diff options
Diffstat (limited to 'drivers/net/ps3_gelic_net.c')
| -rw-r--r-- | drivers/net/ps3_gelic_net.c | 1896 |
1 files changed, 0 insertions, 1896 deletions
diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c deleted file mode 100644 index d82a82d9870c..000000000000 --- a/drivers/net/ps3_gelic_net.c +++ /dev/null @@ -1,1896 +0,0 @@ -/* - * PS3 gelic network driver. - * - * Copyright (C) 2007 Sony Computer Entertainment Inc. - * Copyright 2006, 2007 Sony Corporation - * - * This file is based on: spider_net.c - * - * (C) Copyright IBM Corp. 2005 - * - * Authors : Utz Bacher <utz.bacher@de.ibm.com> - * Jens Osterkamp <Jens.Osterkamp@de.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#undef DEBUG - -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> - -#include <linux/etherdevice.h> -#include <linux/ethtool.h> -#include <linux/if_vlan.h> - -#include <linux/in.h> -#include <linux/ip.h> -#include <linux/tcp.h> - -#include <linux/dma-mapping.h> -#include <net/checksum.h> -#include <asm/firmware.h> -#include <asm/ps3.h> -#include <asm/lv1call.h> - -#include "ps3_gelic_net.h" -#include "ps3_gelic_wireless.h" - -#define DRV_NAME "Gelic Network Driver" -#define DRV_VERSION "2.0" - -MODULE_AUTHOR("SCE Inc."); -MODULE_DESCRIPTION("Gelic Network driver"); -MODULE_LICENSE("GPL"); - - -static inline void gelic_card_enable_rxdmac(struct gelic_card *card); -static inline void gelic_card_disable_rxdmac(struct gelic_card *card); -static inline void gelic_card_disable_txdmac(struct gelic_card *card); -static inline void gelic_card_reset_chain(struct gelic_card *card, - struct gelic_descr_chain *chain, - struct gelic_descr *start_descr); - -/* set irq_mask */ -int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask) -{ - int status; - - status = lv1_net_set_interrupt_mask(bus_id(card), dev_id(card), - mask, 0); - if (status) - dev_info(ctodev(card), - "%s failed %d\n", __func__, status); - return status; -} - -static inline void gelic_card_rx_irq_on(struct gelic_card *card) -{ - card->irq_mask |= GELIC_CARD_RXINT; - gelic_card_set_irq_mask(card, card->irq_mask); -} -static inline void gelic_card_rx_irq_off(struct gelic_card *card) -{ - card->irq_mask &= ~GELIC_CARD_RXINT; - gelic_card_set_irq_mask(card, card->irq_mask); -} - -static void gelic_card_get_ether_port_status(struct gelic_card *card, - int inform) -{ - u64 v2; - struct net_device *ether_netdev; - - lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_GET_ETH_PORT_STATUS, - GELIC_LV1_VLAN_TX_ETHERNET_0, 0, 0, - &card->ether_port_status, &v2); - - if (inform) { - ether_netdev = card->netdev[GELIC_PORT_ETHERNET_0]; - if (card->ether_port_status & GELIC_LV1_ETHER_LINK_UP) - netif_carrier_on(ether_netdev); - else - netif_carrier_off(ether_netdev); - } -} - -static int gelic_card_set_link_mode(struct gelic_card *card, int mode) -{ - int status; - u64 v1, v2; - - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_SET_NEGOTIATION_MODE, - GELIC_LV1_PHY_ETHERNET_0, mode, 0, &v1, &v2); - if (status) { - pr_info("%s: failed setting negotiation mode %d\n", __func__, - status); - return -EBUSY; - } - - card->link_mode = mode; - return 0; -} - -void gelic_card_up(struct gelic_card *card) -{ - pr_debug("%s: called\n", __func__); - mutex_lock(&card->updown_lock); - if (atomic_inc_return(&card->users) == 1) { - pr_debug("%s: real do\n", __func__); - /* enable irq */ - gelic_card_set_irq_mask(card, card->irq_mask); - /* start rx */ - gelic_card_enable_rxdmac(card); - - napi_enable(&card->napi); - } - mutex_unlock(&card->updown_lock); - pr_debug("%s: done\n", __func__); -} - -void gelic_card_down(struct gelic_card *card) -{ - u64 mask; - pr_debug("%s: called\n", __func__); - mutex_lock(&card->updown_lock); - if (atomic_dec_if_positive(&card->users) == 0) { - pr_debug("%s: real do\n", __func__); - napi_disable(&card->napi); - /* - * Disable irq. Wireless interrupts will - * be disabled later if any - */ - mask = card->irq_mask & (GELIC_CARD_WLAN_EVENT_RECEIVED | - GELIC_CARD_WLAN_COMMAND_COMPLETED); - gelic_card_set_irq_mask(card, mask); - /* stop rx */ - gelic_card_disable_rxdmac(card); - gelic_card_reset_chain(card, &card->rx_chain, - card->descr + GELIC_NET_TX_DESCRIPTORS); - /* stop tx */ - gelic_card_disable_txdmac(card); - } - mutex_unlock(&card->updown_lock); - pr_debug("%s: done\n", __func__); -} - -/** - * gelic_descr_get_status -- returns the status of a descriptor - * @descr: descriptor to look at - * - * returns the status as in the dmac_cmd_status field of the descriptor - */ -static enum gelic_descr_dma_status -gelic_descr_get_status(struct gelic_descr *descr) -{ - return be32_to_cpu(descr->dmac_cmd_status) & GELIC_DESCR_DMA_STAT_MASK; -} - -/** - * gelic_descr_set_status -- sets the status of a descriptor - * @descr: descriptor to change - * @status: status to set in the descriptor - * - * changes the status to the specified value. Doesn't change other bits - * in the status - */ -static void gelic_descr_set_status(struct gelic_descr *descr, - enum gelic_descr_dma_status status) -{ - descr->dmac_cmd_status = cpu_to_be32(status | - (be32_to_cpu(descr->dmac_cmd_status) & - ~GELIC_DESCR_DMA_STAT_MASK)); - /* - * dma_cmd_status field is used to indicate whether the descriptor - * is valid or not. - * Usually caller of this function wants to inform that to the - * hardware, so we assure here the hardware sees the change. - */ - wmb(); -} - -/** - * gelic_card_free_chain - free descriptor chain - * @card: card structure - * @descr_in: address of desc - */ -static void gelic_card_free_chain(struct gelic_card *card, - struct gelic_descr *descr_in) -{ - struct gelic_descr *descr; - - for (descr = descr_in; descr && descr->bus_addr; descr = descr->next) { - dma_unmap_single(ctodev(card), descr->bus_addr, - GELIC_DESCR_SIZE, DMA_BIDIRECTIONAL); - descr->bus_addr = 0; - } -} - -/** - * gelic_card_init_chain - links descriptor chain - * @card: card structure - * @chain: address of chain - * @start_descr: address of descriptor array - * @no: number of descriptors - * - * we manage a circular list that mirrors the hardware structure, - * except that the hardware uses bus