2 * Copyright (c) 2017 Stormshield.
3 * Copyright (c) 2017 Semihalf.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. 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.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
28 #include "opt_platform.h"
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/endian.h>
37 #include <sys/mutex.h>
38 #include <sys/kernel.h>
39 #include <sys/module.h>
40 #include <sys/socket.h>
41 #include <sys/sysctl.h>
43 #include <sys/taskqueue.h>
48 #include <net/ethernet.h>
51 #include <net/if_arp.h>
52 #include <net/if_dl.h>
53 #include <net/if_media.h>
54 #include <net/if_types.h>
55 #include <net/if_vlan_var.h>
57 #include <netinet/in_systm.h>
58 #include <netinet/in.h>
59 #include <netinet/ip.h>
60 #include <netinet/tcp_lro.h>
62 #include <sys/sockio.h>
64 #include <machine/bus.h>
66 #include <machine/resource.h>
68 #include <dev/mii/mii.h>
69 #include <dev/mii/miivar.h>
71 #include <dev/ofw/openfirm.h>
72 #include <dev/ofw/ofw_bus.h>
73 #include <dev/ofw/ofw_bus_subr.h>
75 #include <dev/mdio/mdio.h>
77 #include <arm/mv/mvvar.h>
79 #if !defined(__aarch64__)
80 #include <arm/mv/mvreg.h>
81 #include <arm/mv/mvwin.h>
84 #include "if_mvnetareg.h"
85 #include "if_mvnetavar.h"
87 #include "miibus_if.h"
91 #define STATIC /* nothing */
96 #define DASSERT(x) KASSERT((x), (#x))
98 #define A3700_TCLK_250MHZ 250000000
100 /* Device Register Initialization */
101 STATIC int mvneta_initreg(struct ifnet *);
103 /* Descriptor Ring Control for each of queues */
104 STATIC int mvneta_ring_alloc_rx_queue(struct mvneta_softc *, int);
105 STATIC int mvneta_ring_alloc_tx_queue(struct mvneta_softc *, int);
106 STATIC void mvneta_ring_dealloc_rx_queue(struct mvneta_softc *, int);
107 STATIC void mvneta_ring_dealloc_tx_queue(struct mvneta_softc *, int);
108 STATIC int mvneta_ring_init_rx_queue(struct mvneta_softc *, int);
109 STATIC int mvneta_ring_init_tx_queue(struct mvneta_softc *, int);
110 STATIC void mvneta_ring_flush_rx_queue(struct mvneta_softc *, int);
111 STATIC void mvneta_ring_flush_tx_queue(struct mvneta_softc *, int);
112 STATIC void mvneta_dmamap_cb(void *, bus_dma_segment_t *, int, int);
113 STATIC int mvneta_dma_create(struct mvneta_softc *);
115 /* Rx/Tx Queue Control */
116 STATIC int mvneta_rx_queue_init(struct ifnet *, int);
117 STATIC int mvneta_tx_queue_init(struct ifnet *, int);
118 STATIC int mvneta_rx_queue_enable(struct ifnet *, int);
119 STATIC int mvneta_tx_queue_enable(struct ifnet *, int);
120 STATIC void mvneta_rx_lockq(struct mvneta_softc *, int);
121 STATIC void mvneta_rx_unlockq(struct mvneta_softc *, int);
122 STATIC void mvneta_tx_lockq(struct mvneta_softc *, int);
123 STATIC void mvneta_tx_unlockq(struct mvneta_softc *, int);
125 /* Interrupt Handlers */
126 STATIC void mvneta_disable_intr(struct mvneta_softc *);
127 STATIC void mvneta_enable_intr(struct mvneta_softc *);
128 STATIC void mvneta_rxtxth_intr(void *);
129 STATIC int mvneta_misc_intr(struct mvneta_softc *);
130 STATIC void mvneta_tick(void *);
131 /* struct ifnet and mii callbacks*/
132 STATIC int mvneta_xmitfast_locked(struct mvneta_softc *, int, struct mbuf **);
133 STATIC int mvneta_xmit_locked(struct mvneta_softc *, int);
134 #ifdef MVNETA_MULTIQUEUE
135 STATIC int mvneta_transmit(struct ifnet *, struct mbuf *);
136 #else /* !MVNETA_MULTIQUEUE */
137 STATIC void mvneta_start(struct ifnet *);
139 STATIC void mvneta_qflush(struct ifnet *);
140 STATIC void mvneta_tx_task(void *, int);
141 STATIC int mvneta_ioctl(struct ifnet *, u_long, caddr_t);
142 STATIC void mvneta_init(void *);
143 STATIC void mvneta_init_locked(void *);
144 STATIC void mvneta_stop(struct mvneta_softc *);
145 STATIC void mvneta_stop_locked(struct mvneta_softc *);
146 STATIC int mvneta_mediachange(struct ifnet *);
147 STATIC void mvneta_mediastatus(struct ifnet *, struct ifmediareq *);
148 STATIC void mvneta_portup(struct mvneta_softc *);
149 STATIC void mvneta_portdown(struct mvneta_softc *);
151 /* Link State Notify */
152 STATIC void mvneta_update_autoneg(struct mvneta_softc *, int);
153 STATIC int mvneta_update_media(struct mvneta_softc *, int);
154 STATIC void mvneta_adjust_link(struct mvneta_softc *);
155 STATIC void mvneta_update_eee(struct mvneta_softc *);
156 STATIC void mvneta_update_fc(struct mvneta_softc *);
157 STATIC void mvneta_link_isr(struct mvneta_softc *);
158 STATIC void mvneta_linkupdate(struct mvneta_softc *, boolean_t);
159 STATIC void mvneta_linkup(struct mvneta_softc *);
160 STATIC void mvneta_linkdown(struct mvneta_softc *);
161 STATIC void mvneta_linkreset(struct mvneta_softc *);
164 STATIC int mvneta_tx_queue(struct mvneta_softc *, struct mbuf **, int);
165 STATIC void mvneta_tx_set_csumflag(struct ifnet *,
166 struct mvneta_tx_desc *, struct mbuf *);
167 STATIC void mvneta_tx_queue_complete(struct mvneta_softc *, int);
168 STATIC void mvneta_tx_drain(struct mvneta_softc *);
171 STATIC int mvneta_rx(struct mvneta_softc *, int, int);
172 STATIC void mvneta_rx_queue(struct mvneta_softc *, int, int);
173 STATIC void mvneta_rx_queue_refill(struct mvneta_softc *, int);
174 STATIC void mvneta_rx_set_csumflag(struct ifnet *,
175 struct mvneta_rx_desc *, struct mbuf *);
176 STATIC void mvneta_rx_buf_free(struct mvneta_softc *, struct mvneta_buf *);
178 /* MAC address filter */
179 STATIC void mvneta_filter_setup(struct mvneta_softc *);
182 STATIC int sysctl_read_mib(SYSCTL_HANDLER_ARGS);
183 STATIC int sysctl_clear_mib(SYSCTL_HANDLER_ARGS);
184 STATIC int sysctl_set_queue_rxthtime(SYSCTL_HANDLER_ARGS);
185 STATIC void sysctl_mvneta_init(struct mvneta_softc *);
188 STATIC void mvneta_clear_mib(struct mvneta_softc *);
189 STATIC uint64_t mvneta_read_mib(struct mvneta_softc *, int);
190 STATIC void mvneta_update_mib(struct mvneta_softc *);
193 STATIC boolean_t mvneta_find_ethernet_prop_switch(phandle_t, phandle_t);
194 STATIC boolean_t mvneta_has_switch(device_t);
196 #define mvneta_sc_lock(sc) mtx_lock(&sc->mtx)
197 #define mvneta_sc_unlock(sc) mtx_unlock(&sc->mtx)
199 STATIC struct mtx mii_mutex;
200 STATIC int mii_init = 0;
203 STATIC int mvneta_detach(device_t);
205 STATIC int mvneta_miibus_readreg(device_t, int, int);
206 STATIC int mvneta_miibus_writereg(device_t, int, int, int);
209 STATIC uint32_t mvneta_get_clk(void);
211 static device_method_t mvneta_methods[] = {
212 /* Device interface */
213 DEVMETHOD(device_detach, mvneta_detach),
215 DEVMETHOD(miibus_readreg, mvneta_miibus_readreg),
216 DEVMETHOD(miibus_writereg, mvneta_miibus_writereg),
218 DEVMETHOD(mdio_readreg, mvneta_miibus_readreg),
219 DEVMETHOD(mdio_writereg, mvneta_miibus_writereg),
225 DEFINE_CLASS_0(mvneta, mvneta_driver, mvneta_methods, sizeof(struct mvneta_softc));
227 DRIVER_MODULE(miibus, mvneta, miibus_driver, miibus_devclass, 0, 0);
228 DRIVER_MODULE(mdio, mvneta, mdio_driver, mdio_devclass, 0, 0);
229 MODULE_DEPEND(mvneta, mdio, 1, 1, 1);
230 MODULE_DEPEND(mvneta, ether, 1, 1, 1);
231 MODULE_DEPEND(mvneta, miibus, 1, 1, 1);
232 MODULE_DEPEND(mvneta, mvxpbm, 1, 1, 1);
235 * List of MIB register and names
239 MVNETA_MIB_RX_GOOD_OCT_IDX,
240 MVNETA_MIB_RX_BAD_OCT_IDX,
241 MVNETA_MIB_TX_MAC_TRNS_ERR_IDX,
242 MVNETA_MIB_RX_GOOD_FRAME_IDX,
243 MVNETA_MIB_RX_BAD_FRAME_IDX,
244 MVNETA_MIB_RX_BCAST_FRAME_IDX,
245 MVNETA_MIB_RX_MCAST_FRAME_IDX,
246 MVNETA_MIB_RX_FRAME64_OCT_IDX,
247 MVNETA_MIB_RX_FRAME127_OCT_IDX,
248 MVNETA_MIB_RX_FRAME255_OCT_IDX,
249 MVNETA_MIB_RX_FRAME511_OCT_IDX,
250 MVNETA_MIB_RX_FRAME1023_OCT_IDX,
251 MVNETA_MIB_RX_FRAMEMAX_OCT_IDX,
252 MVNETA_MIB_TX_GOOD_OCT_IDX,
253 MVNETA_MIB_TX_GOOD_FRAME_IDX,
254 MVNETA_MIB_TX_EXCES_COL_IDX,
255 MVNETA_MIB_TX_MCAST_FRAME_IDX,
256 MVNETA_MIB_TX_BCAST_FRAME_IDX,
257 MVNETA_MIB_TX_MAC_CTL_ERR_IDX,
258 MVNETA_MIB_FC_SENT_IDX,
259 MVNETA_MIB_FC_GOOD_IDX,
260 MVNETA_MIB_FC_BAD_IDX,
261 MVNETA_MIB_PKT_UNDERSIZE_IDX,
262 MVNETA_MIB_PKT_FRAGMENT_IDX,
263 MVNETA_MIB_PKT_OVERSIZE_IDX,
264 MVNETA_MIB_PKT_JABBER_IDX,
265 MVNETA_MIB_MAC_RX_ERR_IDX,
266 MVNETA_MIB_MAC_CRC_ERR_IDX,
267 MVNETA_MIB_MAC_COL_IDX,
268 MVNETA_MIB_MAC_LATE_COL_IDX,
271 STATIC struct mvneta_mib_def {
274 const char *sysctl_name;
276 } mvneta_mib_list[] = {
277 [MVNETA_MIB_RX_GOOD_OCT_IDX] = {MVNETA_MIB_RX_GOOD_OCT, 1,
278 "rx_good_oct", "Good Octets Rx"},
279 [MVNETA_MIB_RX_BAD_OCT_IDX] = {MVNETA_MIB_RX_BAD_OCT, 0,
280 "rx_bad_oct", "Bad Octets Rx"},
281 [MVNETA_MIB_TX_MAC_TRNS_ERR_IDX] = {MVNETA_MIB_TX_MAC_TRNS_ERR, 0,
282 "tx_mac_err", "MAC Transmit Error"},
283 [MVNETA_MIB_RX_GOOD_FRAME_IDX] = {MVNETA_MIB_RX_GOOD_FRAME, 0,
284 "rx_good_frame", "Good Frames Rx"},
285 [MVNETA_MIB_RX_BAD_FRAME_IDX] = {MVNETA_MIB_RX_BAD_FRAME, 0,
286 "rx_bad_frame", "Bad Frames Rx"},
287 [MVNETA_MIB_RX_BCAST_FRAME_IDX] = {MVNETA_MIB_RX_BCAST_FRAME, 0,
288 "rx_bcast_frame", "Broadcast Frames Rx"},
289 [MVNETA_MIB_RX_MCAST_FRAME_IDX] = {MVNETA_MIB_RX_MCAST_FRAME, 0,
290 "rx_mcast_frame", "Multicast Frames Rx"},
291 [MVNETA_MIB_RX_FRAME64_OCT_IDX] = {MVNETA_MIB_RX_FRAME64_OCT, 0,
292 "rx_frame_1_64", "Frame Size 1 - 64"},
293 [MVNETA_MIB_RX_FRAME127_OCT_IDX] = {MVNETA_MIB_RX_FRAME127_OCT, 0,
294 "rx_frame_65_127", "Frame Size 65 - 127"},
295 [MVNETA_MIB_RX_FRAME255_OCT_IDX] = {MVNETA_MIB_RX_FRAME255_OCT, 0,
296 "rx_frame_128_255", "Frame Size 128 - 255"},
297 [MVNETA_MIB_RX_FRAME511_OCT_IDX] = {MVNETA_MIB_RX_FRAME511_OCT, 0,
298 "rx_frame_256_511", "Frame Size 256 - 511"},
299 [MVNETA_MIB_RX_FRAME1023_OCT_IDX] = {MVNETA_MIB_RX_FRAME1023_OCT, 0,
300 "rx_frame_512_1023", "Frame Size 512 - 1023"},
301 [MVNETA_MIB_RX_FRAMEMAX_OCT_IDX] = {MVNETA_MIB_RX_FRAMEMAX_OCT, 0,
302 "rx_fame_1024_max", "Frame Size 1024 - Max"},
303 [MVNETA_MIB_TX_GOOD_OCT_IDX] = {MVNETA_MIB_TX_GOOD_OCT, 1,
304 "tx_good_oct", "Good Octets Tx"},
305 [MVNETA_MIB_TX_GOOD_FRAME_IDX] = {MVNETA_MIB_TX_GOOD_FRAME, 0,
