switch driver cleanup, 2nd phase
SVN-Revision: 9330
This commit is contained in:
Gabor Juhos
parent
e9d7dc5803
commit
63c27908bf
1 changed files with 333 additions and 148 deletions
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@ -45,7 +45,7 @@ MODULE_LICENSE("GPL");
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/* ------------------------------------------------------------------------ */
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#if 1 /*def ADM5120_SWITCH_DEBUG*/
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#if 0 /*def ADM5120_SWITCH_DEBUG*/
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#define SW_DBG(f, a...) printk(KERN_DEBUG "%s: " f, DRV_NAME , ## a)
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#else
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#define SW_DBG(f, a...) do {} while (0)
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@ -63,6 +63,11 @@ MODULE_LICENSE("GPL");
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#define TX_QUEUE_LEN 28 /* Limit ring entries actually used. */
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#define TX_TIMEOUT HZ*400
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#define RX_DESCS_SIZE (RX_RING_SIZE * sizeof(struct dma_desc *))
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#define RX_SKBS_SIZE (RX_RING_SIZE * sizeof(struct sk_buff *))
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#define TX_DESCS_SIZE (TX_RING_SIZE * sizeof(struct dma_desc *))
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#define TX_SKBS_SIZE (TX_RING_SIZE * sizeof(struct sk_buff *))
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#define SKB_ALLOC_LEN (RX_MAX_PKTLEN + 32)
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#define SKB_RESERVE_LEN (NET_IP_ALIGN + NET_SKB_PAD)
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@ -140,19 +145,14 @@ static struct net_device *adm5120_devs[SWITCH_NUM_PORTS];
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/* Lookup table port -> device */
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static struct net_device *adm5120_port[SWITCH_NUM_PORTS];
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static struct dma_desc txh_descs_v[TX_RING_SIZE] __attribute__((aligned(16)));
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static struct dma_desc txl_descs_v[TX_RING_SIZE] __attribute__((aligned(16)));
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static struct dma_desc rxh_descs_v[RX_RING_SIZE] __attribute__((aligned(16)));
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static struct dma_desc rxl_descs_v[RX_RING_SIZE] __attribute__((aligned(16)));
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static struct dma_desc *txh_descs;
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static struct dma_desc *txl_descs;
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static struct dma_desc *rxh_descs;
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static struct dma_desc *rxl_descs;
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static struct sk_buff *rxl_skbuff[RX_RING_SIZE];
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static struct sk_buff *rxh_skbuff[RX_RING_SIZE];
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static struct sk_buff *txl_skbuff[TX_RING_SIZE];
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static struct sk_buff *txh_skbuff[TX_RING_SIZE];
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static dma_addr_t txl_descs_dma;
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static dma_addr_t rxl_descs_dma;
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static struct sk_buff **txl_skbuff;
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static struct sk_buff **rxl_skbuff;
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static unsigned int cur_rxl, dirty_rxl; /* producer/consumer ring indices */
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static unsigned int cur_txl, dirty_txl;
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@ -160,8 +160,10 @@ static unsigned int cur_txl, dirty_txl;
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static unsigned int sw_used;
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static spinlock_t sw_lock = SPIN_LOCK_UNLOCKED;
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static spinlock_t poll_lock = SPIN_LOCK_UNLOCKED;
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static struct net_device sw_dev;
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static struct net_device *poll_dev;
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/* ------------------------------------------------------------------------ */
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@ -175,7 +177,7 @@ static inline void sw_write_reg(u32 reg, u32 val)
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__raw_writel(val, (void __iomem *)KSEG1ADDR(ADM5120_SWITCH_BASE)+reg);
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}
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static inline void sw_int_disable(u32 mask)
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static inline void sw_int_mask(u32 mask)
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{
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u32 t;