addresses. - * - * returns 0 on success, <0 on failure - */ -static int __devinit gelic_card_init_chain(struct gelic_card *card, - struct gelic_descr_chain *chain, - struct gelic_descr *start_descr, - int no) -{ - int i; - struct gelic_descr *descr; - - descr = start_descr; - memset(descr, 0, sizeof(*descr) * no); - - /* set up the hardware pointers in each descriptor */ - for (i = 0; i < no; i++, descr++) { - gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); - descr->bus_addr = - dma_map_single(ctodev(card), descr, - GELIC_DESCR_SIZE, - DMA_BIDIRECTIONAL); - - if (!descr->bus_addr) - goto iommu_error; - - descr->next = descr + 1; - descr->prev = descr - 1; - } - /* make them as ring */ - (descr - 1)->next = start_descr; - start_descr->prev = (descr - 1); - - /* chain bus addr of hw descriptor */ - descr = start_descr; - for (i = 0; i < no; i++, descr++) { - descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr); - } - - chain->head = start_descr; - chain->tail = start_descr; - - /* do not chain last hw descriptor */ - (descr - 1)->next_descr_addr = 0; - - return 0; - -iommu_error: - for (i--, descr--; 0 <= i; i--, descr--) - if (descr->bus_addr) - dma_unmap_single(ctodev(card), descr->bus_addr, - GELIC_DESCR_SIZE, - DMA_BIDIRECTIONAL); - return -ENOMEM; -} - -/** - * gelic_card_reset_chain - reset status of a descriptor chain - * @card: card structure - * @chain: address of chain - * @start_descr: address of descriptor array - * - * Reset the status of dma descriptors to ready state - * and re-initialize the hardware chain for later use - */ -static void gelic_card_reset_chain(struct gelic_card *card, - struct gelic_descr_chain *chain, - struct gelic_descr *start_descr) -{ - struct gelic_descr *descr; - - for (descr = start_descr; start_descr != descr->next; descr++) { - gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED); - descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr); - } - - chain->head = start_descr; - chain->tail = (descr - 1); - - (descr - 1)->next_descr_addr = 0; -} -/** - * gelic_descr_prepare_rx - reinitializes a rx descriptor - * @card: card structure - * @descr: descriptor to re-init - * - * return 0 on success, <0 on failure - * - * allocates a new rx skb, iommu-maps it and attaches it to the descriptor. - * Activate the descriptor state-wise - */ -static int gelic_descr_prepare_rx(struct gelic_card *card, - struct gelic_descr *descr) -{ - int offset; - unsigned int bufsize; - - if (gelic_descr_get_status(descr) != GELIC_DESCR_DMA_NOT_IN_USE) - dev_info(ctodev(card), "%s: ERROR status\n", __func__); - /* we need to round up the buffer size to a multiple of 128 */ - bufsize = ALIGN(GELIC_NET_MAX_MTU, GELIC_NET_RXBUF_ALIGN); - - /* and we need to have it 128 byte aligned, therefore we allocate a - * bit more */ - descr->skb = dev_alloc_skb(bufsize + GELIC_NET_RXBUF_ALIGN - 1); - if (!descr->skb) { - descr->buf_addr = 0; /* tell DMAC don't touch memory */ - dev_info(ctodev(card), - "%s:allocate skb failed !!\n", __func__); - return -ENOMEM; - } - descr->buf_size = cpu_to_be32(bufsize); - descr->dmac_cmd_status = 0; - descr->result_size = 0; - descr->valid_size = 0; - descr->data_error = 0; - - offset = ((unsigned long)descr->skb->data) & - (GELIC_NET_RXBUF_ALIGN - 1); - if (offset) - skb_reserve(descr->skb, GELIC_NET_RXBUF_ALIGN - offset); - /* io-mmu-map the skb */ - descr->buf_addr = cpu_to_be32(dma_map_single(ctodev(card), - descr->skb->data, - GELIC_NET_MAX_MTU, - DMA_FROM_DEVICE)); - if (!descr->buf_addr) { - dev_kfree_skb_any(descr->skb); - descr->skb = NULL; - dev_info(ctodev(card), - "%s:Could not iommu-map rx buffer\n", __func__); - gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); - return -ENOMEM; - } else { - gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED); - return 0; - } -} - -/** - * gelic_card_release_rx_chain - free all skb of rx descr - * @card: card structure - * - */ -static void gelic_card_release_rx_chain(struct gelic_card *card) -{ - struct gelic_descr *descr = card->rx_chain.head; - - do { - if (descr->skb) { - dma_unmap_single(ctodev(card), - be32_to_cpu(descr->buf_addr), - descr->skb->len, - DMA_FROM_DEVICE); - descr->buf_addr = 0; - dev_kfree_skb_any(descr->skb); - descr->skb = NULL; - gelic_descr_set_status(descr, - GELIC_DESCR_DMA_NOT_IN_USE); - } - descr = descr->next; - } while (descr != card->rx_chain.head); -} - -/** - * gelic_card_fill_rx_chain - fills descriptors/skbs in the rx chains - * @card: card structure - * - * fills all descriptors in the rx chain: allocates skbs - * and iommu-maps them. - * returns 0 on success, < 0 on failure - */ -static int gelic_card_fill_rx_chain(struct gelic_card *card) -{ - struct gelic_descr *descr = card->rx_chain.head; - int ret; - - do { - if (!descr->skb) { - ret = gelic_descr_prepare_rx(card, descr); - if (ret) - goto rewind; - } - descr = descr->next; - } while (descr != card->rx_chain.head); - - return 0; -rewind: - gelic_card_release_rx_chain(card); - return ret; -} - -/** - * gelic_card_alloc_rx_skbs - allocates rx skbs in rx descriptor chains - * @card: card structure - * - * returns 0 on success, < 0 on failure - */ -static int __devinit gelic_card_alloc_rx_skbs(struct gelic_card *card) -{ - struct gelic_descr_chain *chain; - int ret; - chain = &card->rx_chain; - ret = gelic_card_fill_rx_chain(card); - chain->tail = card->rx_top->prev; /* point to the last */ - return ret; -} - -/** - * gelic_descr_release_tx - processes a used tx descriptor - * @card: card structure - * @descr: descriptor to release - * - * releases a used tx descriptor (unmapping, freeing of skb) - */ -static void gelic_descr_release_tx(struct gelic_card *card, - struct gelic_descr *descr) -{ - struct sk_buff *skb = descr->skb; - - BUG_ON(!