diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/freescale/ucc_geth.c | 453 |
1 files changed, 257 insertions, 196 deletions
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c index ec0905461312..4e3cd2f8debb 100644 --- a/drivers/net/ethernet/freescale/ucc_geth.c +++ b/drivers/net/ethernet/freescale/ucc_geth.c @@ -1856,11 +1856,93 @@ static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *uge return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */ } -static void ucc_geth_memclean(struct ucc_geth_private *ugeth) +static void ucc_geth_free_rx(struct ucc_geth_private *ugeth) +{ + struct ucc_geth_info *ug_info; + struct ucc_fast_info *uf_info; + u16 i, j; + u8 __iomem *bd; + + + ug_info = ugeth->ug_info; + uf_info = &ug_info->uf_info; + + for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) { + if (ugeth->p_rx_bd_ring[i]) { + /* Return existing data buffers in ring */ + bd = ugeth->p_rx_bd_ring[i]; + for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) { + if (ugeth->rx_skbuff[i][j]) { + dma_unmap_single(ugeth->dev, + in_be32(&((struct qe_bd __iomem *)bd)->buf), + ugeth->ug_info-> + uf_info.max_rx_buf_length + + UCC_GETH_RX_DATA_BUF_ALIGNMENT, + DMA_FROM_DEVICE); + dev_kfree_skb_any( + ugeth->rx_skbuff[i][j]); + ugeth->rx_skbuff[i][j] = NULL; + } + bd += sizeof(struct qe_bd); + } + + kfree(ugeth->rx_skbuff[i]); + + if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_SYSTEM) + kfree((void *)ugeth->rx_bd_ring_offset[i]); + else if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_MURAM) + qe_muram_free(ugeth->rx_bd_ring_offset[i]); + ugeth->p_rx_bd_ring[i] = NULL; + } + } + +} + +static void ucc_geth_free_tx(struct ucc_geth_private *ugeth) { + struct ucc_geth_info *ug_info; + struct ucc_fast_info *uf_info; u16 i, j; u8 __iomem *bd; + ug_info = ugeth->ug_info; + uf_info = &ug_info->uf_info; + + for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) { + bd = ugeth->p_tx_bd_ring[i]; + if (!bd) + continue; + for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) { + if (ugeth->tx_skbuff[i][j]) { + dma_unmap_single(ugeth->dev, + in_be32(&((struct qe_bd __iomem *)bd)->buf), + (in_be32((u32 __iomem *)bd) & + BD_LENGTH_MASK), + DMA_TO_DEVICE); + dev_kfree_skb_any(ugeth->tx_skbuff[i][j]); + ugeth->tx_skbuff[i][j] = NULL; + } + } + + kfree(ugeth->tx_skbuff[i]); + + if (ugeth->p_tx_bd_ring[i]) { + if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_SYSTEM) + kfree((void *)ugeth->tx_bd_ring_offset[i]); + else if (ugeth->ug_info->uf_info.bd_mem_part == + MEM_PART_MURAM) + qe_muram_free(ugeth->tx_bd_ring_offset[i]); + ugeth->p_tx_bd_ring[i] = NULL; + } + } + +} + +static void ucc_geth_memclean(struct ucc_geth_private *ugeth) +{ if (!ugeth) return; @@ -1927,64 +2009,8 @@ static void ucc_geth_memclean(struct ucc_geth_private *ugeth) kfree(ugeth->p_init_enet_param_shadow); ugeth->p_init_enet_param_shadow = NULL; } - for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) { - bd = ugeth->p_tx_bd_ring[i]; - if (!bd) - continue; - for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) { - if (ugeth->tx_skbuff[i][j]) { - dma_unmap_single(ugeth->dev, - in_be32(&((struct qe_bd __iomem *)bd)->buf), - (in_be32((u32 __iomem *)bd) & - BD_LENGTH_MASK), - DMA_TO_DEVICE); - dev_kfree_skb_any(ugeth->tx_skbuff[i][j]); - ugeth->tx_skbuff[i][j] = NULL; - } - } - - kfree(ugeth->tx_skbuff[i]); - - if (ugeth->p_tx_bd_ring[i]) { - if (ugeth->ug_info->uf_info.bd_mem_part == - MEM_PART_SYSTEM) - kfree((void *)ugeth->tx_bd_ring_offset[i]); - else if (ugeth->ug_info->uf_info.bd_mem_part == - MEM_PART_MURAM) - qe_muram_free(ugeth->tx_bd_ring_offset[i]); - ugeth->p_tx_bd_ring[i] = NULL; - } - } - for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) { - if (ugeth->p_rx_bd_ring[i]) { - /* Return existing data