306 "tx_good_frame", "Good Frames Tx"},
307 [MVNETA_MIB_TX_EXCES_COL_IDX] = {MVNETA_MIB_TX_EXCES_COL, 0,
308 "tx_exces_collision", "Excessive Collision"},
309 [MVNETA_MIB_TX_MCAST_FRAME_IDX] = {MVNETA_MIB_TX_MCAST_FRAME, 0,
310 "tx_mcast_frame", "Multicast Frames Tx"},
311 [MVNETA_MIB_TX_BCAST_FRAME_IDX] = {MVNETA_MIB_TX_BCAST_FRAME, 0,
312 "tx_bcast_frame", "Broadcast Frames Tx"},
313 [MVNETA_MIB_TX_MAC_CTL_ERR_IDX] = {MVNETA_MIB_TX_MAC_CTL_ERR, 0,
314 "tx_mac_ctl_err", "Unknown MAC Control"},
315 [MVNETA_MIB_FC_SENT_IDX] = {MVNETA_MIB_FC_SENT, 0,
316 "fc_tx", "Flow Control Tx"},
317 [MVNETA_MIB_FC_GOOD_IDX] = {MVNETA_MIB_FC_GOOD, 0,
318 "fc_rx_good", "Good Flow Control Rx"},
319 [MVNETA_MIB_FC_BAD_IDX] = {MVNETA_MIB_FC_BAD, 0,
320 "fc_rx_bad", "Bad Flow Control Rx"},
321 [MVNETA_MIB_PKT_UNDERSIZE_IDX] = {MVNETA_MIB_PKT_UNDERSIZE, 0,
322 "pkt_undersize", "Undersized Packets Rx"},
323 [MVNETA_MIB_PKT_FRAGMENT_IDX] = {MVNETA_MIB_PKT_FRAGMENT, 0,
324 "pkt_fragment", "Fragmented Packets Rx"},
325 [MVNETA_MIB_PKT_OVERSIZE_IDX] = {MVNETA_MIB_PKT_OVERSIZE, 0,
326 "pkt_oversize", "Oversized Packets Rx"},
327 [MVNETA_MIB_PKT_JABBER_IDX] = {MVNETA_MIB_PKT_JABBER, 0,
328 "pkt_jabber", "Jabber Packets Rx"},
329 [MVNETA_MIB_MAC_RX_ERR_IDX] = {MVNETA_MIB_MAC_RX_ERR, 0,
330 "mac_rx_err", "MAC Rx Errors"},
331 [MVNETA_MIB_MAC_CRC_ERR_IDX] = {MVNETA_MIB_MAC_CRC_ERR, 0,
332 "mac_crc_err", "MAC CRC Errors"},
333 [MVNETA_MIB_MAC_COL_IDX] = {MVNETA_MIB_MAC_COL, 0,
334 "mac_collision", "MAC Collision"},
335 [MVNETA_MIB_MAC_LATE_COL_IDX] = {MVNETA_MIB_MAC_LATE_COL, 0,
336 "mac_late_collision", "MAC Late Collision"},
339 static struct resource_spec res_spec[] = {
340 { SYS_RES_MEMORY, 0, RF_ACTIVE },
341 { SYS_RES_IRQ, 0, RF_ACTIVE },
346 driver_intr_t *handler;
349 { mvneta_rxtxth_intr, "MVNETA aggregated interrupt" },
355 #if defined(__aarch64__)
356 return (A3700_TCLK_250MHZ);
363 mvneta_set_mac_address(struct mvneta_softc *sc, uint8_t *addr)
368 mac_l = (addr[4] << 8) | (addr[5]);
369 mac_h = (addr[0] << 24) | (addr[1] << 16) |
370 (addr[2] << 8) | (addr[3] << 0);
372 MVNETA_WRITE(sc, MVNETA_MACAL, mac_l);
373 MVNETA_WRITE(sc, MVNETA_MACAH, mac_h);
378 mvneta_get_mac_address(struct mvneta_softc *sc, uint8_t *addr)
380 uint32_t mac_l, mac_h;
383 if (mvneta_fdt_mac_address(sc, addr) == 0)
387 * Fall back -- use the currently programmed address.
389 mac_l = MVNETA_READ(sc, MVNETA_MACAL);
390 mac_h = MVNETA_READ(sc, MVNETA_MACAH);
391 if (mac_l == 0 && mac_h == 0) {
393 * Generate pseudo-random MAC.
394 * Set lower part to random number | unit number.
396 mac_l = arc4random() & ~0xff;
397 mac_l |= device_get_unit(sc->dev) & 0xff;
398 mac_h = arc4random();
399 mac_h &= ~(3 << 24); /* Clear multicast and LAA bits */
401 device_printf(sc->dev,
402 "Could not acquire MAC address. "
403 "Using randomized one.\n");
407 addr[0] = (mac_h & 0xff000000) >> 24;
408 addr[1] = (mac_h & 0x00ff0000) >> 16;
409 addr[2] = (mac_h & 0x0000ff00) >> 8;
410 addr[3] = (mac_h & 0x000000ff);
411 addr[4] = (mac_l & 0x0000ff00) >> 8;
412 addr[5] = (mac_l & 0x000000ff);
417 mvneta_find_ethernet_prop_switch(phandle_t ethernet, phandle_t node)
420 phandle_t child, switch_eth_handle, switch_eth;
422 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
423 if (OF_getencprop(child, "ethernet", (void*)&switch_eth_handle,
424 sizeof(switch_eth_handle)) > 0) {
425 if (switch_eth_handle > 0) {
426 switch_eth = OF_node_from_xref(
429 if (switch_eth == ethernet)
434 ret = mvneta_find_ethernet_prop_switch(ethernet, child);
443 mvneta_has_switch(device_t self)
447 node = ofw_bus_get_node(self);
449 return mvneta_find_ethernet_prop_switch(node, OF_finddevice("/"));
453 mvneta_dma_create(struct mvneta_softc *sc)
455 size_t maxsize, maxsegsz;
462 maxsize = maxsegsz = sizeof(struct mvneta_tx_desc) * MVNETA_TX_RING_CNT;
464 error = bus_dma_tag_create(
465 bus_get_dma_tag(sc->dev), /* parent */
466 16, 0, /* alignment, boundary */
467 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
468 BUS_SPACE_MAXADDR, /* highaddr */
469 NULL, NULL, /* filtfunc, filtfuncarg */
470 maxsize, /* maxsize */
472 maxsegsz, /* maxsegsz */
474 NULL, NULL, /* lockfunc, lockfuncarg */
475 &sc->tx_dtag); /* dmat */
477 device_printf(sc->dev,
478 "Failed to create DMA tag for Tx descriptors.\n");
481 error = bus_dma_tag_create(
482 bus_get_dma_tag(sc->dev), /* parent */
483 1, 0, /* alignment, boundary */
484 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
485 BUS_SPACE_MAXADDR, /* highaddr */
486 NULL, NULL, /* filtfunc, filtfuncarg */
487 MVNETA_MAX_FRAME, /* maxsize */
488 MVNETA_TX_SEGLIMIT, /* nsegments */
489 MVNETA_MAX_FRAME, /* maxsegsz */
490 BUS_DMA_ALLOCNOW, /* flags */
491 NULL, NULL, /* lockfunc, lockfuncarg */
494 device_printf(sc->dev,
495 "Failed to create DMA tag for Tx mbufs.\n");
499 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
500 error = mvneta_ring_alloc_tx_queue(sc, q);
502 device_printf(sc->dev,
503 "Failed to allocate DMA safe memory for TxQ: %zu\n", q);
511 /* Create tag for Rx descripors */
512 error = bus_dma_tag_create(
513 bus_get_dma_tag(sc->dev), /* parent */
514 32, 0, /* alignment, boundary */
515 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
516 BUS_SPACE_MAXADDR, /* highaddr */
517 NULL, NULL, /* filtfunc, filtfuncarg */
518 sizeof(struct mvneta_rx_desc) * MVNETA_RX_RING_CNT, /* maxsize */
520 sizeof(struct mvneta_rx_desc) * MVNETA_RX_RING_CNT, /* maxsegsz */
522 NULL, NULL, /* lockfunc, lockfuncarg */
523 &sc->rx_dtag); /* dmat */
525 device_printf(sc->dev,
526 "Failed to create DMA tag for Rx descriptors.\n");
530 /* Create tag for Rx buffers */
531 error = bus_dma_tag_create(
532 bus_get_dma_tag(sc->dev), /* parent */
533 32, 0, /* alignment, boundary */
534 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
535 BUS_SPACE_MAXADDR, /* highaddr */
536 NULL, NULL, /* filtfunc, filtfuncarg */
537 MVNETA_MAX_FRAME, 1, /* maxsize, nsegments */
538 MVNETA_MAX_FRAME, /* maxsegsz */
540 NULL, NULL, /* lockfunc, lockfuncarg */
541 &sc->rxbuf_dtag); /* dmat */
543 device_printf(sc->dev,
544 "Failed to create DMA tag for Rx buffers.\n");
548 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
549 if (mvneta_ring_alloc_rx_queue(sc, q) != 0) {
550 device_printf(sc->dev,
551 "Failed to allocate DMA safe memory for RxQ: %zu\n", q);
558 mvneta_detach(sc->dev);
565 mvneta_attach(device_t self)
567 struct mvneta_softc *sc;
572 #if !defined(__aarch64__)
576 sc = device_get_softc(self);
579 mtx_init(&sc->mtx, "mvneta_sc", NULL, MTX_DEF);
581 error = bus_alloc_resources(self, res_spec, sc->res);
583 device_printf(self, "could not allocate resources\n");
587 sc->version = MVNETA_READ(sc, MVNETA_PV);
588 device_printf(self, "version is %x\n", sc->version);
589 callout_init(&sc->tick_ch, 0);
592 * make sure DMA engines are in reset state
594 MVNETA_WRITE(sc, MVNETA_PRXINIT, 0x00000001);
595 MVNETA_WRITE(sc, MVNETA_PTXINIT, 0x00000001);
597 #if !defined(__aarch64__)
599 * Disable port snoop for buffers and descriptors
600 * to avoid L2 caching of both without DRAM copy.
601 * Obtain coherency settings from the first MBUS
604 if ((MVNETA_READ(sc, MV_WIN_NETA_BASE(0)) & IO_WIN_COH_ATTR_MASK) == 0) {
605 reg = MVNETA_READ(sc, MVNETA_PSNPCFG);
606 reg &= ~MVNETA_PSNPCFG_DESCSNP_MASK;
607 reg &= ~MVNETA_PSNPCFG_BUFSNP_MASK;
608 MVNETA_WRITE(sc, MVNETA_PSNPCFG, reg);
615 if (mvneta_get_mac_address(sc, sc->enaddr)) {
616 device_printf(self, "no mac address.\n");
619 mvneta_set_mac_address(sc, sc->enaddr);
621 mvneta_disable_intr(sc);
623 /* Allocate network interface */
624 ifp = sc->ifp = if_alloc(IFT_ETHER);
626 device_printf(self, "if_alloc() failed\n");
630 if_initname(ifp, device_get_name(self), device_get_unit(self));
633 * We can support 802.1Q VLAN-sized frames and jumbo
636 ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU;
639 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
640 #ifdef MVNETA_MULTIQUEUE
641 ifp->if_transmit = mvneta_transmit;
642 ifp->if_qflush = mvneta_qflush;
643 #else /* !MVNETA_MULTIQUEUE */
644 ifp->if_start = mvneta_start;
645 ifp->if_snd.ifq_drv_maxlen = MVNETA_TX_RING_CNT - 1;
646 IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen);
647 IFQ_SET_READY(&ifp->if_snd);
649 ifp->if_init = mvneta_init;
650 ifp->if_ioctl = mvneta_ioctl;
653 * We can do IPv4/TCPv4/UDPv4/TCPv6/UDPv6 checksums in hardware.
655 ifp->if_capabilities |= IFCAP_HWCSUM;
658 * As VLAN hardware tagging is not supported
659 * but is necessary to perform VLAN hardware checksums,
660 * it is done in the driver
662 ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM;
665 * Currently IPv6 HW checksum is broken, so make sure it is disabled.
667 ifp->if_capabilities &= ~IFCAP_HWCSUM_IPV6;
668 ifp->if_capenable = ifp->if_capabilities;
671 * Disabled option(s):
672 * - Support for Large Receive Offload
674 ifp->if_capabilities |= IFCAP_LRO;
676 ifp->if_hwassist = CSUM_IP | CSUM_TCP | CSUM_UDP;
678 sc->rx_frame_size = MCLBYTES; /* ether_ifattach() always sets normal mtu */
681 * Device DMA Buffer allocation.
682 * Handles resource deallocation in case of failure.
684 error = mvneta_dma_create(sc);
690 /* Initialize queues */
691 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
692 error = mvneta_ring_init_tx_queue(sc, q);
699 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
700 error = mvneta_ring_init_rx_queue(sc, q);
707 ether_ifattach(ifp, sc->enaddr);
710 * Enable DMA engines and Initialize Device Registers.
712 MVNETA_WRITE(sc, MVNETA_PRXINIT, 0x00000000);
713 MVNETA_WRITE(sc, MVNETA_PTXINIT, 0x00000000);
714 MVNETA_WRITE(sc, MVNETA_PACC, MVNETA_PACC_ACCELERATIONMODE_EDM);
716 mvneta_filter_setup(sc);
717 mvneta_sc_unlock(sc);
721 * Now MAC is working, setup MII.