(be32_to_cpu(descr->data_status) & GELIC_DESCR_TX_TAIL)); - - dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr), skb->len, - DMA_TO_DEVICE); - dev_kfree_skb_any(skb); - - descr->buf_addr = 0; - descr->buf_size = 0; - descr->next_descr_addr = 0; - descr->result_size = 0; - descr->valid_size = 0; - descr->data_status = 0; - descr->data_error = 0; - descr->skb = NULL; - - /* set descr status */ - gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); -} - -static void gelic_card_stop_queues(struct gelic_card *card) -{ - netif_stop_queue(card->netdev[GELIC_PORT_ETHERNET_0]); - - if (card->netdev[GELIC_PORT_WIRELESS]) - netif_stop_queue(card->netdev[GELIC_PORT_WIRELESS]); -} -static void gelic_card_wake_queues(struct gelic_card *card) -{ - netif_wake_queue(card->netdev[GELIC_PORT_ETHERNET_0]); - - if (card->netdev[GELIC_PORT_WIRELESS]) - netif_wake_queue(card->netdev[GELIC_PORT_WIRELESS]); -} -/** - * gelic_card_release_tx_chain - processes sent tx descriptors - * @card: adapter structure - * @stop: net_stop sequence - * - * releases the tx descriptors that gelic has finished with - */ -static void gelic_card_release_tx_chain(struct gelic_card *card, int stop) -{ - struct gelic_descr_chain *tx_chain; - enum gelic_descr_dma_status status; - struct net_device *netdev; - int release = 0; - - for (tx_chain = &card->tx_chain; - tx_chain->head != tx_chain->tail && tx_chain->tail; - tx_chain->tail = tx_chain->tail->next) { - status = gelic_descr_get_status(tx_chain->tail); - netdev = tx_chain->tail->skb->dev; - switch (status) { - case GELIC_DESCR_DMA_RESPONSE_ERROR: - case GELIC_DESCR_DMA_PROTECTION_ERROR: - case GELIC_DESCR_DMA_FORCE_END: - if (printk_ratelimit()) - dev_info(ctodev(card), - "%s: forcing end of tx descriptor " \ - "with status %x\n", - __func__, status); - netdev->stats.tx_dropped++; - break; - - case GELIC_DESCR_DMA_COMPLETE: - if (tx_chain->tail->skb) { - netdev->stats.tx_packets++; - netdev->stats.tx_bytes += - tx_chain->tail->skb->len; - } - break; - - case GELIC_DESCR_DMA_CARDOWNED: - /* pending tx request */ - default: - /* any other value (== GELIC_DESCR_DMA_NOT_IN_USE) */ - if (!stop) - goto out; - } - gelic_descr_release_tx(card, tx_chain->tail); - release ++; - } -out: - if (!stop && release) - gelic_card_wake_queues(card); -} - -/** - * gelic_net_set_multi - sets multicast addresses and promisc flags - * @netdev: interface device structure - * - * gelic_net_set_multi configures multicast addresses as needed for the - * netdev interface. It also sets up multicast, allmulti and promisc - * flags appropriately - */ -void gelic_net_set_multi(struct net_device *netdev) -{ - struct gelic_card *card = netdev_card(netdev); - struct netdev_hw_addr *ha; - unsigned int i; - uint8_t *p; - u64 addr; - int status; - - /* clear all multicast address */ - status = lv1_net_remove_multicast_address(bus_id(card), dev_id(card), - 0, 1); - if (status) - dev_err(ctodev(card), - "lv1_net_remove_multicast_address failed %d\n", - status); - /* set broadcast address */ - status = lv1_net_add_multicast_address(bus_id(card), dev_id(card), - GELIC_NET_BROADCAST_ADDR, 0); - if (status) - dev_err(ctodev(card), - "lv1_net_add_multicast_address failed, %d\n", - status); - - if ((netdev->flags & IFF_ALLMULTI) || - (netdev_mc_count(netdev) > GELIC_NET_MC_COUNT_MAX)) { - status = lv1_net_add_multicast_address(bus_id(card), - dev_id(card), - 0, 1); - if (status) - dev_err(ctodev(card), - "lv1_net_add_multicast_address failed, %d\n", - status); - return; - } - - /* set multicast addresses */ - netdev_for_each_mc_addr(ha, netdev) { - addr = 0; - p = ha->addr; - for (i = 0; i < ETH_ALEN; i++) { - addr <<= 8; - addr |= *p++; - } - status = lv1_net_add_multicast_address(bus_id(card), - dev_id(card), - addr, 0); - if (status) - dev_err(ctodev(card), - "lv1_net_add_multicast_address failed, %d\n", - status); - } -} - -/** - * gelic_card_enable_rxdmac - enables the receive DMA controller - * @card: card structure - * - * gelic_card_enable_rxdmac enables the DMA controller by setting RX_DMA_EN - * in the GDADMACCNTR register - */ -static inline void gelic_card_enable_rxdmac(struct gelic_card *card) -{ - int status; - -#ifdef DEBUG - if (gelic_descr_get_status(card->rx_chain.head) != - GELIC_DESCR_DMA_CARDOWNED) { - printk(KERN_ERR "%s: status=%x\n", __func__, - be32_to_cpu(card->rx_chain.head->dmac_cmd_status)); - printk(KERN_ERR "%s: nextphy=%x\n", __func__, - be32_to_cpu(card->rx_chain.head->next_descr_addr)); - printk(KERN_ERR "%s: head=%p\n", __func__, - card->rx_chain.head); - } -#endif - status = lv1_net_start_rx_dma(bus_id(card), dev_id(card), - card->rx_chain.head->bus_addr, 0); - if (status) - dev_info(ctodev(card), - "lv1_net_start_rx_dma failed, status=%d\n", status); -} - -/** - * gelic_card_disable_rxdmac - disables the receive DMA controller - * @card: card structure - * - * gelic_card_disable_rxdmac terminates processing on the DMA controller by - * turing off DMA and issuing a force end - */ -static inline void gelic_card_disable_rxdmac(struct gelic_card *card) -{ - int status; - - /* this hvc blocks until the DMA in progress really stopped */ - status = lv1_net_stop_rx_dma(bus_id(card), dev_id(card), 0); - if (status) - dev_err(ctodev(card), - "lv1_net_stop_rx_dma failed, %d\n", status); -} - -/** - * gelic_card_disable_txdmac - disables the transmit DMA controller - * @card: card structure - * - * gelic_card_disable_txdmac terminates processing on the DMA controller by - * turing off DMA and issuing a force end - */ -static inline void gelic_card_disable_txdmac(struct gelic_card *card) -{ - int status; - - /* this hvc blocks until the DMA in progress really stopped */ - status = lv1_net_stop_tx_dma(bus_id(card), dev_id(card), 0); - if (status) - dev_err(ctodev(card), - "lv1_net_stop_tx_dma failed, status=%d\n", status); -} - -/** - * gelic_net_stop - called upon ifconfig down - * @netdev: interface device structure - * - * always returns 0 - */ -int gelic_net_stop(struct net_device *netdev) -{ - struct gelic_card *card; - - pr_debug("%s: start\n", __func__); - - netif_stop_queue(netdev); - netif_carrier_off(netdev); - - card = netdev_card(netdev); - gelic_card_down(card); - - pr_debug("%s: done\n", __func__); - return 0; -} - -/** - * gelic_card_get_next_tx_descr - returns the next available tx descriptor - * @card: device structure to get descriptor from - * - * returns the address of the next descriptor, or NULL if not available. - */ -static struct gelic_descr * -gelic_card_get_next_tx_descr(struct gelic_card *card) -{ - if (!card->tx_chain.head) - return NULL; - /* see if the next descriptor is free */ - if (card->tx_chain.tail != card->tx_chain.head->next && - gelic_descr_get_status(card->tx_chain.head) == - GELIC_DESCR_DMA_NOT_IN_USE) - return card->tx_chain.head; - else - return NULL; - -} - -/** - * gelic_net_set_txdescr_cmdstat - sets the tx descriptor command field - * @descr: descriptor structure to fill out - * @skb: packet to consider - * - * fills out the command and status field of the descriptor structure, - * depending on hardware checksum settings. This function assumes a wmb() - * has executed before. - */ -static void gelic_descr_set_tx_cmdstat(struct gelic_descr *descr, - struct sk_buff *skb) -{ - if (skb->ip_summed != CHECKSUM_PARTIAL) - descr->dmac_cmd_status = - cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM | - GELIC_DESCR_TX_DMA_FRAME_TAIL); - else { - /* is packet ip? - * if yes: tcp? udp? */ - if (skb->protocol == htons(ETH_P_IP)) { - if (ip_hdr(skb)->protocol == IPPROTO_TCP) - descr->dmac_cmd_status = - cpu_to_be32(GELIC_DESCR_DMA_CMD_TCP_CHKSUM | - GELIC_DESCR_TX_DMA_FRAME_TAIL); - - else if (ip_hdr(skb)->protocol == IPPROTO_UDP) - descr->dmac_cmd_status = - cpu_to_be32(GELIC_DESCR_DMA_CMD_UDP_CHKSUM | - GELIC_DESCR_TX_DMA_FRAME_TAIL); - else /* - * the stack should checksum non-tcp and non-udp - * packets on his own: NETIF_F_IP_CSUM - */ - descr->dmac_cmd_status = - cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM | - GELIC_DESCR_TX_DMA_FRAME_TAIL); - } - } -} - -static inline struct sk_buff *gelic_put_vlan_tag(struct sk_buff *skb, - unsigned short tag) -{ - struct vlan_ethhdr *veth; - static unsigned int c; - - if (skb_headroom(skb) < VLAN_HLEN) { - struct sk_buff *sk_tmp = skb; - pr_debug("%s: hd=%d c=%ud\n", __func__, skb_headroom(skb), c); - skb = skb_realloc_headroom(sk_tmp, VLAN_HLEN); - if (!skb) - return NULL; - dev_kfree_skb_any(sk_tmp); - } - veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN); - - /* Move the mac addresses to the top of buffer */ - memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN); - - veth->h_vlan_proto = cpu_to_be16(ETH_P_8021Q); - veth->h_vlan_TCI = htons(tag); - - return skb; -} - -/** - * gelic_descr_prepare_tx - setup a descriptor for sending packets - * @card: card structure - * @descr: descriptor structure - * @skb: packet to use - * - * returns 0 on success, <0 on failure. - * - */ -static int gelic_descr_prepare_tx(struct gelic_card *card, - struct gelic_descr *descr, - struct sk_buff *skb) -{ - dma_addr_t buf; - - if (card->vlan_required) { - struct sk_buff *skb_tmp; - enum gelic_port_type type; - - type = netdev_port(skb->dev)->type; - skb_tmp = gelic_put_vlan_tag(skb, - card->vlan[type].tx); - if (!skb_tmp) - return -ENOMEM; - skb = skb_tmp; - } - - buf = dma_map_single(ctodev(card), skb->data, skb->len, DMA_TO_DEVICE); - - if (!buf) { - dev_err(ctodev(card), - "dma map 2 failed (%p, %i). Dropping packet\n", - skb->data, skb->len); - return -ENOMEM; - } - - descr->buf_addr = cpu_to_be32(buf); - descr->buf_size = cpu_to_be32(skb->len); - descr->skb = skb; - descr->data_status = 0; - descr->next_descr_addr = 0; /* terminate hw descr */ - gelic_descr_set_tx_cmdstat(descr, skb); - - /* bump free descriptor pointer */ - card->tx_chain.head = descr->next; - return 0; -} - -/** - * gelic_card_kick_txdma - enables TX DMA processing - * @card: card structure - * @descr: descriptor address to enable TX processing at - * - */ -static int gelic_card_kick_txdma(struct gelic_card *card, - struct gelic_descr *descr) -{ - int status = 0; - - if (card->tx_dma_progress) - return 0; - - if (gelic_descr_get_status(descr) == GELIC_DESCR_DMA_CARDOWNED) { - card->tx_dma_progress = 1; - status = lv1_net_start_tx_dma(bus_id(card), dev_id(card), - descr->bus_addr, 0); - if (status) { - card->tx_dma_progress = 0; - dev_info(ctodev(card), "lv1_net_start_txdma failed," \ - "status=%d\n", status); - } - } - return status; -} - -/** - * gelic_net_xmit - transmits a frame over the device - * @skb: packet to send out - * @netdev: interface device structure - * - * returns 0 on success, <0 on failure - */ -int gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev) -{ - struct gelic_card *card = netdev_card(netdev); - struct gelic_descr *descr; - int result; - unsigned long flags; - - spin_lock_irqsave(&card->tx_lock, flags); - - gelic_card_release_tx_chain(card, 0); - - descr = gelic_card_get_next_tx_descr(card); - if (!descr) { - /* - * no more descriptors free - */ - gelic_card_stop_queues(card); - spin_unlock_irqrestore(&card->tx_lock, flags); - return NETDEV_TX_BUSY; - } - - result = gelic_descr_prepare_tx(card, descr, skb); - if (result) { - /* - * DMA map failed. As chances are that failure - * would continue, just release skb and return - */ - netdev->stats.tx_dropped++; - dev_kfree_skb_any(skb); - spin_unlock_irqrestore(&card->tx_lock, flags); - return NETDEV_TX_OK; - } - /* - * link this prepared descriptor to previous one - * to achieve high performance - */ - descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr); - /* - * as hardware descriptor is modified in the above lines, - * ensure that the hardware sees it - */ - wmb(); - if (gelic_card_kick_txdma(card, descr)) { - /* - * kick failed. - * release descriptor which was just prepared - */ - netdev->stats.tx_dropped++; - /* don't trigger BUG_ON() in gelic_descr_release_tx */ - descr->data_status = cpu_to_be32(GELIC_DESCR_TX_TAIL); - gelic_descr_release_tx(card, descr); - /* reset head */ - card->tx_chain.head = descr; - /* reset hw termination */ - descr->prev->next_descr_addr = 0; - dev_info(ctodev(card), "%s: kick failure\n", __func__); - } - - spin_unlock_irqrestore(&card->tx_lock, flags); - return NETDEV_TX_OK; -} - -/** - * gelic_net_pass_skb_up - takes an skb from a descriptor and passes it on - * @descr: descriptor to process - * @card: card structure - * @netdev: net_device structure to be passed packet - * - * iommu-unmaps the skb, fills out skb structure and passes the data to the - * stack. The descriptor state is not changed. - */ -static void gelic_net_pass_skb_up(struct gelic_descr *descr, - struct