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"
50 #define DRV_NAME "Gelic Network Driver"
51 #define DRV_VERSION "1.0"
53 MODULE_AUTHOR("SCE Inc.");
54 MODULE_DESCRIPTION("Gelic Network driver");
55 MODULE_LICENSE("GPL");
57 static inline struct device
*ctodev(struct gelic_net_card
*card
)
59 return &card
->dev
->core
;
61 static inline u64
bus_id(struct gelic_net_card
*card
)
63 return card
->dev
->bus_id
;
65 static inline u64
dev_id(struct gelic_net_card
*card
)
67 return card
->dev
->dev_id
;
71 static int gelic_net_set_irq_mask(struct gelic_net_card
*card
, u64 mask
)
75 status
= lv1_net_set_interrupt_mask(bus_id(card
), dev_id(card
),
78 dev_info(ctodev(card
),
79 "lv1_net_set_interrupt_mask failed %d\n", status
);
82 static inline void gelic_net_rx_irq_on(struct gelic_net_card
*card
)
84 gelic_net_set_irq_mask(card
, card
->ghiintmask
| GELIC_NET_RXINT
);
86 static inline void gelic_net_rx_irq_off(struct gelic_net_card
*card
)
88 gelic_net_set_irq_mask(card
, card
->ghiintmask
& ~GELIC_NET_RXINT
);
91 * gelic_net_get_descr_status -- returns the status of a descriptor
92 * @descr: descriptor to look at
94 * returns the status as in the dmac_cmd_status field of the descriptor
96 static enum gelic_net_descr_status
97 gelic_net_get_descr_status(struct gelic_net_descr
*descr
)
101 cmd_status
= be32_to_cpu(descr
->dmac_cmd_status
);
102 cmd_status
>>= GELIC_NET_DESCR_IND_PROC_SHIFT
;
107 * gelic_net_set_descr_status -- sets the status of a descriptor
108 * @descr: descriptor to change
109 * @status: status to set in the descriptor
111 * changes the status to the specified value. Doesn't change other bits
114 static void gelic_net_set_descr_status(struct gelic_net_descr
*descr
,
115 enum gelic_net_descr_status status
)
119 /* read the status */
120 cmd_status
= be32_to_cpu(descr
->dmac_cmd_status
);
121 /* clean the upper 4 bits */
122 cmd_status
&= GELIC_NET_DESCR_IND_PROC_MASKO
;
123 /* add the status to it */
124 cmd_status
|= ((u32
)status
) << GELIC_NET_DESCR_IND_PROC_SHIFT
;
125 /* and write it back */
126 descr
->dmac_cmd_status
= cpu_to_be32(cmd_status
);
128 * dma_cmd_status field is used to indicate whether the descriptor
130 * Usually caller of this function wants to inform that to the
131 * hardware, so we assure here the hardware sees the change.
137 * gelic_net_free_chain - free descriptor chain
138 * @card: card structure
139 * @descr_in: address of desc
141 static void gelic_net_free_chain(struct gelic_net_card
*card
,
142 struct gelic_net_descr
*descr_in
)
144 struct gelic_net_descr
*descr
;
146 for (descr
= descr_in
; descr
&& descr
->bus_addr
; descr
= descr
->next
) {
147 dma_unmap_single(ctodev(card
), descr
->bus_addr
,
148 GELIC_NET_DESCR_SIZE
, DMA_BIDIRECTIONAL
);
154 * gelic_net_init_chain - links descriptor chain
155 * @card: card structure
156 * @chain: address of chain
157 * @start_descr: address of descriptor array
158 * @no: number of descriptors
160 * we manage a circular list that mirrors the hardware structure,
161 * except that the hardware uses bus addresses.
163 * returns 0 on success, <0 on failure
165 static int gelic_net_init_chain(struct gelic_net_card
*card
,
166 struct gelic_net_descr_chain
*chain
,
167 struct gelic_net_descr
*start_descr
, int no
)
170 struct gelic_net_descr
*descr
;
173 memset(descr
, 0, sizeof(*descr
) * no
);
175 /* set up the hardware pointers in each descriptor */
176 for (i
= 0; i
< no
; i
++, descr
++) {
177 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
179 dma_map_single(ctodev(card
), descr
,
180 GELIC_NET_DESCR_SIZE
,
183 if (!descr
->bus_addr
)
186 descr
->next
= descr
+ 1;
187 descr
->prev
= descr
- 1;
189 /* make them as ring */
190 (descr
- 1)->next
= start_descr
;
191 start_descr
->prev
= (descr
- 1);
193 /* chain bus addr of hw descriptor */
195 for (i
= 0; i
< no
; i
++, descr
++) {
196 descr
->next_descr_addr
= cpu_to_be32(descr
->next
->bus_addr
);
199 chain
->head
= start_descr
;
200 chain
->tail
= start_descr
;
202 /* do not chain last hw descriptor */
203 (descr
- 1)->next_descr_addr
= 0;
208 for (i
--, descr
--; 0 <= i
; i
--, descr
--)
210 dma_unmap_single(ctodev(card
), descr
->bus_addr
,
211 GELIC_NET_DESCR_SIZE
,
217 * gelic_net_prepare_rx_descr - reinitializes a rx descriptor
218 * @card: card structure
219 * @descr: descriptor to re-init
221 * return 0 on succes, <0 on failure
223 * allocates a new rx skb, iommu-maps it and attaches it to the descriptor.
