2 * PS3 gelic network driver.
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * Copyright 2006, 2007 Sony Corporation
7 * This file is based on: spider_net.c
9 * (C) Copyright IBM Corp. 2005
11 * Authors : Utz Bacher <utz.bacher@de.ibm.com>
12 * Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include <linux/kernel.h>
32 #include <linux/module.h>
34 #include <linux/etherdevice.h>
35 #include <linux/ethtool.h>
36 #include <linux/if_vlan.h>
40 #include <linux/tcp.h>
42 #include <linux/dma-mapping.h>
43 #include <net/checksum.h>
44 #include <asm/firmware.h>
46 #include <asm/lv1call.h>
48 #include "ps3_gelic_net.h"
49 #include "ps3_gelic_wireless.h"
51 #define DRV_NAME "Gelic Network Driver"
52 #define DRV_VERSION "2.0"
54 MODULE_AUTHOR("SCE Inc.");
55 MODULE_DESCRIPTION("Gelic Network driver");
56 MODULE_LICENSE("GPL");
59 static inline void gelic_card_enable_rxdmac(struct gelic_card *card);
60 static inline void gelic_card_disable_rxdmac(struct gelic_card *card);
61 static inline void gelic_card_disable_txdmac(struct gelic_card *card);
62 static inline void gelic_card_reset_chain(struct gelic_card *card,
63 struct gelic_descr_chain *chain,
64 struct gelic_descr *start_descr);
67 int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask)
71 status = lv1_net_set_interrupt_mask(bus_id(card), dev_id(card),
74 dev_info(ctodev(card),
75 "%s failed %d\n", __func__, status);
79 static inline void gelic_card_rx_irq_on(struct gelic_card *card)
81 card->irq_mask |= GELIC_CARD_RXINT;
82 gelic_card_set_irq_mask(card, card->irq_mask);
84 static inline void gelic_card_rx_irq_off(struct gelic_card *card)
86 card->irq_mask &= ~GELIC_CARD_RXINT;
87 gelic_card_set_irq_mask(card, card->irq_mask);
90 static void gelic_card_get_ether_port_status(struct gelic_card *card,
94 struct net_device *ether_netdev;
96 lv1_net_control(bus_id(card), dev_id(card),
97 GELIC_LV1_GET_ETH_PORT_STATUS,
98 GELIC_LV1_VLAN_TX_ETHERNET, 0, 0,
99 &card->ether_port_status, &v2);
102 ether_netdev = card->netdev[GELIC_PORT_ETHERNET];
103 if (card->ether_port_status & GELIC_LV1_ETHER_LINK_UP)
104 netif_carrier_on(ether_netdev);
106 netif_carrier_off(ether_netdev);
110 void gelic_card_up(struct gelic_card *card)
112 pr_debug("%s: called\n", __func__);
113 mutex_lock(&card->updown_lock);
114 if (atomic_inc_return(&card->users) == 1) {
115 pr_debug("%s: real do\n", __func__);
117 gelic_card_set_irq_mask(card, card->irq_mask);
119 gelic_card_enable_rxdmac(card);
121 napi_enable(&card->napi);
123 mutex_unlock(&card->updown_lock);
124 pr_debug("%s: done\n", __func__);
127 void gelic_card_down(struct gelic_card *card)
130 pr_debug("%s: called\n", __func__);
131 mutex_lock(&card->updown_lock);
132 if (atomic_dec_if_positive(&card->users) == 0) {
133 pr_debug("%s: real do\n", __func__);
134 napi_disable(&card->napi);
136 * Disable irq. Wireless interrupts will
137 * be disabled later if any
139 mask = card->irq_mask & (GELIC_CARD_WLAN_EVENT_RECEIVED |
140 GELIC_CARD_WLAN_COMMAND_COMPLETED);
141 gelic_card_set_irq_mask(card, mask);
143 gelic_card_disable_rxdmac(card);
144 gelic_card_reset_chain(card, &card->rx_chain,
145 card->descr + GELIC_NET_TX_DESCRIPTORS);
147 gelic_card_disable_txdmac(card);
149 mutex_unlock(&card->updown_lock);
150 pr_debug("%s: done\n", __func__);
154 * gelic_descr_get_status -- returns the status of a descriptor
155 * @descr: descriptor to look at
157 * returns the status as in the dmac_cmd_status field of the descriptor
159 static enum gelic_descr_dma_status
160 gelic_descr_get_status(struct gelic_descr *descr)
162 return be32_to_cpu(descr->dmac_cmd_status) & GELIC_DESCR_DMA_STAT_MASK;
166 * gelic_descr_set_status -- sets the status of a descriptor
167 * @descr: descriptor to change
168 * @status: status to set in the descriptor
170 * changes the status to the specified value. Doesn't change other bits
173 static void gelic_descr_set_status(struct gelic_descr *descr,
174 enum gelic_descr_dma_status status)
176 descr->dmac_cmd_status = cpu_to_be32(status |
177 (be32_to_cpu(descr->dmac_cmd_status) &
178 ~GELIC_DESCR_DMA_STAT_MASK));
180 * dma_cmd_status field is used to indicate whether the descriptor
182 * Usually caller of this function wants to inform that to the
183 * hardware, so we assure here the hardware sees the change.
189 * gelic_card_free_chain - free descriptor chain
190 * @card: card structure
191 * @descr_in: address of desc
193 static void gelic_card_free_chain(struct gelic_card *card,
194 struct gelic_descr *descr_in)
196 struct gelic_descr *descr;
198 for (descr = descr_in; descr && descr->bus_addr; descr = descr->next) {
199 dma_unmap_single(ctodev(card), descr->bus_addr,
200 GELIC_DESCR_SIZE, DMA_BIDIRECTIONAL);
206 * gelic_card_init_chain - links descriptor chain
207 * @card: card structure
208 * @chain: address of chain
209 * @start_descr: address of descriptor array
210 * @no: number of descriptors
212 * we manage a circular list that mirrors the hardware structure,
213 * except that the hardware uses bus addresses.