gelic_card *card, - struct net_device *netdev) - -{ - struct sk_buff *skb = descr->skb; - u32 data_status, data_error; - - data_status = be32_to_cpu(descr->data_status); - data_error = be32_to_cpu(descr->data_error); - /* unmap skb buffer */ - dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr), - GELIC_NET_MAX_MTU, - DMA_FROM_DEVICE); - - skb_put(skb, be32_to_cpu(descr->valid_size)? - be32_to_cpu(descr->valid_size) : - be32_to_cpu(descr->result_size)); - if (!descr->valid_size) - dev_info(ctodev(card), "buffer full %x %x %x\n", - be32_to_cpu(descr->result_size), - be32_to_cpu(descr->buf_size), - be32_to_cpu(descr->dmac_cmd_status)); - - descr->skb = NULL; - /* - * the card put 2 bytes vlan tag in front - * of the ethernet frame - */ - skb_pull(skb, 2); - skb->protocol = eth_type_trans(skb, netdev); - - /* checksum offload */ - if (netdev->features & NETIF_F_RXCSUM) { - if ((data_status & GELIC_DESCR_DATA_STATUS_CHK_MASK) && - (!(data_error & GELIC_DESCR_DATA_ERROR_CHK_MASK))) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb_checksum_none_assert(skb); - } else - skb_checksum_none_assert(skb); - - /* update netdevice statistics */ - netdev->stats.rx_packets++; - netdev->stats.rx_bytes += skb->len; - - /* pass skb up to stack */ - netif_receive_skb(skb); -} - -/** - * gelic_card_decode_one_descr - processes an rx descriptor - * @card: card structure - * - * returns 1 if a packet has been sent to the stack, otherwise 0 - * - * processes an rx descriptor by iommu-unmapping the data buffer and passing - * the packet up to the stack - */ -static int gelic_card_decode_one_descr(struct gelic_card *card) -{ - enum gelic_descr_dma_status status; - struct gelic_descr_chain *chain = &card->rx_chain; - struct gelic_descr *descr = chain->head; - struct net_device *netdev = NULL; - int dmac_chain_ended; - - status = gelic_descr_get_status(descr); - - if (status == GELIC_DESCR_DMA_CARDOWNED) - return 0; - - if (status == GELIC_DESCR_DMA_NOT_IN_USE) { - dev_dbg(ctodev(card), "dormant descr? %p\n", descr); - return 0; - } - - /* netdevice select */ - if (card->vlan_required) { - unsigned int i; - u16 vid; - vid = *(u16 *)(descr->skb->data) & VLAN_VID_MASK; - for (i = 0; i < GELIC_PORT_MAX; i++) { - if (card->vlan[i].rx == vid) { - netdev = card->netdev[i]; - break; - } - } - if (GELIC_PORT_MAX <= i) { - pr_info("%s: unknown packet vid=%x\n", __func__, vid); - goto refill; - } - } else - netdev = card->netdev[GELIC_PORT_ETHERNET_0]; - - if ((status == GELIC_DESCR_DMA_RESPONSE_ERROR) || - (status == GELIC_DESCR_DMA_PROTECTION_ERROR) || - (status == GELIC_DESCR_DMA_FORCE_END)) { - dev_info(ctodev(card), "dropping RX descriptor with state %x\n", - status); - netdev->stats.rx_dropped++; - goto refill; - } - - if (status == GELIC_DESCR_DMA_BUFFER_FULL) { - /* - * Buffer full would occur if and only if - * the frame length was longer than the size of this - * descriptor's buffer. If the frame length was equal - * to or shorter than buffer'size, FRAME_END condition - * would occur. - * Anyway this frame was longer than the MTU, - * just drop it. - */ - dev_info(ctodev(card), "overlength frame\n"); - goto refill; - } - /* - * descriptors any other than FRAME_END here should - * be treated as error. - */ - if (status != GELIC_DESCR_DMA_FRAME_END) { - dev_dbg(ctodev(card), "RX descriptor with state %x\n", - status); - goto refill; - } - - /* ok, we've got a packet in descr */ - gelic_net_pass_skb_up(descr, card, netdev); -refill: - - /* is the current descriptor terminated with next_descr == NULL? */ - dmac_chain_ended = - be32_to_cpu(descr->dmac_cmd_status) & - GELIC_DESCR_RX_DMA_CHAIN_END; - /* - * So that always DMAC can see the end - * of the descriptor chain to avoid - * from unwanted DMAC overrun. - */ - descr->next_descr_addr = 0; - - /* change the descriptor state: */ - gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); - - /* - * this call can fail, but for now, just leave this - * decriptor without skb - */ - gelic_descr_prepare_rx(card, descr); - - chain->tail = descr; - chain->head = descr->next; - - /* - * Set this descriptor the end of the chain. - */ - descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr); - - /* - * If dmac chain was met, DMAC stopped. - * thus re-enable it - */ - - if (dmac_chain_ended) - gelic_card_enable_rxdmac(card); - - return 1; -} - -/** - * gelic_net_poll - NAPI poll function called by the stack to return packets - * @napi: napi structure - * @budget: number of packets we can pass to the stack at most - * - * returns the number of the processed packets - * - */ -static int gelic_net_poll(struct napi_struct *napi, int budget) -{ - struct gelic_card *card = container_of(napi, struct gelic_card, napi); - int packets_done = 0; - - while (packets_done < budget) { - if (!gelic_card_decode_one_descr(card)) - break; - - packets_done++; - } - - if (packets_done < budget) { - napi_complete(napi); - gelic_card_rx_irq_on(card); - } - return packets_done; -} -/** - * gelic_net_change_mtu - changes the MTU of an interface - * @netdev: interface device structure - * @new_mtu: new MTU value - * - * returns 0 on success, <0 on failure - */ -int gelic_net_change_mtu(struct net_device *netdev, int new_mtu) -{ - /* no need to re-alloc skbs or so -- the max mtu is about 2.3k - * and mtu is outbound only anyway */ - if ((new_mtu < GELIC_NET_MIN_MTU) || - (new_mtu > GELIC_NET_MAX_MTU)) { - return -EINVAL; - } - netdev->mtu = new_mtu; - return 0; -} - -/** - * gelic_card_interrupt - event handler for gelic_net - */ -static irqreturn_t gelic_card_interrupt(int irq, void *ptr) -{ - unsigned long flags; - struct gelic_card *card = ptr; - u64 status; - - status = card->irq_status; - - if (!status) - return IRQ_NONE; - - status &= card->irq_mask; - - if (status & GELIC_CARD_RXINT) { - gelic_card_rx_irq_off(card); - napi_schedule(&card->napi); - } - - if (status & GELIC_CARD_TXINT) { - spin_lock_irqsave(&card->tx_lock, flags); - card->tx_dma_progress = 0; - gelic_card_release_tx_chain(card, 0); - /* kick outstanding tx descriptor if any */ - gelic_card_kick_txdma(card, card->tx_chain.tail); - spin_unlock_irqrestore(&card->tx_lock, flags); - } - - /* ether