224 * Activate the descriptor state-wise
226 static int gelic_net_prepare_rx_descr(struct gelic_net_card
*card
,
227 struct gelic_net_descr
*descr
)
230 unsigned int bufsize
;
232 if (gelic_net_get_descr_status(descr
) != GELIC_NET_DESCR_NOT_IN_USE
) {
233 dev_info(ctodev(card
), "%s: ERROR status \n", __func__
);
235 /* we need to round up the buffer size to a multiple of 128 */
236 bufsize
= ALIGN(GELIC_NET_MAX_MTU
, GELIC_NET_RXBUF_ALIGN
);
238 /* and we need to have it 128 byte aligned, therefore we allocate a
240 descr
->skb
= netdev_alloc_skb(card
->netdev
,
241 bufsize
+ GELIC_NET_RXBUF_ALIGN
- 1);
243 descr
->buf_addr
= 0; /* tell DMAC don't touch memory */
244 dev_info(ctodev(card
),
245 "%s:allocate skb failed !!\n", __func__
);
248 descr
->buf_size
= cpu_to_be32(bufsize
);
249 descr
->dmac_cmd_status
= 0;
250 descr
->result_size
= 0;
251 descr
->valid_size
= 0;
252 descr
->data_error
= 0;
254 offset
= ((unsigned long)descr
->skb
->data
) &
255 (GELIC_NET_RXBUF_ALIGN
- 1);
257 skb_reserve(descr
->skb
, GELIC_NET_RXBUF_ALIGN
- offset
);
258 /* io-mmu-map the skb */
259 descr
->buf_addr
= cpu_to_be32(dma_map_single(ctodev(card
),
263 if (!descr
->buf_addr
) {
264 dev_kfree_skb_any(descr
->skb
);
266 dev_info(ctodev(card
),
267 "%s:Could not iommu-map rx buffer\n", __func__
);
268 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
271 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_CARDOWNED
);
277 * gelic_net_release_rx_chain - free all skb of rx descr
278 * @card: card structure
281 static void gelic_net_release_rx_chain(struct gelic_net_card
*card
)
283 struct gelic_net_descr
*descr
= card
->rx_chain
.head
;
287 dma_unmap_single(ctodev(card
),
288 be32_to_cpu(descr
->buf_addr
),
292 dev_kfree_skb_any(descr
->skb
);
294 gelic_net_set_descr_status(descr
,
295 GELIC_NET_DESCR_NOT_IN_USE
);
298 } while (descr
!= card
->rx_chain
.head
);
302 * gelic_net_fill_rx_chain - fills descriptors/skbs in the rx chains
303 * @card: card structure
305 * fills all descriptors in the rx chain: allocates skbs
306 * and iommu-maps them.
307 * returns 0 on success, <0 on failure
309 static int gelic_net_fill_rx_chain(struct gelic_net_card
*card
)
311 struct gelic_net_descr
*descr
= card
->rx_chain
.head
;
316 ret
= gelic_net_prepare_rx_descr(card
, descr
);
321 } while (descr
!= card
->rx_chain
.head
);
325 gelic_net_release_rx_chain(card
);
330 * gelic_net_alloc_rx_skbs - allocates rx skbs in rx descriptor chains
331 * @card: card structure
333 * returns 0 on success, <0 on failure
335 static int gelic_net_alloc_rx_skbs(struct gelic_net_card
*card
)
337 struct gelic_net_descr_chain
*chain
;
339 chain
= &card
->rx_chain
;
340 ret
= gelic_net_fill_rx_chain(card
);
341 chain
->head
= card
->rx_top
->prev
; /* point to the last */
346 * gelic_net_release_tx_descr - processes a used tx descriptor
347 * @card: card structure
348 * @descr: descriptor to release
350 * releases a used tx descriptor (unmapping, freeing of skb)
352 static void gelic_net_release_tx_descr(struct gelic_net_card
*card
,
353 struct gelic_net_descr
*descr
)
355 struct sk_buff
*skb
= descr
->skb
;
357 BUG_ON(!(be32_to_cpu(descr
->data_status
) &
358 (1 << GELIC_NET_TXDESC_TAIL
)));
360 dma_unmap_single(ctodev(card
),
361 be32_to_cpu(descr
->buf_addr
), skb
->len
, DMA_TO_DEVICE
);
362 dev_kfree_skb_any(skb
);
366 descr
->next_descr_addr
= 0;
367 descr
->result_size
= 0;
368 descr
->valid_size
= 0;
369 descr
->data_status
= 0;
370 descr
->data_error
= 0;
373 /* set descr status */
374 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
378 * gelic_net_release_tx_chain - processes sent tx descriptors
379 * @card: adapter structure
380 * @stop: net_stop sequence
382 * releases the tx descriptors that gelic has finished with
384 static void gelic_net_release_tx_chain(struct gelic_net_card
*card
, int stop
)
386 struct gelic_net_descr_chain
*tx_chain
;
387 enum gelic_net_descr_status status
;
390 for (tx_chain
= &card
->tx_chain
;
391 tx_chain
->head
!= tx_chain
->tail
&& tx_chain
->tail
;
392 tx_chain
->tail
= tx_chain
->tail
->next
) {
393 status
= gelic_net_get_descr_status(tx_chain
->tail
);
395 case GELIC_NET_DESCR_RESPONSE_ERROR
:
396 case GELIC_NET_DESCR_PROTECTION_ERROR
:
397 case GELIC_NET_DESCR_FORCE_END
:
398 if (printk_ratelimit())
399 dev_info(ctodev(card
),
400 "%s: forcing end of tx descriptor " \
403 card
->netdev
->stats
.tx_dropped
++;
406 case GELIC_NET_DESCR_COMPLETE
:
407 if (tx_chain
->tail
->skb
) {
408 card
->netdev
->stats
.tx_packets
++;
409 card
->netdev
->stats
.tx_bytes
+=
410 tx_chain
->tail
->skb
->len
;
414 case GELIC_NET_DESCR_CARDOWNED
:
415 /* pending tx request */
417 /* any other value (== GELIC_NET_DESCR_NOT_IN_USE) */