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@ -184,7 +186,7 @@ static inline void sw_int_disable(u32 mask)
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sw_write_reg(SWITCH_REG_INT_MASK, t);
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}
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static inline void sw_int_enable(u32 mask)
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static inline void sw_int_unmask(u32 mask)
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{
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u32 t;
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@ -198,6 +200,15 @@ static inline void sw_int_ack(u32 mask)
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sw_write_reg(SWITCH_REG_INT_STATUS, mask);
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}
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static inline u32 sw_int_status(void)
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{
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u32 t;
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t = sw_read_reg(SWITCH_REG_INT_STATUS);
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t &= ~sw_read_reg(SWITCH_REG_INT_MASK);
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return t;
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}
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/* ------------------------------------------------------------------------ */
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static void sw_dump_desc(char *label, struct dma_desc *desc, int tx)
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@ -264,6 +275,64 @@ static void sw_dump_intr_mask(char *label, u32 mask)
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(mask & SWITCH_INT_CPUH) ? " CPUH" : "");
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}
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static void sw_dump_regs(void)
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{
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u32 t;
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t = SW_READ_REG(PHY_STATUS);
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SW_DBG("phy_status: %08X\n", t);
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t = SW_READ_REG(CPUP_CONF);
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SW_DBG("cpup_conf: %08X%s%s%s\n", t,
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(t & CPUP_CONF_DCPUP) ? " DCPUP" : "",
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(t & CPUP_CONF_CRCP) ? " CRCP" : "",
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(t & CPUP_CONF_BTM) ? " BTM" : "");
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t = SW_READ_REG(PORT_CONF0);
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SW_DBG("port_conf0: %08X\n", t);
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t = SW_READ_REG(PORT_CONF1);
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SW_DBG("port_conf1: %08X\n", t);
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t = SW_READ_REG(PORT_CONF2);
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SW_DBG("port_conf2: %08X\n", t);
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t = SW_READ_REG(VLAN_G1);
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SW_DBG("vlan g1: %08X\n", t);
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t = SW_READ_REG(VLAN_G2);
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SW_DBG("vlan g2: %08X\n", t);
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t = SW_READ_REG(BW_CNTL0);
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SW_DBG("bw_cntl0: %08X\n", t);
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t = SW_READ_REG(BW_CNTL1);
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SW_DBG("bw_cntl1: %08X\n", t);
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t = SW_READ_REG(PHY_CNTL0);
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SW_DBG("phy_cntl0: %08X\n", t);
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t = SW_READ_REG(PHY_CNTL1);
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SW_DBG("phy_cntl1: %08X\n", t);
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t = SW_READ_REG(PHY_CNTL2);
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SW_DBG("phy_cntl2: %08X\n", t);
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t = SW_READ_REG(PHY_CNTL3);
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SW_DBG("phy_cntl3: %08X\n", t);
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t = SW_READ_REG(PHY_CNTL4);
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SW_DBG("phy_cntl4: %08X\n", t);
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t = SW_READ_REG(INT_STATUS);
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sw_dump_intr_mask("int_status: ", t);
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t = SW_READ_REG(INT_MASK);
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sw_dump_intr_mask("int_mask: ", t);
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t = SW_READ_REG(SHDA);
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SW_DBG("shda: %08X\n", t);
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t = SW_READ_REG(SLDA);
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SW_DBG("slda: %08X\n", t);
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t = SW_READ_REG(RHDA);