port status changed */ - if (status & GELIC_CARD_PORT_STATUS_CHANGED) - gelic_card_get_ether_port_status(card, 1); - -#ifdef CONFIG_GELIC_WIRELESS - if (status & (GELIC_CARD_WLAN_EVENT_RECEIVED | - GELIC_CARD_WLAN_COMMAND_COMPLETED)) - gelic_wl_interrupt(card->netdev[GELIC_PORT_WIRELESS], status); -#endif - - return IRQ_HANDLED; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -/** - * gelic_net_poll_controller - artificial interrupt for netconsole etc. - * @netdev: interface device structure - * - * see Documentation/networking/netconsole.txt - */ -void gelic_net_poll_controller(struct net_device *netdev) -{ - struct gelic_card *card = netdev_card(netdev); - - gelic_card_set_irq_mask(card, 0); - gelic_card_interrupt(netdev->irq, netdev); - gelic_card_set_irq_mask(card, card->irq_mask); -} -#endif /* CONFIG_NET_POLL_CONTROLLER */ - -/** - * gelic_net_open - called upon ifconfig up - * @netdev: interface device structure - * - * returns 0 on success, <0 on failure - * - * gelic_net_open allocates all the descriptors and memory needed for - * operation, sets up multicast list and enables interrupts - */ -int gelic_net_open(struct net_device *netdev) -{ - struct gelic_card *card = netdev_card(netdev); - - dev_dbg(ctodev(card), " -> %s %p\n", __func__, netdev); - - gelic_card_up(card); - - netif_start_queue(netdev); - gelic_card_get_ether_port_status(card, 1); - - dev_dbg(ctodev(card), " <- %s\n", __func__); - return 0; -} - -void gelic_net_get_drvinfo(struct net_device *netdev, - struct ethtool_drvinfo *info) -{ - strncpy(info->driver, DRV_NAME, sizeof(info->driver) - 1); - strncpy(info->version, DRV_VERSION, sizeof(info->version) - 1); -} - -static int gelic_ether_get_settings(struct net_device *netdev, - struct ethtool_cmd *cmd) -{ - struct gelic_card *card = netdev_card(netdev); - - gelic_card_get_ether_port_status(card, 0); - - if (card->ether_port_status & GELIC_LV1_ETHER_FULL_DUPLEX) - cmd->duplex = DUPLEX_FULL; - else - cmd->duplex = DUPLEX_HALF; - - switch (card->ether_port_status & GELIC_LV1_ETHER_SPEED_MASK) { - case GELIC_LV1_ETHER_SPEED_10: - ethtool_cmd_speed_set(cmd, SPEED_10); - break; - case GELIC_LV1_ETHER_SPEED_100: - ethtool_cmd_speed_set(cmd, SPEED_100); - break; - case GELIC_LV1_ETHER_SPEED_1000: - ethtool_cmd_speed_set(cmd, SPEED_1000); - break; - default: - pr_info("%s: speed unknown\n", __func__); - ethtool_cmd_speed_set(cmd, SPEED_10); - break; - } - - cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | - SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | - SUPPORTED_1000baseT_Full; - cmd->advertising = cmd->supported; - if (card->link_mode & GELIC_LV1_ETHER_AUTO_NEG) { - cmd->autoneg = AUTONEG_ENABLE; - } else { - cmd->autoneg = AUTONEG_DISABLE; - cmd->advertising &= ~ADVERTISED_Autoneg; - } - cmd->port = PORT_TP; - - return 0; -} - -static int gelic_ether_set_settings(struct net_device *netdev, - struct ethtool_cmd *cmd) -{ - struct gelic_card *card = netdev_card(netdev); - u64 mode; - int ret; - - if (cmd->autoneg == AUTONEG_ENABLE) { - mode = GELIC_LV1_ETHER_AUTO_NEG; - } else { - switch (cmd->speed) { - case SPEED_10: - mode = GELIC_LV1_ETHER_SPEED_10; - break; - case SPEED_100: - mode = GELIC_LV1_ETHER_SPEED_100; - break; - case SPEED_1000: - mode = GELIC_LV1_ETHER_SPEED_1000; - break; - default: - return -EINVAL; - } - if (cmd->duplex == DUPLEX_FULL) - mode |= GELIC_LV1_ETHER_FULL_DUPLEX; - else if (cmd->speed == SPEED_1000) { - pr_info("1000 half duplex is not supported.\n"); - return -EINVAL; - } - } - - ret = gelic_card_set_link_mode(card, mode); - - if (ret) - return ret; - - return 0; -} - -static void gelic_net_get_wol(struct net_device *netdev, - struct ethtool_wolinfo *wol) -{ - if (0 <= ps3_compare_firmware_version(2, 2, 0)) - wol->supported = WAKE_MAGIC; - else - wol->supported = 0; - - wol->wolopts = ps3_sys_manager_get_wol() ? wol->supported : 0; - memset(&wol->sopass, 0, sizeof(wol->sopass)); -} -static int gelic_net_set_wol(struct net_device *netdev, - struct ethtool_wolinfo *wol) -{ - int status; - struct gelic_card *card; - u64 v1, v2; - - if (ps3_compare_firmware_version(2, 2, 0) < 0 || - !capable(CAP_NET_ADMIN)) - return -EPERM; - - if (wol->wolopts & ~WAKE_MAGIC) - return -EINVAL; - - card = netdev_card(netdev); - if (wol->wolopts & WAKE_MAGIC) { - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_SET_WOL, - GELIC_LV1_WOL_MAGIC_PACKET, - 0, GELIC_LV1_WOL_MP_ENABLE, - &v1, &v2); - if (status) { - pr_info("%s: enabling WOL failed %d\n", __func__, - status); - status = -EIO; - goto done; - } - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_SET_WOL, - GELIC_LV1_WOL_ADD_MATCH_ADDR, - 0, GELIC_LV1_WOL_MATCH_ALL, - &v1, &v2); - if (!status) - ps3_sys_manager_set_wol(1); - else { - pr_info("%s: enabling WOL filter failed %d\n", - __func__, status); - status = -EIO; - } - } else { - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_SET_WOL, - GELIC_LV1_WOL_MAGIC_PACKET, - 0, GELIC_LV1_WOL_MP_DISABLE, - &v1, &v2); - if (status) { - pr_info("%s: disabling WOL failed %d\n", __func__, - status); - status = -EIO; - goto done; - } - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_SET_WOL, - GELIC_LV1_WOL_DELETE_MATCH_ADDR, - 0, GELIC_LV1_WOL_MATCH_ALL, - &v1, &v2); - if (!status) - ps3_sys_manager_set_wol(0); - else { - pr_info("%s: removing WOL filter failed %d\n", - __func__, status); - status = -EIO; - } - } -done: - return status; -} - -static const struct ethtool_ops gelic_ether_ethtool_ops = { - .get_drvinfo = gelic_net_get_drvinfo, - .get_settings = gelic_ether_get_settings, - .set_settings = gelic_ether_set_settings, - .get_link = ethtool_op_get_link, - .get_wol = gelic_net_get_wol, - .set_wol = gelic_net_set_wol, -}; - -/** - * gelic_net_tx_timeout_task - task scheduled by the watchdog timeout - * function (to be called not under interrupt status) - * @work: work is context of tx timout task - * - * called as task when tx hangs, resets interface (if interface is up) - */ -static void gelic_net_tx_timeout_task(struct work_struct *work) -{ - struct gelic_card *card = - container_of(work, struct gelic_card, tx_timeout_task); - struct net_device *netdev = card->netdev[GELIC_PORT_ETHERNET_0]; - - dev_info(ctodev(card), "%s:Timed out. Restarting...