421 gelic_net_release_tx_descr(card
, tx_chain
->tail
);
425 if (!stop
&& release
)
426 netif_wake_queue(card
->netdev
);
430 * gelic_net_set_multi - sets multicast addresses and promisc flags
431 * @netdev: interface device structure
433 * gelic_net_set_multi configures multicast addresses as needed for the
434 * netdev interface. It also sets up multicast, allmulti and promisc
435 * flags appropriately
437 static void gelic_net_set_multi(struct net_device
*netdev
)
439 struct gelic_net_card
*card
= netdev_priv(netdev
);
440 struct dev_mc_list
*mc
;
446 /* clear all multicast address */
447 status
= lv1_net_remove_multicast_address(bus_id(card
), dev_id(card
),
450 dev_err(ctodev(card
),
451 "lv1_net_remove_multicast_address failed %d\n",
453 /* set broadcast address */
454 status
= lv1_net_add_multicast_address(bus_id(card
), dev_id(card
),
455 GELIC_NET_BROADCAST_ADDR
, 0);
457 dev_err(ctodev(card
),
458 "lv1_net_add_multicast_address failed, %d\n",
461 if (netdev
->flags
& IFF_ALLMULTI
462 || netdev
->mc_count
> GELIC_NET_MC_COUNT_MAX
) { /* list max */
463 status
= lv1_net_add_multicast_address(bus_id(card
),
467 dev_err(ctodev(card
),
468 "lv1_net_add_multicast_address failed, %d\n",
473 /* set multicast address */
474 for (mc
= netdev
->mc_list
; mc
; mc
= mc
->next
) {
477 for (i
= 0; i
< ETH_ALEN
; i
++) {
481 status
= lv1_net_add_multicast_address(bus_id(card
),
485 dev_err(ctodev(card
),
486 "lv1_net_add_multicast_address failed, %d\n",
492 * gelic_net_enable_rxdmac - enables the receive DMA controller
493 * @card: card structure
495 * gelic_net_enable_rxdmac enables the DMA controller by setting RX_DMA_EN
496 * in the GDADMACCNTR register
498 static inline void gelic_net_enable_rxdmac(struct gelic_net_card
*card
)
502 status
= lv1_net_start_rx_dma(bus_id(card
), dev_id(card
),
503 card
->rx_chain
.tail
->bus_addr
, 0);
505 dev_info(ctodev(card
),
506 "lv1_net_start_rx_dma failed, status=%d\n", status
);
510 * gelic_net_disable_rxdmac - disables the receive DMA controller
511 * @card: card structure
513 * gelic_net_disable_rxdmac terminates processing on the DMA controller by
514 * turing off DMA and issueing a force end
516 static inline void gelic_net_disable_rxdmac(struct gelic_net_card
*card
)
520 /* this hvc blocks until the DMA in progress really stopped */
521 status
= lv1_net_stop_rx_dma(bus_id(card
), dev_id(card
), 0);
523 dev_err(ctodev(card
),
524 "lv1_net_stop_rx_dma faild, %d\n", status
);
528 * gelic_net_disable_txdmac - disables the transmit DMA controller
529 * @card: card structure
531 * gelic_net_disable_txdmac terminates processing on the DMA controller by
532 * turing off DMA and issueing a force end
534 static inline void gelic_net_disable_txdmac(struct gelic_net_card
*card
)
538 /* this hvc blocks until the DMA in progress really stopped */
539 status
= lv1_net_stop_tx_dma(bus_id(card
), dev_id(card
), 0);
541 dev_err(ctodev(card
),
542 "lv1_net_stop_tx_dma faild, status=%d\n", status
);
546 * gelic_net_stop - called upon ifconfig down
547 * @netdev: interface device structure
551 static int gelic_net_stop(struct net_device
*netdev
)
553 struct gelic_net_card
*card
= netdev_priv(netdev
);
555 napi_disable(&card
->napi
);
556 netif_stop_queue(netdev
);
558 /* turn off DMA, force end */
559 gelic_net_disable_rxdmac(card
);
560 gelic_net_disable_txdmac(card
);
562 gelic_net_set_irq_mask(card
, 0);
564 /* disconnect event port */
565 free_irq(card
->netdev
->irq
, card
->netdev
);
566 ps3_sb_event_receive_port_destroy(card
->dev
, card
->netdev
->irq
);
567 card
->netdev
->irq
= NO_IRQ
;
569 netif_carrier_off(netdev
);
572 gelic_net_release_tx_chain(card
, 1);
573 gelic_net_release_rx_chain(card
);
575 gelic_net_free_chain(card
, card
->tx_top
);
576 gelic_net_free_chain(card
, card
->rx_top
);
582 * gelic_net_get_next_tx_descr - returns the next available tx descriptor
583 * @card: device structure to get descriptor from
585 * returns the address of the next descriptor, or NULL if not available.
587 static struct gelic_net_descr
*
588 gelic_net_get_next_tx_descr(struct gelic_net_card
*card
)
590 if (!card
->tx_chain
.head
)
592 /* see if the next descriptor is free */
593 if (card
->tx_chain
.tail
!= card
->tx_chain
.head
->next
&&
594 gelic_net_get_descr_status(card
->tx_chain
.head
) ==
595 GELIC_NET_DESCR_NOT_IN_USE
)
596 return card
->tx_chain
.head
;
603 * gelic_net_set_txdescr_cmdstat - sets the tx descriptor command field
604 * @descr: descriptor structure to fill out
605 * @skb: packet to consider
607 * fills out the command and status field of the descriptor structure,
608 * depending on hardware checksum settings. This function assumes a wmb()
609 * has executed before.