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SW_DBG("rhda: %08X\n", t);
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t = SW_READ_REG(RLDA);
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SW_DBG("rlda: %08X\n", t);
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}
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/* ------------------------------------------------------------------------ */
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static inline void adm5120_rx_dma_update(struct dma_desc *desc,
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@ -276,82 +345,141 @@ static inline void adm5120_rx_dma_update(struct dma_desc *desc,
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DESC_OWN | (end ? DESC_EOR : 0);
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}
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static int adm5120_switch_rx(struct net_device *dev, int *budget)
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static void adm5120_switch_rx_refill(void)
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{
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struct sk_buff *skb, *skbn;
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struct adm5120_sw *priv;
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struct net_device *cdev;
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struct dma_desc *desc;
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int len, quota;
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unsigned int entry;
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quota = min(dev->quota, *budget);
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SW_DBG("%s polling, quota=%d\n", dev->name, quota);
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for (; cur_rxl - dirty_rxl > 0; dirty_rxl++) {
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struct dma_desc *desc;
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struct sk_buff *skb;
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entry = dirty_rxl % RX_RING_SIZE;
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desc = &rxl_descs[entry];
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skb = rxl_skbuff[entry];
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if (skb == NULL) {
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skb = alloc_skb(SKB_ALLOC_LEN, GFP_ATOMIC);
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if (skb) {
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skb_reserve(skb, SKB_RESERVE_LEN);
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rxl_skbuff[entry] = skb;
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} else {
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SW_ERR("no memory for skb\n");
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desc->buflen = 0;
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desc->buf2 = 0;
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desc->misc = 0;
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desc->buf1 = (desc->buf1 & DESC_EOR) | DESC_OWN;
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break;
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}
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}
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desc->buf2 = 0;
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desc->buflen = RX_MAX_PKTLEN;
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desc->misc = 0;
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desc->buf1 = (desc->buf1 & DESC_EOR) | DESC_OWN |
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DESC_ADDR(skb->data);
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}
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}
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static int adm5120_switch_rx(int limit)
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{
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unsigned int done = 0;
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SW_DBG("rx start, limit=%d, cur_rxl=%u, dirty_rxl=%u\n",
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limit, cur_rxl, dirty_rxl);
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sw_int_ack(SWITCH_INTS_POLL);
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desc = &rxl_descs[cur_rxl];
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while (!(desc->buf1 & DESC_OWN) && quota) {
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u32 port = desc_get_srcport(desc);
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cdev = adm5120_port[port];
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if (cdev != dev) { /* The current packet belongs to a different device */
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if ((cdev==NULL) || !netif_running(cdev)) {
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/* discard (update with old skb) */
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skb = skbn = NULL;
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goto rx_skip;
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}
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else {
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netif_rx_schedule(cdev);/* Start polling next device */
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return 1; /* return 1 -> More packets to process */
