2 * Copyright (c) 2011 Zdenek Bouska
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 * Driver for Intel Pro/1000 8254x Family of Gigabit Ethernet Controllers
40 #include <byteorder.h>
45 #include <ddf/interrupt.h>
46 #include <device/hw_res_parsed.h>
47 #include <pci_dev_iface.h>
54 #define E1000_DEFAULT_INTERRUPT_INTERVAL_USEC 250
56 /* Must be power of 8 */
57 #define E1000_RX_FRAME_COUNT 128
58 #define E1000_TX_FRAME_COUNT 128
60 #define E1000_RECEIVE_ADDRESS 16
62 /** Maximum sending frame size */
63 #define E1000_MAX_SEND_FRAME_SIZE 2048
64 /** Maximum receiving frame size */
65 #define E1000_MAX_RECEIVE_FRAME_SIZE 2048
67 /** nic_driver_data_t* -> e1000_t* cast */
68 #define DRIVER_DATA_NIC(nic) \
69 ((e1000_t *) nic_get_specific(nic))
71 /** ddf_fun_t * -> nic_driver_data_t* cast */
72 #define NIC_DATA_FUN(fun) \
73 ((nic_t *) ddf_dev_data_get(ddf_fun_get_dev(fun)))
75 /** ddf_dev_t * -> nic_driver_data_t* cast */
76 #define NIC_DATA_DEV(dev) \
77 ((nic_t *) ddf_dev_data_get(dev))
79 /** ddf_dev_t * -> e1000_t* cast */
80 #define DRIVER_DATA_DEV(dev) \
81 (DRIVER_DATA_NIC(NIC_DATA_DEV(dev)))
83 /** ddf_fun_t * -> e1000_t* cast */
84 #define DRIVER_DATA_FUN(fun) \
85 (DRIVER_DATA_NIC(NIC_DATA_FUN(fun)))
87 /** Cast pointer to uint64_t
89 * @param ptr Pointer to cast
91 * @return The uint64_t pointer representation.
94 #define PTR_TO_U64(ptr) ((uint64_t) ((uintptr_t) (ptr)))
96 /** Cast the memaddr part to the void*
98 * @param memaddr The memaddr value
101 #define MEMADDR_TO_PTR(memaddr) ((void *) ((size_t) (memaddr)))
103 #define E1000_REG_BASE(e1000) \
104 ((e1000)->reg_base_virt)
106 #define E1000_REG_ADDR(e1000, reg) \
107 ((uint32_t *) (E1000_REG_BASE(e1000) + reg))
109 #define E1000_REG_READ(e1000, reg) \
110 (pio_read_32(E1000_REG_ADDR(e1000, reg)))
112 #define E1000_REG_WRITE(e1000, reg, value) \
113 (pio_write_32(E1000_REG_ADDR(e1000, reg), value))
115 /** E1000 device data */
117 /** Device configuration */
120 /** Physical registers base address */
122 /** Virtual registers base address */
125 /** Physical tx ring address */
126 uintptr_t tx_ring_phys
;
127 /** Virtual tx ring address */
130 /** Ring of TX frames, physical address */
131 uintptr_t *tx_frame_phys
;
132 /** Ring of TX frames, virtual address */
133 void **tx_frame_virt
;
135 /** Physical rx ring address */
136 uintptr_t rx_ring_phys
;
137 /** Virtual rx ring address */
140 /** Ring of RX frames, physical address */
141 uintptr_t *rx_frame_phys
;
142 /** Ring of RX frames, virtual address */
143 void **rx_frame_virt
;
148 /** Add VLAN tag to frame */
151 /** Used unicast Receive Address count */
152 unsigned int unicast_ra_count
;
154 /** Used milticast Receive addrress count */
155 unsigned int multicast_ra_count
;
157 /** The irq assigned */
160 /** Lock for CTRL register */
161 fibril_mutex_t ctrl_lock
;
163 /** Lock for receiver */
164 fibril_mutex_t rx_lock
;
166 /** Lock for transmitter */
167 fibril_mutex_t tx_lock
;
169 /** Lock for EEPROM access */
170 fibril_mutex_t eeprom_lock
;
173 /** Global mutex for work with shared irq structure */
174 FIBRIL_MUTEX_INITIALIZE(irq_reg_mutex
);
176 static int e1000_get_address(e1000_t
*, nic_address_t
*);
177 static void e1000_eeprom_get_address(e1000_t
*, nic_address_t
*);
178 static int e1000_set_addr(ddf_fun_t
*, const nic_address_t
*);
180 static int e1000_defective_get_mode(ddf_fun_t
*, uint32_t *);
181 static int e1000_defective_set_mode(ddf_fun_t
*, uint32_t);
183 static int e1000_get_cable_state(ddf_fun_t
*, nic_cable_state_t
*);
184 static int e1000_get_device_info(ddf_fun_t
*, nic_device_info_t
*);
185 static int e1000_get_operation_mode(ddf_fun_t
*, int *,
186 nic_channel_mode_t
*, nic_role_t
*);
187 static int e1000_set_operation_mode(ddf_fun_t
*, int,
188 nic_channel_mode_t
, nic_role_t
);
189 static int e1000_autoneg_enable(ddf_fun_t
*, uint32_t);
190 static int e1000_autoneg_disable(ddf_fun_t
*);
191 static int e1000_autoneg_restart(ddf_fun_t
*);
193 static int e1000_vlan_set_tag(ddf_fun_t
*, uint16_t, bool, bool);
195 /** Network interface options for E1000 card driver */
196 static nic_iface_t e1000_nic_iface
;
198 /** Network interface options for E1000 card driver */
199 static nic_iface_t e1000_nic_iface
= {
200 .set_address
= &e1000_set_addr
,
201 .get_device_info
= &e1000_get_device_info
,
202 .get_cable_state
= &e1000_get_cable_state
,
203 .get_operation_mode
= &e1000_get_operation_mode
,
204 .set_operation_mode
= &e1000_set_operation_mode
,
205 .autoneg_enable
= &e1000_autoneg_enable
,
206 .autoneg_disable
= &e1000_autoneg_disable
,
207 .autoneg_restart
= &e1000_autoneg_restart
,
208 .vlan_set_tag
= &e1000_vlan_set_tag
,
209 .defective_get_mode
= &e1000_defective_get_mode
,
210 .defective_set_mode
= &e1000_defective_set_mode
,
213 /** Basic device operations for E1000 driver */
214 static ddf_dev_ops_t e1000_dev_ops
;
216 static int e1000_dev_add(ddf_dev_t
*);
218 /** Basic driver operations for E1000 driver */
219 static driver_ops_t e1000_driver_ops
= {
220 .dev_add
= e1000_dev_add
223 /** Driver structure for E1000 driver */
224 static driver_t e1000_driver
= {
226 .driver_ops
= &e1000_driver_ops
229 /* The default implementation callbacks */
230 static int e1000_on_activating(nic_t
*);
231 static int e1000_on_stopping(nic_t
*);
232 static void e1000_send_frame(nic_t
*, void *, size_t);
234 /** PIO ranges used in the IRQ code. */
235 irq_pio_range_t e1000_irq_pio_ranges
[] = {
238 .size
= PAGE_SIZE
, /* XXX */
242 /** Commands to deal with interrupt
245 irq_cmd_t e1000_irq_commands
[] = {
247 /* Get the interrupt status */
248 .cmd
= CMD_PIO_READ_32
,
253 .cmd
= CMD_PREDICATE
,
258 /* Disable interrupts until interrupt routine is finished */
259 .cmd
= CMD_PIO_WRITE_32
,
268 /** Interrupt code definition */
269 irq_code_t e1000_irq_code
= {
270 .rangecount
= sizeof(e1000_irq_pio_ranges
) /
271 sizeof(irq_pio_range_t
),
272 .ranges
= e1000_irq_pio_ranges
,
273 .cmdcount
= sizeof(e1000_irq_commands
) / sizeof(irq_cmd_t
),
274 .cmds
= e1000_irq_commands
277 /** Get the device information
279 * @param dev NIC device
280 * @param info Information to fill
285 static int e1000_get_device_info(ddf_fun_t
*dev
, nic_device_info_t
*info
)
290 memset(info
, 0, sizeof(nic_device_info_t
));
292 info
->vendor_id
= 0x8086;
293 str_cpy(info
->vendor_name
, NIC_VENDOR_MAX_LENGTH
,
294 "Intel Corporation");
295 str_cpy(info
->model_name
, NIC_MODEL_MAX_LENGTH
,
298 info
->ethernet_support
[ETH_10M
] = ETH_10BASE_T
;
299 info
->ethernet_support
[ETH_100M
] = ETH_100BASE_TX
;
300 info
->ethernet_support
[ETH_1000M
] = ETH_1000BASE_T
;
305 /** Check the cable state
307 * @param[in] dev device
308 * @param[out] state state to fill
313 static int e1000_get_cable_state(ddf_fun_t
*fun
, nic_cable_state_t
*state
)
315 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
316 if (E1000_REG_READ(e1000
, E1000_STATUS
) & (STATUS_LU
))
317 *state
= NIC_CS_PLUGGED
;
319 *state
= NIC_CS_UNPLUGGED
;
324 static uint16_t e1000_calculate_itr_interval_from_usecs(suseconds_t useconds
)
329 /** Get operation mode of the device
332 static int e1000_get_operation_mode(ddf_fun_t
*fun
, int *speed
,
333 nic_channel_mode_t
*duplex
, nic_role_t
*role
)
335 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
336 uint32_t status
= E1000_REG_READ(e1000
, E1000_STATUS
);
338 if (status
& STATUS_FD
)
339 *duplex
= NIC_CM_FULL_DUPLEX
;
341 *duplex
= NIC_CM_HALF_DUPLEX
;
343 uint32_t speed_bits
=
344 (status
>> STATUS_SPEED_SHIFT
) & STATUS_SPEED_ALL
;
346 if (speed_bits
== STATUS_SPEED_10
)
348 else if (speed_bits
== STATUS_SPEED_100
)
350 else if ((speed_bits
== STATUS_SPEED_1000A