611 static void gelic_net_set_txdescr_cmdstat(struct gelic_net_descr
*descr
,
614 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
615 descr
->dmac_cmd_status
=
616 cpu_to_be32(GELIC_NET_DMAC_CMDSTAT_NOCS
|
617 GELIC_NET_DMAC_CMDSTAT_END_FRAME
);
620 * if yes: tcp? udp? */
621 if (skb
->protocol
== htons(ETH_P_IP
)) {
622 if (ip_hdr(skb
)->protocol
== IPPROTO_TCP
)
623 descr
->dmac_cmd_status
=
624 cpu_to_be32(GELIC_NET_DMAC_CMDSTAT_TCPCS
|
625 GELIC_NET_DMAC_CMDSTAT_END_FRAME
);
627 else if (ip_hdr(skb
)->protocol
== IPPROTO_UDP
)
628 descr
->dmac_cmd_status
=
629 cpu_to_be32(GELIC_NET_DMAC_CMDSTAT_UDPCS
|
630 GELIC_NET_DMAC_CMDSTAT_END_FRAME
);
632 * the stack should checksum non-tcp and non-udp
633 * packets on his own: NETIF_F_IP_CSUM
635 descr
->dmac_cmd_status
=
636 cpu_to_be32(GELIC_NET_DMAC_CMDSTAT_NOCS
|
637 GELIC_NET_DMAC_CMDSTAT_END_FRAME
);
642 static inline struct sk_buff
*gelic_put_vlan_tag(struct sk_buff
*skb
,
645 struct vlan_ethhdr
*veth
;
646 static unsigned int c
;
648 if (skb_headroom(skb
) < VLAN_HLEN
) {
649 struct sk_buff
*sk_tmp
= skb
;
650 pr_debug("%s: hd=%d c=%ud\n", __func__
, skb_headroom(skb
), c
);
651 skb
= skb_realloc_headroom(sk_tmp
, VLAN_HLEN
);
654 dev_kfree_skb_any(sk_tmp
);
656 veth
= (struct vlan_ethhdr
*)skb_push(skb
, VLAN_HLEN
);
658 /* Move the mac addresses to the top of buffer */
659 memmove(skb
->data
, skb
->data
+ VLAN_HLEN
, 2 * ETH_ALEN
);
661 veth
->h_vlan_proto
= __constant_htons(ETH_P_8021Q
);
662 veth
->h_vlan_TCI
= htons(tag
);
668 * gelic_net_prepare_tx_descr_v - get dma address of skb_data
669 * @card: card structure
670 * @descr: descriptor structure
671 * @skb: packet to use
673 * returns 0 on success, <0 on failure.
676 static int gelic_net_prepare_tx_descr_v(struct gelic_net_card
*card
,
677 struct gelic_net_descr
*descr
,
682 if (card
->vlan_index
!= -1) {
683 struct sk_buff
*skb_tmp
;
684 skb_tmp
= gelic_put_vlan_tag(skb
,
685 card
->vlan_id
[card
->vlan_index
]);
691 buf
= dma_map_single(ctodev(card
), skb
->data
, skb
->len
, DMA_TO_DEVICE
);
694 dev_err(ctodev(card
),
695 "dma map 2 failed (%p, %i). Dropping packet\n",
696 skb
->data
, skb
->len
);
700 descr
->buf_addr
= cpu_to_be32(buf
);
701 descr
->buf_size
= cpu_to_be32(skb
->len
);
703 descr
->data_status
= 0;
704 descr
->next_descr_addr
= 0; /* terminate hw descr */
705 gelic_net_set_txdescr_cmdstat(descr
, skb
);
707 /* bump free descriptor pointer */
708 card
->tx_chain
.head
= descr
->next
;
713 * gelic_net_kick_txdma - enables TX DMA processing
714 * @card: card structure
715 * @descr: descriptor address to enable TX processing at
718 static int gelic_net_kick_txdma(struct gelic_net_card
*card
,
719 struct gelic_net_descr
*descr
)
723 if (card
->tx_dma_progress
)
726 if (gelic_net_get_descr_status(descr
) == GELIC_NET_DESCR_CARDOWNED
) {
727 card
->tx_dma_progress
= 1;
728 status
= lv1_net_start_tx_dma(bus_id(card
), dev_id(card
),
731 dev_info(ctodev(card
), "lv1_net_start_txdma failed," \
732 "status=%d\n", status
);
738 * gelic_net_xmit - transmits a frame over the device
739 * @skb: packet to send out
740 * @netdev: interface device structure
742 * returns 0 on success, <0 on failure
744 static int gelic_net_xmit(struct sk_buff
*skb
, struct net_device
*netdev
)
746 struct gelic_net_card
*card
= netdev_priv(netdev
);
747 struct gelic_net_descr
*descr
;
751 spin_lock_irqsave(&card
->tx_dma_lock
, flags
);
753 gelic_net_release_tx_chain(card
, 0);
755 descr
= gelic_net_get_next_tx_descr(card
);
758 * no more descriptors free
760 netif_stop_queue(netdev
);
761 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
762 return NETDEV_TX_BUSY
;
765 result
= gelic_net_prepare_tx_descr_v(card
, descr
, skb
);
768 * DMA map failed. As chanses are that failure
769 * would continue, just release skb and return
771 card
->netdev
->stats
.tx_dropped
++;
772 dev_kfree_skb_any(skb
);
773 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
777 * link this prepared descriptor to previous one
778 * to achieve high performance
780 descr
->prev
->next_descr_addr
= cpu_to_be32(descr
->bus_addr
);
782 * as hardware descriptor is modified in the above lines,
783 * ensure that the hardware sees it
786 if (gelic_net_kick_txdma(card
, descr
)) {
789 * release descriptors which were just prepared
791 card
->netdev
->stats
.tx_dropped
++;
792 gelic_net_release_tx_descr(card
, descr
);
793 gelic_net_release_tx_descr(card
, descr
->next
);
794 card
->tx_chain
.tail
= descr
->next
->next
;
795 dev_info(ctodev(card
), "%s: kick failure\n", __func__
);
797 /* OK, DMA started/reserved */
798 netdev
->trans_start
= jiffies
;
801 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
806 * gelic_net_pass_skb_up - takes an skb from a descriptor and passes it on
807 * @descr: descriptor to process
808 * @card: card structure
810 * iommu-unmaps the skb, fills out skb structure and passes the data to the
811 * stack. The descriptor state is not changed.
813 static void gelic_net_pass_skb_up(struct gelic_net_descr
*descr
,
814 struct gelic_net_card
*card
)
817 struct net_device
*netdev
;
818 u32 data_status
, data_error
;
820 data_status
= be32_to_cpu(descr
->data_status
);
821 data_error
= be32_to_cpu(descr
->data_error
);
822 netdev
= card
->netdev
;
823 /* unmap skb buffer */
825 dma_unmap_single(ctodev(card
),
826 be32_to_cpu(descr
->buf_addr
), GELIC_NET_MAX_MTU
,
829 skb_put(skb
, descr
->valid_size
?