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}
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while (done < limit) {
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int entry = cur_rxl % RX_RING_SIZE;
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struct dma_desc *desc = &rxl_descs[entry];
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struct net_device *rdev;
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unsigned int port;
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}
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skb = rxl_skbuff[cur_rxl];
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len = desc_get_pktlen(desc);
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len -= ETH_CSUM_LEN;
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if (desc->buf1 & DESC_OWN)
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break;
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priv = netdev_priv(dev);
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if (len <= 0 || len > RX_MAX_PKTLEN ||
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desc_ipcsum_fail(desc)) {
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dev->stats.rx_errors++;
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skbn = NULL;
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} else {
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skbn = dev_alloc_skb(SKB_ALLOC_LEN);
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if (skbn) {
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skb_put(skb, len);
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skb->dev = dev;
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skb->protocol = eth_type_trans(skb, dev);
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skb->ip_summed = CHECKSUM_UNNECESSARY;
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dev->last_rx = jiffies;
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dev->stats.rx_packets++;
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dev->stats.rx_bytes += len;
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skb_reserve(skbn, SKB_RESERVE_LEN);
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rxl_skbuff[cur_rxl] = skbn;
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if (dirty_rxl + RX_RING_SIZE == cur_rxl)
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break;
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port = desc_get_srcport(desc);
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rdev = adm5120_port[port];
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SW_DBG("rx descriptor %u, desc=%p, skb=%p\n", entry, desc,
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rxl_skbuff[entry]);
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if ((rdev) && netif_running(rdev)) {
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struct sk_buff *skb = rxl_skbuff[entry];
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int pktlen;
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pktlen = desc_get_pktlen(desc);
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pktlen -= ETH_CSUM_LEN;
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if ((pktlen == 0) || desc_ipcsum_fail(desc)) {
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rdev->stats.rx_errors++;
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if (pktlen == 0)
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rdev->stats.rx_length_errors++;
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if (desc_ipcsum_fail(desc))
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rdev->stats.rx_crc_errors++;
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SW_DBG("rx error, recycling skb %u\n", entry);
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} else {
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SW_INFO("%s recycling!\n", dev->name);
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}
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}
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rx_skip:
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adm5120_rx_dma_update(&rxl_descs[cur_rxl],
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rxl_skbuff[cur_rxl],
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(RX_RING_SIZE-1==cur_rxl));
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if (RX_RING_SIZE == ++cur_rxl)
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cur_rxl = 0;
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desc = &rxl_descs[cur_rxl];
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if (skbn){
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netif_receive_skb(skb);
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dev->quota--;
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(*budget)--;
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quota--;
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}
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} /* while */
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skb_put(skb, pktlen);
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if (quota) {
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netif_rx_complete(dev);
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sw_int_enable(SWITCH_INTS_POLL);