) ||
351 (speed_bits
== STATUS_SPEED_1000B
))
354 *role
= NIC_ROLE_UNKNOWN
;
358 static void e1000_link_restart(e1000_t
*e1000
)
360 fibril_mutex_lock(&e1000
->ctrl_lock
);
362 uint32_t ctrl
= E1000_REG_READ(e1000
, E1000_CTRL
);
364 if (ctrl
& CTRL_SLU
) {
366 fibril_mutex_unlock(&e1000
->ctrl_lock
);
368 fibril_mutex_lock(&e1000
->ctrl_lock
);
372 fibril_mutex_unlock(&e1000
->ctrl_lock
);
374 e1000_link_restart(e1000
);
377 /** Set operation mode of the device
380 static int e1000_set_operation_mode(ddf_fun_t
*fun
, int speed
,
381 nic_channel_mode_t duplex
, nic_role_t role
)
383 if ((speed
!= 10) && (speed
!= 100) && (speed
!= 1000))
386 if ((duplex
!= NIC_CM_HALF_DUPLEX
) && (duplex
!= NIC_CM_FULL_DUPLEX
))
389 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
391 fibril_mutex_lock(&e1000
->ctrl_lock
);
392 uint32_t ctrl
= E1000_REG_READ(e1000
, E1000_CTRL
);
395 ctrl
|= CTRL_FRCDPLX
;
396 ctrl
&= ~(CTRL_ASDE
);
398 if (duplex
== NIC_CM_FULL_DUPLEX
)
403 ctrl
&= ~(CTRL_SPEED_MASK
);
405 ctrl
|= CTRL_SPEED_1000
<< CTRL_SPEED_SHIFT
;
406 else if (speed
== 100)
407 ctrl
|= CTRL_SPEED_100
<< CTRL_SPEED_SHIFT
;
409 ctrl
|= CTRL_SPEED_10
<< CTRL_SPEED_SHIFT
;
411 E1000_REG_WRITE(e1000
, E1000_CTRL
, ctrl
);
413 fibril_mutex_unlock(&e1000
->ctrl_lock
);
415 e1000_link_restart(e1000
);
420 /** Enable auto-negotiation
422 * @param dev Device to update
423 * @param advertisement Ignored on E1000
425 * @return EOK if advertisement mode set successfully
428 static int e1000_autoneg_enable(ddf_fun_t
*fun
, uint32_t advertisement
)
430 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
432 fibril_mutex_lock(&e1000
->ctrl_lock
);
434 uint32_t ctrl
= E1000_REG_READ(e1000
, E1000_CTRL
);
436 ctrl
&= ~(CTRL_FRCSPD
);
437 ctrl
&= ~(CTRL_FRCDPLX
);
440 E1000_REG_WRITE(e1000
, E1000_CTRL
, ctrl
);
442 fibril_mutex_unlock(&e1000
->ctrl_lock
);
444 e1000_link_restart(e1000
);
449 /** Disable auto-negotiation
451 * @param dev Device to update
456 static int e1000_autoneg_disable(ddf_fun_t
*fun
)
458 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
460 fibril_mutex_lock(&e1000
->ctrl_lock
);
462 uint32_t ctrl
= E1000_REG_READ(e1000
, E1000_CTRL
);
465 ctrl
|= CTRL_FRCDPLX
;
466 ctrl
&= ~(CTRL_ASDE
);
468 E1000_REG_WRITE(e1000
, E1000_CTRL
, ctrl
);
470 fibril_mutex_unlock(&e1000
->ctrl_lock
);
472 e1000_link_restart(e1000
);
477 /** Restart auto-negotiation
479 * @param dev Device to update
481 * @return EOK if advertisement mode set successfully
484 static int e1000_autoneg_restart(ddf_fun_t
*dev
)
486 return e1000_autoneg_enable(dev
, 0);
489 /** Get state of acceptance of weird frames
491 * @param device Device to check
492 * @param[out] mode Current mode
495 static int e1000_defective_get_mode(ddf_fun_t
*fun
, uint32_t *mode
)
497 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
500 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
502 *mode
= NIC_DEFECTIVE_BAD_CRC
| NIC_DEFECTIVE_SHORT
;
507 /** Set acceptance of weird frames
509 * @param device Device to update
510 * @param mode Mode to set
512 * @return ENOTSUP if the mode is not supported
513 * @return EOK of mode was set
516 static int e1000_defective_set_mode(ddf_fun_t
*fun
, uint32_t mode
)
518 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
521 fibril_mutex_lock(&e1000
->rx_lock
);
523 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
524 bool short_mode
= (mode
& NIC_DEFECTIVE_SHORT
? true : false);
525 bool bad_mode
= (mode
& NIC_DEFECTIVE_BAD_CRC
? true : false);
527 if (short_mode
&& bad_mode
)
529 else if ((!short_mode
) && (!bad_mode
))
534 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
536 fibril_mutex_unlock(&e1000
->rx_lock
);
540 /** Write receive address to RA registr
542 * @param e1000 E1000 data structure
543 * @param position RA register position
544 * @param address Ethernet address
545 * @param set_av_bit Set the Addtess Valid bit
548 static void e1000_write_receive_address(e1000_t
*e1000
, unsigned int position
,
549 const nic_address_t
* address
, bool set_av_bit
)
551 uint8_t *mac0
= (uint8_t *) address
->address
;
552 uint8_t *mac1
= (uint8_t *) address
->address
+ 1;
553 uint8_t *mac2
= (uint8_t *) address
->address
+ 2;
554 uint8_t *mac3
= (uint8_t *) address
->address
+ 3;
555 uint8_t *mac4
= (uint8_t *) address
->address
+ 4;
556 uint8_t *mac5
= (uint8_t *) address
->address
+ 5;
561 ral
= ((*mac3
) << 24) | ((*mac2
) << 16) | ((*mac1
) << 8) | (*mac0
);
562 rah
= ((*mac5
) << 8) | ((*mac4
));
567 rah
|= E1000_REG_READ(e1000
, E1000_RAH_ARRAY(position
)) & RAH_AV
;
569 E1000_REG_WRITE(e1000
, E1000_RAH_ARRAY(position
), rah
);
570 E1000_REG_WRITE(e1000
, E1000_RAL_ARRAY(position
), ral
);
573 /** Disable receive address in RA registr
575 * Clear Address Valid bit
577 * @param e1000 E1000 data structure
578 * @param position RA register position
581 static void e1000_disable_receive_address(e1000_t
*e1000
, unsigned int position
)
583 uint32_t rah
= E1000_REG_READ(e1000
, E1000_RAH_ARRAY(position
));
585 E1000_REG_WRITE(e1000
, E1000_RAH_ARRAY(position
), rah
);
588 /** Clear all unicast addresses from RA registers
590 * @param e1000 E1000 data structure
593 static void e1000_clear_unicast_receive_addresses(e1000_t
*e1000
)
595 for (unsigned int ra_num
= 1;
596 ra_num
<= e1000
->unicast_ra_count
;
598 e1000_disable_receive_address(e1000
, ra_num
);
600 e1000
->unicast_ra_count
= 0;
603 /** Clear all multicast addresses from RA registers
605 * @param e1000 E1000 data structure
608 static void e1000_clear_multicast_receive_addresses(e1000_t
*e1000
)
610 unsigned int first_multicast_ra_num
=
611 E1000_RECEIVE_ADDRESS
- e1000
->multicast_ra_count
;
613 for (unsigned int ra_num
= E1000_RECEIVE_ADDRESS
- 1;
614 ra_num
>= first_multicast_ra_num
;
616 e1000_disable_receive_address(e1000
, ra_num
);
618 e1000
->multicast_ra_count
= 0;
621 /** Return receive address filter positions count usable for unicast
623 * @param e1000 E1000 data structure
625 * @return receive address filter positions count usable for unicast
628 static unsigned int get_free_unicast_address_count(e1000_t
*e1000
)
630 return E1000_RECEIVE_ADDRESS
- 1 - e1000
->multicast_ra_count
;
633 /** Return receive address filter positions count usable for multicast
635 * @param e1000 E1000 data structure
637 * @return receive address filter positions count usable for multicast
640 static unsigned int get_free_multicast_address_count(e1000_t
*e1000
)
642 return E1000_RECEIVE_ADDRESS
- 1 - e1000
->unicast_ra_count
;
645 /** Write unicast receive addresses to receive address filter registers
647 * @param e1000 E1000 data structure
648 * @param addr Pointer to address array
649 * @param addr_cnt Address array count
652 static void e1000_add_unicast_receive_addresses(e1000_t
*e1000
,
653 const nic_address_t
*addr
, size_t addr_cnt
)
655 assert(addr_cnt
<= get_free_unicast_address_count(e1000
));
657 nic_address_t
*addr_iterator
= (nic_address_t
*) addr
;
659 /* ra_num = 0 is primary address */
660 for (unsigned int ra_num
= 1;
663 e1000_write_receive_address(e1000
, ra_num
, addr_iterator
, true);
668 /** Write multicast receive addresses to receive address filter registers
670 * @param e1000 E1000 data structure
671 * @param addr Pointer to address array
672 * @param addr_cnt Address array count
675 static void e1000_add_multicast_receive_addresses(e1000_t
*e1000
,
676 const nic_address_t
*addr
, size_t addr_cnt
)
678 assert(addr_cnt
<= get_free_multicast_address_count(e1000
));
680 nic_address_t
*addr_iterator
= (nic_address_t
*) addr
;
682 unsigned int first_multicast_ra_num
= E1000_RECEIVE_ADDRESS
- addr_cnt
;