725 * MII bus is shared by all MACs and all PHYs in SoC.
726 * serializing the bus access should be safe.
728 mtx_init(&mii_mutex, "mvneta_mii", NULL, MTX_DEF);
733 if ((sc->phy_addr != MII_PHY_ANY) && (!sc->use_inband_status)) {
734 error = mii_attach(self, &sc->miibus, ifp, mvneta_mediachange,
735 mvneta_mediastatus, BMSR_DEFCAPMASK, sc->phy_addr,
740 "MII attach failed, error: %d\n", error);
742 ether_ifdetach(sc->ifp);
746 sc->mii = device_get_softc(sc->miibus);
747 sc->phy_attached = 1;
749 /* Disable auto-negotiation in MAC - rely on PHY layer */
750 mvneta_update_autoneg(sc, FALSE);
751 } else if (sc->use_inband_status == TRUE) {
752 /* In-band link status */
753 ifmedia_init(&sc->mvneta_ifmedia, 0, mvneta_mediachange,
756 /* Configure media */
757 ifmedia_add(&sc->mvneta_ifmedia, IFM_ETHER | IFM_1000_T | IFM_FDX,
759 ifmedia_add(&sc->mvneta_ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL);
760 ifmedia_add(&sc->mvneta_ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX,
762 ifmedia_add(&sc->mvneta_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL);
763 ifmedia_add(&sc->mvneta_ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX,
765 ifmedia_add(&sc->mvneta_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL);
766 ifmedia_set(&sc->mvneta_ifmedia, IFM_ETHER | IFM_AUTO);
768 /* Enable auto-negotiation */
769 mvneta_update_autoneg(sc, TRUE);
772 if (MVNETA_IS_LINKUP(sc))
776 mvneta_sc_unlock(sc);
779 /* Fixed-link, use predefined values */
780 mvneta_update_autoneg(sc, FALSE);
781 ifmedia_init(&sc->mvneta_ifmedia, 0, mvneta_mediachange,
784 ifm_target = IFM_ETHER;
785 switch (sc->phy_speed) {
787 if (sc->phy_mode != MVNETA_PHY_SGMII &&
788 sc->phy_mode != MVNETA_PHY_QSGMII) {
790 "2.5G speed can work only in (Q)SGMII mode\n");
791 ether_ifdetach(sc->ifp);
795 ifm_target |= IFM_2500_T;
798 ifm_target |= IFM_1000_T;
801 ifm_target |= IFM_100_TX;
804 ifm_target |= IFM_10_T;
807 ether_ifdetach(sc->ifp);
813 ifm_target |= IFM_FDX;
815 ifm_target |= IFM_HDX;
817 ifmedia_add(&sc->mvneta_ifmedia, ifm_target, 0, NULL);
818 ifmedia_set(&sc->mvneta_ifmedia, ifm_target);
819 if_link_state_change(sc->ifp, LINK_STATE_UP);
821 if (mvneta_has_switch(self)) {
823 device_printf(self, "This device is attached to a switch\n");
824 child = device_add_child(sc->dev, "mdio", -1);
826 ether_ifdetach(sc->ifp);
830 bus_generic_attach(sc->dev);
831 bus_generic_attach(child);
834 /* Configure MAC media */
835 mvneta_update_media(sc, ifm_target);
838 sysctl_mvneta_init(sc);
840 callout_reset(&sc->tick_ch, 0, mvneta_tick, sc);
842 error = bus_setup_intr(self, sc->res[1],
843 INTR_TYPE_NET | INTR_MPSAFE, NULL, mvneta_intrs[0].handler, sc,
846 device_printf(self, "could not setup %s\n",
847 mvneta_intrs[0].description);
848 ether_ifdetach(sc->ifp);
857 mvneta_detach(device_t dev)
859 struct mvneta_softc *sc;
862 sc = device_get_softc(dev);
865 /* Detach network interface */
869 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++)
870 mvneta_ring_dealloc_rx_queue(sc, q);
871 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++)
872 mvneta_ring_dealloc_tx_queue(sc, q);
874 if (sc->tx_dtag != NULL)
875 bus_dma_tag_destroy(sc->tx_dtag);
876 if (sc->rx_dtag != NULL)
877 bus_dma_tag_destroy(sc->rx_dtag);
878 if (sc->txmbuf_dtag != NULL)
879 bus_dma_tag_destroy(sc->txmbuf_dtag);
880 if (sc->rxbuf_dtag != NULL)
881 bus_dma_tag_destroy(sc->rxbuf_dtag);
883 bus_release_resources(dev, res_spec, sc->res);
891 mvneta_miibus_readreg(device_t dev, int phy, int reg)
893 struct mvneta_softc *sc;
898 sc = device_get_softc(dev);
901 mtx_lock(&mii_mutex);
903 for (i = 0; i < MVNETA_PHY_TIMEOUT; i++) {
904 if ((MVNETA_READ(sc, MVNETA_SMI) & MVNETA_SMI_BUSY) == 0)
908 if (i == MVNETA_PHY_TIMEOUT) {
909 if_printf(ifp, "SMI busy timeout\n");
910 mtx_unlock(&mii_mutex);
914 smi = MVNETA_SMI_PHYAD(phy) |
915 MVNETA_SMI_REGAD(reg) | MVNETA_SMI_OPCODE_READ;
916 MVNETA_WRITE(sc, MVNETA_SMI, smi);
918 for (i = 0; i < MVNETA_PHY_TIMEOUT; i++) {
919 if ((MVNETA_READ(sc, MVNETA_SMI) & MVNETA_SMI_BUSY) == 0)
924 if (i == MVNETA_PHY_TIMEOUT) {
925 if_printf(ifp, "SMI busy timeout\n");
926 mtx_unlock(&mii_mutex);
929 for (i = 0; i < MVNETA_PHY_TIMEOUT; i++) {
930 smi = MVNETA_READ(sc, MVNETA_SMI);
931 if (smi & MVNETA_SMI_READVALID)
936 if (i == MVNETA_PHY_TIMEOUT) {
937 if_printf(ifp, "SMI busy timeout\n");
938 mtx_unlock(&mii_mutex);
942 mtx_unlock(&mii_mutex);
945 CTR3(KTR_SPARE2, "%s i=%d, timeout=%d\n", ifp->if_xname, i,
949 val = smi & MVNETA_SMI_DATA_MASK;
952 CTR4(KTR_SPARE2, "%s phy=%d, reg=%#x, val=%#x\n", ifp->if_xname, phy,
959 mvneta_miibus_writereg(device_t dev, int phy, int reg, int val)
961 struct mvneta_softc *sc;
966 sc = device_get_softc(dev);
969 CTR4(KTR_SPARE2, "%s phy=%d, reg=%#x, val=%#x\n", ifp->if_xname,
973 mtx_lock(&mii_mutex);
975 for (i = 0; i < MVNETA_PHY_TIMEOUT; i++) {
976 if ((MVNETA_READ(sc, MVNETA_SMI) & MVNETA_SMI_BUSY) == 0)
980 if (i == MVNETA_PHY_TIMEOUT) {
981 if_printf(ifp, "SMI busy timeout\n");
982 mtx_unlock(&mii_mutex);
986 smi = MVNETA_SMI_PHYAD(phy) | MVNETA_SMI_REGAD(reg) |
987 MVNETA_SMI_OPCODE_WRITE | (val & MVNETA_SMI_DATA_MASK);
988 MVNETA_WRITE(sc, MVNETA_SMI, smi);
990 for (i = 0; i < MVNETA_PHY_TIMEOUT; i++) {
991 if ((MVNETA_READ(sc, MVNETA_SMI) & MVNETA_SMI_BUSY) == 0)
996 mtx_unlock(&mii_mutex);
998 if (i == MVNETA_PHY_TIMEOUT)
999 if_printf(ifp, "phy write timed out\n");
1005 mvneta_portup(struct mvneta_softc *sc)
1009 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
1010 mvneta_rx_lockq(sc, q);
1011 mvneta_rx_queue_enable(sc->ifp, q);
1012 mvneta_rx_unlockq(sc, q);
1015 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
1016 mvneta_tx_lockq(sc, q);
1017 mvneta_tx_queue_enable(sc->ifp, q);
1018 mvneta_tx_unlockq(sc, q);
1024 mvneta_portdown(struct mvneta_softc *sc)
1026 struct mvneta_rx_ring *rx;
1027 struct mvneta_tx_ring *tx;
1031 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
1032 rx = MVNETA_RX_RING(sc, q);
1033 mvneta_rx_lockq(sc, q);
1034 rx->queue_status = MVNETA_QUEUE_DISABLED;
1035 mvneta_rx_unlockq(sc, q);
1038 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
1039 tx = MVNETA_TX_RING(sc, q);
1040 mvneta_tx_lockq(sc, q);
1041 tx->queue_status = MVNETA_QUEUE_DISABLED;
1042 mvneta_tx_unlockq(sc, q);
1045 /* Wait for all Rx activity to terminate. */
1046 reg = MVNETA_READ(sc, MVNETA_RQC) & MVNETA_RQC_EN_MASK;
1047 reg = MVNETA_RQC_DIS(reg);
1048 MVNETA_WRITE(sc, MVNETA_RQC, reg);
1051 if (cnt >= RX_DISABLE_TIMEOUT) {
1053 "timeout for RX stopped. rqc 0x%x\n", reg);
1057 reg = MVNETA_READ(sc, MVNETA_RQC);
1058 } while ((reg & MVNETA_RQC_EN_MASK) != 0);
1060 /* Wait for all Tx activity to terminate. */
1061 reg = MVNETA_READ(sc, MVNETA_PIE);
1062 reg &= ~MVNETA_PIE_TXPKTINTRPTENB_MASK;
1063 MVNETA_WRITE(sc, MVNETA_PIE, reg);
1065 reg = MVNETA_READ(sc, MVNETA_PRXTXTIM);
1066 reg &= ~MVNETA_PRXTXTI_TBTCQ_MASK;
1067 MVNETA_WRITE(sc, MVNETA_PRXTXTIM, reg);
1069 reg = MVNETA_READ(sc, MVNETA_TQC) & MVNETA_TQC_EN_MASK;
1070 reg = MVNETA_TQC_DIS(reg);
1071 MVNETA_WRITE(sc, MVNETA_TQC, reg);
1074 if (cnt >= TX_DISABLE_TIMEOUT) {
1076 "timeout for TX stopped. tqc 0x%x\n", reg);
1080 reg = MVNETA_READ(sc, MVNETA_TQC);
1081 } while ((reg & MVNETA_TQC_EN_MASK) != 0);
1083 /* Wait for all Tx FIFO is empty */
1086 if (cnt >= TX_FIFO_EMPTY_TIMEOUT) {
1088 "timeout for TX FIFO drained. ps0 0x%x\n", reg);
1092 reg = MVNETA_READ(sc, MVNETA_PS0);
1093 } while (((reg & MVNETA_PS0_TXFIFOEMP) == 0) &&
1094 ((reg & MVNETA_PS0_TXINPROG) != 0));
1098 * Device Register Initialization
1099 * reset device registers to device driver default value.
1100 * the device is not enabled here.
1103 mvneta_initreg(struct ifnet *ifp)
1105 struct mvneta_softc *sc;
1111 CTR1(KTR_SPARE2, "%s initializing device register", ifp->if_xname);
1114 /* Disable Legacy WRR, Disable EJP, Release from reset. */
1115 MVNETA_WRITE(sc, MVNETA_TQC_1, 0);
1116 /* Enable mbus retry. */
1117 MVNETA_WRITE(sc, MVNETA_MBUS_CONF, MVNETA_MBUS_RETRY_EN);
1119 /* Init TX/RX Queue Registers */
1120 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
1121 mvneta_rx_lockq(sc, q);
1122 if (mvneta_rx_queue_init(ifp, q) != 0) {
1123 device_printf(sc->dev,
1124 "initialization failed: cannot initialize queue\n");
1125 mvneta_rx_unlockq(sc, q);
1128 mvneta_rx_unlockq(sc, q);
1130 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
1131 mvneta_tx_lockq(sc, q);
1132 if (mvneta_tx_queue_init(ifp, q) != 0) {
1133 device_printf(sc->dev,
1134 "initialization failed: cannot initialize queue\n");
1135 mvneta_tx_unlockq(sc, q);
1138 mvneta_tx_unlockq(sc, q);
1142 * Ethernet Unit Control - disable automatic PHY management by HW.
1143 * In case the port uses SMI-controlled PHY, poll its status with
1144 * mii_tick() and update MAC settings accordingly.