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skb->dev = rdev;
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skb->protocol = eth_type_trans(skb, rdev);
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skb->ip_summed = CHECKSUM_UNNECESSARY;
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dma_cache_wback_inv((unsigned long)skb->data,
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skb->len);
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netif_receive_skb(skb);
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rdev->last_rx = jiffies;
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rdev->stats.rx_packets++;
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rdev->stats.rx_bytes += pktlen;
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rxl_skbuff[entry] = NULL;
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done++;
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}
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} else {
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SW_DBG("no rx device, recycling skb %u\n", entry);
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}
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cur_rxl++;
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if (cur_rxl - dirty_rxl > RX_RING_SIZE / 4)
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adm5120_switch_rx_refill();
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}
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adm5120_switch_rx_refill();
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SW_DBG("rx finished, cur_rxl=%u, dirty_rxl=%u, processed %d\n",
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cur_rxl, dirty_rxl, done);
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return done;
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}
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static int adm5120_switch_poll(struct net_device *dev, int *budget)
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{
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int limit = min(dev->quota, *budget);
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int done;
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u32 status;
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done = adm5120_switch_rx(limit);
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*budget -= done;
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dev->quota -= done;
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status = sw_int_status() & SWITCH_INTS_POLL;
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if ((done < limit) && (!status)) {
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spin_lock_irq(&poll_lock);
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SW_DBG("disable polling mode for %s\n", poll_dev->name);
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netif_rx_complete(poll_dev);
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sw_int_unmask(SWITCH_INTS_POLL);
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poll_dev = NULL;
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spin_unlock_irq(&poll_lock);
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return 0;
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}
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/* If there are still packets to process, return 1 */
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return 1;
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}
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@ -368,7 +496,6 @@ static void adm5120_switch_tx(void)
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if (desc->buf1 & DESC_OWN)
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break;
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sw_dump_desc("tx done", desc, 1);
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if (netif_running(skb->dev)) {
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skb->dev->stats.tx_bytes += skb->len;
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skb->dev->stats.tx_packets++;
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@ -395,30 +522,35 @@ static irqreturn_t adm5120_poll_irq(int irq, void *dev_id)
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struct net_device *dev = dev_id;
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u32 status;
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status = sw_read_reg(SWITCH_REG_INT_STATUS);
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status &= ~(sw_read_reg(SWITCH_REG_INT_MASK));
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status = sw_int_status();
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status &= SWITCH_INTS_POLL;
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if (!status)
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return IRQ_NONE;
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sw_int_disable(SWITCH_INTS_POLL);
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netif_rx_schedule(dev);
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sw_dump_intr_mask("poll ints", status);
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if (!netif_running(dev)) {
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SW_DBG("device %s is not running\n", dev->name);
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return IRQ_NONE;