683 for (unsigned int ra_num
= E1000_RECEIVE_ADDRESS
- 1;
684 ra_num
>= first_multicast_ra_num
;
686 e1000_write_receive_address(e1000
, ra_num
, addr_iterator
, true);
691 /** Disable receiving frames for default address
693 * @param e1000 E1000 data structure
696 static void disable_ra0_address_filter(e1000_t
*e1000
)
698 uint32_t rah0
= E1000_REG_READ(e1000
, E1000_RAH_ARRAY(0));
699 rah0
= rah0
& ~RAH_AV
;
700 E1000_REG_WRITE(e1000
, E1000_RAH_ARRAY(0), rah0
);
703 /** Enable receiving frames for default address
705 * @param e1000 E1000 data structure
708 static void enable_ra0_address_filter(e1000_t
*e1000
)
710 uint32_t rah0
= E1000_REG_READ(e1000
, E1000_RAH_ARRAY(0));
711 rah0
= rah0
| RAH_AV
;
712 E1000_REG_WRITE(e1000
, E1000_RAH_ARRAY(0), rah0
);
715 /** Disable unicast promiscuous mode
717 * @param e1000 E1000 data structure
720 static void e1000_disable_unicast_promisc(e1000_t
*e1000
)
722 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
723 rctl
= rctl
& ~RCTL_UPE
;
724 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
727 /** Enable unicast promiscuous mode
729 * @param e1000 E1000 data structure
732 static void e1000_enable_unicast_promisc(e1000_t
*e1000
)
734 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
735 rctl
= rctl
| RCTL_UPE
;
736 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
739 /** Disable multicast promiscuous mode
741 * @param e1000 E1000 data structure
744 static void e1000_disable_multicast_promisc(e1000_t
*e1000
)
746 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
747 rctl
= rctl
& ~RCTL_MPE
;
748 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
751 /** Enable multicast promiscuous mode
753 * @param e1000 E1000 data structure
756 static void e1000_enable_multicast_promisc(e1000_t
*e1000
)
758 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
759 rctl
= rctl
| RCTL_MPE
;
760 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
763 /** Enable accepting of broadcast frames
765 * @param e1000 E1000 data structure
768 static void e1000_enable_broadcast_accept(e1000_t
*e1000
)
770 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
771 rctl
= rctl
| RCTL_BAM
;
772 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
775 /** Disable accepting of broadcast frames
777 * @param e1000 E1000 data structure
780 static void e1000_disable_broadcast_accept(e1000_t
*e1000
)
782 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
783 rctl
= rctl
& ~RCTL_BAM
;
784 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
787 /** Enable VLAN filtering according to VFTA registers
789 * @param e1000 E1000 data structure
792 static void e1000_enable_vlan_filter(e1000_t
*e1000
)
794 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
795 rctl
= rctl
| RCTL_VFE
;
796 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
799 /** Disable VLAN filtering
801 * @param e1000 E1000 data structure
804 static void e1000_disable_vlan_filter(e1000_t
*e1000
)
806 uint32_t rctl
= E1000_REG_READ(e1000
, E1000_RCTL
);
807 rctl
= rctl
& ~RCTL_VFE
;
808 E1000_REG_WRITE(e1000
, E1000_RCTL
, rctl
);
811 /** Set multicast frames acceptance mode
813 * @param nic NIC device to update
814 * @param mode Mode to set
815 * @param addr Address list (used in mode = NIC_MULTICAST_LIST)
816 * @param addr_cnt Length of address list (used in mode = NIC_MULTICAST_LIST)
821 static int e1000_on_multicast_mode_change(nic_t
*nic
, nic_multicast_mode_t mode
,
822 const nic_address_t
*addr
, size_t addr_cnt
)
824 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
827 fibril_mutex_lock(&e1000
->rx_lock
);
830 case NIC_MULTICAST_BLOCKED
:
831 e1000_clear_multicast_receive_addresses(e1000
);
832 e1000_disable_multicast_promisc(e1000
);
833 nic_report_hw_filtering(nic
, -1, 1, -1);
835 case NIC_MULTICAST_LIST
:
836 e1000_clear_multicast_receive_addresses(e1000
);
837 if (addr_cnt
> get_free_multicast_address_count(e1000
)) {
839 * Future work: fill MTA table
840 * Not strictly neccessary, it only saves some compares
841 * in the NIC library.
843 e1000_enable_multicast_promisc(e1000
);
844 nic_report_hw_filtering(nic
, -1, 0, -1);
846 e1000_disable_multicast_promisc(e1000
);
847 e1000_add_multicast_receive_addresses(e1000
, addr
, addr_cnt
);
848 nic_report_hw_filtering(nic
, -1, 1, -1);
851 case NIC_MULTICAST_PROMISC
:
852 e1000_enable_multicast_promisc(e1000
);
853 e1000_clear_multicast_receive_addresses(e1000
);
854 nic_report_hw_filtering(nic
, -1, 1, -1);
861 fibril_mutex_unlock(&e1000
->rx_lock
);
865 /** Set unicast frames acceptance mode
867 * @param nic NIC device to update
868 * @param mode Mode to set
869 * @param addr Address list (used in mode = NIC_MULTICAST_LIST)
870 * @param addr_cnt Length of address list (used in mode = NIC_MULTICAST_LIST)
875 static int e1000_on_unicast_mode_change(nic_t
*nic
, nic_unicast_mode_t mode
,
876 const nic_address_t
*addr
, size_t addr_cnt
)
878 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
881 fibril_mutex_lock(&e1000
->rx_lock
);
884 case NIC_UNICAST_BLOCKED
:
885 disable_ra0_address_filter(e1000
);
886 e1000_clear_unicast_receive_addresses(e1000
);
887 e1000_disable_unicast_promisc(e1000
);
888 nic_report_hw_filtering(nic
, 1, -1, -1);
890 case NIC_UNICAST_DEFAULT
:
891 enable_ra0_address_filter(e1000
);
892 e1000_clear_unicast_receive_addresses(e1000
);
893 e1000_disable_unicast_promisc(e1000
);
894 nic_report_hw_filtering(nic
, 1, -1, -1);
896 case NIC_UNICAST_LIST
:
897 enable_ra0_address_filter(e1000
);
898 e1000_clear_unicast_receive_addresses(e1000
);
899 if (addr_cnt
> get_free_unicast_address_count(e1000
)) {
900 e1000_enable_unicast_promisc(e1000
);
901 nic_report_hw_filtering(nic
, 0, -1, -1);
903 e1000_disable_unicast_promisc(e1000
);
904 e1000_add_unicast_receive_addresses(e1000
, addr
, addr_cnt
);
905 nic_report_hw_filtering(nic
, 1, -1, -1);
908 case NIC_UNICAST_PROMISC
:
909 e1000_enable_unicast_promisc(e1000
);
910 enable_ra0_address_filter(e1000
);
911 e1000_clear_unicast_receive_addresses(e1000
);
912 nic_report_hw_filtering(nic
, 1, -1, -1);
919 fibril_mutex_unlock(&e1000
->rx_lock
);
923 /** Set broadcast frames acceptance mode
925 * @param nic NIC device to update
926 * @param mode Mode to set
931 static int e1000_on_broadcast_mode_change(nic_t
*nic
, nic_broadcast_mode_t mode
)
933 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
936 fibril_mutex_lock(&e1000
->rx_lock
);
939 case NIC_BROADCAST_BLOCKED
:
940 e1000_disable_broadcast_accept(e1000
);
942 case NIC_BROADCAST_ACCEPTED
:
943 e1000_enable_broadcast_accept(e1000
);
950 fibril_mutex_unlock(&e1000
->rx_lock
);
954 /** Check if receiving is enabled
956 * @param e1000 E1000 data structure
958 * @return true if receiving is enabled
961 static bool e1000_is_rx_enabled(e1000_t
*e1000
)
963 if (E1000_REG_READ(e1000
, E1000_RCTL
) & (RCTL_EN
))
971 * @param e1000 E1000 data structure
974 static void e1000_enable_rx(e1000_t
*e1000
)
976 /* Set Receive Enable Bit */
977 E1000_REG_WRITE(e1000
, E1000_RCTL
,
978 E1000_REG_READ(e1000
, E1000_RCTL
) | (RCTL_EN
));
981 /** Disable receiving
983 * @param e1000 E1000 data structure
986 static void e1000_disable_rx(e1000_t
*e1000
)
988 /* Clear Receive Enable Bit */
989 E1000_REG_WRITE(e1000
, E1000_RCTL
,
990 E1000_REG_READ(e1000
, E1000_RCTL
) & ~(RCTL_EN
));
995 * @param nic NIC device to update
996 * @param vlan_mask VLAN mask
999 static void e1000_on_vlan_mask_change(nic_t
*nic
,
1000 const nic_vlan_mask_t
*vlan_mask
)
1002 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1004 fibril_mutex_lock(&e1000
->rx_lock
);
1008 * Disable receiving, so that frame matching
1009 * partially written VLAN is not received.