\n", __func__); - - if (!(netdev->flags & IFF_UP)) - goto out; - - netif_device_detach(netdev); - gelic_net_stop(netdev); - - gelic_net_open(netdev); - netif_device_attach(netdev); - -out: - atomic_dec(&card->tx_timeout_task_counter); -} - -/** - * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in. - * @netdev: interface device structure - * - * called, if tx hangs. Schedules a task that resets the interface - */ -void gelic_net_tx_timeout(struct net_device *netdev) -{ - struct gelic_card *card; - - card = netdev_card(netdev); - atomic_inc(&card->tx_timeout_task_counter); - if (netdev->flags & IFF_UP) - schedule_work(&card->tx_timeout_task); - else - atomic_dec(&card->tx_timeout_task_counter); -} - -static const struct net_device_ops gelic_netdevice_ops = { - .ndo_open = gelic_net_open, - .ndo_stop = gelic_net_stop, - .ndo_start_xmit = gelic_net_xmit, - .ndo_set_multicast_list = gelic_net_set_multi, - .ndo_change_mtu = gelic_net_change_mtu, - .ndo_tx_timeout = gelic_net_tx_timeout, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = gelic_net_poll_controller, -#endif -}; - -/** - * gelic_ether_setup_netdev_ops - initialization of net_device operations - * @netdev: net_device structure - * - * fills out function pointers in the net_device structure - */ -static void __devinit gelic_ether_setup_netdev_ops(struct net_device *netdev, - struct napi_struct *napi) -{ - netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT; - /* NAPI */ - netif_napi_add(netdev, napi, - gelic_net_poll, GELIC_NET_NAPI_WEIGHT); - netdev->ethtool_ops = &gelic_ether_ethtool_ops; - netdev->netdev_ops = &gelic_netdevice_ops; -} - -/** - * gelic_ether_setup_netdev - initialization of net_device - * @netdev: net_device structure - * @card: card structure - * - * Returns 0 on success or <0 on failure - * - * gelic_ether_setup_netdev initializes the net_device structure - * and register it. - **/ -int __devinit gelic_net_setup_netdev(struct net_device *netdev, - struct gelic_card *card) -{ - int status; - u64 v1, v2; - - netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM; - - netdev->features = NETIF_F_IP_CSUM; - if (GELIC_CARD_RX_CSUM_DEFAULT) - netdev->features |= NETIF_F_RXCSUM; - - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_GET_MAC_ADDRESS, - 0, 0, 0, &v1, &v2); - v1 <<= 16; - if (status || !is_valid_ether_addr((u8 *)&v1)) { - dev_info(ctodev(card), - "%s:lv1_net_control GET_MAC_ADDR failed %d\n", - __func__, status); - return -EINVAL; - } - memcpy(netdev->dev_addr, &v1, ETH_ALEN); - - if (card->vlan_required) { - netdev->hard_header_len += VLAN_HLEN; - /* - * As vlan is internally used, - * we can not receive vlan packets - */ - netdev->features |= NETIF_F_VLAN_CHALLENGED; - } - - status = register_netdev(netdev); - if (status) { - dev_err(ctodev(card), "%s:Couldn't register %s %d\n", - __func__, netdev->name, status); - return status; - } - dev_info(ctodev(card), "%s: MAC addr %pM\n", - netdev->name, netdev->dev_addr); - - return 0; -} - -/** - * gelic_alloc_card_net - allocates net_device and card structure - * - * returns the card structure or NULL in case of errors - * - * the card and net_device structures are linked to each other - */ -#define GELIC_ALIGN (32) -static struct gelic_card * __devinit gelic_alloc_card_net(struct net_device **netdev) -{ - struct gelic_card *card; - struct gelic_port *port; - void *p; - size_t alloc_size; - /* - * gelic requires dma descriptor is 32 bytes aligned and - * the hypervisor requires irq_status is 8 bytes aligned. - */ - BUILD_BUG_ON(offsetof(struct gelic_card, irq_status) % 8); - BUILD_BUG_ON(offsetof(struct gelic_card, descr) % 32); - alloc_size = - sizeof(struct gelic_card) + - sizeof(struct gelic_descr) * GELIC_NET_RX_DESCRIPTORS + - sizeof(struct gelic_descr) * GELIC_NET_TX_DESCRIPTORS + - GELIC_ALIGN - 1; - - p = kzalloc(alloc_size, GFP_KERNEL); - if (!p) - return NULL; - card = PTR_ALIGN(p, GELIC_ALIGN); - card->unalign = p; - - /* - * alloc netdev - */ - *netdev = alloc_etherdev(sizeof(struct gelic_port)); - if (!netdev) { - kfree(card->unalign); - return NULL; - } - port = netdev_priv(*netdev); - - /* gelic_port */ - port->netdev = *netdev; - port->card = card; - port->type = GELIC_PORT_ETHERNET_0; - - /* gelic_card */ - card->netdev[GELIC_PORT_ETHERNET_0] = *netdev; - - INIT_WORK(&card->tx_timeout_task, gelic_net_tx_timeout_task); - init_waitqueue_head(&card->waitq); - atomic_set(&card->tx_timeout_task_counter, 0); - mutex_init(&card->updown_lock); - atomic_set(&card->users, 0); - - return card; -} - -static void __devinit gelic_card_get_vlan_info(struct gelic_card *card) -{ - u64 v1, v2; - int status; - unsigned int i; - struct { - int tx; - int rx; - } vlan_id_ix[2] = { - [GELIC_PORT_ETHERNET_0] = { - .tx = GELIC_LV1_VLAN_TX_ETHERNET_0, - .rx = GELIC_LV1_VLAN_RX_ETHERNET_0 - }, - [GELIC_PORT_WIRELESS] = { - .tx = GELIC_LV1_VLAN_TX_WIRELESS, - .rx = GELIC_LV1_VLAN_RX_WIRELESS - } - }; - - for (i = 0; i < ARRAY_SIZE(vlan_id_ix); i++) { - /* tx tag */ - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_GET_VLAN_ID, - vlan_id_ix[i].tx, - 0, 0, &v1, &v2); - if (status || !v1) { - if (status != LV1_NO_ENTRY) - dev_dbg(ctodev(card), - "get vlan id for tx(%d) failed(%d)\n", - vlan_id_ix[i].tx, status); - card->vlan[i].tx = 0; - card->vlan[i].rx = 0; - continue; - } - card->vlan[i].tx = (u16)v1; - - /* rx tag */ - status = lv1_net_control(bus_id(card), dev_id(card), - GELIC_LV1_GET_VLAN_ID, - vlan_id_ix[i].rx, - 0, 0, &v1, &v2); - if (status || !v1) { - if (status != LV1_NO_ENTRY) - dev_info(ctodev(card), - "get vlan id for rx(%d) failed(%d)\n", - vlan_id_ix[i].rx, status); - card->vlan[i].tx = 0; - card->vlan[i].rx = 0; - continue; - } - card->vlan[i].rx = (u16)v1; - - dev_dbg(ctodev(card), "vlan_id[%d] tx=%02x rx=%02x\n", - i, card->vlan[i].tx, card->vlan[i].rx); - } - - if (card->vlan[GELIC_PORT_ETHERNET_0].tx) { - BUG_ON(!card->vlan[GELIC_PORT_WIRELESS].tx); - card->vlan_required = 1; - } else - card->vlan_required = 0; - - /* check wirelss capable firmware */ - if (ps3_compare_firmware_version(1, 6, 0) < 0) { - card->vlan[GELIC_PORT_WIRELESS].tx = 0; - card->vlan[GELIC_PORT_WIRELESS].rx = 0; - } - - dev_info(ctodev(card), "internal vlan %s\n", - card->vlan_required? "enabled" : "disabled"); -} -/** - * ps3_gelic_driver_probe - add a device to the control of this driver - */ -static int __devinit ps3_gelic_driver_probe(struct ps3_system_bus_device *dev) -{ - struct gelic_card *card; - struct net_device *netdev; - int result; - - pr_debug("%s: called\n", __func__); - result = ps3_open_hv_device(dev); - - if (result) { - dev_dbg(&dev->core, "%s:ps3_open_hv_device failed\n", - __func__); - goto fail_open; - } - - result = ps3_dma_region_create(dev->d_region); - - if (result) { - dev_dbg(&dev->core, "%s:ps3_dma_region_create failed(%d)\n", - __func__, result); - BUG_ON("check region type"); - goto fail_dma_region; - } - - /* alloc card/netdevice */ - card = gelic_alloc_card_net(&netdev); - if (!card) { - dev_info(&dev->core, "%s:gelic_net_alloc_card failed\n", - __func__); - result = -ENOMEM; - goto fail_alloc_card; - } - ps3_system_bus_set_drvdata(dev, card); - card->dev = dev; - - /* get internal vlan info */ - gelic_card_get_vlan_info(card); - - card->link_mode = GELIC_LV1_ETHER_AUTO_NEG; - - /* setup interrupt */ - result = lv1_net_set_interrupt_status_indicator(bus_id(card), - dev_id(card), - ps3_mm_phys_to_lpar(__pa(&card->irq_status)), - 0); - - if (result) { - dev_dbg(&dev->core, - "%s:set_interrupt_status_indicator failed: %s\n", - __func__, ps3_result(result)); - result = -EIO; - goto fail_status_indicator; - } - - result = ps3_sb_event_receive_port_setup(dev, PS3_BINDING_CPU_ANY, - &card->irq); - - if (result) { - dev_info(ctodev(card), - "%s:gelic_net_open_device failed (%d)\n", - __func__, result); - result = -EPERM; - goto fail_alloc_irq; - } - result = request_irq(card->irq, gelic_card_interrupt, - IRQF_DISABLED, netdev->name, card); - - if (result) { - dev_info(ctodev(card), "%s:request_irq failed (%d)\n", - __func__, result); - goto fail_request_irq; - } - - /* setup card structure */ - card->irq_mask = GELIC_CARD_RXINT | GELIC_CARD_TXINT | - GELIC_CARD_PORT_STATUS_CHANGED; - - - if (gelic_card_init_chain(card, &card->tx_chain, - card->descr, GELIC_NET_TX_DESCRIPTORS)) - goto fail_alloc_tx; - if (gelic_card_init_chain(card, &card->rx_chain, - card->descr + GELIC_NET_TX_DESCRIPTORS, - GELIC_NET_RX_DESCRIPTORS)) - goto fail_alloc_rx; - - /* head of chain */ - card->tx_top = card->tx_chain.head; - card->rx_top = card->rx_chain.head; - dev_dbg(ctodev(card), "descr rx %p, tx %p, size %#lx, num %#x\n", - card->rx_top, card->tx_top, sizeof(struct gelic_descr), - GELIC_NET_RX_DESCRIPTORS); - /* allocate rx skbs */ - if (gelic_card_alloc_rx_skbs(card)) - goto fail_alloc_skbs; - - spin_lock_init(&card->tx_lock); - card->tx_dma_progress = 0; - - /* setup net_device structure */ - netdev->irq = card->irq; - SET_NETDEV_DEV(netdev, &card->dev->core); - gelic_ether_setup_netdev_ops(netdev, &card->napi); - result = gelic_net_setup_netdev(netdev, card); - if (result) { - dev_dbg(&dev->core, "%s: setup_netdev failed %d", - __func__, result); - goto fail_setup_netdev; - } - -#ifdef CONFIG_GELIC_WIRELESS - if (gelic_wl_driver_probe(card)) { - dev_dbg(&dev->core, "%s: WL init failed\n", __func__); - goto fail_setup_netdev; - } -#endif - pr_debug("%s: done\n", __func__); - return 0; - -fail_setup_netdev: -fail_alloc_skbs: - gelic_card_free_chain(card, card->rx_chain.head); -fail_alloc_rx: - gelic_card_free_chain(card, card->tx_chain.head); -fail_alloc_tx: - free_irq(card->irq, card); - netdev->irq = NO_IRQ; -fail_request_irq: - ps3_sb_event_receive_port_destroy(dev, card->irq); -fail_alloc_irq: - lv1_net_set_interrupt_status_indicator(bus_id(card), - bus_id(card), - 0, 0); -fail_status_indicator: - ps3_system_bus_set_drvdata(dev, NULL); - kfree(netdev_card(netdev)->unalign); - free_netdev(netdev); -fail_alloc_card: - ps3_dma_region_free(dev->d_region); -fail_dma_region: - ps3_close_hv_device(dev); -fail_open: - return result; -} - -/** - * ps3_gelic_driver_remove - remove a device from the control of this driver - */ - -static int ps3_gelic_driver_remove(struct ps3_system_bus_device *dev) -{ - struct gelic_card *card = ps3_system_bus_get_drvdata(dev); - struct net_device *netdev0; - pr_debug("%s: called\n", __func__); - - /* set auto-negotiation */ - gelic_card_set_link_mode(card, GELIC_LV1_ETHER_AUTO_NEG); - -#ifdef CONFIG_GELIC_WIRELESS - gelic_wl_driver_remove(card); -#endif - /* stop interrupt */ - gelic_card_set_irq_mask(card, 0); - - /* turn off DMA, force end */ - gelic_card_disable_rxdmac(card); - gelic_card_disable_txdmac(card); - - /* release chains */ - gelic_card_release_tx_chain(card, 1); - gelic_card_release_rx_chain(card); - - gelic_card_free_chain(card, card->tx_top); - gelic_card_free_chain(card, card->rx_top); - - netdev0 = card->netdev[GELIC_PORT_ETHERNET_0]; - /* disconnect event port */ - free_irq(card->irq, card); - netdev0->irq = NO_IRQ; - ps3_sb_event_receive_port_destroy(card->dev, card->irq); - - wait_event(card->waitq, - atomic_read(&card->tx_timeout_task_counter) == 0); - - lv1_net_set_interrupt_status_indicator(bus_id(card), dev_id(card), - 0 , 0); - - unregister_netdev(netdev0); - kfree(netdev_card(netdev0)->unalign); - free_netdev(netdev0); - - ps3_system_bus_set_drvdata(dev, NULL); - - ps3_dma_region_free(dev->d_region); - - ps3_close_hv_device(dev); - - pr_debug("%s: done\n", __func__); - return 0; -} - -static struct ps3_system_bus_driver ps3_gelic_driver = { - .match_id = PS3_MATCH_ID_GELIC, - .probe = ps3_gelic_driver_probe, - .remove = ps3_gelic_driver_remove, - .shutdown = ps3_gelic_driver_remove, - .core.name = "ps3_gelic_driver", - .core.owner = THIS_MODULE, -}; - -static int __init ps3_gelic_driver_init (void) -{ - return firmware_has_feature(FW_FEATURE_PS3_LV1) - ? ps3_system_bus_driver_register(&ps3_gelic_driver) - : -ENODEV; -} - -static void __exit ps3_gelic_driver_exit (void) -{ - ps3_system_bus_driver_unregister(&ps3_gelic_driver); -} - -module_init(ps3_gelic_driver_init); -module_exit(ps3_gelic_driver_exit); - -MODULE_ALIAS(PS3_MODULE_ALIAS_GELIC); - |