215 * returns 0 on success, <0 on failure
217 static int __devinit gelic_card_init_chain(struct gelic_card *card,
218 struct gelic_descr_chain *chain,
219 struct gelic_descr *start_descr,
223 struct gelic_descr *descr;
226 memset(descr, 0, sizeof(*descr) * no);
228 /* set up the hardware pointers in each descriptor */
229 for (i = 0; i < no; i++, descr++) {
230 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
232 dma_map_single(ctodev(card), descr,
236 if (!descr->bus_addr)
239 descr->next = descr + 1;
240 descr->prev = descr - 1;
242 /* make them as ring */
243 (descr - 1)->next = start_descr;
244 start_descr->prev = (descr - 1);
246 /* chain bus addr of hw descriptor */
248 for (i = 0; i < no; i++, descr++) {
249 descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr);
252 chain->head = start_descr;
253 chain->tail = start_descr;
255 /* do not chain last hw descriptor */
256 (descr - 1)->next_descr_addr = 0;
261 for (i--, descr--; 0 <= i; i--, descr--)
263 dma_unmap_single(ctodev(card), descr->bus_addr,
270 * gelic_card_reset_chain - reset status of a descriptor chain
271 * @card: card structure
272 * @chain: address of chain
273 * @start_descr: address of descriptor array
275 * Reset the status of dma descriptors to ready state
276 * and re-initialize the hardware chain for later use
278 static void gelic_card_reset_chain(struct gelic_card *card,
279 struct gelic_descr_chain *chain,
280 struct gelic_descr *start_descr)
282 struct gelic_descr *descr;
284 for (descr = start_descr; start_descr != descr->next; descr++) {
285 gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED);
286 descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr);
289 chain->head = start_descr;
290 chain->tail = (descr - 1);
292 (descr - 1)->next_descr_addr = 0;
295 * gelic_descr_prepare_rx - reinitializes a rx descriptor
296 * @card: card structure
297 * @descr: descriptor to re-init
299 * return 0 on succes, <0 on failure
301 * allocates a new rx skb, iommu-maps it and attaches it to the descriptor.
302 * Activate the descriptor state-wise
304 static int gelic_descr_prepare_rx(struct gelic_card *card,
305 struct gelic_descr *descr)
308 unsigned int bufsize;
310 if (gelic_descr_get_status(descr) != GELIC_DESCR_DMA_NOT_IN_USE)
311 dev_info(ctodev(card), "%s: ERROR status \n", __func__);
312 /* we need to round up the buffer size to a multiple of 128 */
313 bufsize = ALIGN(GELIC_NET_MAX_MTU, GELIC_NET_RXBUF_ALIGN);
315 /* and we need to have it 128 byte aligned, therefore we allocate a
317 descr->skb = dev_alloc_skb(bufsize + GELIC_NET_RXBUF_ALIGN - 1);
319 descr->buf_addr = 0; /* tell DMAC don't touch memory */
320 dev_info(ctodev(card),
321 "%s:allocate skb failed !!\n", __func__);
324 descr->buf_size = cpu_to_be32(bufsize);
325 descr->dmac_cmd_status = 0;
326 descr->result_size = 0;
327 descr->valid_size = 0;
328 descr->data_error = 0;
330 offset = ((unsigned long)descr->skb->data) &
331 (GELIC_NET_RXBUF_ALIGN - 1);
333 skb_reserve(descr->skb, GELIC_NET_RXBUF_ALIGN - offset);
334 /* io-mmu-map the skb */
335 descr->buf_addr = cpu_to_be32(dma_map_single(ctodev(card),
339 if (!descr->buf_addr) {
340 dev_kfree_skb_any(descr->skb);
342 dev_info(ctodev(card),
343 "%s:Could not iommu-map rx buffer\n", __func__);
344 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
347 gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED);
353 * gelic_card_release_rx_chain - free all skb of rx descr
354 * @card: card structure
357 static void gelic_card_release_rx_chain(struct gelic_card *card)
359 struct gelic_descr *descr = card->rx_chain.head;
363 dma_unmap_single(ctodev(card),
364 be32_to_cpu(descr->buf_addr),
368 dev_kfree_skb_any(descr->skb);
370 gelic_descr_set_status(descr,
371 GELIC_DESCR_DMA_NOT_IN_USE);
374 } while (descr != card->rx_chain.head);
378 * gelic_card_fill_rx_chain - fills descriptors/skbs in the rx chains
379 * @card: card structure
381 * fills all descriptors in the rx chain: allocates skbs
382 * and iommu-maps them.
383 * returns 0 on success, < 0 on failure
385 static int gelic_card_fill_rx_chain(struct gelic_card *card)
387 struct gelic_descr *descr = card->rx_chain.head;
392 ret = gelic_descr_prepare_rx(card, descr);
397 } while (descr != card->rx_chain.head);
401 gelic_card_release_rx_chain(card);
406 * gelic_card_alloc_rx_skbs - allocates rx skbs in rx descriptor chains
407 * @card: card structure
409 * returns 0 on success, < 0 on failure
411 static int __devinit gelic_card_alloc_rx_skbs(struct gelic_card *card)
413 struct gelic_descr_chain *chain;
415 chain = &card->rx_chain;
416 ret = gelic_card_fill_rx_chain(card);
417 chain->tail = card->rx_top->prev; /* point to the last */
422 * gelic_descr_release_tx - processes a used tx descriptor
423 * @card: card structure
424 * @descr: descriptor to release
426 * releases a used tx descriptor (unmapping, freeing of skb)
428 static void gelic_descr_release_tx(struct gelic_card *card,
429 struct gelic_descr *descr)
431 struct sk_buff *skb = descr->skb;
433 BUG_ON(!(be32_to_cpu(descr->data_status) & GELIC_DESCR_TX_TAIL));
435 dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr), skb->len,
437 dev_kfree_skb_any(skb);
441 descr->next_descr_addr = 0;
442 descr->result_size = 0;
443 descr->valid_size = 0;
444 descr->data_status = 0;
445 descr->data_error = 0;
448 /* set descr status */
449 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
452 static void gelic_card_stop_queues(struct gelic_card *card)
454 netif_stop_queue(card->netdev[GELIC_PORT_ETHERNET]);
456 if (card->netdev[GELIC_PORT_WIRELESS])
457 netif_stop_queue(card->netdev[GELIC_PORT_WIRELESS]);
459 static void gelic_card_wake_queues(struct gelic_card *card)
461 netif_wake_queue(card->netdev[GELIC_PORT_ETHERNET]);