1011 bool rx_enabled
= e1000_is_rx_enabled(e1000
);
1013 e1000_disable_rx(e1000
);
1015 for (unsigned int i
= 0; i
< NIC_VLAN_BITMAP_SIZE
; i
+= 4) {
1016 uint32_t bitmap_part
=
1017 ((uint32_t) vlan_mask
->bitmap
[i
]) |
1018 (((uint32_t) vlan_mask
->bitmap
[i
+ 1]) << 8) |
1019 (((uint32_t) vlan_mask
->bitmap
[i
+ 2]) << 16) |
1020 (((uint32_t) vlan_mask
->bitmap
[i
+ 3]) << 24);
1021 E1000_REG_WRITE(e1000
, E1000_VFTA_ARRAY(i
/ 4), bitmap_part
);
1024 e1000_enable_vlan_filter(e1000
);
1026 e1000_enable_rx(e1000
);
1028 e1000_disable_vlan_filter(e1000
);
1030 fibril_mutex_unlock(&e1000
->rx_lock
);
1035 * @param device E1000 device
1036 * @param tag VLAN tag
1042 static int e1000_vlan_set_tag(ddf_fun_t
*fun
, uint16_t tag
, bool add
,
1045 /* VLAN CFI bit cannot be set */
1046 if (tag
& VLANTAG_CFI
)
1050 * CTRL.VME is neccessary for both strip and add
1051 * but CTRL.VME means stripping tags on receive.
1056 e1000_t
*e1000
= DRIVER_DATA_FUN(fun
);
1058 e1000
->vlan_tag
= tag
;
1059 e1000
->vlan_tag_add
= add
;
1061 fibril_mutex_lock(&e1000
->ctrl_lock
);
1063 uint32_t ctrl
= E1000_REG_READ(e1000
, E1000_CTRL
);
1069 E1000_REG_WRITE(e1000
, E1000_CTRL
, ctrl
);
1071 fibril_mutex_unlock(&e1000
->ctrl_lock
);
1075 /** Fill receive descriptor with new empty buffer
1077 * Store frame in e1000->rx_frame_phys
1079 * @param nic NIC data stricture
1080 * @param offset Receive descriptor offset
1083 static void e1000_fill_new_rx_descriptor(nic_t
*nic
, size_t offset
)
1085 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1087 e1000_rx_descriptor_t
*rx_descriptor
= (e1000_rx_descriptor_t
*)
1088 (e1000
->rx_ring_virt
+ offset
* sizeof(e1000_rx_descriptor_t
));
1090 rx_descriptor
->phys_addr
= PTR_TO_U64(e1000
->rx_frame_phys
[offset
]);
1091 rx_descriptor
->length
= 0;
1092 rx_descriptor
->checksum
= 0;
1093 rx_descriptor
->status
= 0;
1094 rx_descriptor
->errors
= 0;
1095 rx_descriptor
->special
= 0;
1098 /** Clear receive descriptor
1100 * @param e1000 E1000 data
1101 * @param offset Receive descriptor offset
1104 static void e1000_clear_rx_descriptor(e1000_t
*e1000
, unsigned int offset
)
1106 e1000_rx_descriptor_t
*rx_descriptor
= (e1000_rx_descriptor_t
*)
1107 (e1000
->rx_ring_virt
+ offset
* sizeof(e1000_rx_descriptor_t
));
1109 rx_descriptor
->length
= 0;
1110 rx_descriptor
->checksum
= 0;
1111 rx_descriptor
->status
= 0;
1112 rx_descriptor
->errors
= 0;
1113 rx_descriptor
->special
= 0;
1116 /** Clear receive descriptor
1118 * @param nic NIC data
1119 * @param offset Receive descriptor offset
1122 static void e1000_clear_tx_descriptor(nic_t
*nic
, unsigned int offset
)
1124 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1126 e1000_tx_descriptor_t
*tx_descriptor
= (e1000_tx_descriptor_t
*)
1127 (e1000
->tx_ring_virt
+ offset
* sizeof(e1000_tx_descriptor_t
));
1129 tx_descriptor
->phys_addr
= 0;
1130 tx_descriptor
->length
= 0;
1131 tx_descriptor
->checksum_offset
= 0;
1132 tx_descriptor
->command
= 0;
1133 tx_descriptor
->status
= 0;
1134 tx_descriptor
->checksum_start_field
= 0;
1135 tx_descriptor
->special
= 0;
1138 /** Increment tail pointer for receive or transmit ring
1140 * @param tail Old Tail
1141 * @param descriptors_count Ring length
1146 static uint32_t e1000_inc_tail(uint32_t tail
, uint32_t descriptors_count
)
1148 if (tail
+ 1 == descriptors_count
)
1156 * @param nic NIC data
1159 static void e1000_receive_frames(nic_t
*nic
)
1161 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1163 fibril_mutex_lock(&e1000
->rx_lock
);
1165 uint32_t *tail_addr
= E1000_REG_ADDR(e1000
, E1000_RDT
);
1166 uint32_t next_tail
= e1000_inc_tail(*tail_addr
, E1000_RX_FRAME_COUNT
);
1168 e1000_rx_descriptor_t
*rx_descriptor
= (e1000_rx_descriptor_t
*)
1169 (e1000
->rx_ring_virt
+ next_tail
* sizeof(e1000_rx_descriptor_t
));
1171 while (rx_descriptor
->status
& 0x01) {
1172 uint32_t frame_size
= rx_descriptor
->length
- E1000_CRC_SIZE
;
1174 nic_frame_t
*frame
= nic_alloc_frame(nic
, frame_size
);
1175 if (frame
!= NULL
) {
1176 memcpy(frame
->data
, e1000
->rx_frame_virt
[next_tail
], frame_size
);
1177 nic_received_frame(nic
, frame
);
1179 ddf_msg(LVL_ERROR
, "Memory allocation failed. Frame dropped.");
1182 e1000_fill_new_rx_descriptor(nic
, next_tail
);
1184 *tail_addr
= e1000_inc_tail(*tail_addr
, E1000_RX_FRAME_COUNT
);
1185 next_tail
= e1000_inc_tail(*tail_addr
, E1000_RX_FRAME_COUNT
);
1187 rx_descriptor
= (e1000_rx_descriptor_t
*)
1188 (e1000
->rx_ring_virt
+ next_tail
* sizeof(e1000_rx_descriptor_t
));
1191 fibril_mutex_unlock(&e1000
->rx_lock
);
1194 /** Enable E1000 interupts
1196 * @param e1000 E1000 data structure
1199 static void e1000_enable_interrupts(e1000_t
*e1000
)
1201 E1000_REG_WRITE(e1000
, E1000_IMS
, ICR_RXT0
);
1204 /** Disable E1000 interupts
1206 * @param e1000 E1000 data structure
1209 static void e1000_disable_interrupts(e1000_t
*e1000
)
1211 E1000_REG_WRITE(e1000
, E1000_IMS
, 0);
1214 /** Interrupt handler implementation
1216 * This function is called from e1000_interrupt_handler()
1219 * @param nic NIC data
1220 * @param icr ICR register value
1223 static void e1000_interrupt_handler_impl(nic_t
*nic
, uint32_t icr
)
1226 e1000_receive_frames(nic
);
1229 /** Handle device interrupt
1231 * @param dev E1000 device
1232 * @param iid IPC call id
1233 * @param icall IPC call structure
1236 static void e1000_interrupt_handler(ddf_dev_t
*dev
, ipc_callid_t iid
,
1239 uint32_t icr
= (uint32_t) IPC_GET_ARG2(*icall
);
1240 nic_t
*nic
= NIC_DATA_DEV(dev
);
1241 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1243 e1000_interrupt_handler_impl(nic
, icr
);
1244 e1000_enable_interrupts(e1000
);
1247 /** Register interrupt handler for the card in the system
1249 * Note: The global irq_reg_mutex is locked because of work with global
1252 * @param nic Driver data
1254 * @return EOK if the handler was registered
1255 * @return Negative error code otherwise
1258 inline static int e1000_register_int_handler(nic_t
*nic
)
1260 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1262 /* Lock the mutex in whole driver while working with global structure */