1146 reg = MVNETA_READ(sc, MVNETA_EUC);
1147 reg &= ~MVNETA_EUC_POLLING;
1148 MVNETA_WRITE(sc, MVNETA_EUC, reg);
1150 /* EEE: Low Power Idle */
1151 reg = MVNETA_LPIC0_LILIMIT(MVNETA_LPI_LI);
1152 reg |= MVNETA_LPIC0_TSLIMIT(MVNETA_LPI_TS);
1153 MVNETA_WRITE(sc, MVNETA_LPIC0, reg);
1155 reg = MVNETA_LPIC1_TWLIMIT(MVNETA_LPI_TW);
1156 MVNETA_WRITE(sc, MVNETA_LPIC1, reg);
1158 reg = MVNETA_LPIC2_MUSTSET;
1159 MVNETA_WRITE(sc, MVNETA_LPIC2, reg);
1161 /* Port MAC Control set 0 */
1162 reg = MVNETA_PMACC0_MUSTSET; /* must write 0x1 */
1163 reg &= ~MVNETA_PMACC0_PORTEN; /* port is still disabled */
1164 reg |= MVNETA_PMACC0_FRAMESIZELIMIT(ifp->if_mtu + MVNETA_ETHER_SIZE);
1165 MVNETA_WRITE(sc, MVNETA_PMACC0, reg);
1167 /* Port MAC Control set 2 */
1168 reg = MVNETA_READ(sc, MVNETA_PMACC2);
1169 switch (sc->phy_mode) {
1170 case MVNETA_PHY_QSGMII:
1171 reg |= (MVNETA_PMACC2_PCSEN | MVNETA_PMACC2_RGMIIEN);
1172 MVNETA_WRITE(sc, MVNETA_PSERDESCFG, MVNETA_PSERDESCFG_QSGMII);
1174 case MVNETA_PHY_SGMII:
1175 reg |= (MVNETA_PMACC2_PCSEN | MVNETA_PMACC2_RGMIIEN);
1176 MVNETA_WRITE(sc, MVNETA_PSERDESCFG, MVNETA_PSERDESCFG_SGMII);
1178 case MVNETA_PHY_RGMII:
1179 case MVNETA_PHY_RGMII_ID:
1180 reg |= MVNETA_PMACC2_RGMIIEN;
1183 reg |= MVNETA_PMACC2_MUSTSET;
1184 reg &= ~MVNETA_PMACC2_PORTMACRESET;
1185 MVNETA_WRITE(sc, MVNETA_PMACC2, reg);
1187 /* Port Configuration Extended: enable Tx CRC generation */
1188 reg = MVNETA_READ(sc, MVNETA_PXCX);
1189 reg &= ~MVNETA_PXCX_TXCRCDIS;
1190 MVNETA_WRITE(sc, MVNETA_PXCX, reg);
1192 /* clear MIB counter registers(clear by read) */
1194 mvneta_clear_mib(sc);
1195 mvneta_sc_unlock(sc);
1197 /* Set SDC register except IPGINT bits */
1198 reg = MVNETA_SDC_RXBSZ_16_64BITWORDS;
1199 reg |= MVNETA_SDC_TXBSZ_16_64BITWORDS;
1200 reg |= MVNETA_SDC_BLMR;
1201 reg |= MVNETA_SDC_BLMT;
1202 MVNETA_WRITE(sc, MVNETA_SDC, reg);
1208 mvneta_dmamap_cb(void *arg, bus_dma_segment_t * segs, int nseg, int error)
1213 *(bus_addr_t *)arg = segs->ds_addr;
1217 mvneta_ring_alloc_rx_queue(struct mvneta_softc *sc, int q)
1219 struct mvneta_rx_ring *rx;
1220 struct mvneta_buf *rxbuf;
1224 if (q >= MVNETA_RX_QNUM_MAX)
1227 rx = MVNETA_RX_RING(sc, q);
1228 mtx_init(&rx->ring_mtx, "mvneta_rx", NULL, MTX_DEF);
1229 /* Allocate DMA memory for Rx descriptors */
1230 error = bus_dmamem_alloc(sc->rx_dtag,
1231 (void**)&(rx->desc),
1232 BUS_DMA_NOWAIT | BUS_DMA_ZERO,
1234 if (error != 0 || rx->desc == NULL)
1236 error = bus_dmamap_load(sc->rx_dtag, rx->desc_map,
1238 sizeof(struct mvneta_rx_desc) * MVNETA_RX_RING_CNT,
1239 mvneta_dmamap_cb, &rx->desc_pa, BUS_DMA_NOWAIT);
1243 for (i = 0; i < MVNETA_RX_RING_CNT; i++) {
1244 error = bus_dmamap_create(sc->rxbuf_dtag, 0, &dmap);
1246 device_printf(sc->dev,
1247 "Failed to create DMA map for Rx buffer num: %d\n", i);
1250 rxbuf = &rx->rxbuf[i];
1257 mvneta_ring_dealloc_rx_queue(sc, q);
1258 device_printf(sc->dev, "DMA Ring buffer allocation failure.\n");
1263 mvneta_ring_alloc_tx_queue(struct mvneta_softc *sc, int q)
1265 struct mvneta_tx_ring *tx;
1268 if (q >= MVNETA_TX_QNUM_MAX)
1270 tx = MVNETA_TX_RING(sc, q);
1271 mtx_init(&tx->ring_mtx, "mvneta_tx", NULL, MTX_DEF);
1272 error = bus_dmamem_alloc(sc->tx_dtag,
1273 (void**)&(tx->desc),
1274 BUS_DMA_NOWAIT | BUS_DMA_ZERO,
1276 if (error != 0 || tx->desc == NULL)
1278 error = bus_dmamap_load(sc->tx_dtag, tx->desc_map,
1280 sizeof(struct mvneta_tx_desc) * MVNETA_TX_RING_CNT,
1281 mvneta_dmamap_cb, &tx->desc_pa, BUS_DMA_NOWAIT);
1285 #ifdef MVNETA_MULTIQUEUE
1286 tx->br = buf_ring_alloc(MVNETA_BUFRING_SIZE, M_DEVBUF, M_NOWAIT,
1288 if (tx->br == NULL) {
1289 device_printf(sc->dev,
1290 "Could not setup buffer ring for TxQ(%d)\n", q);
1298 mvneta_ring_dealloc_tx_queue(sc, q);
1299 device_printf(sc->dev, "DMA Ring buffer allocation failure.\n");
1304 mvneta_ring_dealloc_tx_queue(struct mvneta_softc *sc, int q)
1306 struct mvneta_tx_ring *tx;
1307 struct mvneta_buf *txbuf;
1312 if (q >= MVNETA_TX_QNUM_MAX)
1314 tx = MVNETA_TX_RING(sc, q);
1316 if (tx->taskq != NULL) {
1318 while (taskqueue_cancel(tx->taskq, &tx->task, NULL) != 0)
1319 taskqueue_drain(tx->taskq, &tx->task);
1321 #ifdef MVNETA_MULTIQUEUE
1323 drbr_free(tx->br, M_DEVBUF);
1326 if (sc->txmbuf_dtag != NULL) {
1327 if (mtx_name(&tx->ring_mtx) != NULL) {
1329 * It is assumed that maps are being loaded after mutex
1330 * is initialized. Therefore we can skip unloading maps
1331 * when mutex is empty.
1333 mvneta_tx_lockq(sc, q);
1334 mvneta_ring_flush_tx_queue(sc, q);
1335 mvneta_tx_unlockq(sc, q);
1337 for (i = 0; i < MVNETA_TX_RING_CNT; i++) {
1338 txbuf = &tx->txbuf[i];
1339 if (txbuf->dmap != NULL) {
1340 error = bus_dmamap_destroy(sc->txmbuf_dtag,
1343 panic("%s: map busy for Tx descriptor (Q%d, %d)",
1350 if (tx->desc_pa != 0)
1351 bus_dmamap_unload(sc->tx_dtag, tx->desc_map);
1353 kva = (void *)tx->desc;
1355 bus_dmamem_free(sc->tx_dtag, tx->desc, tx->desc_map);
1357 if (mtx_name(&tx->ring_mtx) != NULL)
1358 mtx_destroy(&tx->ring_mtx);
1360 memset(tx, 0, sizeof(*tx));
1364 mvneta_ring_dealloc_rx_queue(struct mvneta_softc *sc, int q)
1366 struct mvneta_rx_ring *rx;
1367 struct lro_ctrl *lro;
1370 if (q >= MVNETA_RX_QNUM_MAX)
1373 rx = MVNETA_RX_RING(sc, q);
1375 mvneta_ring_flush_rx_queue(sc, q);
1377 if (rx->desc_pa != 0)
1378 bus_dmamap_unload(sc->rx_dtag, rx->desc_map);
1380 kva = (void *)rx->desc;
1382 bus_dmamem_free(sc->rx_dtag, rx->desc, rx->desc_map);
1387 if (mtx_name(&rx->ring_mtx) != NULL)
1388 mtx_destroy(&rx->ring_mtx);
1390 memset(rx, 0, sizeof(*rx));
1394 mvneta_ring_init_rx_queue(struct mvneta_softc *sc, int q)
1396 struct mvneta_rx_ring *rx;
1397 struct lro_ctrl *lro;
1400 if (q >= MVNETA_RX_QNUM_MAX)
1403 rx = MVNETA_RX_RING(sc, q);
1404 rx->dma = rx->cpu = 0;
1405 rx->queue_th_received = MVNETA_RXTH_COUNT;
1406 rx->queue_th_time = (mvneta_get_clk() / 1000) / 10; /* 0.1 [ms] */
1408 /* Initialize LRO */
1409 rx->lro_enabled = FALSE;
1410 if ((sc->ifp->if_capenable & IFCAP_LRO) != 0) {
1412 error = tcp_lro_init(lro);
1414 device_printf(sc->dev, "LRO Initialization failed!\n");
1416 rx->lro_enabled = TRUE;
1425 mvneta_ring_init_tx_queue(struct mvneta_softc *sc, int q)
1427 struct mvneta_tx_ring *tx;
1428 struct mvneta_buf *txbuf;
1431 if (q >= MVNETA_TX_QNUM_MAX)
1434 tx = MVNETA_TX_RING(sc, q);
1437 for (i = 0; i < MVNETA_TX_RING_CNT; i++) {
1438 txbuf = &tx->txbuf[i];
1440 /* Tx handle needs DMA map for busdma_load_mbuf() */
1441 error = bus_dmamap_create(sc->txmbuf_dtag, 0,
1444 device_printf(sc->dev,
1445 "can't create dma map (tx ring %d)\n", i);
1449 tx->dma = tx->cpu = 0;
1452 tx->queue_status = MVNETA_QUEUE_DISABLED;
1453 tx->queue_hung = FALSE;
1457 TASK_INIT(&tx->task, 0, mvneta_tx_task, tx);
1458 tx->taskq = taskqueue_create_fast("mvneta_tx_taskq", M_WAITOK,
1459 taskqueue_thread_enqueue, &tx->taskq);
1460 taskqueue_start_threads(&tx->taskq, 1, PI_NET, "%s: tx_taskq(%d)",
1461 device_get_nameunit(sc->dev), q);
1467 mvneta_ring_flush_tx_queue(struct mvneta_softc *sc, int q)
1469 struct mvneta_tx_ring *tx;
1470 struct mvneta_buf *txbuf;
1473 tx = MVNETA_TX_RING(sc, q);
1474 KASSERT_TX_MTX(sc, q);
1477 for (i = 0; i < MVNETA_TX_RING_CNT; i++) {
1478 txbuf = &tx->txbuf[i];
1479 bus_dmamap_unload(sc->txmbuf_dtag, txbuf->dmap);
1480 if (txbuf->m != NULL) {
1485 tx->dma = tx->cpu = 0;
1490 mvneta_ring_flush_rx_queue(struct mvneta_softc *sc, int q)
1492 struct mvneta_rx_ring *rx;
1493 struct mvneta_buf *rxbuf;
1496 rx = MVNETA_RX_RING(sc, q);
1497 KASSERT_RX_MTX(sc, q);
1500 for (i = 0; i < MVNETA_RX_RING_CNT; i++) {
1501 rxbuf = &rx->rxbuf[i];
1502 mvneta_rx_buf_free(sc, rxbuf);
1504 rx->dma = rx->cpu = 0;
1508 * Rx/Tx Queue Control
1511 mvneta_rx_queue_init(struct ifnet *ifp, int q)
1513 struct mvneta_softc *sc;
1514 struct mvneta_rx_ring *rx;
1518 KASSERT_RX_MTX(sc, q);
1519 rx = MVNETA_RX_RING(sc, q);
1520 DASSERT(rx->desc_pa != 0);
1522 /* descriptor address */
1523 MVNETA_WRITE(sc, MVNETA_PRXDQA(q), rx->desc_pa);
1525 /* Rx buffer size and descriptor ring size */
1526 reg = MVNETA_PRXDQS_BUFFERSIZE(sc->rx_frame_size >> 3);
1527 reg |= MVNETA_PRXDQS_DESCRIPTORSQUEUESIZE(MVNETA_RX_RING_CNT);
1528 MVNETA_WRITE(sc, MVNETA_PRXDQS(q), reg);
1530 CTR3(KTR_SPARE2, "%s PRXDQS(%d): %#x", ifp->if_xname, q,
1531 MVNETA_READ(sc, MVNETA_PRXDQS(q)));
1533 /* Rx packet offset address */
1534 reg = MVNETA_PRXC_PACKETOFFSET(MVNETA_PACKET_OFFSET >> 3);
1535 MVNETA_WRITE(sc, MVNETA_PRXC(q), reg);
1537 CTR3(KTR_SPARE2, "%s PRXC(%d): %#x", ifp->if_xname, q,
1538 MVNETA_READ(sc, MVNETA_PRXC(q)));
1541 /* if DMA is not working, register is not updated */
1542 DASSERT(MVNETA_READ(sc, MVNETA_PRXDQA(q)) == rx->desc_pa);
1547 mvneta_tx_queue_init(struct ifnet *ifp, int q)
1549 struct mvneta_softc *sc;
1550 struct mvneta_tx_ring *tx;