463 if (card->netdev[GELIC_PORT_WIRELESS])
464 netif_wake_queue(card->netdev[GELIC_PORT_WIRELESS]);
467 * gelic_card_release_tx_chain - processes sent tx descriptors
468 * @card: adapter structure
469 * @stop: net_stop sequence
471 * releases the tx descriptors that gelic has finished with
473 static void gelic_card_release_tx_chain(struct gelic_card *card, int stop)
475 struct gelic_descr_chain *tx_chain;
476 enum gelic_descr_dma_status status;
477 struct net_device *netdev;
480 for (tx_chain = &card->tx_chain;
481 tx_chain->head != tx_chain->tail && tx_chain->tail;
482 tx_chain->tail = tx_chain->tail->next) {
483 status = gelic_descr_get_status(tx_chain->tail);
484 netdev = tx_chain->tail->skb->dev;
486 case GELIC_DESCR_DMA_RESPONSE_ERROR:
487 case GELIC_DESCR_DMA_PROTECTION_ERROR:
488 case GELIC_DESCR_DMA_FORCE_END:
489 if (printk_ratelimit())
490 dev_info(ctodev(card),
491 "%s: forcing end of tx descriptor " \
494 netdev->stats.tx_dropped++;
497 case GELIC_DESCR_DMA_COMPLETE:
498 if (tx_chain->tail->skb) {
499 netdev->stats.tx_packets++;
500 netdev->stats.tx_bytes +=
501 tx_chain->tail->skb->len;
505 case GELIC_DESCR_DMA_CARDOWNED:
506 /* pending tx request */
508 /* any other value (== GELIC_DESCR_DMA_NOT_IN_USE) */
512 gelic_descr_release_tx(card, tx_chain->tail);
516 if (!stop && release)
517 gelic_card_wake_queues(card);
521 * gelic_net_set_multi - sets multicast addresses and promisc flags
522 * @netdev: interface device structure
524 * gelic_net_set_multi configures multicast addresses as needed for the
525 * netdev interface. It also sets up multicast, allmulti and promisc
526 * flags appropriately
528 void gelic_net_set_multi(struct net_device *netdev)
530 struct gelic_card *card = netdev_card(netdev);
531 struct dev_mc_list *mc;
537 /* clear all multicast address */
538 status = lv1_net_remove_multicast_address(bus_id(card), dev_id(card),
541 dev_err(ctodev(card),
542 "lv1_net_remove_multicast_address failed %d\n",
544 /* set broadcast address */
545 status = lv1_net_add_multicast_address(bus_id(card), dev_id(card),
546 GELIC_NET_BROADCAST_ADDR, 0);
548 dev_err(ctodev(card),
549 "lv1_net_add_multicast_address failed, %d\n",
552 if ((netdev->flags & IFF_ALLMULTI) ||
553 (netdev->mc_count > GELIC_NET_MC_COUNT_MAX)) {
554 status = lv1_net_add_multicast_address(bus_id(card),
558 dev_err(ctodev(card),
559 "lv1_net_add_multicast_address failed, %d\n",
564 /* set multicast addresses */
565 for (mc = netdev->mc_list; mc; mc = mc->next) {
568 for (i = 0; i < ETH_ALEN; i++) {
572 status = lv1_net_add_multicast_address(bus_id(card),
576 dev_err(ctodev(card),
577 "lv1_net_add_multicast_address failed, %d\n",
583 * gelic_card_enable_rxdmac - enables the receive DMA controller
584 * @card: card structure
586 * gelic_card_enable_rxdmac enables the DMA controller by setting RX_DMA_EN
587 * in the GDADMACCNTR register
589 static inline void gelic_card_enable_rxdmac(struct gelic_card *card)
594 if (gelic_descr_get_status(card->rx_chain.head) !=
595 GELIC_DESCR_DMA_CARDOWNED) {
596 printk(KERN_ERR "%s: status=%x\n", __func__,
597 be32_to_cpu(card->rx_chain.head->dmac_cmd_status));
598 printk(KERN_ERR "%s: nextphy=%x\n", __func__,
599 be32_to_cpu(card->rx_chain.head->next_descr_addr));
600 printk(KERN_ERR "%s: head=%p\n", __func__,
601 card->rx_chain.head);
604 status = lv1_net_start_rx_dma(bus_id(card), dev_id(card),
605 card->rx_chain.head->bus_addr, 0);
607 dev_info(ctodev(card),
608 "lv1_net_start_rx_dma failed, status=%d\n", status);
612 * gelic_card_disable_rxdmac - disables the receive DMA controller
613 * @card: card structure
615 * gelic_card_disable_rxdmac terminates processing on the DMA controller by
616 * turing off DMA and issueing a force end
618 static inline void gelic_card_disable_rxdmac(struct gelic_card *card)
622 /* this hvc blocks until the DMA in progress really stopped */
623 status = lv1_net_stop_rx_dma(bus_id(card), dev_id(card), 0);
625 dev_err(ctodev(card),
626 "lv1_net_stop_rx_dma faild, %d\n", status);
630 * gelic_card_disable_txdmac - disables the transmit DMA controller
631 * @card: card structure
633 * gelic_card_disable_txdmac terminates processing on the DMA controller by
634 * turing off DMA and issueing a force end
636 static inline void gelic_card_disable_txdmac(struct gelic_card *card)
640 /* this hvc blocks until the DMA in progress really stopped */
641 status = lv1_net_stop_tx_dma(bus_id(card), dev_id(card), 0);
643 dev_err(ctodev(card),
644 "lv1_net_stop_tx_dma faild, status=%d\n", status);
648 * gelic_net_stop - called upon ifconfig down
649 * @netdev: interface device structure
653 int gelic_net_stop(struct net_device *netdev)
655 struct gelic_card *card;
657 pr_debug("%s: start\n", __func__);
659 netif_stop_queue(netdev);
660 netif_carrier_off(netdev);
662 card = netdev_card(netdev);
663 gelic_card_down(card);
665 pr_debug("%s: done\n", __func__);
670 * gelic_card_get_next_tx_descr - returns the next available tx descriptor
671 * @card: device structure to get descriptor from
673 * returns the address of the next descriptor, or NULL if not available.
675 static struct gelic_descr *
676 gelic_card_get_next_tx_descr(struct gelic_card *card)
678 if (!card->tx_chain.head)
680 /* see if the next descriptor is free */
681 if (card->tx_chain.tail != card->tx_chain.head->next &&
682 gelic_descr_get_status(card->tx_chain.head) ==
683 GELIC_DESCR_DMA_NOT_IN_USE)
684 return card->tx_chain.head;
691 * gelic_net_set_txdescr_cmdstat - sets the tx descriptor command field
692 * @descr: descriptor structure to fill out
693 * @skb: packet to consider
695 * fills out the command and status field of the descriptor structure,
696 * depending on hardware checksum settings. This function assumes a wmb()
697 * has executed before.