830 be32_to_cpu(descr
->valid_size
) :
831 be32_to_cpu(descr
->result_size
));
832 if (!descr
->valid_size
)
833 dev_info(ctodev(card
), "buffer full %x %x %x\n",
834 be32_to_cpu(descr
->result_size
),
835 be32_to_cpu(descr
->buf_size
),
836 be32_to_cpu(descr
->dmac_cmd_status
));
840 * the card put 2 bytes vlan tag in front
841 * of the ethernet frame
844 skb
->protocol
= eth_type_trans(skb
, netdev
);
846 /* checksum offload */
848 if ((data_status
& GELIC_NET_DATA_STATUS_CHK_MASK
) &&
849 (!(data_error
& GELIC_NET_DATA_ERROR_CHK_MASK
)))
850 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
852 skb
->ip_summed
= CHECKSUM_NONE
;
854 skb
->ip_summed
= CHECKSUM_NONE
;
856 /* update netdevice statistics */
857 card
->netdev
->stats
.rx_packets
++;
858 card
->netdev
->stats
.rx_bytes
+= skb
->len
;
860 /* pass skb up to stack */
861 netif_receive_skb(skb
);
865 * gelic_net_decode_one_descr - processes an rx descriptor
866 * @card: card structure
868 * returns 1 if a packet has been sent to the stack, otherwise 0
870 * processes an rx descriptor by iommu-unmapping the data buffer and passing
871 * the packet up to the stack
873 static int gelic_net_decode_one_descr(struct gelic_net_card
*card
)
875 enum gelic_net_descr_status status
;
876 struct gelic_net_descr_chain
*chain
= &card
->rx_chain
;
877 struct gelic_net_descr
*descr
= chain
->tail
;
878 int dmac_chain_ended
;
880 status
= gelic_net_get_descr_status(descr
);
881 /* is this descriptor terminated with next_descr == NULL? */
883 be32_to_cpu(descr
->dmac_cmd_status
) &
884 GELIC_NET_DMAC_CMDSTAT_RXDCEIS
;
886 if (status
== GELIC_NET_DESCR_CARDOWNED
)
889 if (status
== GELIC_NET_DESCR_NOT_IN_USE
) {
890 dev_dbg(ctodev(card
), "dormant descr? %p\n", descr
);
894 if ((status
== GELIC_NET_DESCR_RESPONSE_ERROR
) ||
895 (status
== GELIC_NET_DESCR_PROTECTION_ERROR
) ||
896 (status
== GELIC_NET_DESCR_FORCE_END
)) {
897 dev_info(ctodev(card
), "dropping RX descriptor with state %x\n",
899 card
->netdev
->stats
.rx_dropped
++;
903 if (status
== GELIC_NET_DESCR_BUFFER_FULL
) {
905 * Buffer full would occur if and only if
906 * the frame length was longer than the size of this
907 * descriptor's buffer. If the frame length was equal
908 * to or shorter than buffer'size, FRAME_END condition
910 * Anyway this frame was longer than the MTU,
913 dev_info(ctodev(card
), "overlength frame\n");
917 * descriptoers any other than FRAME_END here should
918 * be treated as error.
920 if (status
!= GELIC_NET_DESCR_FRAME_END
) {
921 dev_dbg(ctodev(card
), "RX descriptor with state %x\n",
926 /* ok, we've got a packet in descr */
927 gelic_net_pass_skb_up(descr
, card
);
930 * So that always DMAC can see the end
931 * of the descriptor chain to avoid
932 * from unwanted DMAC overrun.
934 descr
->next_descr_addr
= 0;
936 /* change the descriptor state: */
937 gelic_net_set_descr_status(descr
, GELIC_NET_DESCR_NOT_IN_USE
);
940 * this call can fail, but for now, just leave this
941 * decriptor without skb
943 gelic_net_prepare_rx_descr(card
, descr
);
946 chain
->tail
= descr
->next
;
949 * Set this descriptor the end of the chain.
951 descr
->prev
->next_descr_addr
= cpu_to_be32(descr
->bus_addr
);
954 * If dmac chain was met, DMAC stopped.
957 if (dmac_chain_ended
) {
958 card
->rx_dma_restart_required
= 1;
959 dev_dbg(ctodev(card
), "reenable rx dma scheduled\n");
966 * gelic_net_poll - NAPI poll function called by the stack to return packets
967 * @netdev: interface device structure
968 * @budget: number of packets we can pass to the stack at most
970 * returns 0 if no more packets available to the driver/stack. Returns 1,
971 * if the quota is exceeded, but the driver has still packets.
974 static int gelic_net_poll(struct napi_struct
*napi
, int budget
)
976 struct gelic_net_card
*card
= container_of(napi
, struct gelic_net_card
, napi
);
977 struct net_device
*netdev
= card
->netdev
;
978 int packets_done
= 0;
980 while (packets_done
< budget
) {
981 if (!gelic_net_decode_one_descr(card
))
987 if (packets_done
< budget
) {
988 netif_rx_complete(netdev
, napi
);
989 gelic_net_rx_irq_on(card
);
994 * gelic_net_change_mtu - changes the MTU of an interface
995 * @netdev: interface device structure
996 * @new_mtu: new MTU value
998 * returns 0 on success, <0 on failure
1000 static int gelic_net_change_mtu(struct net_device
*netdev
, int new_mtu
)
1002 /* no need to re-alloc skbs or so -- the max mtu is about 2.3k
1003 * and mtu is outbound only anyway */
1004 if ((new_mtu
< GELIC_NET_MIN_MTU
) ||
1005 (new_mtu
> GELIC_NET_MAX_MTU
)) {
1008 netdev
->mtu
= new_mtu
;
1013 * gelic_net_interrupt - event handler for gelic_net
1015 static irqreturn_t
gelic_net_interrupt(int irq
, void *ptr
)
1017 unsigned long flags
;
1018 struct net_device
*netdev
= ptr
;
1019 struct gelic_net_card
*card
= netdev_priv(netdev
);
1022 status
= card
->irq_status
;
1027 if (card
->rx_dma_restart_required
) {
1028 card
->rx_dma_restart_required
= 0;
1029 gelic_net_enable_rxdmac(card
);
1032 if (status
& GELIC_NET_RXINT
) {
1033 gelic_net_rx_irq_off(card
);
1034 netif_rx_schedule(netdev
, &card
->napi
);
1037 if (status
& GELIC_NET_TXINT
) {
1038 spin_lock_irqsave(&card
->tx_dma_lock
, flags
);
1039 card
->tx_dma_progress
= 0;
1040 gelic_net_release_tx_chain(card
, 0);
1041 /* kick outstanding tx descriptor if any */
1042 gelic_net_kick_txdma(card
, card
->tx_chain
.tail
);
1043 spin_unlock_irqrestore(&card
->tx_dma_lock
, flags
);
1048 #ifdef CONFIG_NET_POLL_CONTROLLER
1050 * gelic_net_poll_controller - artificial interrupt for netconsole etc.