1554 KASSERT_TX_MTX(sc, q);
1555 tx = MVNETA_TX_RING(sc, q);
1556 DASSERT(tx->desc_pa != 0);
1558 /* descriptor address */
1559 MVNETA_WRITE(sc, MVNETA_PTXDQA(q), tx->desc_pa);
1561 /* descriptor ring size */
1562 reg = MVNETA_PTXDQS_DQS(MVNETA_TX_RING_CNT);
1563 MVNETA_WRITE(sc, MVNETA_PTXDQS(q), reg);
1565 /* if DMA is not working, register is not updated */
1566 DASSERT(MVNETA_READ(sc, MVNETA_PTXDQA(q)) == tx->desc_pa);
1571 mvneta_rx_queue_enable(struct ifnet *ifp, int q)
1573 struct mvneta_softc *sc;
1574 struct mvneta_rx_ring *rx;
1578 rx = MVNETA_RX_RING(sc, q);
1579 KASSERT_RX_MTX(sc, q);
1581 /* Set Rx interrupt threshold */
1582 reg = MVNETA_PRXDQTH_ODT(rx->queue_th_received);
1583 MVNETA_WRITE(sc, MVNETA_PRXDQTH(q), reg);
1585 reg = MVNETA_PRXITTH_RITT(rx->queue_th_time);
1586 MVNETA_WRITE(sc, MVNETA_PRXITTH(q), reg);
1588 /* Unmask RXTX_TH Intr. */
1589 reg = MVNETA_READ(sc, MVNETA_PRXTXTIM);
1590 reg |= MVNETA_PRXTXTI_RBICTAPQ(q); /* Rx Buffer Interrupt Coalese */
1591 MVNETA_WRITE(sc, MVNETA_PRXTXTIM, reg);
1593 /* Enable Rx queue */
1594 reg = MVNETA_READ(sc, MVNETA_RQC) & MVNETA_RQC_EN_MASK;
1595 reg |= MVNETA_RQC_ENQ(q);
1596 MVNETA_WRITE(sc, MVNETA_RQC, reg);
1598 rx->queue_status = MVNETA_QUEUE_WORKING;
1603 mvneta_tx_queue_enable(struct ifnet *ifp, int q)
1605 struct mvneta_softc *sc;
1606 struct mvneta_tx_ring *tx;
1609 tx = MVNETA_TX_RING(sc, q);
1610 KASSERT_TX_MTX(sc, q);
1612 /* Enable Tx queue */
1613 MVNETA_WRITE(sc, MVNETA_TQC, MVNETA_TQC_ENQ(q));
1615 tx->queue_status = MVNETA_QUEUE_IDLE;
1616 tx->queue_hung = FALSE;
1620 STATIC __inline void
1621 mvneta_rx_lockq(struct mvneta_softc *sc, int q)
1625 DASSERT(q < MVNETA_RX_QNUM_MAX);
1626 mtx_lock(&sc->rx_ring[q].ring_mtx);
1629 STATIC __inline void
1630 mvneta_rx_unlockq(struct mvneta_softc *sc, int q)
1634 DASSERT(q < MVNETA_RX_QNUM_MAX);
1635 mtx_unlock(&sc->rx_ring[q].ring_mtx);
1638 STATIC __inline int __unused
1639 mvneta_tx_trylockq(struct mvneta_softc *sc, int q)
1643 DASSERT(q < MVNETA_TX_QNUM_MAX);
1644 return (mtx_trylock(&sc->tx_ring[q].ring_mtx));
1647 STATIC __inline void
1648 mvneta_tx_lockq(struct mvneta_softc *sc, int q)
1652 DASSERT(q < MVNETA_TX_QNUM_MAX);
1653 mtx_lock(&sc->tx_ring[q].ring_mtx);
1656 STATIC __inline void
1657 mvneta_tx_unlockq(struct mvneta_softc *sc, int q)
1661 DASSERT(q < MVNETA_TX_QNUM_MAX);
1662 mtx_unlock(&sc->tx_ring[q].ring_mtx);
1666 * Interrupt Handlers
1669 mvneta_disable_intr(struct mvneta_softc *sc)
1672 MVNETA_WRITE(sc, MVNETA_EUIM, 0);
1673 MVNETA_WRITE(sc, MVNETA_EUIC, 0);
1674 MVNETA_WRITE(sc, MVNETA_PRXTXTIM, 0);
1675 MVNETA_WRITE(sc, MVNETA_PRXTXTIC, 0);
1676 MVNETA_WRITE(sc, MVNETA_PRXTXIM, 0);
1677 MVNETA_WRITE(sc, MVNETA_PRXTXIC, 0);
1678 MVNETA_WRITE(sc, MVNETA_PMIM, 0);
1679 MVNETA_WRITE(sc, MVNETA_PMIC, 0);
1680 MVNETA_WRITE(sc, MVNETA_PIE, 0);
1684 mvneta_enable_intr(struct mvneta_softc *sc)
1688 /* Enable Summary Bit to check all interrupt cause. */
1689 reg = MVNETA_READ(sc, MVNETA_PRXTXTIM);
1690 reg |= MVNETA_PRXTXTI_PMISCICSUMMARY;
1691 MVNETA_WRITE(sc, MVNETA_PRXTXTIM, reg);
1693 if (sc->use_inband_status) {
1694 /* Enable Port MISC Intr. (via RXTX_TH_Summary bit) */
1695 MVNETA_WRITE(sc, MVNETA_PMIM, MVNETA_PMI_PHYSTATUSCHNG |
1696 MVNETA_PMI_LINKCHANGE | MVNETA_PMI_PSCSYNCCHANGE);
1699 /* Enable All Queue Interrupt */
1700 reg = MVNETA_READ(sc, MVNETA_PIE);
1701 reg |= MVNETA_PIE_RXPKTINTRPTENB_MASK;
1702 reg |= MVNETA_PIE_TXPKTINTRPTENB_MASK;
1703 MVNETA_WRITE(sc, MVNETA_PIE, reg);
1707 mvneta_rxtxth_intr(void *arg)
1709 struct mvneta_softc *sc;
1711 uint32_t ic, queues;
1716 CTR1(KTR_SPARE2, "%s got RXTX_TH_Intr", ifp->if_xname);
1718 ic = MVNETA_READ(sc, MVNETA_PRXTXTIC);
1721 MVNETA_WRITE(sc, MVNETA_PRXTXTIC, ~ic);
1723 /* Ack maintance interrupt first */
1724 if (__predict_false((ic & MVNETA_PRXTXTI_PMISCICSUMMARY) &&
1725 sc->use_inband_status)) {
1727 mvneta_misc_intr(sc);
1728 mvneta_sc_unlock(sc);
1730 if (__predict_false(!(ifp->if_drv_flags & IFF_DRV_RUNNING)))
1732 /* RxTxTH interrupt */
1733 queues = MVNETA_PRXTXTI_GET_RBICTAPQ(ic);
1734 if (__predict_true(queues)) {
1736 CTR1(KTR_SPARE2, "%s got PRXTXTIC: +RXEOF", ifp->if_xname);
1738 /* At the moment the driver support only one RX queue. */
1739 DASSERT(MVNETA_IS_QUEUE_SET(queues, 0));
1740 mvneta_rx(sc, 0, 0);
1745 mvneta_misc_intr(struct mvneta_softc *sc)
1751 CTR1(KTR_SPARE2, "%s got MISC_INTR", sc->ifp->if_xname);
1756 ic = MVNETA_READ(sc, MVNETA_PMIC);
1757 ic &= MVNETA_READ(sc, MVNETA_PMIM);
1760 MVNETA_WRITE(sc, MVNETA_PMIC, ~ic);
1763 if (ic & (MVNETA_PMI_PHYSTATUSCHNG |
1764 MVNETA_PMI_LINKCHANGE | MVNETA_PMI_PSCSYNCCHANGE))
1765 mvneta_link_isr(sc);
1771 mvneta_tick(void *arg)
1773 struct mvneta_softc *sc;
1774 struct mvneta_tx_ring *tx;
1775 struct mvneta_rx_ring *rx;
1777 uint32_t fc_prev, fc_curr;
1782 * This is done before mib update to get the right stats
1785 mvneta_tx_drain(sc);
1787 /* Extract previous flow-control frame received counter. */
1788 fc_prev = sc->sysctl_mib[MVNETA_MIB_FC_GOOD_IDX].counter;
1789 /* Read mib registers (clear by read). */
1790 mvneta_update_mib(sc);
1791 /* Extract current flow-control frame received counter. */
1792 fc_curr = sc->sysctl_mib[MVNETA_MIB_FC_GOOD_IDX].counter;
1795 if (sc->phy_attached && sc->ifp->if_flags & IFF_UP) {
1799 /* Adjust MAC settings */
1800 mvneta_adjust_link(sc);
1801 mvneta_sc_unlock(sc);
1805 * We were unable to refill the rx queue and left the rx func, leaving
1806 * the ring without mbuf and no way to call the refill func.
1808 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
1809 rx = MVNETA_RX_RING(sc, q);
1810 if (rx->needs_refill == TRUE) {
1811 mvneta_rx_lockq(sc, q);
1812 mvneta_rx_queue_refill(sc, q);
1813 mvneta_rx_unlockq(sc, q);
1819 * - check if queue is mark as hung.
1820 * - ignore hung status if we received some pause frame
1821 * as hardware may have paused packet transmit.
1823 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
1825 * We should take queue lock, but as we only read
1826 * queue status we can do it without lock, we may
1827 * only missdetect queue status for one tick.
1829 tx = MVNETA_TX_RING(sc, q);
1831 if (tx->queue_hung && (fc_curr - fc_prev) == 0)
1835 callout_schedule(&sc->tick_ch, hz);
1839 if_printf(sc->ifp, "watchdog timeout\n");
1842 sc->counter_watchdog++;
1843 sc->counter_watchdog_mib++;
1844 /* Trigger reinitialize sequence. */
1845 mvneta_stop_locked(sc);
1846 mvneta_init_locked(sc);
1847 mvneta_sc_unlock(sc);
1851 mvneta_qflush(struct ifnet *ifp)
1853 #ifdef MVNETA_MULTIQUEUE
1854 struct mvneta_softc *sc;
1855 struct mvneta_tx_ring *tx;
1861 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
1862 tx = MVNETA_TX_RING(sc, q);
1863 mvneta_tx_lockq(sc, q);
1864 while ((m = buf_ring_dequeue_sc(tx->br)) != NULL)
1866 mvneta_tx_unlockq(sc, q);
1873 mvneta_tx_task(void *arg, int pending)
1875 struct mvneta_softc *sc;
1876 struct mvneta_tx_ring *tx;
1884 mvneta_tx_lockq(sc, tx->qidx);
1885 error = mvneta_xmit_locked(sc, tx->qidx);
1886 mvneta_tx_unlockq(sc, tx->qidx);
1889 if (__predict_false(error != 0 && error != ENETDOWN)) {
1890 pause("mvneta_tx_task_sleep", 1);
1891 taskqueue_enqueue(tx->taskq, &tx->task);
1896 mvneta_xmitfast_locked(struct mvneta_softc *sc, int q, struct mbuf **m)
1898 struct mvneta_tx_ring *tx;
1902 KASSERT_TX_MTX(sc, q);
1903 tx = MVNETA_TX_RING(sc, q);
1908 /* Dont enqueue packet if the queue is disabled. */
1909 if (__predict_false(tx->queue_status == MVNETA_QUEUE_DISABLED)) {
1915 /* Reclaim mbuf if above threshold. */
1916 if (__predict_true(tx->used > MVNETA_TX_RECLAIM_COUNT))
1917 mvneta_tx_queue_complete(sc, q);
1919 /* Do not call transmit path if queue is already too full. */
1920 if (__predict_false(tx->used >
1921 MVNETA_TX_RING_CNT - MVNETA_TX_SEGLIMIT))
1924 error = mvneta_tx_queue(sc, m, q);
1925 if (__predict_false(error != 0))
1928 /* Send a copy of the frame to the BPF listener */
1929 ETHER_BPF_MTAP(ifp, *m);
1931 /* Set watchdog on */
1932 tx->watchdog_time = ticks;
1933 tx->queue_status = MVNETA_QUEUE_WORKING;
1938 #ifdef MVNETA_MULTIQUEUE
1940 mvneta_transmit(struct ifnet *ifp, struct mbuf *m)
1942 struct mvneta_softc *sc;
1943 struct mvneta_tx_ring *tx;
1949 /* Use default queue if there is no flow id as thread can migrate. */
1950 if (__predict_true(M_HASHTYPE_GET(m) != M_HASHTYPE_NONE))
1951 q = m->m_pkthdr.flowid % MVNETA_TX_QNUM_MAX;
1955 tx = MVNETA_TX_RING(sc, q);
1957 /* If buf_ring is full start transmit immediatly. */
1958 if (buf_ring_full(tx->br)) {
1959 mvneta_tx_lockq(sc, q);
1960 mvneta_xmit_locked(sc, q);
1961 mvneta_tx_unlockq(sc, q);
1965 * If the buf_ring is empty we will not reorder packets.
1966 * If the lock is available transmit without using buf_ring.