1263 fibril_mutex_lock(&irq_reg_mutex
);
1265 e1000_irq_code
.ranges
[0].base
= (uintptr_t) e1000
->reg_base_phys
;
1266 e1000_irq_code
.cmds
[0].addr
= e1000
->reg_base_phys
+ E1000_ICR
;
1267 e1000_irq_code
.cmds
[2].addr
= e1000
->reg_base_phys
+ E1000_IMC
;
1269 int rc
= register_interrupt_handler(nic_get_ddf_dev(nic
),
1270 e1000
->irq
, e1000_interrupt_handler
, &e1000_irq_code
);
1272 fibril_mutex_unlock(&irq_reg_mutex
);
1276 /** Force receiving all frames in the receive buffer
1278 * @param nic NIC data
1281 static void e1000_poll(nic_t
*nic
)
1285 e1000_t
*e1000
= nic_get_specific(nic
);
1288 uint32_t icr
= E1000_REG_READ(e1000
, E1000_ICR
);
1289 e1000_interrupt_handler_impl(nic
, icr
);
1292 /** Calculates ITR register interrupt from timeval structure
1294 * @param period Period
1297 static uint16_t e1000_calculate_itr_interval(const struct timeval
*period
)
1299 // TODO: use also tv_sec
1300 return e1000_calculate_itr_interval_from_usecs(period
->tv_usec
);
1303 /** Set polling mode
1305 * @param device Device to set
1306 * @param mode Mode to set
1307 * @param period Period for NIC_POLL_PERIODIC
1309 * @return EOK if succeed
1310 * @return ENOTSUP if the mode is not supported
1313 static int e1000_poll_mode_change(nic_t
*nic
, nic_poll_mode_t mode
,
1314 const struct timeval
*period
)
1318 e1000_t
*e1000
= nic_get_specific(nic
);
1322 case NIC_POLL_IMMEDIATE
:
1323 E1000_REG_WRITE(e1000
, E1000_ITR
, 0);
1324 e1000_enable_interrupts(e1000
);
1326 case NIC_POLL_ON_DEMAND
:
1327 e1000_disable_interrupts(e1000
);
1329 case NIC_POLL_PERIODIC
:
1331 uint16_t itr_interval
= e1000_calculate_itr_interval(period
);
1332 E1000_REG_WRITE(e1000
, E1000_ITR
, (uint32_t) itr_interval
);
1333 e1000_enable_interrupts(e1000
);
1342 /** Initialize receive registers
1344 * @param e1000 E1000 data structure
1347 static void e1000_initialize_rx_registers(e1000_t
*e1000
)
1349 E1000_REG_WRITE(e1000
, E1000_RDLEN
, E1000_RX_FRAME_COUNT
* 16);
1350 E1000_REG_WRITE(e1000
, E1000_RDH
, 0);
1352 /* It is not posible to let HW use all descriptors */
1353 E1000_REG_WRITE(e1000
, E1000_RDT
, E1000_RX_FRAME_COUNT
- 1);
1355 /* Set Broadcast Enable Bit */
1356 E1000_REG_WRITE(e1000
, E1000_RCTL
, RCTL_BAM
);
1359 /** Initialize receive structure
1361 * @param nic NIC data
1363 * @return EOK if succeed
1364 * @return Negative error code otherwise
1367 static int e1000_initialize_rx_structure(nic_t
*nic
)
1369 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1370 fibril_mutex_lock(&e1000
->rx_lock
);
1372 e1000
->rx_ring_virt
= AS_AREA_ANY
;
1373 int rc
= dmamem_map_anonymous(
1374 E1000_RX_FRAME_COUNT
* sizeof(e1000_rx_descriptor_t
),
1375 DMAMEM_4GiB
, AS_AREA_READ
| AS_AREA_WRITE
, 0,
1376 &e1000
->rx_ring_phys
, &e1000
->rx_ring_virt
);
1380 E1000_REG_WRITE(e1000
, E1000_RDBAH
,
1381 (uint32_t) (PTR_TO_U64(e1000
->rx_ring_phys
) >> 32));
1382 E1000_REG_WRITE(e1000
, E1000_RDBAL
,
1383 (uint32_t) PTR_TO_U64(e1000
->rx_ring_phys
));
1385 e1000
->rx_frame_phys
= (uintptr_t *)
1386 calloc(E1000_RX_FRAME_COUNT
, sizeof(uintptr_t));
1387 e1000
->rx_frame_virt
=
1388 calloc(E1000_RX_FRAME_COUNT
, sizeof(void *));
1389 if ((e1000
->rx_frame_phys
== NULL
) || (e1000
->rx_frame_virt
== NULL
)) {
1394 for (size_t i
= 0; i
< E1000_RX_FRAME_COUNT
; i
++) {
1395 uintptr_t frame_phys
;
1396 void *frame_virt
= AS_AREA_ANY
;
1398 rc
= dmamem_map_anonymous(E1000_MAX_SEND_FRAME_SIZE
,
1399 DMAMEM_4GiB
, AS_AREA_READ
| AS_AREA_WRITE
, 0,
1400 &frame_phys
, &frame_virt
);
1404 e1000
->rx_frame_phys
[i
] = frame_phys
;
1405 e1000
->rx_frame_virt
[i
] = frame_virt
;
1408 /* Write descriptor */
1409 for (size_t i
= 0; i
< E1000_RX_FRAME_COUNT
; i
++)
1410 e1000_fill_new_rx_descriptor(nic
, i
);
1412 e1000_initialize_rx_registers(e1000
);
1414 fibril_mutex_unlock(&e1000
->rx_lock
);
1418 for (size_t i
= 0; i
< E1000_RX_FRAME_COUNT
; i
++) {
1419 if (e1000
->rx_frame_virt
[i
] != NULL
) {
1420 dmamem_unmap_anonymous(e1000
->rx_frame_virt
[i
]);
1421 e1000
->rx_frame_phys
[i
] = 0;
1422 e1000
->rx_frame_virt
[i
] = NULL
;
1426 if (e1000
->rx_frame_phys
!= NULL
) {
1427 free(e1000
->rx_frame_phys
);
1428 e1000
->rx_frame_phys
= NULL
;
1431 if (e1000
->rx_frame_virt
!= NULL
) {
1432 free(e1000
->rx_frame_virt
);
1433 e1000
->rx_frame_virt
= NULL
;
1439 /** Uninitialize receive structure
1441 * @param nic NIC data
1444 static void e1000_uninitialize_rx_structure(nic_t
*nic
)
1446 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1448 /* Write descriptor */
1449 for (unsigned int offset
= 0; offset
< E1000_RX_FRAME_COUNT
; offset
++) {
1450 dmamem_unmap_anonymous(e1000
->rx_frame_virt
[offset
]);
1451 e1000
->rx_frame_phys
[offset
] = 0;
1452 e1000
->rx_frame_virt
[offset
] = NULL
;
1455 free(e1000
->rx_frame_virt
);
1457 e1000
->rx_frame_phys
= NULL
;
1458 e1000
->rx_frame_virt
= NULL
;
1460 dmamem_unmap_anonymous(e1000
->rx_ring_virt
);
1463 /** Clear receive descriptor ring
1465 * @param e1000 E1000 data
1468 static void e1000_clear_rx_ring(e1000_t
*e1000
)
1470 /* Write descriptor */
1471 for (unsigned int offset
= 0;
1472 offset
< E1000_RX_FRAME_COUNT
;
1474 e1000_clear_rx_descriptor(e1000
, offset
);
1477 /** Initialize filters
1479 * @param e1000 E1000 data
1482 static void e1000_initialize_filters(e1000_t
*e1000
)
1484 /* Initialize address filter */
1485 e1000
->unicast_ra_count
= 0;
1486 e1000
->multicast_ra_count
= 0;
1487 e1000_clear_unicast_receive_addresses(e1000
);
1492 * @param e1000 E1000 data
1495 static void e1000_initialize_vlan(e1000_t
*e1000
)
1497 e1000
->vlan_tag_add
= false;
1500 /** Fill MAC address from EEPROM to RA[0] register
1502 * @param e1000 E1000 data
1505 static void e1000_fill_mac_from_eeprom(e1000_t
*e1000
)
1507 /* MAC address from eeprom to RA[0] */
1508 nic_address_t address
;
1509 e1000_eeprom_get_address(e1000
, &address
);
1510 e1000_write_receive_address(e1000
, 0, &address
, true);
1513 /** Initialize other registers
1515 * @param dev E1000 data.