1051 * @netdev: interface device structure
1053 * see Documentation/networking/netconsole.txt
1055 static void gelic_net_poll_controller(struct net_device
*netdev
)
1057 struct gelic_net_card
*card
= netdev_priv(netdev
);
1059 gelic_net_set_irq_mask(card
, 0);
1060 gelic_net_interrupt(netdev
->irq
, netdev
);
1061 gelic_net_set_irq_mask(card
, card
->ghiintmask
);
1063 #endif /* CONFIG_NET_POLL_CONTROLLER */
1066 * gelic_net_open_device - open device and map dma region
1067 * @card: card structure
1069 static int gelic_net_open_device(struct gelic_net_card
*card
)
1073 result
= ps3_sb_event_receive_port_setup(card
->dev
, PS3_BINDING_CPU_ANY
,
1074 &card
->netdev
->irq
);
1077 dev_info(ctodev(card
),
1078 "%s:%d: gelic_net_open_device failed (%d)\n",
1079 __func__
, __LINE__
, result
);
1081 goto fail_alloc_irq
;
1084 result
= request_irq(card
->netdev
->irq
, gelic_net_interrupt
,
1085 IRQF_DISABLED
, card
->netdev
->name
, card
->netdev
);
1088 dev_info(ctodev(card
), "%s:%d: request_irq failed (%d)\n",
1089 __func__
, __LINE__
, result
);
1090 goto fail_request_irq
;
1096 ps3_sb_event_receive_port_destroy(card
->dev
, card
->netdev
->irq
);
1097 card
->netdev
->irq
= NO_IRQ
;
1104 * gelic_net_open - called upon ifonfig up
1105 * @netdev: interface device structure
1107 * returns 0 on success, <0 on failure
1109 * gelic_net_open allocates all the descriptors and memory needed for
1110 * operation, sets up multicast list and enables interrupts
1112 static int gelic_net_open(struct net_device
*netdev
)
1114 struct gelic_net_card
*card
= netdev_priv(netdev
);
1116 dev_dbg(ctodev(card
), " -> %s:%d\n", __func__
, __LINE__
);
1118 gelic_net_open_device(card
);
1120 if (gelic_net_init_chain(card
, &card
->tx_chain
,
1121 card
->descr
, GELIC_NET_TX_DESCRIPTORS
))
1122 goto alloc_tx_failed
;
1123 if (gelic_net_init_chain(card
, &card
->rx_chain
,
1124 card
->descr
+ GELIC_NET_TX_DESCRIPTORS
,
1125 GELIC_NET_RX_DESCRIPTORS
))
1126 goto alloc_rx_failed
;
1129 card
->tx_top
= card
->tx_chain
.head
;
1130 card
->rx_top
= card
->rx_chain
.head
;
1131 dev_dbg(ctodev(card
), "descr rx %p, tx %p, size %#lx, num %#x\n",
1132 card
->rx_top
, card
->tx_top
, sizeof(struct gelic_net_descr
),
1133 GELIC_NET_RX_DESCRIPTORS
);
1134 /* allocate rx skbs */
1135 if (gelic_net_alloc_rx_skbs(card
))
1136 goto alloc_skbs_failed
;
1138 napi_enable(&card
->napi
);
1140 card
->tx_dma_progress
= 0;
1141 card
->ghiintmask
= GELIC_NET_RXINT
| GELIC_NET_TXINT
;
1143 gelic_net_set_irq_mask(card
, card
->ghiintmask
);
1144 gelic_net_enable_rxdmac(card
);
1146 netif_start_queue(netdev
);
1147 netif_carrier_on(netdev
);
1152 gelic_net_free_chain(card
, card
->rx_top
);
1154 gelic_net_free_chain(card
, card
->tx_top
);
1159 static void gelic_net_get_drvinfo (struct net_device
*netdev
,
1160 struct ethtool_drvinfo
*info
)
1162 strncpy(info
->driver
, DRV_NAME
, sizeof(info
->driver
) - 1);
1163 strncpy(info
->version
, DRV_VERSION
, sizeof(info
->version
) - 1);
1166 static int gelic_net_get_settings(struct net_device
*netdev
,
1167 struct ethtool_cmd
*cmd
)
1169 struct gelic_net_card
*card
= netdev_priv(netdev
);
1174 speed
= duplex
= -1;
1175 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1176 GELIC_NET_GET_ETH_PORT_STATUS
, GELIC_NET_PORT
, 0, 0,
1181 if (v1
& GELIC_NET_FULL_DUPLEX
) {
1182 duplex
= DUPLEX_FULL
;
1184 duplex
= DUPLEX_HALF
;
1187 if (v1
& GELIC_NET_SPEED_10
) {
1189 } else if (v1
& GELIC_NET_SPEED_100
) {
1191 } else if (v1
& GELIC_NET_SPEED_1000
) {
1195 cmd
->supported
= SUPPORTED_TP
| SUPPORTED_Autoneg
|
1196 SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full
|
1197 SUPPORTED_100baseT_Half
| SUPPORTED_100baseT_Full
|
1198 SUPPORTED_1000baseT_Half
| SUPPORTED_1000baseT_Full
;
1199 cmd
->advertising
= cmd
->supported
;
1201 cmd
->duplex
= duplex
;
1202 cmd
->autoneg
= AUTONEG_ENABLE
; /* always enabled */
1203 cmd
->port
= PORT_TP
;
1208 static u32
gelic_net_get_link(struct net_device
*netdev
)
1210 struct gelic_net_card
*card
= netdev_priv(netdev
);
1215 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1216 GELIC_NET_GET_ETH_PORT_STATUS
, GELIC_NET_PORT
, 0, 0,
1219 return 0; /* link down */
1221 if (v1
& GELIC_NET_LINK_UP
)
1229 static int gelic_net_nway_reset(struct net_device
*netdev
)
1231 if (netif_running(netdev
)) {
1232 gelic_net_stop(netdev
);
1233 gelic_net_open(netdev
);
1238 static u32
gelic_net_get_tx_csum(struct net_device
*netdev
)
1240 return (netdev
->features
& NETIF_F_IP_CSUM
) != 0;
1243 static int gelic_net_set_tx_csum(struct net_device
*netdev
, u32 data
)
1246 netdev
->features
|= NETIF_F_IP_CSUM
;
1248 netdev
->features
&= ~NETIF_F_IP_CSUM
;
1253 static u32
gelic_net_get_rx_csum(struct net_device
*netdev
)
1255 struct gelic_net_card
*card
= netdev_priv(netdev
);
1257 return card
->rx_csum
;
1260 static int gelic_net_set_rx_csum(struct net_device
*netdev
, u32 data
)
1262 struct gelic_net_card
*card
= netdev_priv(netdev
);
1264 card