1968 if (buf_ring_empty(tx->br) && mvneta_tx_trylockq(sc, q) != 0) {
1969 error = mvneta_xmitfast_locked(sc, q, &m);
1970 mvneta_tx_unlockq(sc, q);
1971 if (__predict_true(error == 0))
1974 /* Transmit can fail in fastpath. */
1975 if (__predict_false(m == NULL))
1979 /* Enqueue then schedule taskqueue. */
1980 error = drbr_enqueue(ifp, tx->br, m);
1981 if (__predict_false(error != 0))
1984 taskqueue_enqueue(tx->taskq, &tx->task);
1989 mvneta_xmit_locked(struct mvneta_softc *sc, int q)
1992 struct mvneta_tx_ring *tx;
1996 KASSERT_TX_MTX(sc, q);
1998 tx = MVNETA_TX_RING(sc, q);
2001 while ((m = drbr_peek(ifp, tx->br)) != NULL) {
2002 error = mvneta_xmitfast_locked(sc, q, &m);
2003 if (__predict_false(error != 0)) {
2005 drbr_putback(ifp, tx->br, m);
2007 drbr_advance(ifp, tx->br);
2010 drbr_advance(ifp, tx->br);
2015 #else /* !MVNETA_MULTIQUEUE */
2017 mvneta_start(struct ifnet *ifp)
2019 struct mvneta_softc *sc;
2020 struct mvneta_tx_ring *tx;
2024 tx = MVNETA_TX_RING(sc, 0);
2026 mvneta_tx_lockq(sc, 0);
2027 error = mvneta_xmit_locked(sc, 0);
2028 mvneta_tx_unlockq(sc, 0);
2029 /* Handle retransmit in the background taskq. */
2030 if (__predict_false(error != 0 && error != ENETDOWN))
2031 taskqueue_enqueue(tx->taskq, &tx->task);
2035 mvneta_xmit_locked(struct mvneta_softc *sc, int q)
2038 struct mvneta_tx_ring *tx;
2042 KASSERT_TX_MTX(sc, q);
2044 tx = MVNETA_TX_RING(sc, 0);
2047 while (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) {
2048 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
2052 error = mvneta_xmitfast_locked(sc, q, &m);
2053 if (__predict_false(error != 0)) {
2055 IFQ_DRV_PREPEND(&ifp->if_snd, m);
2065 mvneta_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
2067 struct mvneta_softc *sc;
2068 struct mvneta_rx_ring *rx;
2076 ifr = (struct ifreq *)data;
2080 if (ifp->if_flags & IFF_UP) {
2081 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
2082 flags = ifp->if_flags ^ sc->mvneta_if_flags;
2085 sc->mvneta_if_flags = ifp->if_flags;
2087 if ((flags & IFF_PROMISC) != 0)
2088 mvneta_filter_setup(sc);
2090 mvneta_init_locked(sc);
2091 sc->mvneta_if_flags = ifp->if_flags;
2092 if (sc->phy_attached)
2093 mii_mediachg(sc->mii);
2094 mvneta_sc_unlock(sc);
2097 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2098 mvneta_stop_locked(sc);
2100 sc->mvneta_if_flags = ifp->if_flags;
2101 mvneta_sc_unlock(sc);
2104 if (ifp->if_mtu > sc->tx_csum_limit &&
2105 ifr->ifr_reqcap & IFCAP_TXCSUM)
2106 ifr->ifr_reqcap &= ~IFCAP_TXCSUM;
2107 mask = ifp->if_capenable ^ ifr->ifr_reqcap;
2108 if (mask & IFCAP_HWCSUM) {
2109 ifp->if_capenable &= ~IFCAP_HWCSUM;
2110 ifp->if_capenable |= IFCAP_HWCSUM & ifr->ifr_reqcap;
2111 if (ifp->if_capenable & IFCAP_TXCSUM)
2112 ifp->if_hwassist = CSUM_IP | CSUM_TCP |
2115 ifp->if_hwassist = 0;
2117 if (mask & IFCAP_LRO) {
2119 ifp->if_capenable ^= IFCAP_LRO;
2120 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) {
2121 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
2122 rx = MVNETA_RX_RING(sc, q);
2123 rx->lro_enabled = !rx->lro_enabled;
2126 mvneta_sc_unlock(sc);
2128 VLAN_CAPABILITIES(ifp);
2131 if ((IFM_SUBTYPE(ifr->ifr_media) == IFM_1000_T ||
2132 IFM_SUBTYPE(ifr->ifr_media) == IFM_2500_T) &&
2133 (ifr->ifr_media & IFM_FDX) == 0) {
2134 device_printf(sc->dev,
2135 "%s half-duplex unsupported\n",
2136 IFM_SUBTYPE(ifr->ifr_media) == IFM_1000_T ?
2142 case SIOCGIFMEDIA: /* FALLTHROUGH */
2144 if (!sc->phy_attached)
2145 error = ifmedia_ioctl(ifp, ifr, &sc->mvneta_ifmedia,
2148 error = ifmedia_ioctl(ifp, ifr, &sc->mii->mii_media,
2152 if (ifr->ifr_mtu < 68 || ifr->ifr_mtu > MVNETA_MAX_FRAME -
2153 MVNETA_ETHER_SIZE) {
2156 ifp->if_mtu = ifr->ifr_mtu;
2158 if (ifp->if_mtu + MVNETA_ETHER_SIZE <= MCLBYTES) {
2159 sc->rx_frame_size = MCLBYTES;
2161 sc->rx_frame_size = MJUM9BYTES;
2163 if (ifp->if_mtu > sc->tx_csum_limit) {
2164 ifp->if_capenable &= ~IFCAP_TXCSUM;
2165 ifp->if_hwassist = 0;
2167 ifp->if_capenable |= IFCAP_TXCSUM;
2168 ifp->if_hwassist = CSUM_IP | CSUM_TCP |
2172 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
2174 mvneta_stop_locked(sc);
2176 * Reinitialize RX queues.
2177 * We need to update RX descriptor size.
2179 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
2180 mvneta_rx_lockq(sc, q);
2181 if (mvneta_rx_queue_init(ifp, q) != 0) {
2182 device_printf(sc->dev,
2183 "initialization failed:"
2184 " cannot initialize queue\n");
2185 mvneta_rx_unlockq(sc, q);
2189 mvneta_rx_unlockq(sc, q);
2191 /* Trigger reinitialization */
2192 mvneta_init_locked(sc);
2194 mvneta_sc_unlock(sc);
2199 error = ether_ioctl(ifp, cmd, data);
2207 mvneta_init_locked(void *arg)
2209 struct mvneta_softc *sc;
2217 if (!device_is_attached(sc->dev) ||
2218 (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
2221 mvneta_disable_intr(sc);
2222 callout_stop(&sc->tick_ch);
2224 /* Get the latest mac address */
2225 bcopy(IF_LLADDR(ifp), sc->enaddr, ETHER_ADDR_LEN);
2226 mvneta_set_mac_address(sc, sc->enaddr);
2227 mvneta_filter_setup(sc);
2229 /* Start DMA Engine */
2230 MVNETA_WRITE(sc, MVNETA_PRXINIT, 0x00000000);
2231 MVNETA_WRITE(sc, MVNETA_PTXINIT, 0x00000000);
2232 MVNETA_WRITE(sc, MVNETA_PACC, MVNETA_PACC_ACCELERATIONMODE_EDM);
2235 reg = MVNETA_READ(sc, MVNETA_PMACC0);
2236 reg |= MVNETA_PMACC0_PORTEN;
2237 reg &= ~MVNETA_PMACC0_FRAMESIZELIMIT_MASK;
2238 reg |= MVNETA_PMACC0_FRAMESIZELIMIT(ifp->if_mtu + MVNETA_ETHER_SIZE);
2239 MVNETA_WRITE(sc, MVNETA_PMACC0, reg);
2241 /* Allow access to each TXQ/RXQ from both CPU's */
2242 for (cpu = 0; cpu < mp_ncpus; ++cpu)
2243 MVNETA_WRITE(sc, MVNETA_PCP2Q(cpu),
2244 MVNETA_PCP2Q_TXQEN_MASK | MVNETA_PCP2Q_RXQEN_MASK);
2246 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
2247 mvneta_rx_lockq(sc, q);
2248 mvneta_rx_queue_refill(sc, q);
2249 mvneta_rx_unlockq(sc, q);
2252 if (!sc->phy_attached)
2255 /* Enable interrupt */
2256 mvneta_enable_intr(sc);
2259 callout_schedule(&sc->tick_ch, hz);
2261 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2265 mvneta_init(void *arg)
2267 struct mvneta_softc *sc;
2271 mvneta_init_locked(sc);
2272 if (sc->phy_attached)
2273 mii_mediachg(sc->mii);
2274 mvneta_sc_unlock(sc);
2279 mvneta_stop_locked(struct mvneta_softc *sc)
2282 struct mvneta_rx_ring *rx;
2283 struct mvneta_tx_ring *tx;
2288 if (ifp == NULL || (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2291 mvneta_disable_intr(sc);
2293 callout_stop(&sc->tick_ch);
2295 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2298 if (sc->linkup == TRUE)
2299 mvneta_linkdown(sc);
2301 /* Reset the MAC Port Enable bit */
2302 reg = MVNETA_READ(sc, MVNETA_PMACC0);
2303 reg &= ~MVNETA_PMACC0_PORTEN;
2304 MVNETA_WRITE(sc, MVNETA_PMACC0, reg);
2306 /* Disable each of queue */
2307 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
2308 rx = MVNETA_RX_RING(sc, q);
2310 mvneta_rx_lockq(sc, q);
2311 mvneta_ring_flush_rx_queue(sc, q);
2312 mvneta_rx_unlockq(sc, q);
2316 * Hold Reset state of DMA Engine
2317 * (must write 0x0 to restart it)
2319 MVNETA_WRITE(sc, MVNETA_PRXINIT, 0x00000001);
2320 MVNETA_WRITE(sc, MVNETA_PTXINIT, 0x00000001);
2322 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
2323 tx = MVNETA_TX_RING(sc, q);
2325 mvneta_tx_lockq(sc, q);
2326 mvneta_ring_flush_tx_queue(sc, q);
2327 mvneta_tx_unlockq(sc, q);
2332 mvneta_stop(struct mvneta_softc *sc)
2336 mvneta_stop_locked(sc);
2337 mvneta_sc_unlock(sc);
2341 mvneta_mediachange(struct ifnet *ifp)
2343 struct mvneta_softc *sc;
2347 if (!sc->phy_attached && !sc->use_inband_status) {
2348 /* We shouldn't be here */
2349 if_printf(ifp, "Cannot change media in fixed-link mode!\n");
2353 if (sc->use_inband_status) {
2354 mvneta_update_media(sc, sc->mvneta_ifmedia.ifm_media);
2361 mii_mediachg(sc->mii);
2363 mvneta_sc_unlock(sc);
2369 mvneta_get_media(struct mvneta_softc *sc, struct ifmediareq *ifmr)
2373 psr = MVNETA_READ(sc, MVNETA_PSR);
2376 if (psr & MVNETA_PSR_GMIISPEED)
2377 ifmr->ifm_active = IFM_ETHER_SUBTYPE_SET(IFM_1000_T);
2378 else if (psr & MVNETA_PSR_MIISPEED)
2379 ifmr->ifm_active = IFM_ETHER_SUBTYPE_SET(IFM_100_TX);
2380 else if (psr & MVNETA_PSR_LINKUP)
2381 ifmr->ifm_active = IFM_ETHER_SUBTYPE_SET(IFM_10_T);
2384 if (psr & MVNETA_PSR_FULLDX)
2385 ifmr->ifm_active |= IFM_FDX;
2388 ifmr->ifm_status = IFM_AVALID;
2389 if (psr & MVNETA_PSR_LINKUP)
2390 ifmr->ifm_status |= IFM_ACTIVE;
2394 mvneta_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
2396 struct mvneta_softc *sc;
2397 struct mii_data *mii;
2401 if (!sc->phy_attached && !sc->use_inband_status) {
2402 ifmr->ifm_status = IFM_AVALID | IFM_ACTIVE;
2408 if (sc->use_inband_status) {
2409 mvneta_get_media(sc, ifmr);
2410 mvneta_sc_unlock(sc);
2417 ifmr->ifm_active = mii->mii_media_active;
2418 ifmr->ifm_status = mii->mii_media_status;
2420 mvneta_sc_unlock(sc);
2427 mvneta_update_autoneg(struct mvneta_softc *sc, int enable)
2432 reg = MVNETA_READ(sc, MVNETA_PANC);
2433 reg &= ~(MVNETA_PANC_FORCELINKFAIL | MVNETA_PANC_FORCELINKPASS |
2434 MVNETA_PANC_ANFCEN);
2435 reg |= MVNETA_PANC_ANDUPLEXEN | MVNETA_PANC_ANSPEEDEN |
2436 MVNETA_PANC_INBANDANEN;
2437 MVNETA_WRITE(sc, MVNETA_PANC, reg);
2439 reg = MVNETA_READ(sc, MVNETA_PMACC2);
2440 reg |= MVNETA_PMACC2_INBANDANMODE;
2441 MVNETA_WRITE(sc, MVNETA_PMACC2, reg);
2443 reg = MVNETA_READ(sc, MVNETA_PSOMSCD);
2444 reg |= MVNETA_PSOMSCD_ENABLE;
2445 MVNETA_WRITE(sc, MVNETA_PSOMSCD, reg);
2447 reg = MVNETA_READ(sc, MVNETA_PANC);
2448 reg &= ~(MVNETA_PANC_FORCELINKFAIL | MVNETA_PANC_FORCELINKPASS |
2449 MVNETA_PANC_ANDUPLEXEN | MVNETA_PANC_ANSPEEDEN |
2450 MVNETA_PANC_INBANDANEN);
2451 MVNETA_WRITE(sc, MVNETA_PANC, reg);
2453 reg = MVNETA_READ(sc, MVNETA_PMACC2);
2454 reg &= ~MVNETA_PMACC2_INBANDANMODE;
2455 MVNETA_WRITE(sc, MVNETA_PMACC2, reg);
2457 reg = MVNETA_READ(sc, MVNETA_PSOMSCD);
2458 reg &= ~MVNETA_PSOMSCD_ENABLE;
2459 MVNETA_WRITE(sc, MVNETA_PSOMSCD, reg);
2464 mvneta_update_media(struct mvneta_softc *sc, int media)
2473 mvneta_linkreset(sc);
2475 running = (sc->ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
2477 mvneta_stop_locked(sc);
2479 sc->autoneg = (IFM_SUBTYPE(media) == IFM_AUTO);
2481 if (sc->use_inband_status)
2482 mvneta_update_autoneg(sc, IFM_SUBTYPE(media) == IFM_AUTO);
2484 mvneta_update_eee(sc);
2485 mvneta_update_fc(sc);
2487 if (IFM_SUBTYPE(media) != IFM_AUTO) {
2488 reg = MVNETA_READ(sc, MVNETA_PANC);