699 static void gelic_descr_set_tx_cmdstat(struct gelic_descr *descr,
702 if (skb->ip_summed != CHECKSUM_PARTIAL)
703 descr->dmac_cmd_status =
704 cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM |
705 GELIC_DESCR_TX_DMA_FRAME_TAIL);
708 * if yes: tcp? udp? */
709 if (skb->protocol == htons(ETH_P_IP)) {
710 if (ip_hdr(skb)->protocol == IPPROTO_TCP)
711 descr->dmac_cmd_status =
712 cpu_to_be32(GELIC_DESCR_DMA_CMD_TCP_CHKSUM |
713 GELIC_DESCR_TX_DMA_FRAME_TAIL);
715 else if (ip_hdr(skb)->protocol == IPPROTO_UDP)
716 descr->dmac_cmd_status =
717 cpu_to_be32(GELIC_DESCR_DMA_CMD_UDP_CHKSUM |
718 GELIC_DESCR_TX_DMA_FRAME_TAIL);
720 * the stack should checksum non-tcp and non-udp
721 * packets on his own: NETIF_F_IP_CSUM
723 descr->dmac_cmd_status =
724 cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM |
725 GELIC_DESCR_TX_DMA_FRAME_TAIL);
730 static inline struct sk_buff *gelic_put_vlan_tag(struct sk_buff *skb,
733 struct vlan_ethhdr *veth;
734 static unsigned int c;
736 if (skb_headroom(skb) < VLAN_HLEN) {
737 struct sk_buff *sk_tmp = skb;
738 pr_debug("%s: hd=%d c=%ud\n", __func__, skb_headroom(skb), c);
739 skb = skb_realloc_headroom(sk_tmp, VLAN_HLEN);
742 dev_kfree_skb_any(sk_tmp);
744 veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN);
746 /* Move the mac addresses to the top of buffer */
747 memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN);
749 veth->h_vlan_proto = cpu_to_be16(ETH_P_8021Q);
750 veth->h_vlan_TCI = htons(tag);
756 * gelic_descr_prepare_tx - setup a descriptor for sending packets
757 * @card: card structure
758 * @descr: descriptor structure
759 * @skb: packet to use
761 * returns 0 on success, <0 on failure.
764 static int gelic_descr_prepare_tx(struct gelic_card *card,
765 struct gelic_descr *descr,
770 if (card->vlan_required) {
771 struct sk_buff *skb_tmp;
772 enum gelic_port_type type;
774 type = netdev_port(skb->dev)->type;
775 skb_tmp = gelic_put_vlan_tag(skb,
776 card->vlan[type].tx);
782 buf = dma_map_single(ctodev(card), skb->data, skb->len, DMA_TO_DEVICE);
785 dev_err(ctodev(card),
786 "dma map 2 failed (%p, %i). Dropping packet\n",
787 skb->data, skb->len);
791 descr->buf_addr = cpu_to_be32(buf);
792 descr->buf_size = cpu_to_be32(skb->len);
794 descr->data_status = 0;
795 descr->next_descr_addr = 0; /* terminate hw descr */
796 gelic_descr_set_tx_cmdstat(descr, skb);
798 /* bump free descriptor pointer */
799 card->tx_chain.head = descr->next;
804 * gelic_card_kick_txdma - enables TX DMA processing
805 * @card: card structure
806 * @descr: descriptor address to enable TX processing at
809 static int gelic_card_kick_txdma(struct gelic_card *card,
810 struct gelic_descr *descr)
814 if (card->tx_dma_progress)
817 if (gelic_descr_get_status(descr) == GELIC_DESCR_DMA_CARDOWNED) {
818 card->tx_dma_progress = 1;
819 status = lv1_net_start_tx_dma(bus_id(card), dev_id(card),
822 dev_info(ctodev(card), "lv1_net_start_txdma failed," \
823 "status=%d\n", status);
829 * gelic_net_xmit - transmits a frame over the device
830 * @skb: packet to send out
831 * @netdev: interface device structure
833 * returns 0 on success, <0 on failure
835 int gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
837 struct gelic_card *card = netdev_card(netdev);
838 struct gelic_descr *descr;
842 spin_lock_irqsave(&card->tx_lock, flags);
844 gelic_card_release_tx_chain(card, 0);
846 descr = gelic_card_get_next_tx_descr(card);
849 * no more descriptors free
851 gelic_card_stop_queues(card);
852 spin_unlock_irqrestore(&card->tx_lock, flags);
853 return NETDEV_TX_BUSY;
856 result = gelic_descr_prepare_tx(card, descr, skb);
859 * DMA map failed. As chanses are that failure
860 * would continue, just release skb and return
862 netdev->stats.tx_dropped++;
863 dev_kfree_skb_any(skb);
864 spin_unlock_irqrestore(&card->tx_lock, flags);
868 * link this prepared descriptor to previous one
869 * to achieve high performance
871 descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr);
873 * as hardware descriptor is modified in the above lines,
874 * ensure that the hardware sees it
877 if (gelic_card_kick_txdma(card, descr)) {
880 * release descriptors which were just prepared
882 netdev->stats.tx_dropped++;
883 gelic_descr_release_tx(card, descr);
884 gelic_descr_release_tx(card, descr->next);
885 card->tx_chain.tail = descr->next->next;
886 dev_info(ctodev(card), "%s: kick failure\n", __func__);
888 /* OK, DMA started/reserved */
889 netdev->trans_start = jiffies;
892 spin_unlock_irqrestore(&card->tx_lock, flags);
897 * gelic_net_pass_skb_up - takes an skb from a descriptor and passes it on
898 * @descr: descriptor to process
899 * @card: card structure
900 * @netdev: net_device structure to be passed packet
902 * iommu-unmaps the skb, fills out skb structure and passes the data to the
903 * stack. The descriptor state is not changed.
905 static void gelic_net_pass_skb_up(struct gelic_descr *descr,
906 struct gelic_card *card,
907 struct net_device *netdev)
910 struct sk_buff *skb = descr->skb;
911 u32 data_status, data_error;
913 data_status = be32_to_cpu(descr->data_status);
914 data_error = be32_to_cpu(descr->data_error);
915 /* unmap skb buffer */
916 dma_unmap_single(ctodev(card), be32_to_cpu(descr->buf_addr),
920 skb_put(skb, be32_to_cpu(descr->valid_size)?