->rx_csum
= data
;
1268 static struct ethtool_ops gelic_net_ethtool_ops
= {
1269 .get_drvinfo
= gelic_net_get_drvinfo
,
1270 .get_settings
= gelic_net_get_settings
,
1271 .get_link
= gelic_net_get_link
,
1272 .nway_reset
= gelic_net_nway_reset
,
1273 .get_tx_csum
= gelic_net_get_tx_csum
,
1274 .set_tx_csum
= gelic_net_set_tx_csum
,
1275 .get_rx_csum
= gelic_net_get_rx_csum
,
1276 .set_rx_csum
= gelic_net_set_rx_csum
,
1280 * gelic_net_tx_timeout_task - task scheduled by the watchdog timeout
1281 * function (to be called not under interrupt status)
1282 * @work: work is context of tx timout task
1284 * called as task when tx hangs, resets interface (if interface is up)
1286 static void gelic_net_tx_timeout_task(struct work_struct
*work
)
1288 struct gelic_net_card
*card
=
1289 container_of(work
, struct gelic_net_card
, tx_timeout_task
);
1290 struct net_device
*netdev
= card
->netdev
;
1292 dev_info(ctodev(card
), "%s:Timed out. Restarting... \n", __func__
);
1294 if (!(netdev
->flags
& IFF_UP
))
1297 netif_device_detach(netdev
);
1298 gelic_net_stop(netdev
);
1300 gelic_net_open(netdev
);
1301 netif_device_attach(netdev
);
1304 atomic_dec(&card
->tx_timeout_task_counter
);
1308 * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in.
1309 * @netdev: interface device structure
1311 * called, if tx hangs. Schedules a task that resets the interface
1313 static void gelic_net_tx_timeout(struct net_device
*netdev
)
1315 struct gelic_net_card
*card
;
1317 card
= netdev_priv(netdev
);
1318 atomic_inc(&card
->tx_timeout_task_counter
);
1319 if (netdev
->flags
& IFF_UP
)
1320 schedule_work(&card
->tx_timeout_task
);
1322 atomic_dec(&card
->tx_timeout_task_counter
);
1326 * gelic_net_setup_netdev_ops - initialization of net_device operations
1327 * @netdev: net_device structure
1329 * fills out function pointers in the net_device structure
1331 static void gelic_net_setup_netdev_ops(struct net_device
*netdev
)
1333 netdev
->open
= &gelic_net_open
;
1334 netdev
->stop
= &gelic_net_stop
;
1335 netdev
->hard_start_xmit
= &gelic_net_xmit
;
1336 netdev
->set_multicast_list
= &gelic_net_set_multi
;
1337 netdev
->change_mtu
= &gelic_net_change_mtu
;
1339 netdev
->tx_timeout
= &gelic_net_tx_timeout
;
1340 netdev
->watchdog_timeo
= GELIC_NET_WATCHDOG_TIMEOUT
;
1341 netdev
->ethtool_ops
= &gelic_net_ethtool_ops
;
1345 * gelic_net_setup_netdev - initialization of net_device
1346 * @card: card structure
1348 * Returns 0 on success or <0 on failure
1350 * gelic_net_setup_netdev initializes the net_device structure
1352 static int gelic_net_setup_netdev(struct gelic_net_card
*card
)
1354 struct net_device
*netdev
= card
->netdev
;
1355 struct sockaddr addr
;
1359 DECLARE_MAC_BUF(mac
);
1361 SET_NETDEV_DEV(netdev
, &card
->dev
->core
);
1362 spin_lock_init(&card
->tx_dma_lock
);
1364 card
->rx_csum
= GELIC_NET_RX_CSUM_DEFAULT
;
1366 gelic_net_setup_netdev_ops(netdev
);
1368 netif_napi_add(netdev
, &card
->napi
,
1369 gelic_net_poll
, GELIC_NET_NAPI_WEIGHT
);
1371 netdev
->features
= NETIF_F_IP_CSUM
;
1373 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1374 GELIC_NET_GET_MAC_ADDRESS
,
1376 if (status
|| !is_valid_ether_addr((u8
*)&v1
)) {
1377 dev_info(ctodev(card
),
1378 "%s:lv1_net_control GET_MAC_ADDR failed %d\n",
1383 memcpy(addr
.sa_data
, &v1
, ETH_ALEN
);
1384 memcpy(netdev
->dev_addr
, addr
.sa_data
, ETH_ALEN
);
1385 dev_info(ctodev(card
), "MAC addr %s\n",
1386 print_mac(mac
, netdev
->dev_addr
));
1388 card
->vlan_index
= -1; /* no vlan */
1389 for (i
= 0; i
< GELIC_NET_VLAN_MAX
; i
++) {
1390 status
= lv1_net_control(bus_id(card
), dev_id(card
),
1391 GELIC_NET_GET_VLAN_ID
,
1392 i
+ 1, /* index; one based */
1394 if (status
== GELIC_NET_VLAN_NO_ENTRY
) {
1395 dev_dbg(ctodev(card
),
1396 "GELIC_VLAN_ID no entry:%d, VLAN disabled\n",
1398 card
->vlan_id
[i
] = 0;
1399 } else if (status
) {
1400 dev_dbg(ctodev(card
),
1401 "%s:GELIC_NET_VLAN_ID faild, status=%d\n",
1403 card
->vlan_id
[i
] = 0;
1405 card
->vlan_id
[i
] = (u32
)v1
;
1406 dev_dbg(ctodev(card
), "vlan_id:%d, %lx\n", i
, v1
);
1410 if (card
->vlan_id
[GELIC_NET_VLAN_WIRED
- 1]) {
1411 card
->vlan_index
= GELIC_NET_VLAN_WIRED
- 1;
1412 netdev
->hard_header_len
+= VLAN_HLEN
;
1415 status
= register_netdev(netdev
);
1417 dev_err(ctodev(card
), "%s:Couldn't register net_device: %d\n",
1426 * gelic_net_alloc_card - allocates net_device and card structure
1428 * returns the card structure or NULL in case of errors
1430 * the card and net_device structures are linked to each other
1432 static struct gelic_net_card
*gelic_net_alloc_card(void)
1434 struct net_device
*netdev
;
1435 struct gelic_net_card
*card
;
1438 alloc_size
= sizeof (*card
) +
1439 sizeof (struct gelic_net_descr
) * GELIC_NET_RX_DESCRIPTORS
+
1440 sizeof (struct gelic_net_descr
) * GELIC_NET_TX_DESCRIPTORS
;
1442 * we assume private data is allocated 32 bytes (or more) aligned
1443 * so that gelic_net_descr should be 32 bytes aligned.