buffers in ring */ - bd = ugeth->p_rx_bd_ring[i]; - for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) { - if (ugeth->rx_skbuff[i][j]) { - dma_unmap_single(ugeth->dev, - in_be32(&((struct qe_bd __iomem *)bd)->buf), - ugeth->ug_info-> - uf_info.max_rx_buf_length + - UCC_GETH_RX_DATA_BUF_ALIGNMENT, - DMA_FROM_DEVICE); - dev_kfree_skb_any( - ugeth->rx_skbuff[i][j]); - ugeth->rx_skbuff[i][j] = NULL; - } - bd += sizeof(struct qe_bd); - } - - kfree(ugeth->rx_skbuff[i]); - - if (ugeth->ug_info->uf_info.bd_mem_part == - MEM_PART_SYSTEM) - kfree((void *)ugeth->rx_bd_ring_offset[i]); - else if (ugeth->ug_info->uf_info.bd_mem_part == - MEM_PART_MURAM) - qe_muram_free(ugeth->rx_bd_ring_offset[i]); - ugeth->p_rx_bd_ring[i] = NULL; - } - } + ucc_geth_free_tx(ugeth); + ucc_geth_free_rx(ugeth); while (!list_empty(&ugeth->group_hash_q)) put_enet_addr_container(ENET_ADDR_CONT_ENTRY (dequeue(&ugeth->group_hash_q))); @@ -2210,6 +2236,171 @@ static int ucc_struct_init(struct ucc_geth_private *ugeth) return 0; } +static int ucc_geth_alloc_tx(struct ucc_geth_private *ugeth) +{ + struct ucc_geth_info *ug_info; + struct ucc_fast_info *uf_info; + int length; + u16 i, j; + u8 __iomem *bd; + + ug_info = ugeth->ug_info; + uf_info = &ug_info->uf_info; + + /* Allocate Tx bds */ + for (j = 0; j < ug_info->numQueuesTx; j++) { + /* Allocate in multiple of + UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT, + according to spec */ + length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) + / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) + * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; + if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) % + UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) + length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; + if (uf_info->bd_mem_part == MEM_PART_SYSTEM) { + u32 align = 4; + if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4) + align = UCC_GETH_TX_BD_RING_ALIGNMENT; + ugeth->tx_bd_ring_offset[j] = + (u32) kmalloc((u32) (length + align), GFP_KERNEL); + + if (ugeth->tx_bd_ring_offset[j] != 0) + ugeth->p_tx_bd_ring[j] = + (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] + + align) & ~(align - 1)); + } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { + ugeth->tx_bd_ring_offset[j] = + qe_muram_alloc(length, + UCC_GETH_TX_BD_RING_ALIGNMENT); + if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j])) + ugeth->p_tx_bd_ring[j] = + (u8 __iomem *) qe_muram_addr(ugeth-> + tx_bd_ring_offset[j]); + } + if (!ugeth->p_tx_bd_ring[j]) { + if (netif_msg_ifup(ugeth)) + ugeth_err + ("%s: Can not allocate memory for Tx bd rings.", + __func__); + return -ENOMEM; + } + /* Zero unused end of bd ring, according to spec */ + memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] + + ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0, + length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)); + } + + /* Init Tx bds */ + for (j = 0; j < ug_info->numQueuesTx; j++) { + /* Setup the skbuff rings */ + ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) * + ugeth->ug_info->bdRingLenTx[j], + GFP_KERNEL); + + if (ugeth->tx_skbuff[j] == NULL) { + if (netif_msg_ifup(ugeth)) + ugeth_err("%s: Could not allocate tx_skbuff", + __func__); + return -ENOMEM; + } + + for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++) + ugeth->tx_skbuff[j][i] = NULL; + + ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0; + bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j]; + for (i = 0; i < ug_info->bdRingLenTx[j]; i++) { + /* clear bd buffer */ + out_be32(&((struct qe_bd __iomem *)bd)->buf, 0); + /* set bd status and length */ + out_be32((u32 __iomem *)bd, 0); + bd += sizeof(struct qe_bd); + } + bd -= sizeof(struct qe_bd); + /* set bd status and length */ + out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */ + } + + return 0; +} + +static int ucc_geth_alloc_rx(struct ucc_geth_private *ugeth) +{ + struct ucc_geth_info *ug_info; + struct ucc_fast_info *uf_info; + int length; + u16 i, j; + u8 __iomem *bd; + + ug_info = ugeth->ug_info; + uf_info = &ug_info->uf_info; + + /* Allocate Rx bds */ + for (j = 0; j < ug_info->numQueuesRx; j++) { + length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd); + if (uf_info->bd_mem_part == MEM_PART_SYSTEM) { + u32 align = 4; + if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4) + align = UCC_GETH_RX_BD_RING_ALIGNMENT; + ugeth->rx_bd_ring_offset[j] = + (u32) kmalloc((u32) (length + align), GFP_KERNEL); + if (ugeth->rx_bd_ring_offset[j] != 0) + ugeth->p_rx_bd_ring[j] = + (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] + + align) & ~(align - 1)); + } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { + ugeth->rx_bd_ring_offset[j] = + qe_muram_alloc(length, + UCC_GETH_RX_BD_RING_ALIGNMENT); + if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j])) + ugeth->p_rx_bd_ring[j] = + (u8 __iomem *) qe_muram_addr(ugeth-> + rx_bd_ring_offset[j]); + } + if (!ugeth->p_rx_bd_ring[j]) { + if (netif_msg_ifup(ugeth)) + ugeth_err + ("%s: Can not allocate memory for Rx bd rings.", + __func__); + return -ENOMEM; + } + } + + /* Init Rx bds */ + for (j = 0; j < ug_info->numQueuesRx; j++) { + /* Setup the skbuff rings */ + ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) * + ugeth->ug_info->bdRingLenRx[j], + GFP_KERNEL); + + if (ugeth->rx_skbuff[j] == NULL) { + if (netif_msg_ifup(ugeth)) + ugeth_err("%s: Could not allocate rx_skbuff", + __func__); + return -ENOMEM; + } + + for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++) + ugeth->rx_skbuff[j][i] = NULL; + + ugeth->skb_currx[j] = 0; + bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j]; + for (i = 0; i < ug_info->bdRingLenRx[j]; i++) { + /* set bd status and length */ + out_be32((u32 __iomem *)bd, R_I); + /* clear bd buffer */ + out_be32(&((struct qe_bd __iomem *)bd)->buf, 0); + bd += sizeof(struct qe_bd); + } + bd -= sizeof(struct qe_bd); + /* set bd status and length */ + out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */ + } + + return 0; +} + static int ucc_geth_startup(struct ucc_geth_private *ugeth) { struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt; @@ -2222,11 +2413,10 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) int ret_val = -EINVAL; u32 remoder = UCC_GETH_REMODER_INIT; u32 init_enet_pram_offset, cecr_subblock, command; - u32 ifstat, i, j, size, l2qt, l3qt, length; + u32 ifstat, i, j, size, l2qt, l3qt; u16 temoder = UCC_GETH_TEMODER_INIT; u16 test; u8 function_code = 0; - u8 __iomem *bd; u8 __iomem *endOfRing; u8 numThreadsRxNumerical, numThreadsTxNumerical; @@ -2366,142 +2556,13 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE), 0, &uf_regs->upsmr, &ug_regs->uescr); - /* Allocate Tx bds */ - for (j = 0; j < ug_info->numQueuesTx; j++) { - /* Allocate in multiple of - UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT, - according to spec */ - length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) - / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) - * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; - if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) % - UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) - length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; - if (uf_info->bd_mem_part == MEM_PART_SYSTEM) { - u32 align = 4; - if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4) - align = UCC_GETH_TX_BD_RING_ALIGNMENT; - ugeth->tx_bd_ring_offset[j] = - (u32) kmalloc((u32) (length + align), GFP_KERNEL); - - if (ugeth->tx_bd_ring_offset[j] != 