921 be32_to_cpu(descr->valid_size) :
922 be32_to_cpu(descr->result_size));
923 if (!descr->valid_size)
924 dev_info(ctodev(card), "buffer full %x %x %x\n",
925 be32_to_cpu(descr->result_size),
926 be32_to_cpu(descr->buf_size),
927 be32_to_cpu(descr->dmac_cmd_status));
931 * the card put 2 bytes vlan tag in front
932 * of the ethernet frame
935 skb->protocol = eth_type_trans(skb, netdev);
937 /* checksum offload */
939 if ((data_status & GELIC_DESCR_DATA_STATUS_CHK_MASK) &&
940 (!(data_error & GELIC_DESCR_DATA_ERROR_CHK_MASK)))
941 skb->ip_summed = CHECKSUM_UNNECESSARY;
943 skb->ip_summed = CHECKSUM_NONE;
945 skb->ip_summed = CHECKSUM_NONE;
947 /* update netdevice statistics */
948 netdev->stats.rx_packets++;
949 netdev->stats.rx_bytes += skb->len;
951 /* pass skb up to stack */
952 netif_receive_skb(skb);
956 * gelic_card_decode_one_descr - processes an rx descriptor
957 * @card: card structure
959 * returns 1 if a packet has been sent to the stack, otherwise 0
961 * processes an rx descriptor by iommu-unmapping the data buffer and passing
962 * the packet up to the stack
964 static int gelic_card_decode_one_descr(struct gelic_card *card)
966 enum gelic_descr_dma_status status;
967 struct gelic_descr_chain *chain = &card->rx_chain;
968 struct gelic_descr *descr = chain->head;
969 struct net_device *netdev = NULL;
970 int dmac_chain_ended;
972 status = gelic_descr_get_status(descr);
973 /* is this descriptor terminated with next_descr == NULL? */
975 be32_to_cpu(descr->dmac_cmd_status) &
976 GELIC_DESCR_RX_DMA_CHAIN_END;
978 if (status == GELIC_DESCR_DMA_CARDOWNED)
981 if (status == GELIC_DESCR_DMA_NOT_IN_USE) {
982 dev_dbg(ctodev(card), "dormant descr? %p\n", descr);
986 /* netdevice select */
987 if (card->vlan_required) {
990 vid = *(u16 *)(descr->skb->data) & VLAN_VID_MASK;
991 for (i = 0; i < GELIC_PORT_MAX; i++) {
992 if (card->vlan[i].rx == vid) {
993 netdev = card->netdev[i];
997 if (GELIC_PORT_MAX <= i) {
998 pr_info("%s: unknown packet vid=%x\n", __func__, vid);
1002 netdev = card->netdev[GELIC_PORT_ETHERNET];
1004 if ((status == GELIC_DESCR_DMA_RESPONSE_ERROR) ||
1005 (status == GELIC_DESCR_DMA_PROTECTION_ERROR) ||
1006 (status == GELIC_DESCR_DMA_FORCE_END)) {
1007 dev_info(ctodev(card), "dropping RX descriptor with state %x\n",
1009 netdev->stats.rx_dropped++;
1013 if (status == GELIC_DESCR_DMA_BUFFER_FULL) {
1015 * Buffer full would occur if and only if
1016 * the frame length was longer than the size of this
1017 * descriptor's buffer. If the frame length was equal
1018 * to or shorter than buffer'size, FRAME_END condition
1020 * Anyway this frame was longer than the MTU,
1023 dev_info(ctodev(card), "overlength frame\n");
1027 * descriptoers any other than FRAME_END here should
1028 * be treated as error.
1030 if (status != GELIC_DESCR_DMA_FRAME_END) {
1031 dev_dbg(ctodev(card), "RX descriptor with state %x\n",
1036 /* ok, we've got a packet in descr */
1037 gelic_net_pass_skb_up(descr, card, netdev);
1040 * So that always DMAC can see the end
1041 * of the descriptor chain to avoid
1042 * from unwanted DMAC overrun.
1044 descr->next_descr_addr = 0;
1046 /* change the descriptor state: */
1047 gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE);
1050 * this call can fail, but for now, just leave this
1051 * decriptor without skb
1053 gelic_descr_prepare_rx(card, descr);
1055 chain->tail = descr;
1056 chain->head = descr->next;
1059 * Set this descriptor the end of the chain.
1061 descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr);
1064 * If dmac chain was met, DMAC stopped.
1067 if (dmac_chain_ended) {
1068 card->rx_dma_restart_required = 1;
1069 dev_dbg(ctodev(card), "reenable rx dma scheduled\n");
1076 * gelic_net_poll - NAPI poll function called by the stack to return packets
1077 * @napi: napi structure
1078 * @budget: number of packets we can pass to the stack at most
1080 * returns the number of the processed packets
1083 static int gelic_net_poll(struct napi_struct *napi, int budget)
1085 struct gelic_card *card = container_of(napi, struct gelic_card, napi);
1086 int packets_done = 0;
1088 while (packets_done < budget) {
1089 if (!gelic_card_decode_one_descr(card))
1095 if (packets_done < budget) {
1096 napi_complete(napi);
1097 gelic_card_rx_irq_on(card);
1099 return packets_done;
1102 * gelic_net_change_mtu - changes the MTU of an interface
1103 * @netdev: interface device structure
1104 * @new_mtu: new MTU value
1106 * returns 0 on success, <0 on failure
1108 int gelic_net_change_mtu(struct net_device *netdev, int new_mtu)
1110 /* no need to re-alloc skbs or so -- the max mtu is about 2.3k
1111 * and mtu is outbound only anyway */
1112 if ((new_mtu < GELIC_NET_MIN_MTU) ||
1113 (new_mtu > GELIC_NET_MAX_MTU)) {
1116 netdev->mtu = new_mtu;
1121 * gelic_card_interrupt - event handler for gelic_net
1123 static irqreturn_t gelic_card_interrupt(int irq, void *ptr)
1125 unsigned long flags;
1126 struct gelic_card *card = ptr;
1129 status = card->irq_status;
1134 status &= card->irq_mask;
1136 if (card->rx_dma_restart_required) {
1137 card->rx_dma_restart_required = 0;
1138 gelic_card_enable_rxdmac(card);
1141 if (status & GELIC_CARD_RXINT) {
1142 gelic_card_rx_irq_off(card);
1143 napi_schedule(&card->napi);
1146 if (status & GELIC_CARD_TXINT) {
1147 spin_lock_irqsave(&card->tx_lock, flags);
1148 card->tx_dma_progress = 0;
1149 gelic_card_release_tx_chain(card, 0);
1150 /* kick outstanding tx descriptor if any */
1151 gelic_card_kick_txdma(card, card->tx_chain.tail);
1152 spin_unlock_irqrestore(&card->tx_lock, flags);
1155 /* ether port status changed */
1156 if (status & GELIC_CARD_PORT_STATUS_CHANGED)
1157 gelic_card_get_ether_port_status(card, 1);
1159 #ifdef CONFIG_GELIC_WIRELESS
1160 if (status & (GELIC_CARD_WLAN_EVENT_RECEIVED |
1161 GELIC_CARD_WLAN_COMMAND_COMPLETED))
1162 gelic_wl_interrupt(card->netdev[GELIC_PORT_WIRELESS], status);
1168 #ifdef CONFIG_NET_POLL_CONTROLLER
1170 * gelic_net_poll_controller - artificial interrupt for netconsole etc.
