { for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) { - nx_p3_nic_add_mac(adapter, mc_ptr->dmi_addr, - &add_list, &del_list); + nx_p3_nic_add_mac(adapter, mc_ptr->dmi_addr, &del_list); } } send_fw_cmd: adapter->set_promisc(adapter, mode); - for (cur = del_list; cur;) { - nx_p3_sre_macaddr_change(netdev, cur->mac_addr, NETXEN_MAC_DEL); - next = cur->next; + head = &del_list; + while (!list_empty(head)) { + cur = list_entry(head->next, nx_mac_list_t, list); + + nx_p3_sre_macaddr_change(adapter, + cur->mac_addr, NETXEN_MAC_DEL); + list_del(&cur->list); kfree(cur); - cur = next; - } - for (cur = add_list; cur;) { - nx_p3_sre_macaddr_change(netdev, cur->mac_addr, NETXEN_MAC_ADD); - next = cur->next; - cur->next = adapter->mac_list; - adapter->mac_list = cur; - cur = next; } } @@ -654,14 +631,15 @@ int netxen_p3_nic_set_promisc(struct netxen_adapter *adapter, u32 mode) void netxen_p3_free_mac_list(struct netxen_adapter *adapter) { - nx_mac_list_t *cur, *next; - - cur = adapter->mac_list; - - while (cur) { - next = cur->next; + nx_mac_list_t *cur; + struct list_head *head = &adapter->mac_list; + + while (!list_empty(head)) { + cur = list_entry(head->next, nx_mac_list_t, list); + nx_p3_sre_macaddr_change(adapter, + cur->mac_addr, NETXEN_MAC_DEL); + list_del(&cur->list); kfree(cur); - cur = next; } } diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 6a496b1..a5577f8 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -815,6 +815,9 @@ netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) if (adapter->stop_port) adapter->stop_port(adapter); + if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) + netxen_p3_free_mac_list(adapter); + netxen_release_tx_buffers(adapter); FLUSH_SCHEDULED_WORK(); @@ -961,6 +964,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) rwlock_init(&adapter->adapter_lock); spin_lock_init(&adapter->tx_clean_lock); + INIT_LIST_HEAD(&adapter->mac_list); err = netxen_setup_pci_map(adapter); if (err) @@ -1114,9 +1118,6 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { netxen_nic_detach(adapter); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_p3_free_mac_list(adapter); } if (adapter->portnum == 0)