0) - ugeth->p_tx_bd_ring[j] = - (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] + - align) & ~(align - 1)); - } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { - ugeth->tx_bd_ring_offset[j] = - qe_muram_alloc(length, - UCC_GETH_TX_BD_RING_ALIGNMENT); - if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j])) - ugeth->p_tx_bd_ring[j] = - (u8 __iomem *) qe_muram_addr(ugeth-> - tx_bd_ring_offset[j]); - } - if (!ugeth->p_tx_bd_ring[j]) { - if (netif_msg_ifup(ugeth)) - ugeth_err - ("%s: Can not allocate memory for Tx bd rings.", - __func__); - return -ENOMEM; - } - /* Zero unused end of bd ring, according to spec */ - memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] + - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0, - length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)); - } - - /* Allocate Rx bds */ - for (j = 0; j < ug_info->numQueuesRx; j++) { - length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd); - if (uf_info->bd_mem_part == MEM_PART_SYSTEM) { - u32 align = 4; - if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4) - align = UCC_GETH_RX_BD_RING_ALIGNMENT; - ugeth->rx_bd_ring_offset[j] = - (u32) kmalloc((u32) (length + align), GFP_KERNEL); - if (ugeth->rx_bd_ring_offset[j] != 0) - ugeth->p_rx_bd_ring[j] = - (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] + - align) & ~(align - 1)); - } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { - ugeth->rx_bd_ring_offset[j] = - qe_muram_alloc(length, - UCC_GETH_RX_BD_RING_ALIGNMENT); - if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j])) - ugeth->p_rx_bd_ring[j] = - (u8 __iomem *) qe_muram_addr(ugeth-> - rx_bd_ring_offset[j]); - } - if (!ugeth->p_rx_bd_ring[j]) { - if (netif_msg_ifup(ugeth)) - ugeth_err - ("%s: Can not allocate memory for Rx bd rings.", - __func__); - return -ENOMEM; - } - } - - /* Init Tx bds */ - for (j = 0; j < ug_info->numQueuesTx; j++) { - /* Setup the skbuff rings */ - ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) * - ugeth->ug_info->bdRingLenTx[j], - GFP_KERNEL); - - if (ugeth->tx_skbuff[j] == NULL) { - if (netif_msg_ifup(ugeth)) - ugeth_err("%s: Could not allocate tx_skbuff", - __func__); - return -ENOMEM; - } - - for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++) - ugeth->tx_skbuff[j][i] = NULL; - - ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0; - bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j]; - for (i = 0; i < ug_info->bdRingLenTx[j]; i++) { - /* clear bd buffer */ - out_be32(&((struct qe_bd __iomem *)bd)->buf, 0); - /* set bd status and length */ - out_be32((u32 __iomem *)bd, 0); - bd += sizeof(struct qe_bd); - } - bd -= sizeof(struct qe_bd); - /* set bd status and length */ - out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */ - } - - /* Init Rx bds */ - for (j = 0; j < ug_info->numQueuesRx; j++) { - /* Setup the skbuff rings */ - ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) * - ugeth->ug_info->bdRingLenRx[j], - GFP_KERNEL); - - if (ugeth->rx_skbuff[j] == NULL) { - if (netif_msg_ifup(ugeth)) - ugeth_err("%s: Could not allocate rx_skbuff", - __func__); - return -ENOMEM; - } - - for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++) - ugeth->rx_skbuff[j][i] = NULL; + ret_val = ucc_geth_alloc_tx(ugeth); + if (ret_val != 0) + return ret_val; - ugeth->skb_currx[j] = 0; - bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j]; - for (i = 0; i < ug_info->bdRingLenRx[j]; i++) { - /* set bd status and length */ - out_be32((u32 __iomem *)bd, R_I); - /* clear bd buffer */ - out_be32(&((struct qe_bd __iomem *)bd)->buf, 0); - bd += sizeof(struct qe_bd); - } - bd -= sizeof(struct qe_bd); - /* set bd status and length */ - out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */ - } + ret_val = ucc_geth_alloc_rx(ugeth); + if (ret_val != 0) + return ret_val; /* * Global PRAM |