1171 * @netdev: interface device structure
1173 * see Documentation/networking/netconsole.txt
1175 void gelic_net_poll_controller(struct net_device *netdev)
1177 struct gelic_card *card = netdev_card(netdev);
1179 gelic_card_set_irq_mask(card, 0);
1180 gelic_card_interrupt(netdev->irq, netdev);
1181 gelic_card_set_irq_mask(card, card->irq_mask);
1183 #endif /* CONFIG_NET_POLL_CONTROLLER */
1186 * gelic_net_open - called upon ifonfig up
1187 * @netdev: interface device structure
1189 * returns 0 on success, <0 on failure
1191 * gelic_net_open allocates all the descriptors and memory needed for
1192 * operation, sets up multicast list and enables interrupts
1194 int gelic_net_open(struct net_device *netdev)
1196 struct gelic_card *card = netdev_card(netdev);
1198 dev_dbg(ctodev(card), " -> %s %p\n", __func__, netdev);
1200 gelic_card_up(card);
1202 netif_start_queue(netdev);
1203 gelic_card_get_ether_port_status(card, 1);
1205 dev_dbg(ctodev(card), " <- %s\n", __func__);
1209 void gelic_net_get_drvinfo(struct net_device *netdev,
1210 struct ethtool_drvinfo *info)
1212 strncpy(info->driver, DRV_NAME, sizeof(info->driver) - 1);
1213 strncpy(info->version, DRV_VERSION, sizeof(info->version) - 1);
1216 static int gelic_ether_get_settings(struct net_device *netdev,
1217 struct ethtool_cmd *cmd)
1219 struct gelic_card *card = netdev_card(netdev);
1221 gelic_card_get_ether_port_status(card, 0);
1223 if (card->ether_port_status & GELIC_LV1_ETHER_FULL_DUPLEX)
1224 cmd->duplex = DUPLEX_FULL;
1226 cmd->duplex = DUPLEX_HALF;
1228 switch (card->ether_port_status & GELIC_LV1_ETHER_SPEED_MASK) {
1229 case GELIC_LV1_ETHER_SPEED_10:
1230 cmd->speed = SPEED_10;
1232 case GELIC_LV1_ETHER_SPEED_100:
1233 cmd->speed = SPEED_100;
1235 case GELIC_LV1_ETHER_SPEED_1000:
1236 cmd->speed = SPEED_1000;
1239 pr_info("%s: speed unknown\n", __func__);
1240 cmd->speed = SPEED_10;
1244 cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg |
1245 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
1246 SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
1247 SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
1248 cmd->advertising = cmd->supported;
1249 cmd->autoneg = AUTONEG_ENABLE; /* always enabled */
1250 cmd->port = PORT_TP;
1255 u32 gelic_net_get_rx_csum(struct net_device *netdev)
1257 struct gelic_card *card = netdev_card(netdev);
1259 return card->rx_csum;
1262 int gelic_net_set_rx_csum(struct net_device *netdev, u32 data)
1264 struct gelic_card *card = netdev_card(netdev);
1266 card->rx_csum = data;
1270 static void gelic_net_get_wol(struct net_device *netdev,
1271 struct ethtool_wolinfo *wol)
1273 if (0 <= ps3_compare_firmware_version(2, 2, 0))
1274 wol->supported = WAKE_MAGIC;
1278 wol->wolopts = ps3_sys_manager_get_wol() ? wol->supported : 0;
1279 memset(&wol->sopass, 0, sizeof(wol->sopass));
1281 static int gelic_net_set_wol(struct net_device *netdev,
1282 struct ethtool_wolinfo *wol)
1285 struct gelic_card *card;
1288 if (ps3_compare_firmware_version(2, 2, 0) < 0 ||
1289 !capable(CAP_NET_ADMIN))
1292 if (wol->wolopts & ~WAKE_MAGIC)
1295 card = netdev_card(netdev);
1296 if (wol->wolopts & WAKE_MAGIC) {
1297 status = lv1_net_control(bus_id(card), dev_id(card),
1299 GELIC_LV1_WOL_MAGIC_PACKET,
1300 0, GELIC_LV1_WOL_MP_ENABLE,
1303 pr_info("%s: enabling WOL failed %d\n", __func__,
1308 status = lv1_net_control(bus_id(card), dev_id(card),
1310 GELIC_LV1_WOL_ADD_MATCH_ADDR,
1311 0, GELIC_LV1_WOL_MATCH_ALL,
1314 ps3_sys_manager_set_wol(1);
1316 pr_info("%s: enabling WOL filter failed %d\n",
1321 status = lv1_net_control(bus_id(card), dev_id(card),
1323 GELIC_LV1_WOL_MAGIC_PACKET,
1324 0, GELIC_LV1_WOL_MP_DISABLE,
1327 pr_info("%s: disabling WOL failed %d\n", __func__,
1332 status = lv1_net_control(bus_id(card), dev_id(card),
1334 GELIC_LV1_WOL_DELETE_MATCH_ADDR,
1335 0, GELIC_LV1_WOL_MATCH_ALL,
1338 ps3_sys_manager_set_wol(0);
1340 pr_info("%s: removing WOL filter failed %d\n",
1349 static struct ethtool_ops gelic_ether_ethtool_ops = {
1350 .get_drvinfo = gelic_net_get_drvinfo,
1351 .get_settings = gelic_ether_get_settings,
1352 .get_link = ethtool_op_get_link,
1353 .get_tx_csum = ethtool_op_get_tx_csum,
1354 .set_tx_csum = ethtool_op_set_tx_csum,
1355 .get_rx_csum = gelic_net_get_rx_csum,
1356 .set_rx_csum = gelic_net_set_rx_csum,
1357 .get_wol = gelic_net_get_wol,
1358 .set_wol = gelic_net_set_wol,
1362 * gelic_net_tx_timeout_task - task scheduled by the watchdog timeout
1363 * function (to be called not under interrupt status)
1364 * @work: work is context of tx timout task
1366 * called as task when tx hangs, resets interface (if interface is up)
1368 static void gelic_net_tx_timeout_task(struct work_struct *work)
1370 struct gelic_card *card =
1371 container_of(work, struct gelic_card, tx_timeout_task);
1372 struct net_device *netdev = card->netdev[GELIC_PORT_ETHERNET];
1374 dev_info(ctodev(card), "%s:Timed out. Restarting... \n", __func__);
1376 if (!(netdev->flags & IFF_UP))
1379 netif_device_detach(netdev);
1380 gelic_net_stop(netdev);
1382 gelic_net_open(netdev);
1383 netif_device_attach(netdev);
1386 atomic_dec(&card->tx_timeout_task_counter);
1390 * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in.