1517 * @return EOK if succeed
1518 * @return Negative error code otherwise
1521 static void e1000_initialize_registers(e1000_t
*e1000
)
1523 E1000_REG_WRITE(e1000
, E1000_ITR
,
1524 e1000_calculate_itr_interval_from_usecs(
1525 E1000_DEFAULT_INTERRUPT_INTERVAL_USEC
));
1526 E1000_REG_WRITE(e1000
, E1000_FCAH
, 0);
1527 E1000_REG_WRITE(e1000
, E1000_FCAL
, 0);
1528 E1000_REG_WRITE(e1000
, E1000_FCT
, 0);
1529 E1000_REG_WRITE(e1000
, E1000_FCTTV
, 0);
1530 E1000_REG_WRITE(e1000
, E1000_VET
, VET_VALUE
);
1531 E1000_REG_WRITE(e1000
, E1000_CTRL
, CTRL_ASDE
);
1534 /** Initialize transmit registers
1536 * @param e1000 E1000 data.
1539 static void e1000_initialize_tx_registers(e1000_t
*e1000
)
1541 E1000_REG_WRITE(e1000
, E1000_TDLEN
, E1000_TX_FRAME_COUNT
* 16);
1542 E1000_REG_WRITE(e1000
, E1000_TDH
, 0);
1543 E1000_REG_WRITE(e1000
, E1000_TDT
, 0);
1545 E1000_REG_WRITE(e1000
, E1000_TIPG
,
1546 10 << TIPG_IPGT_SHIFT
|
1547 8 << TIPG_IPGR1_SHIFT
|
1548 6 << TIPG_IPGR2_SHIFT
);
1550 E1000_REG_WRITE(e1000
, E1000_TCTL
,
1551 0x0F << TCTL_CT_SHIFT
/* Collision Threshold */ |
1552 0x40 << TCTL_COLD_SHIFT
/* Collision Distance */ |
1553 TCTL_PSP
/* Pad Short Packets */);
1556 /** Initialize transmit structure
1558 * @param e1000 E1000 data.
1561 static int e1000_initialize_tx_structure(e1000_t
*e1000
)
1565 fibril_mutex_lock(&e1000
->tx_lock
);
1567 e1000
->tx_ring_phys
= 0;
1568 e1000
->tx_ring_virt
= AS_AREA_ANY
;
1570 e1000
->tx_frame_phys
= NULL
;
1571 e1000
->tx_frame_virt
= NULL
;
1573 int rc
= dmamem_map_anonymous(
1574 E1000_TX_FRAME_COUNT
* sizeof(e1000_tx_descriptor_t
),
1575 DMAMEM_4GiB
, AS_AREA_READ
| AS_AREA_WRITE
, 0,
1576 &e1000
->tx_ring_phys
, &e1000
->tx_ring_virt
);
1580 memset(e1000
->tx_ring_virt
, 0,
1581 E1000_TX_FRAME_COUNT
* sizeof(e1000_tx_descriptor_t
));
1583 e1000
->tx_frame_phys
= (uintptr_t *)
1584 calloc(E1000_TX_FRAME_COUNT
, sizeof(uintptr_t));
1585 e1000
->tx_frame_virt
=
1586 calloc(E1000_TX_FRAME_COUNT
, sizeof(void *));
1588 if ((e1000
->tx_frame_phys
== NULL
) || (e1000
->tx_frame_virt
== NULL
)) {
1593 for (i
= 0; i
< E1000_TX_FRAME_COUNT
; i
++) {
1594 e1000
->tx_frame_virt
[i
] = AS_AREA_ANY
;
1595 rc
= dmamem_map_anonymous(E1000_MAX_SEND_FRAME_SIZE
,
1596 DMAMEM_4GiB
, AS_AREA_READ
| AS_AREA_WRITE
,
1597 0, &e1000
->tx_frame_phys
[i
], &e1000
->tx_frame_virt
[i
]);
1602 E1000_REG_WRITE(e1000
, E1000_TDBAH
,
1603 (uint32_t) (PTR_TO_U64(e1000
->tx_ring_phys
) >> 32));
1604 E1000_REG_WRITE(e1000
, E1000_TDBAL
,
1605 (uint32_t) PTR_TO_U64(e1000
->tx_ring_phys
));
1607 e1000_initialize_tx_registers(e1000
);
1609 fibril_mutex_unlock(&e1000
->tx_lock
);
1613 if (e1000
->tx_ring_virt
!= NULL
) {
1614 dmamem_unmap_anonymous(e1000
->tx_ring_virt
);
1615 e1000
->tx_ring_virt
= NULL
;
1618 if ((e1000
->tx_frame_phys
!= NULL
) && (e1000
->tx_frame_virt
!= NULL
)) {
1619 for (i
= 0; i
< E1000_TX_FRAME_COUNT
; i
++) {
1620 if (e1000
->tx_frame_virt
[i
] != NULL
) {
1621 dmamem_unmap_anonymous(e1000
->tx_frame_virt
[i
]);
1622 e1000
->tx_frame_phys
[i
] = 0;
1623 e1000
->tx_frame_virt
[i
] = NULL
;
1628 if (e1000
->tx_frame_phys
!= NULL
) {
1629 free(e1000
->tx_frame_phys
);
1630 e1000
->tx_frame_phys
= NULL
;
1633 if (e1000
->tx_frame_virt
!= NULL
) {
1634 free(e1000
->tx_frame_virt
);
1635 e1000
->tx_frame_virt
= NULL
;
1641 /** Uninitialize transmit structure
1643 * @param nic NIC data
1646 static void e1000_uninitialize_tx_structure(e1000_t
*e1000
)
1650 for (i
= 0; i
< E1000_TX_FRAME_COUNT
; i
++) {
1651 dmamem_unmap_anonymous(e1000
->tx_frame_virt
[i
]);
1652 e1000
->tx_frame_phys
[i
] = 0;
1653 e1000
->tx_frame_virt
[i
] = NULL
;
1656 if (e1000
->tx_frame_phys
!= NULL
) {
1657 free(e1000
->tx_frame_phys
);
1658 e1000
->tx_frame_phys
= NULL
;
1661 if (e1000
->tx_frame_virt
!= NULL
) {
1662 free(e1000
->tx_frame_virt
);
1663 e1000
->tx_frame_virt
= NULL
;
1666 dmamem_unmap_anonymous(e1000
->tx_ring_virt
);
1669 /** Clear transmit descriptor ring
1671 * @param nic NIC data
1674 static void e1000_clear_tx_ring(nic_t
*nic
)
1676 /* Write descriptor */
1677 for (unsigned int offset
= 0;
1678 offset
< E1000_TX_FRAME_COUNT
;
1680 e1000_clear_tx_descriptor(nic
, offset
);
1685 * @param e1000 E1000 data
1688 static void e1000_enable_tx(e1000_t
*e1000
)
1690 /* Set Transmit Enable Bit */
1691 E1000_REG_WRITE(e1000
, E1000_TCTL
,
1692 E1000_REG_READ(e1000
, E1000_TCTL
) | (TCTL_EN
));
1695 /** Disable transmit
1697 * @param e1000 E1000 data
1700 static void e1000_disable_tx(e1000_t
*e1000
)
1702 /* Clear Transmit Enable Bit */
1703 E1000_REG_WRITE(e1000
, E1000_TCTL
,
1704 E1000_REG_READ(e1000
, E1000_TCTL
) & ~(TCTL_EN
));
1707 /** Reset E1000 device
1709 * @param e1000 The E1000 data
1712 static int e1000_reset(nic_t
*nic
)
1714 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1716 E1000_REG_WRITE(e1000
, E1000_CTRL
, CTRL_RST
);
1718 /* Wait for the reset */
1721 /* check if RST_BIT cleared */
1722 if (E1000_REG_READ(e1000
, E1000_CTRL
) & (CTRL_RST
))
1725 e1000_initialize_registers(e1000
);
1726 e1000_initialize_rx_registers(e1000
);
1727 e1000_initialize_tx_registers(e1000
);
1728 e1000_fill_mac_from_eeprom(e1000
);
1729 e1000_initialize_filters(e1000
);
1730 e1000_initialize_vlan(e1000
);
1735 /** Activate the device to receive and transmit frames
1737 * @param nic NIC driver data
1739 * @return EOK if activated successfully
1740 * @return Error code otherwise
1743 static int e1000_on_activating(nic_t
*nic
)
1747 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1749 fibril_mutex_lock(&e1000
->rx_lock
);
1750 fibril_mutex_lock(&e1000
->tx_lock
);
1751 fibril_mutex_lock(&e1000
->ctrl_lock
);
1753 e1000_enable_interrupts(e1000
);
1755 int rc
= irc_enable_interrupt(e1000
->irq
);
1757 e1000_disable_interrupts(e1000
);
1758 fibril_mutex_unlock(&e1000
->ctrl_lock
);
1759 fibril_mutex_unlock(&e1000
->tx_lock
);
1760 fibril_mutex_unlock(&e1000
->rx_lock
);
1764 e1000_clear_rx_ring(e1000
);
1765 e1000_enable_rx(e1000
);
1767 e1000_clear_tx_ring(nic
);
1768 e1000_enable_tx(e1000
);
1770 uint32_t ctrl
= E1000_REG_READ(e1000
, E1000_CTRL
);
1772 E1000_REG_WRITE(e1000
, E1000_CTRL
, ctrl
);
1774 fibril_mutex_unlock(&e1000
->ctrl_lock
);
1775 fibril_mutex_unlock(&e1000
->tx_lock
);
1776 fibril_mutex_unlock(&e1000
->rx_lock
);
1781 /** Callback for NIC_STATE_DOWN change
1783 * @param nic NIC driver data
1785 * @return EOK if succeed
1786 * @return Error code otherwise
1789 static int e1000_on_down_unlocked(nic_t
*nic
)
1791 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1793 uint32_t ctrl
= E1000_REG_READ(e1000
, E1000_CTRL
);
1795 E1000_REG_WRITE(e1000
, E1000_CTRL
, ctrl
);
1797 e1000_disable_tx(e1000
);
1798 e1000_disable_rx(e1000
);
1800 irc_disable_interrupt(e1000
->irq
);
1801 e1000_disable_interrupts(e1000
);
1804 * Wait for the for the end of all data
1805 * transfers to descriptors.