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}
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spin_lock(&poll_lock);
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if (!poll_dev) {
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SW_DBG("enable polling mode for %s\n", dev->name);
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poll_dev = dev;
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sw_int_mask(SWITCH_INTS_POLL);
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netif_rx_schedule(poll_dev);
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}
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spin_unlock(&poll_lock);
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SW_DBG("%s handling IRQ%d\n", dev->name, irq);
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return IRQ_HANDLED;
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}
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static irqreturn_t adm5120_switch_irq(int irq, void *dev_id)
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{
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irqreturn_t ret;
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u32 status;
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status = sw_read_reg(SWITCH_REG_INT_STATUS);
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status &= ~(sw_read_reg(SWITCH_REG_INT_MASK));
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sw_dump_intr_mask("sw irq", status);
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status = sw_int_status();
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status &= SWITCH_INTS_ALL & ~SWITCH_INTS_POLL;
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if (!status)
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return IRQ_NONE;
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@ -481,7 +613,7 @@ static int adm5120_switch_open(struct net_device *dev)
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netif_start_queue(dev);
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if (!sw_used++)
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/* enable interrupts on first open */
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sw_int_enable(SWITCH_INTS_USED);
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sw_int_unmask(SWITCH_INTS_USED);
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/* enable (additional) port */
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t = sw_read_reg(SWITCH_REG_PORT_CONF0);
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@ -500,7 +632,7 @@ static int adm5120_switch_stop(struct net_device *dev)
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int i;
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if (!--sw_used)
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sw_int_disable(SWITCH_INTS_USED);
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sw_int_mask(SWITCH_INTS_USED);
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/* disable port if not assigned to other devices */
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t = sw_read_reg(SWITCH_REG_PORT_CONF0);
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@ -522,6 +654,9 @@ static int adm5120_sw_start_xmit(struct sk_buff *skb, struct net_device *dev)
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|||
unsigned int entry;
|
||||
unsigned long data;
|
||||
|
||||
/* lock switch irq */
|
||||
spin_lock_irq(&sw_lock);
|
||||
|
||||
/* calculate the next TX descriptor entry. */
|
||||
entry = cur_txl % TX_RING_SIZE;
|
||||
|
||||
|
|
@ -544,9 +679,6 @@ static int adm5120_sw_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|||
|
||||
desc->buflen = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
|
||||
|
||||
/* lock switch irq */
|
||||
spin_lock_irq(&sw_lock);
|
||||
|
||||
desc->buf1 = data | DESC_OWN;
|
||||
sw_write_reg(SWITCH_REG_SEND_TRIG, SEND_TRIG_STL);
|
||||
|
||||
|
|
@ -720,7 +852,50 @@ static void adm5120_dma_rx_init(struct dma_desc *desc, struct sk_buff **skbl,
|
|||
}
|
||||
}
|
||||
|
||||
static int __init adm5120_sw_init(void)
|
||||
static void adm5120_switch_cleanup(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
/* disable interrupts */
|
||||
sw_int_mask(SWITCH_INTS_ALL);
|
||||
|
||||
for (i = 0; i < SWITCH_NUM_PORTS; i++) {
|
||||
struct net_device *dev = adm5120_devs[i];
|
||||
if (dev) {
|
||||
unregister_netdev(dev);
|
||||
free_irq(ADM5120_IRQ_SWITCH, dev);
|
||||
free_netdev(dev);
|
||||
}
|
||||
}
|
||||
|
||||
/* cleanup TX ring */
|
||||
if (txl_skbuff) {
|
||||
for (i = 0; i < TX_RING_SIZE; i++)
|
||||
if (txl_skbuff[i])
|
||||
kfree_skb(txl_skbuff[i]);
|
||||
kfree(txl_skbuff);
|
||||
}
|
||||
|
||||
if (txl_descs)
|
||||
dma_free_coherent(NULL, TX_DESCS_SIZE, txl_descs,
|
||||
txl_descs_dma);
|
||||
|
||||
/* cleanup RX ring */
|
||||
if (rxl_skbuff) {
|
||||
for (i = 0; i < RX_RING_SIZE; i++)
|
||||
if (rxl_skbuff[i])
|
||||
kfree_skb(rxl_skbuff[i]);
|
||||
kfree(rxl_skbuff);
|
||||
}
|
||||
|
||||
if (rxl_descs)
|
||||
dma_free_coherent(NULL, RX_DESCS_SIZE, rxl_descs,
|
||||
rxl_descs_dma);
|
||||
|
||||
free_irq(ADM5120_IRQ_SWITCH, &sw_dev);
|
||||
}
|
||||
|
||||
static int __init adm5120_switch_init(void)
|
||||
{
|
||||
struct net_device *dev;
|
||||
u32 t;
|
||||
|
|