1391 * @netdev: interface device structure
1393 * called, if tx hangs. Schedules a task that resets the interface
1395 void gelic_net_tx_timeout(struct net_device *netdev)
1397 struct gelic_card *card;
1399 card = netdev_card(netdev);
1400 atomic_inc(&card->tx_timeout_task_counter);
1401 if (netdev->flags & IFF_UP)
1402 schedule_work(&card->tx_timeout_task);
1404 atomic_dec(&card->tx_timeout_task_counter);
1407 static const struct net_device_ops gelic_netdevice_ops = {
1408 .ndo_open = gelic_net_open,
1409 .ndo_stop = gelic_net_stop,
1410 .ndo_start_xmit = gelic_net_xmit,
1411 .ndo_set_multicast_list = gelic_net_set_multi,
1412 .ndo_change_mtu = gelic_net_change_mtu,
1413 .ndo_tx_timeout = gelic_net_tx_timeout,
1414 .ndo_validate_addr = eth_validate_addr,
1415 #ifdef CONFIG_NET_POLL_CONTROLLER
1416 .ndo_poll_controller = gelic_net_poll_controller,
1421 * gelic_ether_setup_netdev_ops - initialization of net_device operations
1422 * @netdev: net_device structure
1424 * fills out function pointers in the net_device structure
1426 static void __devinit gelic_ether_setup_netdev_ops(struct net_device *netdev,
1427 struct napi_struct *napi)
1429 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
1431 netif_napi_add(netdev, napi,
1432 gelic_net_poll, GELIC_NET_NAPI_WEIGHT);
1433 netdev->ethtool_ops = &gelic_ether_ethtool_ops;
1434 netdev->netdev_ops = &gelic_netdevice_ops;
1438 * gelic_ether_setup_netdev - initialization of net_device
1439 * @netdev: net_device structure
1440 * @card: card structure
1442 * Returns 0 on success or <0 on failure
1444 * gelic_ether_setup_netdev initializes the net_device structure
1447 int __devinit gelic_net_setup_netdev(struct net_device *netdev,
1448 struct gelic_card *card)
1453 netdev->features = NETIF_F_IP_CSUM;
1455 status = lv1_net_control(bus_id(card), dev_id(card),
1456 GELIC_LV1_GET_MAC_ADDRESS,
1459 if (status || !is_valid_ether_addr((u8 *)&v1)) {
1460 dev_info(ctodev(card),
1461 "%s:lv1_net_control GET_MAC_ADDR failed %d\n",
1465 memcpy(netdev->dev_addr, &v1, ETH_ALEN);
1467 if (card->vlan_required) {
1468 netdev->hard_header_len += VLAN_HLEN;
1470 * As vlan is internally used,
1471 * we can not receive vlan packets
1473 netdev->features |= NETIF_F_VLAN_CHALLENGED;
1476 status = register_netdev(netdev);
1478 dev_err(ctodev(card), "%s:Couldn't register %s %d\n",
1479 __func__, netdev->name, status);
1482 dev_info(ctodev(card), "%s: MAC addr %pM\n",
1483 netdev->name, netdev->dev_addr);
1489 * gelic_alloc_card_net - allocates net_device and card structure
1491 * returns the card structure or NULL in case of errors
1493 * the card and net_device structures are linked to each other
1495 #define GELIC_ALIGN (32)
1496 static struct gelic_card * __devinit gelic_alloc_card_net(struct net_device **netdev)
1498 struct gelic_card *card;
1499 struct gelic_port *port;
1503 * gelic requires dma descriptor is 32 bytes aligned and
1504 * the hypervisor requires irq_status is 8 bytes aligned.
1506 BUILD_BUG_ON(offsetof(struct gelic_card, irq_status) % 8);
1507 BUILD_BUG_ON(offsetof(struct gelic_card, descr) % 32);
1509 sizeof(struct gelic_card) +
1510 sizeof(struct gelic_descr) * GELIC_NET_RX_DESCRIPTORS +
1511 sizeof(struct gelic_descr) * GELIC_NET_TX_DESCRIPTORS +
1514 p = kzalloc(alloc_size, GFP_KERNEL);
1517 card = PTR_ALIGN(p, GELIC_ALIGN);
1523 *netdev = alloc_etherdev(sizeof(struct gelic_port));
1525 kfree(card->unalign);
1528 port = netdev_priv(*netdev);
1531 port->netdev = *netdev;
1533 port->type = GELIC_PORT_ETHERNET;
1536 card->netdev[GELIC_PORT_ETHERNET] = *netdev;
1538 INIT_WORK(&card->tx_timeout_task, gelic_net_tx_timeout_task);
1539 init_waitqueue_head(&card->waitq);
1540 atomic_set(&card->tx_timeout_task_counter, 0);
1541 mutex_init(&card->updown_lock);
1542 atomic_set(&card->users, 0);
1547 static void __devinit gelic_card_get_vlan_info(struct gelic_card *card)
1556 [GELIC_PORT_ETHERNET] = {
1557 .tx = GELIC_LV1_VLAN_TX_ETHERNET,
1558 .rx = GELIC_LV1_VLAN_RX_ETHERNET
1560 [GELIC_PORT_WIRELESS] = {
1561 .tx = GELIC_LV1_VLAN_TX_WIRELESS,
1562 .rx = GELIC_LV1_VLAN_RX_WIRELESS
1566 for (i = 0; i < ARRAY_SIZE(vlan_id_ix); i++) {
1568 status = lv1_net_control(bus_id(card), dev_id(card),
1569 GELIC_LV1_GET_VLAN_ID,
1572 if (status || !v1) {
1573 if (status != LV1_NO_ENTRY)
1574 dev_dbg(ctodev(card),
1575 "get vlan id for tx(%d) failed(%d)\n",
1576 vlan_id_ix[i].tx, status);
1577 card->vlan[i].tx = 0;
1578 card->vlan[i].rx = 0;
1581 card->vlan[i].tx = (u16)v1;
1584 status = lv1_net_control(bus_id(card), dev_id(card),
1585 GELIC_LV1_GET_VLAN_ID,
1588 if (status || !v1) {
1589 if (status != LV1_NO_ENTRY)
1590 dev_info(ctodev(card),
1591 "get vlan id for rx(%d) failed(%d)\n",
1592 vlan_id_ix[i].rx, status);
1593 card->vlan[i].tx = 0;
1594 card->vlan[i].rx = 0;
1597 card->vlan[i].rx = (u16)v1;
1599 dev_dbg(ctodev(card), "vlan_id[%d] tx=%02x rx=%02x\n",
1600 i, card->vlan[i].tx, card->vlan[i].rx);
1603 if (card->vlan[GELIC_PORT_ETHERNET].tx) {
1604 BUG_ON(!card->vlan[GELIC_PORT_WIRELESS].tx);
1605 card->vlan_required = 1;
1607 card->vlan_required = 0;
1609 /* check wirelss capable firmware */
1610 if (ps3_compare_firmware_version(1, 6, 0) < 0) {
1611 card->vlan[GELIC_PORT_WIRELESS].tx = 0;
1612 card->vlan[GELIC_PORT_WIRELESS].rx = 0;
1615 dev_info(ctodev(card), "internal vlan %s\n",
1616 card->vlan_required? "enabled" : "disabled");