1812 /** Callback for NIC_STATE_DOWN change
1814 * @param nic NIC driver data
1816 * @return EOK if succeed
1817 * @return Error code otherwise
1820 static int e1000_on_down(nic_t
*nic
)
1822 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1824 fibril_mutex_lock(&e1000
->rx_lock
);
1825 fibril_mutex_lock(&e1000
->tx_lock
);
1826 fibril_mutex_lock(&e1000
->ctrl_lock
);
1828 int rc
= e1000_on_down_unlocked(nic
);
1830 fibril_mutex_unlock(&e1000
->ctrl_lock
);
1831 fibril_mutex_unlock(&e1000
->tx_lock
);
1832 fibril_mutex_unlock(&e1000
->rx_lock
);
1837 /** Callback for NIC_STATE_STOPPED change
1839 * @param nic NIC driver data
1841 * @return EOK if succeed
1842 * @return Error code otherwise
1845 static int e1000_on_stopping(nic_t
*nic
)
1847 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
1849 fibril_mutex_lock(&e1000
->rx_lock
);
1850 fibril_mutex_lock(&e1000
->tx_lock
);
1851 fibril_mutex_lock(&e1000
->ctrl_lock
);
1853 int rc
= e1000_on_down_unlocked(nic
);
1855 rc
= e1000_reset(nic
);
1857 fibril_mutex_unlock(&e1000
->ctrl_lock
);
1858 fibril_mutex_unlock(&e1000
->tx_lock
);
1859 fibril_mutex_unlock(&e1000
->rx_lock
);
1864 /** Create driver data structure
1866 * @return Intialized device data structure or NULL
1869 static e1000_t
*e1000_create_dev_data(ddf_dev_t
*dev
)
1871 nic_t
*nic
= nic_create_and_bind(dev
);
1875 e1000_t
*e1000
= malloc(sizeof(e1000_t
));
1877 nic_unbind_and_destroy(dev
);
1881 memset(e1000
, 0, sizeof(e1000_t
));
1883 nic_set_specific(nic
, e1000
);
1884 nic_set_send_frame_handler(nic
, e1000_send_frame
);
1885 nic_set_state_change_handlers(nic
, e1000_on_activating
,
1886 e1000_on_down
, e1000_on_stopping
);
1887 nic_set_filtering_change_handlers(nic
,
1888 e1000_on_unicast_mode_change
, e1000_on_multicast_mode_change
,
1889 e1000_on_broadcast_mode_change
, NULL
, e1000_on_vlan_mask_change
);
1890 nic_set_poll_handlers(nic
, e1000_poll_mode_change
, e1000_poll
);
1892 fibril_mutex_initialize(&e1000
->ctrl_lock
);
1893 fibril_mutex_initialize(&e1000
->rx_lock
);
1894 fibril_mutex_initialize(&e1000
->tx_lock
);
1895 fibril_mutex_initialize(&e1000
->eeprom_lock
);
1900 /** Delete driver data structure
1902 * @param data E1000 device data structure
1905 inline static void e1000_delete_dev_data(ddf_dev_t
*dev
)
1909 if (ddf_dev_data_get(dev
) != NULL
)
1910 nic_unbind_and_destroy(dev
);
1913 /** Clean up the E1000 device structure.
1915 * @param dev Device structure.
1918 static void e1000_dev_cleanup(ddf_dev_t
*dev
)
1922 e1000_delete_dev_data(dev
);
1925 /** Fill the irq and io_addr part of device data structure
1927 * The hw_resources must be obtained before calling this function
1929 * @param dev Device structure
1930 * @param hw_resources Hardware resources obtained from the parent device
1932 * @return EOK if succeed
1933 * @return Negative error code otherwise
1936 static int e1000_fill_resource_info(ddf_dev_t
*dev
,
1937 const hw_res_list_parsed_t
*hw_resources
)
1939 e1000_t
*e1000
= DRIVER_DATA_DEV(dev
);
1941 if (hw_resources
->irqs
.count
!= 1)
1944 e1000
->irq
= hw_resources
->irqs
.irqs
[0];
1945 e1000
->reg_base_phys
=
1946 MEMADDR_TO_PTR(RNGABS(hw_resources
->mem_ranges
.ranges
[0]));
1951 /** Obtain information about hardware resources of the device
1953 * The device must be connected to the parent
1955 * @param dev Device structure
1957 * @return EOK if succeed
1958 * @return Negative error code otherwise
1961 static int e1000_get_resource_info(ddf_dev_t
*dev
)
1963 assert(dev
!= NULL
);
1964 assert(NIC_DATA_DEV(dev
) != NULL
);
1966 hw_res_list_parsed_t hw_res_parsed
;
1967 hw_res_list_parsed_init(&hw_res_parsed
);
1969 /* Get hw resources form parent driver */
1970 int rc
= nic_get_resources(NIC_DATA_DEV(dev
), &hw_res_parsed
);
1974 /* Fill resources information to the device */
1975 rc
= e1000_fill_resource_info(dev
, &hw_res_parsed
);
1976 hw_res_list_parsed_clean(&hw_res_parsed
);
1981 /** Initialize the E1000 device structure
1983 * @param dev Device information
1985 * @return EOK if succeed
1986 * @return Negative error code otherwise
1989 static int e1000_device_initialize(ddf_dev_t
*dev
)
1991 /* Allocate driver data for the device. */
1992 e1000_t
*e1000
= e1000_create_dev_data(dev
);
1993 if (e1000
== NULL
) {
1994 ddf_msg(LVL_ERROR
, "Unable to allocate device softstate");
1998 /* Obtain and fill hardware resources info */
1999 int rc
= e1000_get_resource_info(dev
);
2001 ddf_msg(LVL_ERROR
, "Cannot obtain hardware resources");
2002 e1000_dev_cleanup(dev
);
2007 rc
= pci_config_space_read_16(ddf_dev_parent_sess_get(dev
), PCI_DEVICE_ID
,
2010 ddf_msg(LVL_ERROR
, "Cannot access PCI configuration space");
2011 e1000_dev_cleanup(dev
);
2015 e1000_board_t board
;
2016 switch (device_id
) {
2021 board
= E1000_82540
;
2026 board
= E1000_82541
;
2031 board
= E1000_82541REV2
;
2038 board
= E1000_82545
;
2046 board
= E1000_82546
;
2050 board
= E1000_82547
;
2053 board
= E1000_82572
;
2056 board
= E1000_80003ES2
;
2059 ddf_msg(LVL_ERROR
, "Device not supported (%#" PRIx16
")",
2061 e1000_dev_cleanup(dev
);
2068 case E1000_82541REV2
:
2071 e1000
->info
.eerd_start
= 0x01;
2072 e1000
->info
.eerd_done
= 0x10;
2073 e1000
->info
.eerd_address_offset
= 8;
2074 e1000
->info
.eerd_data_offset
= 16;
2078 case E1000_80003ES2
:
2079 e1000
->info
.eerd_start
= 0x01;
2080 e1000
->info
.eerd_done
= 0x02;
2081 e1000
->info
.eerd_address_offset
= 2;
2082 e1000
->info
.eerd_data_offset
= 16;
2089 /** Enable the I/O ports of the device.
2091 * @param dev E1000 device.
2093 * @return EOK if successed
2094 * @return Negative error code otherwise
2097 static int e1000_pio_enable(ddf_dev_t
*dev
)
2099 e1000_t
*e1000
= DRIVER_DATA_DEV(dev
);
2101 int rc
= pio_enable(e1000
->reg_base_phys
, 8 * PAGE_SIZE
,
2102 &e1000
->reg_base_virt
);
2104 return EADDRNOTAVAIL
;
2109 /** Probe and initialize the newly added device.
2111 * @param dev E1000 device.