@ -728,8 +903,10 @@ static int __init adm5120_sw_init(void)
|
|||
|
||||
err = request_irq(ADM5120_IRQ_SWITCH, adm5120_switch_irq,
|
||||
(IRQF_SHARED | IRQF_DISABLED), "switch", &sw_dev);
|
||||
if (err)
|
||||
goto out;
|
||||
if (err) {
|
||||
SW_ERR("request_irq failed with error %d\n", err);
|
||||
goto err;
|
||||
}
|
||||
|
||||
adm5120_nrdevs = adm5120_eth_num_ports;
|
||||
|
||||
|
|
@ -759,31 +936,63 @@ static int __init adm5120_sw_init(void)
|
|||
/* Force all the packets from all ports are low priority */
|
||||
sw_write_reg(SWITCH_REG_PRI_CNTL, 0);
|
||||
|
||||
sw_int_disable(SWITCH_INTS_ALL);
|
||||
sw_int_mask(SWITCH_INTS_ALL);
|
||||
sw_int_ack(SWITCH_INTS_ALL);
|
||||
|
||||
cur_txl = dirty_txl = 0;
|
||||
/* init RX ring */
|
||||
cur_rxl = dirty_rxl = 0;
|
||||
rxl_descs = dma_alloc_coherent(NULL, RX_DESCS_SIZE, &rxl_descs_dma,
|
||||
GFP_ATOMIC);
|
||||
if (!rxl_descs) {
|
||||
err = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
txh_descs = (void *)KSEG1ADDR((u32)txh_descs_v);
|
||||
txl_descs = (void *)KSEG1ADDR((u32)txl_descs_v);
|
||||
rxh_descs = (void *)KSEG1ADDR((u32)rxh_descs_v);
|
||||
rxl_descs = (void *)KSEG1ADDR((u32)rxl_descs_v);
|
||||
rxl_skbuff = kzalloc(RX_SKBS_SIZE, GFP_KERNEL);
|
||||
if (!rxl_skbuff) {
|
||||
err = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
for (i = 0; i < RX_RING_SIZE; i++) {
|
||||
struct sk_buff *skb;
|
||||
skb = alloc_skb(SKB_ALLOC_LEN, GFP_ATOMIC);
|
||||
if (!skb) {
|
||||
err = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
rxl_skbuff[i] = skb;
|
||||
skb_reserve(skb, SKB_RESERVE_LEN);
|
||||
}
|
||||
|
||||
/* init TX ring */
|
||||
cur_txl = dirty_txl = 0;
|
||||
txl_descs = dma_alloc_coherent(NULL, TX_DESCS_SIZE, &txl_descs_dma,
|
||||
GFP_ATOMIC);
|
||||
if (!txl_descs) {
|
||||
err = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
txl_skbuff = kzalloc(TX_SKBS_SIZE, GFP_KERNEL);
|
||||
if (!txl_skbuff) {
|
||||
err = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
adm5120_dma_tx_init(txh_descs, txh_skbuff, TX_RING_SIZE);
|
||||
adm5120_dma_tx_init(txl_descs, txl_skbuff, TX_RING_SIZE);
|
||||
adm5120_dma_rx_init(rxh_descs, rxh_skbuff, RX_RING_SIZE);
|
||||
adm5120_dma_rx_init(rxl_descs, rxl_skbuff, RX_RING_SIZE);
|
||||
sw_write_reg(SWITCH_REG_SHDA, KSEG1ADDR(txh_descs));
|
||||
|
||||
sw_write_reg(SWITCH_REG_SHDA, 0);
|
||||
sw_write_reg(SWITCH_REG_SLDA, KSEG1ADDR(txl_descs));
|
||||
sw_write_reg(SWITCH_REG_RHDA, KSEG1ADDR(rxh_descs));
|
||||
sw_write_reg(SWITCH_REG_RHDA, 0);
|
||||
sw_write_reg(SWITCH_REG_RLDA, KSEG1ADDR(rxl_descs));
|
||||
|
||||
for (i = 0; i < SWITCH_NUM_PORTS; i++) {
|
||||
adm5120_devs[i] = alloc_etherdev(sizeof(struct adm5120_sw));
|
||||
if (!adm5120_devs[i]) {
|
||||
err = -ENOMEM;
|
||||
goto out_int;
|
||||
goto err;
|
||||
}
|
||||
|
||||
dev = adm5120_devs[i];
|
||||
|
|
@ -791,7 +1000,7 @@ static int __init adm5120_sw_init(void)
|
|||
(IRQF_SHARED | IRQF_DISABLED), dev->name, dev);
|
||||
if (err) {
|
||||
SW_ERR("unable to get irq for %s\n", dev->name);
|
||||
goto out_int;
|
||||
goto err;
|
||||
}
|
||||
|
||||
SET_MODULE_OWNER(dev);
|
||||
|
|
@ -807,19 +1016,21 @@ static int __init adm5120_sw_init(void)
|
|||
dev->tx_timeout = adm5120_tx_timeout;
|
||||
dev->watchdog_timeo = TX_TIMEOUT;
|
||||
dev->set_mac_address = adm5120_sw_set_mac_address;
|
||||
dev->poll = adm5120_switch_rx;
|
||||
dev->poll = adm5120_switch_poll;
|
||||
dev->weight = 64;
|
||||
|
||||
memcpy(dev->dev_addr, adm5120_eth_macs[i], 6);
|
||||
adm5120_write_mac(dev);
|
||||
|
||||
if ((err = register_netdev(dev))) {
|
||||
free_irq(ADM5120_IRQ_SWITCH, dev);
|
||||
free_netdev(dev);
|
||||
goto out_int;
|
||||
err = register_netdev(dev);
|
||||
if (err) {
|
||||
SW_INFO("%s register failed, error=%d\n",
|
||||
dev->name, err);
|
||||
goto err;
|
||||
}
|
||||
SW_INFO("%s created for switch port%d\n", dev->name, i);
|
||||
}
|
||||
|
||||
/* setup vlan/port mapping after devs are filled up */
|
||||
adm5120_set_vlan(adm5120_eth_vlans);
|
||||
|
||||
|
|
@ -830,43 +1041,17 @@ static int __init adm5120_sw_init(void)
|
|||
|
||||
return 0;
|
||||
|
||||
out_int:
|
||||
/* Undo everything that did succeed */
|
||||
for (; i; i--) {
|
||||
unregister_netdev(adm5120_devs[i-1]);
|
||||
free_netdev(adm5120_devs[i-1]);
|
||||
}
|
||||
free_irq(ADM5120_IRQ_SWITCH, NULL);
|
||||
out:
|
||||
err:
|
||||
adm5120_switch_cleanup();
|
||||
|
||||
SW_ERR("init failed\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
static void __exit adm5120_sw_exit(void)
|
||||
static void __exit adm5120_switch_exit(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < SWITCH_NUM_PORTS; i++) {
|
||||
struct net_device *dev = adm5120_devs[i];
|
||||
unregister_netdev(dev);
|
||||
free_irq(ADM5120_IRQ_SWITCH, dev);
|
||||
free_netdev(dev);
|
||||
}
|
||||
|
||||
free_irq(ADM5120_IRQ_SWITCH, &sw_dev);
|
||||
|
||||
for (i = 0; i < RX_RING_SIZE; i++) {
|
||||
if (!rxh_skbuff[i])
|
||||
break;
|
||||
kfree_skb(rxh_skbuff[i]);
|
||||
}
|
||||
|
||||
for (i = 0; i < RX_RING_SIZE; i++) {
|
||||
if (!rxl_skbuff[i])
|
||||
break;
|
||||
kfree_skb(rxl_skbuff[i]);
|
||||
}
|
||||
adm5120_switch_cleanup();
|
||||
}
|
||||
|
||||
module_init(adm5120_sw_init);
|
||||
module_exit(adm5120_sw_exit);
|
||||
module_init(adm5120_switch_init);
|
||||
module_exit(adm5120_switch_exit);
|
||||
|
|
|
|||
Loading…
Reference in a new issue