1619 * ps3_gelic_driver_probe - add a device to the control of this driver
1621 static int __devinit ps3_gelic_driver_probe(struct ps3_system_bus_device *dev)
1623 struct gelic_card *card;
1624 struct net_device *netdev;
1627 pr_debug("%s: called\n", __func__);
1628 result = ps3_open_hv_device(dev);
1631 dev_dbg(&dev->core, "%s:ps3_open_hv_device failed\n",
1636 result = ps3_dma_region_create(dev->d_region);
1639 dev_dbg(&dev->core, "%s:ps3_dma_region_create failed(%d)\n",
1641 BUG_ON("check region type");
1642 goto fail_dma_region;
1645 /* alloc card/netdevice */
1646 card = gelic_alloc_card_net(&netdev);
1648 dev_info(&dev->core, "%s:gelic_net_alloc_card failed\n",
1651 goto fail_alloc_card;
1653 ps3_system_bus_set_drvdata(dev, card);
1656 /* get internal vlan info */
1657 gelic_card_get_vlan_info(card);
1659 /* setup interrupt */
1660 result = lv1_net_set_interrupt_status_indicator(bus_id(card),
1662 ps3_mm_phys_to_lpar(__pa(&card->irq_status)),
1667 "%s:set_interrupt_status_indicator failed: %s\n",
1668 __func__, ps3_result(result));
1670 goto fail_status_indicator;
1673 result = ps3_sb_event_receive_port_setup(dev, PS3_BINDING_CPU_ANY,
1677 dev_info(ctodev(card),
1678 "%s:gelic_net_open_device failed (%d)\n",
1681 goto fail_alloc_irq;
1683 result = request_irq(card->irq, gelic_card_interrupt,
1684 IRQF_DISABLED, netdev->name, card);
1687 dev_info(ctodev(card), "%s:request_irq failed (%d)\n",
1689 goto fail_request_irq;
1692 /* setup card structure */
1693 card->irq_mask = GELIC_CARD_RXINT | GELIC_CARD_TXINT |
1694 GELIC_CARD_PORT_STATUS_CHANGED;
1695 card->rx_csum = GELIC_CARD_RX_CSUM_DEFAULT;
1698 if (gelic_card_init_chain(card, &card->tx_chain,
1699 card->descr, GELIC_NET_TX_DESCRIPTORS))
1701 if (gelic_card_init_chain(card, &card->rx_chain,
1702 card->descr + GELIC_NET_TX_DESCRIPTORS,
1703 GELIC_NET_RX_DESCRIPTORS))
1707 card->tx_top = card->tx_chain.head;
1708 card->rx_top = card->rx_chain.head;
1709 dev_dbg(ctodev(card), "descr rx %p, tx %p, size %#lx, num %#x\n",
1710 card->rx_top, card->tx_top, sizeof(struct gelic_descr),
1711 GELIC_NET_RX_DESCRIPTORS);
1712 /* allocate rx skbs */
1713 if (gelic_card_alloc_rx_skbs(card))
1714 goto fail_alloc_skbs;
1716 spin_lock_init(&card->tx_lock);
1717 card->tx_dma_progress = 0;
1719 /* setup net_device structure */
1720 netdev->irq = card->irq;
1721 SET_NETDEV_DEV(netdev, &card->dev->core);
1722 gelic_ether_setup_netdev_ops(netdev, &card->napi);
1723 result = gelic_net_setup_netdev(netdev, card);
1725 dev_dbg(&dev->core, "%s: setup_netdev failed %d",
1727 goto fail_setup_netdev;
1730 #ifdef CONFIG_GELIC_WIRELESS
1731 if (gelic_wl_driver_probe(card)) {
1732 dev_dbg(&dev->core, "%s: WL init failed\n", __func__);
1733 goto fail_setup_netdev;
1736 pr_debug("%s: done\n", __func__);
1741 gelic_card_free_chain(card, card->rx_chain.head);
1743 gelic_card_free_chain(card, card->tx_chain.head);
1745 free_irq(card->irq, card);
1746 netdev->irq = NO_IRQ;
1748 ps3_sb_event_receive_port_destroy(dev, card->irq);
1750 lv1_net_set_interrupt_status_indicator(bus_id(card),
1753 fail_status_indicator:
1754 ps3_system_bus_set_drvdata(dev, NULL);
1755 kfree(netdev_card(netdev)->unalign);
1756 free_netdev(netdev);
1758 ps3_dma_region_free(dev->d_region);
1760 ps3_close_hv_device(dev);
1766 * ps3_gelic_driver_remove - remove a device from the control of this driver
1769 static int ps3_gelic_driver_remove(struct ps3_system_bus_device *dev)
1771 struct gelic_card *card = ps3_system_bus_get_drvdata(dev);
1772 struct net_device *netdev0;
1773 pr_debug("%s: called\n", __func__);
1775 #ifdef CONFIG_GELIC_WIRELESS
1776 gelic_wl_driver_remove(card);
1778 /* stop interrupt */
1779 gelic_card_set_irq_mask(card, 0);
1781 /* turn off DMA, force end */
1782 gelic_card_disable_rxdmac(card);
1783 gelic_card_disable_txdmac(card);
1785 /* release chains */
1786 gelic_card_release_tx_chain(card, 1);
1787 gelic_card_release_rx_chain(card);
1789 gelic_card_free_chain(card, card->tx_top);
1790 gelic_card_free_chain(card, card->rx_top);
1792 netdev0 = card->netdev[GELIC_PORT_ETHERNET];
1793 /* disconnect event port */
1794 free_irq(card->irq, card);
1795 netdev0->irq = NO_IRQ;
1796 ps3_sb_event_receive_port_destroy(card->dev, card->irq);
1798 wait_event(card->waitq,
1799 atomic_read(&card->tx_timeout_task_counter) == 0);
1801 lv1_net_set_interrupt_status_indicator(bus_id(card), dev_id(card),
1804 unregister_netdev(netdev0);
1805 kfree(netdev_card(netdev0)->unalign);
1806 free_netdev(netdev0);
1808 ps3_system_bus_set_drvdata(dev, NULL);
1810 ps3_dma_region_free(dev->d_region);
1812 ps3_close_hv_device(dev);
1814 pr_debug("%s: done\n", __func__);
1818 static struct ps3_system_bus_driver ps3_gelic_driver = {
1819 .match_id = PS3_MATCH_ID_GELIC,
1820 .probe = ps3_gelic_driver_probe,
1821 .remove = ps3_gelic_driver_remove,
1822 .shutdown = ps3_gelic_driver_remove,
1823 .core.name = "ps3_gelic_driver",
1824 .core.owner = THIS_MODULE,
1827 static int __init ps3_gelic_driver_init (void)
1829 return firmware_has_feature(FW_FEATURE_PS3_LV1)
1830 ? ps3_system_bus_driver_register(&ps3_gelic_driver)
1834 static void __exit ps3_gelic_driver_exit (void)
1836 ps3_system_bus_driver_unregister(&ps3_gelic_driver);
1839 module_init(ps3_gelic_driver_init);
1840 module_exit(ps3_gelic_driver_exit);
1842 MODULE_ALIAS(PS3_MODULE_ALIAS_GELIC);