1444 * Current alloc_etherdev() does do it because NETDEV_ALIGN
1446 * check this assumption here.
1448 BUILD_BUG_ON(NETDEV_ALIGN
< 32);
1449 BUILD_BUG_ON(offsetof(struct gelic_net_card
, irq_status
) % 8);
1450 BUILD_BUG_ON(offsetof(struct gelic_net_card
, descr
) % 32);
1452 netdev
= alloc_etherdev(alloc_size
);
1456 card
= netdev_priv(netdev
);
1457 card
->netdev
= netdev
;
1458 INIT_WORK(&card
->tx_timeout_task
, gelic_net_tx_timeout_task
);
1459 init_waitqueue_head(&card
->waitq
);
1460 atomic_set(&card
->tx_timeout_task_counter
, 0);
1466 * ps3_gelic_driver_probe - add a device to the control of this driver
1468 static int ps3_gelic_driver_probe (struct ps3_system_bus_device
*dev
)
1470 struct gelic_net_card
*card
= gelic_net_alloc_card();
1474 dev_info(&dev
->core
, "gelic_net_alloc_card failed\n");
1476 goto fail_alloc_card
;
1479 ps3_system_bus_set_driver_data(dev
, card
);
1482 result
= ps3_open_hv_device(dev
);
1485 dev_dbg(&dev
->core
, "ps3_open_hv_device failed\n");
1489 result
= ps3_dma_region_create(dev
->d_region
);
1492 dev_dbg(&dev
->core
, "ps3_dma_region_create failed(%d)\n",
1494 BUG_ON("check region type");
1495 goto fail_dma_region
;
1498 result
= lv1_net_set_interrupt_status_indicator(bus_id(card
),
1500 ps3_mm_phys_to_lpar(__pa(&card
->irq_status
)),
1505 "lv1_net_set_interrupt_status_indicator failed: %s\n",
1506 ps3_result(result
));
1508 goto fail_status_indicator
;
1511 result
= gelic_net_setup_netdev(card
);
1514 dev_dbg(&dev
->core
, "%s:%d: ps3_dma_region_create failed: "
1515 "(%d)\n", __func__
, __LINE__
, result
);
1516 goto fail_setup_netdev
;
1522 lv1_net_set_interrupt_status_indicator(bus_id(card
),
1525 fail_status_indicator
:
1526 ps3_dma_region_free(dev
->d_region
);
1528 ps3_close_hv_device(dev
);
1530 ps3_system_bus_set_driver_data(dev
, NULL
);
1531 free_netdev(card
->netdev
);
1537 * ps3_gelic_driver_remove - remove a device from the control of this driver
1540 static int ps3_gelic_driver_remove (struct ps3_system_bus_device
*dev
)
1542 struct gelic_net_card
*card
= ps3_system_bus_get_driver_data(dev
);
1544 wait_event(card
->waitq
,
1545 atomic_read(&card
->tx_timeout_task_counter
) == 0);
1547 lv1_net_set_interrupt_status_indicator(bus_id(card
), dev_id(card
),
1550 unregister_netdev(card
->netdev
);
1551 free_netdev(card
->netdev
);
1553 ps3_system_bus_set_driver_data(dev
, NULL
);
1555 ps3_dma_region_free(dev
->d_region
);
1557 ps3_close_hv_device(dev
);
1562 static struct ps3_system_bus_driver ps3_gelic_driver
= {
1563 .match_id
= PS3_MATCH_ID_GELIC
,
1564 .probe
= ps3_gelic_driver_probe
,
1565 .remove
= ps3_gelic_driver_remove
,
1566 .shutdown
= ps3_gelic_driver_remove
,
1567 .core
.name
= "ps3_gelic_driver",
1568 .core
.owner
= THIS_MODULE
,
1571 static int __init
ps3_gelic_driver_init (void)
1573 return firmware_has_feature(FW_FEATURE_PS3_LV1
)
1574 ? ps3_system_bus_driver_register(&ps3_gelic_driver
)
1578 static void __exit
ps3_gelic_driver_exit (void)
1580 ps3_system_bus_driver_unregister(&ps3_gelic_driver
);
1583 module_init (ps3_gelic_driver_init
);
1584 module_exit (ps3_gelic_driver_exit
);
1586 MODULE_ALIAS(PS3_MODULE_ALIAS_GELIC
);