2489 reg &= ~(MVNETA_PANC_SETGMIISPEED |
2490 MVNETA_PANC_SETMIISPEED |
2491 MVNETA_PANC_SETFULLDX);
2492 if (IFM_SUBTYPE(media) == IFM_1000_T ||
2493 IFM_SUBTYPE(media) == IFM_2500_T) {
2494 if ((media & IFM_FDX) == 0) {
2495 device_printf(sc->dev,
2496 "%s half-duplex unsupported\n",
2497 IFM_SUBTYPE(media) == IFM_1000_T ?
2503 reg |= MVNETA_PANC_SETGMIISPEED;
2504 } else if (IFM_SUBTYPE(media) == IFM_100_TX)
2505 reg |= MVNETA_PANC_SETMIISPEED;
2507 if (media & IFM_FDX)
2508 reg |= MVNETA_PANC_SETFULLDX;
2510 MVNETA_WRITE(sc, MVNETA_PANC, reg);
2514 mvneta_init_locked(sc);
2515 mvneta_sc_unlock(sc);
2520 mvneta_adjust_link(struct mvneta_softc *sc)
2522 boolean_t phy_linkup;
2526 mvneta_update_eee(sc);
2527 mvneta_update_fc(sc);
2529 /* Check for link change */
2530 phy_linkup = (sc->mii->mii_media_status &
2531 (IFM_AVALID | IFM_ACTIVE)) == (IFM_AVALID | IFM_ACTIVE);
2533 if (sc->linkup != phy_linkup)
2534 mvneta_linkupdate(sc, phy_linkup);
2536 /* Don't update media on disabled link */
2540 /* Check for media type change */
2541 if (sc->mvneta_media != sc->mii->mii_media_active) {
2542 sc->mvneta_media = sc->mii->mii_media_active;
2544 reg = MVNETA_READ(sc, MVNETA_PANC);
2545 reg &= ~(MVNETA_PANC_SETGMIISPEED |
2546 MVNETA_PANC_SETMIISPEED |
2547 MVNETA_PANC_SETFULLDX);
2548 if (IFM_SUBTYPE(sc->mvneta_media) == IFM_1000_T ||
2549 IFM_SUBTYPE(sc->mvneta_media) == IFM_2500_T) {
2550 reg |= MVNETA_PANC_SETGMIISPEED;
2551 } else if (IFM_SUBTYPE(sc->mvneta_media) == IFM_100_TX)
2552 reg |= MVNETA_PANC_SETMIISPEED;
2554 if (sc->mvneta_media & IFM_FDX)
2555 reg |= MVNETA_PANC_SETFULLDX;
2557 MVNETA_WRITE(sc, MVNETA_PANC, reg);
2562 mvneta_link_isr(struct mvneta_softc *sc)
2568 linkup = MVNETA_IS_LINKUP(sc) ? TRUE : FALSE;
2569 if (sc->linkup == linkup)
2575 mvneta_linkdown(sc);
2579 "%s: link %s\n", device_xname(sc->dev), linkup ? "up" : "down");
2584 mvneta_linkupdate(struct mvneta_softc *sc, boolean_t linkup)
2592 mvneta_linkdown(sc);
2596 "%s: link %s\n", device_xname(sc->dev), linkup ? "up" : "down");
2601 mvneta_update_eee(struct mvneta_softc *sc)
2607 /* set EEE parameters */
2608 reg = MVNETA_READ(sc, MVNETA_LPIC1);
2610 reg |= MVNETA_LPIC1_LPIRE;
2612 reg &= ~MVNETA_LPIC1_LPIRE;
2613 MVNETA_WRITE(sc, MVNETA_LPIC1, reg);
2617 mvneta_update_fc(struct mvneta_softc *sc)
2623 reg = MVNETA_READ(sc, MVNETA_PANC);
2625 /* Flow control negotiation */
2626 reg |= MVNETA_PANC_PAUSEADV;
2627 reg |= MVNETA_PANC_ANFCEN;
2629 /* Disable flow control negotiation */
2630 reg &= ~MVNETA_PANC_PAUSEADV;
2631 reg &= ~MVNETA_PANC_ANFCEN;
2634 MVNETA_WRITE(sc, MVNETA_PANC, reg);
2638 mvneta_linkup(struct mvneta_softc *sc)
2644 if (!sc->use_inband_status) {
2645 reg = MVNETA_READ(sc, MVNETA_PANC);
2646 reg |= MVNETA_PANC_FORCELINKPASS;
2647 reg &= ~MVNETA_PANC_FORCELINKFAIL;
2648 MVNETA_WRITE(sc, MVNETA_PANC, reg);
2651 mvneta_qflush(sc->ifp);
2654 if_link_state_change(sc->ifp, LINK_STATE_UP);
2658 mvneta_linkdown(struct mvneta_softc *sc)
2664 if (!sc->use_inband_status) {
2665 reg = MVNETA_READ(sc, MVNETA_PANC);
2666 reg &= ~MVNETA_PANC_FORCELINKPASS;
2667 reg |= MVNETA_PANC_FORCELINKFAIL;
2668 MVNETA_WRITE(sc, MVNETA_PANC, reg);
2671 mvneta_portdown(sc);
2672 mvneta_qflush(sc->ifp);
2674 if_link_state_change(sc->ifp, LINK_STATE_DOWN);
2678 mvneta_linkreset(struct mvneta_softc *sc)
2680 struct mii_softc *mii;
2682 if (sc->phy_attached) {
2683 /* Force reset PHY */
2684 mii = LIST_FIRST(&sc->mii->mii_phys);
2694 mvneta_tx_queue(struct mvneta_softc *sc, struct mbuf **mbufp, int q)
2697 bus_dma_segment_t txsegs[MVNETA_TX_SEGLIMIT];
2698 struct mbuf *mtmp, *mbuf;
2699 struct mvneta_tx_ring *tx;
2700 struct mvneta_buf *txbuf;
2701 struct mvneta_tx_desc *t;
2703 int start, used, error, i, txnsegs;
2706 tx = MVNETA_TX_RING(sc, q);
2707 DASSERT(tx->used >= 0);
2708 DASSERT(tx->used <= MVNETA_TX_RING_CNT);
2712 if (__predict_false(mbuf->m_flags & M_VLANTAG)) {
2713 mbuf = ether_vlanencap(mbuf, mbuf->m_pkthdr.ether_vtag);
2719 mbuf->m_flags &= ~M_VLANTAG;
2723 if (__predict_false(mbuf->m_next != NULL &&
2724 (mbuf->m_pkthdr.csum_flags &
2725 (CSUM_IP | CSUM_TCP | CSUM_UDP)) != 0)) {
2726 if (M_WRITABLE(mbuf) == 0) {
2727 mtmp = m_dup(mbuf, M_NOWAIT);
2734 *mbufp = mbuf = mtmp;
2738 /* load mbuf using dmamap of 1st descriptor */
2739 txbuf = &tx->txbuf[tx->cpu];
2740 error = bus_dmamap_load_mbuf_sg(sc->txmbuf_dtag,
2741 txbuf->dmap, mbuf, txsegs, &txnsegs,
2743 if (__predict_false(error != 0)) {
2745 CTR3(KTR_SPARE2, "%s:%u bus_dmamap_load_mbuf_sg error=%d", ifp->if_xname, q, error);
2747 /* This is the only recoverable error (except EFBIG). */
2748 if (error != ENOMEM) {
2757 if (__predict_false(txnsegs <= 0
2758 || (txnsegs + tx->used) > MVNETA_TX_RING_CNT)) {
2759 /* we have no enough descriptors or mbuf is broken */
2761 CTR3(KTR_SPARE2, "%s:%u not enough descriptors txnsegs=%d",
2762 ifp->if_xname, q, txnsegs);
2764 bus_dmamap_unload(sc->txmbuf_dtag, txbuf->dmap);
2767 DASSERT(txbuf->m == NULL);
2769 /* remember mbuf using 1st descriptor */
2771 bus_dmamap_sync(sc->txmbuf_dtag, txbuf->dmap,
2772 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
2774 /* load to tx descriptors */
2777 for (i = 0; i < txnsegs; i++) {
2778 t = &tx->desc[tx->cpu];
2782 if (__predict_true(i == 0)) {
2783 /* 1st descriptor */
2784 t->command |= MVNETA_TX_CMD_W_PACKET_OFFSET(0);
2785 t->command |= MVNETA_TX_CMD_F;
2786 mvneta_tx_set_csumflag(ifp, t, mbuf);
2788 t->bufptr_pa = txsegs[i].ds_addr;
2789 t->bytecnt = txsegs[i].ds_len;
2790 tx->cpu = tx_counter_adv(tx->cpu, 1);
2795 /* t is last descriptor here */
2797 t->command |= MVNETA_TX_CMD_L|MVNETA_TX_CMD_PADDING;
2799 bus_dmamap_sync(sc->tx_dtag, tx->desc_map,
2800 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
2802 while (__predict_false(used > 255)) {
2803 ptxsu = MVNETA_PTXSU_NOWD(255);
2804 MVNETA_WRITE(sc, MVNETA_PTXSU(q), ptxsu);
2807 if (__predict_true(used > 0)) {
2808 ptxsu = MVNETA_PTXSU_NOWD(used);
2809 MVNETA_WRITE(sc, MVNETA_PTXSU(q), ptxsu);
2815 mvneta_tx_set_csumflag(struct ifnet *ifp,
2816 struct mvneta_tx_desc *t, struct mbuf *m)
2818 struct ether_header *eh;
2820 uint32_t iphl, ipoff;
2824 csum_flags = ifp->if_hwassist & m->m_pkthdr.csum_flags;
2825 eh = mtod(m, struct ether_header *);
2827 switch (ntohs(eh->ether_type)) {
2829 ipoff = ETHER_HDR_LEN;
2831 case ETHERTYPE_VLAN:
2832 ipoff = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
2838 if (__predict_true(csum_flags & (CSUM_IP|CSUM_IP_TCP|CSUM_IP_UDP))) {
2839 ip = (struct ip *)(m->m_data + ipoff);
2840 iphl = ip->ip_hl<<2;
2841 t->command |= MVNETA_TX_CMD_L3_IP4;
2843 t->command |= MVNETA_TX_CMD_L4_CHECKSUM_NONE;
2849 if (csum_flags & CSUM_IP) {
2850 t->command |= MVNETA_TX_CMD_IP4_CHECKSUM;
2854 if (csum_flags & CSUM_IP_TCP) {
2855 t->command |= MVNETA_TX_CMD_L4_CHECKSUM_NOFRAG;
2856 t->command |= MVNETA_TX_CMD_L4_TCP;
2857 } else if (csum_flags & CSUM_IP_UDP) {
2858 t->command |= MVNETA_TX_CMD_L4_CHECKSUM_NOFRAG;
2859 t->command |= MVNETA_TX_CMD_L4_UDP;
2861 t->command |= MVNETA_TX_CMD_L4_CHECKSUM_NONE;
2864 t->command |= MVNETA_TX_CMD_IP_HEADER_LEN(iphl >> 2);
2865 t->command |= MVNETA_TX_CMD_L3_OFFSET(ipoff);
2869 mvneta_tx_queue_complete(struct mvneta_softc *sc, int q)
2871 struct mvneta_tx_ring *tx;
2872 struct mvneta_buf *txbuf;
2873 struct mvneta_tx_desc *t;
2874 uint32_t ptxs, ptxsu, ndesc;
2877 KASSERT_TX_MTX(sc, q);
2879 tx = MVNETA_TX_RING(sc, q);
2880 if (__predict_false(tx->queue_status == MVNETA_QUEUE_DISABLED))
2883 ptxs = MVNETA_READ(sc, MVNETA_PTXS(q));
2884 ndesc = MVNETA_PTXS_GET_TBC(ptxs);
2886 if (__predict_false(ndesc == 0)) {
2888 tx->queue_status = MVNETA_QUEUE_IDLE;
2889 else if (tx->queue_status == MVNETA_QUEUE_WORKING &&
2890 ((ticks - tx->watchdog_time) > MVNETA_WATCHDOG))
2891 tx->queue_hung = TRUE;
2896 CTR3(KTR_SPARE2, "%s:%u tx_complete begin ndesc=%u",
2897 sc->ifp->if_xname, q, ndesc);
2900 bus_dmamap_sync(sc->tx_dtag, tx->desc_map,
2901 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2903 for (i = 0; i < ndesc; i++) {
2904 t = &tx->desc[tx->dma];
2906 if (t->flags & MVNETA_TX_F_ES)
2907 CTR3(KTR_SPARE2, "%s tx error queue %d desc %d",
2908 sc->ifp->if_xname, q, tx->dma);
2910 txbuf = &tx->txbuf[tx->dma];
2911 if (__predict_true(txbuf->m != NULL)) {
2912 DASSERT((t->command & MVNETA_TX_CMD_F) != 0);
2913 bus_dmamap_unload(sc->txmbuf_dtag, txbuf->dmap);
2918 DASSERT((t->flags & MVNETA_TX_CMD_F) == 0);
2919 tx->dma = tx_counter_adv(tx->dma, 1);
2922 DASSERT(tx->used >= 0);
2923 DASSERT(tx->used <= MVNETA_TX_RING_CNT);
2924 while (__predict_false(ndesc > 255)) {
2925 ptxsu = MVNETA_PTXSU_NORB(255);
2926 MVNETA_WRITE(sc, MVNETA_PTXSU(q), ptxsu);
2929 if (__predict_true(ndesc > 0)) {
2930 ptxsu = MVNETA_PTXSU_NORB(ndesc);
2931 MVNETA_WRITE(sc, MVNETA_PTXSU(q), ptxsu);
2934 CTR5(KTR_SPARE2, "%s:%u tx_complete tx_cpu=%d tx_dma=%d tx_used=%d",
2935 sc->ifp->if_xname, q, tx->cpu, tx->dma, tx->used);
2938 tx->watchdog_time = ticks;
2941 tx->queue_status = MVNETA_QUEUE_IDLE;
2945 * Do a final TX complete when TX is idle.
2948 mvneta_tx_drain(struct mvneta_softc *sc)
2950 struct mvneta_tx_ring *tx;
2954 * Handle trailing mbuf on TX queue.
2955 * Check is done lockess to avoid TX path contention.
2957 for (q = 0; q < MVNETA_TX_QNUM_MAX; q++) {
2958 tx = MVNETA_TX_RING(sc, q);
2959 if ((ticks - tx->watchdog_time) > MVNETA_WATCHDOG_TXCOMP &&
2961 mvneta_tx_lockq(sc, q);
2962 mvneta_tx_queue_complete(sc, q);
2963 mvneta_tx_unlockq(sc, q);
2972 mvneta_rx(struct mvneta_softc *sc, int q, int count)
2974 uint32_t prxs, npkt;
2978 mvneta_rx_lockq(sc, q);
2979 prxs = MVNETA_READ(sc, MVNETA_PRXS(q));
2980 npkt = MVNETA_PRXS_GET_ODC(prxs);
2981 if (__predict_false(npkt == 0))
2984 if (count > 0 && npkt > count) {
2988 mvneta_rx_queue(sc, q, npkt);
2990 mvneta_rx_unlockq(sc, q);
2995 * Helper routine for updating PRXSU register of a given queue.