2114 int e1000_dev_add(ddf_dev_t
*dev
)
2119 /* Initialize device structure for E1000 */
2120 int rc
= e1000_device_initialize(dev
);
2124 /* Device initialization */
2125 nic_t
*nic
= ddf_dev_data_get(dev
);
2126 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
2129 rc
= e1000_pio_enable(dev
);
2133 e1000_initialize_registers(e1000
);
2134 rc
= e1000_initialize_tx_structure(e1000
);
2138 fibril_mutex_lock(&e1000
->rx_lock
);
2140 e1000_fill_mac_from_eeprom(e1000
);
2141 e1000_initialize_filters(e1000
);
2143 fibril_mutex_unlock(&e1000
->rx_lock
);
2145 e1000_initialize_vlan(e1000
);
2147 fun
= ddf_fun_create(nic_get_ddf_dev(nic
), fun_exposed
, "port0");
2149 goto err_tx_structure
;
2150 nic_set_ddf_fun(nic
, fun
);
2151 ddf_fun_set_ops(fun
, &e1000_dev_ops
);
2153 rc
= e1000_register_int_handler(nic
);
2155 goto err_fun_create
;
2157 rc
= e1000_initialize_rx_structure(nic
);
2161 nic_address_t e1000_address
;
2162 e1000_get_address(e1000
, &e1000_address
);
2163 rc
= nic_report_address(nic
, &e1000_address
);
2165 goto err_rx_structure
;
2167 struct timeval period
;
2169 period
.tv_usec
= E1000_DEFAULT_INTERRUPT_INTERVAL_USEC
;
2170 rc
= nic_report_poll_mode(nic
, NIC_POLL_PERIODIC
, &period
);
2172 goto err_rx_structure
;
2174 rc
= ddf_fun_bind(fun
);
2178 rc
= ddf_fun_add_to_category(fun
, DEVICE_CATEGORY_NIC
);
2180 goto err_add_to_cat
;
2185 ddf_fun_unbind(fun
);
2188 e1000_uninitialize_rx_structure(nic
);
2190 unregister_interrupt_handler(dev
, DRIVER_DATA_DEV(dev
)->irq
);
2192 ddf_fun_destroy(fun
);
2193 nic_set_ddf_fun(nic
, NULL
);
2195 e1000_uninitialize_tx_structure(e1000
);
2197 // TODO: e1000_pio_disable(dev);
2199 e1000_dev_cleanup(dev
);
2203 /** Read 16-bit value from EEPROM of E1000 adapter
2205 * Read using the EERD register.
2207 * @param device E1000 device
2208 * @param eeprom_address 8-bit EEPROM address
2210 * @return 16-bit value from EEPROM
2213 static uint16_t e1000_eeprom_read(e1000_t
*e1000
, uint8_t eeprom_address
)
2215 fibril_mutex_lock(&e1000
->eeprom_lock
);
2217 /* Write address and START bit to EERD register */
2218 uint32_t write_data
= e1000
->info
.eerd_start
|
2219 (((uint32_t) eeprom_address
) <<
2220 e1000
->info
.eerd_address_offset
);
2221 E1000_REG_WRITE(e1000
, E1000_EERD
, write_data
);
2223 uint32_t eerd
= E1000_REG_READ(e1000
, E1000_EERD
);
2224 while ((eerd
& e1000
->info
.eerd_done
) == 0) {
2226 eerd
= E1000_REG_READ(e1000
, E1000_EERD
);
2229 fibril_mutex_unlock(&e1000
->eeprom_lock
);
2231 return (uint16_t) (eerd
>> e1000
->info
.eerd_data_offset
);
2234 /** Get MAC address of the E1000 adapter
2236 * @param device E1000 device
2237 * @param address Place to store the address
2238 * @param max_len Maximal addresss length to store
2240 * @return EOK if succeed
2241 * @return Negative error code otherwise
2244 static int e1000_get_address(e1000_t
*e1000
, nic_address_t
*address
)
2246 fibril_mutex_lock(&e1000
->rx_lock
);
2248 uint8_t *mac0_dest
= (uint8_t *) address
->address
;
2249 uint8_t *mac1_dest
= (uint8_t *) address
->address
+ 1;
2250 uint8_t *mac2_dest
= (uint8_t *) address
->address
+ 2;
2251 uint8_t *mac3_dest
= (uint8_t *) address
->address
+ 3;
2252 uint8_t *mac4_dest
= (uint8_t *) address
->address
+ 4;
2253 uint8_t *mac5_dest
= (uint8_t *) address
->address
+ 5;
2255 uint32_t rah
= E1000_REG_READ(e1000
, E1000_RAH_ARRAY(0));
2256 uint32_t ral
= E1000_REG_READ(e1000
, E1000_RAL_ARRAY(0));
2258 *mac0_dest
= (uint8_t) ral
;
2259 *mac1_dest
= (uint8_t) (ral
>> 8);
2260 *mac2_dest
= (uint8_t) (ral
>> 16);
2261 *mac3_dest
= (uint8_t) (ral
>> 24);
2262 *mac4_dest
= (uint8_t) rah
;
2263 *mac5_dest
= (uint8_t) (rah
>> 8);
2265 fibril_mutex_unlock(&e1000
->rx_lock
);
2269 /** Set card MAC address
2271 * @param device E1000 device
2272 * @param address Address
2274 * @return EOK if succeed
2275 * @return Negative error code otherwise
2277 static int e1000_set_addr(ddf_fun_t
*fun
, const nic_address_t
*addr
)
2279 nic_t
*nic
= NIC_DATA_FUN(fun
);
2280 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
2282 fibril_mutex_lock(&e1000
->rx_lock
);
2283 fibril_mutex_lock(&e1000
->tx_lock
);
2285 int rc
= nic_report_address(nic
, addr
);
2287 e1000_write_receive_address(e1000
, 0, addr
, false);
2289 fibril_mutex_unlock(&e1000
->tx_lock
);
2290 fibril_mutex_unlock(&e1000
->rx_lock
);
2295 static void e1000_eeprom_get_address(e1000_t
*e1000
,
2296 nic_address_t
*address
)
2298 uint16_t *mac0_dest
= (uint16_t *) address
->address
;
2299 uint16_t *mac2_dest
= (uint16_t *) (address
->address
+ 2);
2300 uint16_t *mac4_dest
= (uint16_t *) (address
->address
+ 4);
2302 *mac0_dest
= e1000_eeprom_read(e1000
, 0);
2303 *mac2_dest
= e1000_eeprom_read(e1000
, 1);
2304 *mac4_dest
= e1000_eeprom_read(e1000
, 2);
2309 * @param nic NIC driver data structure
2310 * @param data Frame data
2311 * @param size Frame size in bytes
2313 * @return EOK if succeed
2314 * @return Error code in the case of error
2317 static void e1000_send_frame(nic_t
*nic
, void *data
, size_t size
)
2321 e1000_t
*e1000
= DRIVER_DATA_NIC(nic
);
2322 fibril_mutex_lock(&e1000
->tx_lock
);
2324 uint32_t tdt
= E1000_REG_READ(e1000
, E1000_TDT
);
2325 e1000_tx_descriptor_t
*tx_descriptor_addr
= (e1000_tx_descriptor_t
*)
2326 (e1000
->tx_ring_virt
+ tdt
* sizeof(e1000_tx_descriptor_t
));
2328 bool descriptor_available
= false;
2330 /* Descriptor never used */
2331 if (tx_descriptor_addr
->length
== 0)
2332 descriptor_available
= true;
2334 /* Descriptor done */
2335 if (tx_descriptor_addr
->status
& TXDESCRIPTOR_STATUS_DD
)
2336 descriptor_available
= true;
2338 if (!descriptor_available
) {
2340 fibril_mutex_unlock(&e1000
->tx_lock
);
2344 memcpy(e1000
->tx_frame_virt
[tdt
], data
, size
);
2346 tx_descriptor_addr
->phys_addr
= PTR_TO_U64(e1000
->tx_frame_phys
[tdt
]);
2347 tx_descriptor_addr
->length
= size
;
2350 * Report status to STATUS.DD (descriptor done),
2351 * add ethernet CRC, end of packet.
2353 tx_descriptor_addr
->command
= TXDESCRIPTOR_COMMAND_RS
|
2354 TXDESCRIPTOR_COMMAND_IFCS
|
2355 TXDESCRIPTOR_COMMAND_EOP
;
2357 tx_descriptor_addr
->checksum_offset
= 0;
2358 tx_descriptor_addr
->status
= 0;
2359 if (e1000
->vlan_tag_add
) {
2360 tx_descriptor_addr
->special
= e1000
->vlan_tag
;
2361 tx_descriptor_addr
->command
|= TXDESCRIPTOR_COMMAND_VLE
;
2363 tx_descriptor_addr
->special
= 0;
2365 tx_descriptor_addr
->checksum_start_field
= 0;
2368 if (tdt
== E1000_TX_FRAME_COUNT
)
2371 E1000_REG_WRITE(e1000
, E1000_TDT
, tdt
);
2373 fibril_mutex_unlock(&e1000
->tx_lock
);
2378 printf("%s: HelenOS E1000 network adapter driver\n", NAME
);
2380 if (nic_driver_init(NAME
) != EOK
)
2383 nic_driver_implement(&e1000_driver_ops
, &e1000_dev_ops
,
2387 return ddf_driver_main(&e1000_driver
);