2996 * Handles number of processed descriptors bigger than maximum acceptable value.
2998 STATIC __inline void
2999 mvneta_prxsu_update(struct mvneta_softc *sc, int q, int processed)
3003 while (__predict_false(processed > 255)) {
3004 prxsu = MVNETA_PRXSU_NOOFPROCESSEDDESCRIPTORS(255);
3005 MVNETA_WRITE(sc, MVNETA_PRXSU(q), prxsu);
3008 prxsu = MVNETA_PRXSU_NOOFPROCESSEDDESCRIPTORS(processed);
3009 MVNETA_WRITE(sc, MVNETA_PRXSU(q), prxsu);
3012 static __inline void
3013 mvneta_prefetch(void *p)
3016 __builtin_prefetch(p);
3020 mvneta_rx_queue(struct mvneta_softc *sc, int q, int npkt)
3023 struct mvneta_rx_ring *rx;
3024 struct mvneta_rx_desc *r;
3025 struct mvneta_buf *rxbuf;
3027 struct lro_ctrl *lro;
3028 struct lro_entry *queued;
3030 int i, pktlen, processed, ndma;
3032 KASSERT_RX_MTX(sc, q);
3035 rx = MVNETA_RX_RING(sc, q);
3038 if (__predict_false(rx->queue_status == MVNETA_QUEUE_DISABLED))
3041 bus_dmamap_sync(sc->rx_dtag, rx->desc_map,
3042 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
3044 for (i = 0; i < npkt; i++) {
3045 /* Prefetch next desc, rxbuf. */
3046 ndma = rx_counter_adv(rx->dma, 1);
3047 mvneta_prefetch(&rx->desc[ndma]);
3048 mvneta_prefetch(&rx->rxbuf[ndma]);
3050 /* get descriptor and packet */
3051 r = &rx->desc[rx->dma];
3052 rxbuf = &rx->rxbuf[rx->dma];
3056 bus_dmamap_sync(sc->rxbuf_dtag, rxbuf->dmap,
3057 BUS_DMASYNC_POSTREAD);
3058 bus_dmamap_unload(sc->rxbuf_dtag, rxbuf->dmap);
3059 /* Prefetch mbuf header. */
3063 /* Drop desc with error status or not in a single buffer. */
3064 DASSERT((r->status & (MVNETA_RX_F|MVNETA_RX_L)) ==
3065 (MVNETA_RX_F|MVNETA_RX_L));
3066 if (__predict_false((r->status & MVNETA_RX_ES) ||
3067 (r->status & (MVNETA_RX_F|MVNETA_RX_L)) !=
3068 (MVNETA_RX_F|MVNETA_RX_L)))
3072 * [ OFF | MH | PKT | CRC ]
3073 * bytecnt cover MH, PKT, CRC
3075 pktlen = r->bytecnt - ETHER_CRC_LEN - MVNETA_HWHEADER_SIZE;
3076 pktbuf = (uint8_t *)rx->rxbuf_virt_addr[rx->dma] + MVNETA_PACKET_OFFSET +
3077 MVNETA_HWHEADER_SIZE;
3079 /* Prefetch mbuf data. */
3080 mvneta_prefetch(pktbuf);
3082 /* Write value to mbuf (avoid read). */
3084 m->m_len = m->m_pkthdr.len = pktlen;
3085 m->m_pkthdr.rcvif = ifp;
3086 mvneta_rx_set_csumflag(ifp, r, m);
3088 /* Increase rx_dma before releasing the lock. */
3091 if (__predict_false(rx->lro_enabled &&
3092 ((r->status & MVNETA_RX_L3_IP) != 0) &&
3093 ((r->status & MVNETA_RX_L4_MASK) == MVNETA_RX_L4_TCP) &&
3094 (m->m_pkthdr.csum_flags &
3095 (CSUM_DATA_VALID | CSUM_PSEUDO_HDR)) ==
3096 (CSUM_DATA_VALID | CSUM_PSEUDO_HDR))) {
3097 if (rx->lro.lro_cnt != 0) {
3098 if (tcp_lro_rx(&rx->lro, m, 0) == 0)
3103 mvneta_rx_unlockq(sc, q);
3104 (*ifp->if_input)(ifp, m);
3105 mvneta_rx_lockq(sc, q);
3107 * Check whether this queue has been disabled in the
3108 * meantime. If yes, then clear LRO and exit.
3110 if(__predict_false(rx->queue_status == MVNETA_QUEUE_DISABLED))
3113 /* Refresh receive ring to avoid stall and minimize jitter. */
3114 if (processed >= MVNETA_RX_REFILL_COUNT) {
3115 mvneta_prxsu_update(sc, q, processed);
3116 mvneta_rx_queue_refill(sc, q);
3123 /* Refresh receive ring to avoid stall and minimize jitter. */
3124 if (processed >= MVNETA_RX_REFILL_COUNT) {
3125 mvneta_prxsu_update(sc, q, processed);
3126 mvneta_rx_queue_refill(sc, q);
3131 CTR3(KTR_SPARE2, "%s:%u %u packets received", ifp->if_xname, q, npkt);
3133 /* DMA status update */
3134 mvneta_prxsu_update(sc, q, processed);
3135 /* Refill the rest of buffers if there are any to refill */
3136 mvneta_rx_queue_refill(sc, q);
3140 * Flush any outstanding LRO work
3143 while (__predict_false((queued = LIST_FIRST(&lro->lro_active)) != NULL)) {
3144 LIST_REMOVE(LIST_FIRST((&lro->lro_active)), next);
3145 tcp_lro_flush(lro, queued);
3150 mvneta_rx_buf_free(struct mvneta_softc *sc, struct mvneta_buf *rxbuf)
3153 bus_dmamap_unload(sc->rxbuf_dtag, rxbuf->dmap);
3154 /* This will remove all data at once */
3159 mvneta_rx_queue_refill(struct mvneta_softc *sc, int q)
3161 struct mvneta_rx_ring *rx;
3162 struct mvneta_rx_desc *r;
3163 struct mvneta_buf *rxbuf;
3164 bus_dma_segment_t segs;
3166 uint32_t prxs, prxsu, ndesc;
3167 int npkt, refill, nsegs, error;
3169 KASSERT_RX_MTX(sc, q);
3171 rx = MVNETA_RX_RING(sc, q);
3172 prxs = MVNETA_READ(sc, MVNETA_PRXS(q));
3173 ndesc = MVNETA_PRXS_GET_NODC(prxs) + MVNETA_PRXS_GET_ODC(prxs);
3174 refill = MVNETA_RX_RING_CNT - ndesc;
3176 CTR3(KTR_SPARE2, "%s:%u refill %u packets", sc->ifp->if_xname, q,
3179 if (__predict_false(refill <= 0))
3182 for (npkt = 0; npkt < refill; npkt++) {
3183 rxbuf = &rx->rxbuf[rx->cpu];
3184 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, sc->rx_frame_size);
3185 if (__predict_false(m == NULL)) {
3189 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size;
3191 error = bus_dmamap_load_mbuf_sg(sc->rxbuf_dtag, rxbuf->dmap,
3192 m, &segs, &nsegs, BUS_DMA_NOWAIT);
3193 if (__predict_false(error != 0 || nsegs != 1)) {
3194 KASSERT(1, ("Failed to load Rx mbuf DMA map"));
3199 /* Add the packet to the ring */
3201 r = &rx->desc[rx->cpu];
3202 r->bufptr_pa = segs.ds_addr;
3203 rx->rxbuf_virt_addr[rx->cpu] = m->m_data;
3205 rx->cpu = rx_counter_adv(rx->cpu, 1);
3208 if (refill == MVNETA_RX_RING_CNT)
3209 rx->needs_refill = TRUE;
3213 rx->needs_refill = FALSE;
3214 bus_dmamap_sync(sc->rx_dtag, rx->desc_map, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
3216 while (__predict_false(npkt > 255)) {
3217 prxsu = MVNETA_PRXSU_NOOFNEWDESCRIPTORS(255);
3218 MVNETA_WRITE(sc, MVNETA_PRXSU(q), prxsu);
3221 if (__predict_true(npkt > 0)) {
3222 prxsu = MVNETA_PRXSU_NOOFNEWDESCRIPTORS(npkt);
3223 MVNETA_WRITE(sc, MVNETA_PRXSU(q), prxsu);
3227 STATIC __inline void
3228 mvneta_rx_set_csumflag(struct ifnet *ifp,
3229 struct mvneta_rx_desc *r, struct mbuf *m)
3231 uint32_t csum_flags;
3234 if (__predict_false((r->status &
3235 (MVNETA_RX_IP_HEADER_OK|MVNETA_RX_L3_IP)) == 0))
3236 return; /* not a IP packet */
3239 if (__predict_true((r->status & MVNETA_RX_IP_HEADER_OK) ==
3240 MVNETA_RX_IP_HEADER_OK))
3241 csum_flags |= CSUM_L3_CALC|CSUM_L3_VALID;
3243 if (__predict_true((r->status & (MVNETA_RX_IP_HEADER_OK|MVNETA_RX_L3_IP)) ==
3244 (MVNETA_RX_IP_HEADER_OK|MVNETA_RX_L3_IP))) {
3246 switch (r->status & MVNETA_RX_L4_MASK) {
3247 case MVNETA_RX_L4_TCP:
3248 case MVNETA_RX_L4_UDP:
3249 csum_flags |= CSUM_L4_CALC;
3250 if (__predict_true((r->status &
3251 MVNETA_RX_L4_CHECKSUM_OK) == MVNETA_RX_L4_CHECKSUM_OK)) {
3252 csum_flags |= CSUM_L4_VALID;
3253 m->m_pkthdr.csum_data = htons(0xffff);
3256 case MVNETA_RX_L4_OTH:
3261 m->m_pkthdr.csum_flags = csum_flags;
3265 * MAC address filter
3268 mvneta_filter_setup(struct mvneta_softc *sc)
3271 uint32_t dfut[MVNETA_NDFUT], dfsmt[MVNETA_NDFSMT], dfomt[MVNETA_NDFOMT];
3277 memset(dfut, 0, sizeof(dfut));
3278 memset(dfsmt, 0, sizeof(dfsmt));
3279 memset(dfomt, 0, sizeof(dfomt));
3282 ifp->if_flags |= IFF_ALLMULTI;
3283 if (ifp->if_flags & (IFF_ALLMULTI|IFF_PROMISC)) {
3284 for (i = 0; i < MVNETA_NDFSMT; i++) {
3285 dfsmt[i] = dfomt[i] =
3286 MVNETA_DF(0, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS) |
3287 MVNETA_DF(1, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS) |
3288 MVNETA_DF(2, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS) |
3289 MVNETA_DF(3, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS);
3293 pxc = MVNETA_READ(sc, MVNETA_PXC);
3294 pxc &= ~(MVNETA_PXC_UPM | MVNETA_PXC_RXQ_MASK | MVNETA_PXC_RXQARP_MASK |
3295 MVNETA_PXC_TCPQ_MASK | MVNETA_PXC_UDPQ_MASK | MVNETA_PXC_BPDUQ_MASK);
3296 pxc |= MVNETA_PXC_RXQ(MVNETA_RX_QNUM_MAX-1);
3297 pxc |= MVNETA_PXC_RXQARP(MVNETA_RX_QNUM_MAX-1);
3298 pxc |= MVNETA_PXC_TCPQ(MVNETA_RX_QNUM_MAX-1);
3299 pxc |= MVNETA_PXC_UDPQ(MVNETA_RX_QNUM_MAX-1);
3300 pxc |= MVNETA_PXC_BPDUQ(MVNETA_RX_QNUM_MAX-1);
3301 pxc |= MVNETA_PXC_RB | MVNETA_PXC_RBIP | MVNETA_PXC_RBARP;
3302 if (ifp->if_flags & IFF_BROADCAST) {
3303 pxc &= ~(MVNETA_PXC_RB | MVNETA_PXC_RBIP | MVNETA_PXC_RBARP);
3305 if (ifp->if_flags & IFF_PROMISC) {
3306 pxc |= MVNETA_PXC_UPM;
3308 MVNETA_WRITE(sc, MVNETA_PXC, pxc);
3310 /* Set Destination Address Filter Unicast Table */
3311 if (ifp->if_flags & IFF_PROMISC) {
3312 /* pass all unicast addresses */
3313 for (i = 0; i < MVNETA_NDFUT; i++) {
3315 MVNETA_DF(0, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS) |
3316 MVNETA_DF(1, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS) |
3317 MVNETA_DF(2, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS) |
3318 MVNETA_DF(3, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS);
3321 i = sc->enaddr[5] & 0xf; /* last nibble */
3322 dfut[i>>2] = MVNETA_DF(i&3, MVNETA_DF_QUEUE(0) | MVNETA_DF_PASS);
3324 MVNETA_WRITE_REGION(sc, MVNETA_DFUT(0), dfut, MVNETA_NDFUT);
3326 /* Set Destination Address Filter Multicast Tables */
3327 MVNETA_WRITE_REGION(sc, MVNETA_DFSMT(0), dfsmt, MVNETA_NDFSMT);
3328 MVNETA_WRITE_REGION(sc, MVNETA_DFOMT(0), dfomt, MVNETA_NDFOMT);
3335 sysctl_read_mib(SYSCTL_HANDLER_ARGS)
3337 struct mvneta_sysctl_mib *arg;
3338 struct mvneta_softc *sc;
3341 arg = (struct mvneta_sysctl_mib *)arg1;
3348 if (arg->index < 0 || arg->index > MVNETA_PORTMIB_NOCOUNTER)
3353 mvneta_sc_unlock(sc);
3354 return sysctl_handle_64(oidp, &val, 0, req);
3359 sysctl_clear_mib(SYSCTL_HANDLER_ARGS)
3361 struct mvneta_softc *sc;
3365 sc = (struct mvneta_softc *)arg1;
3369 err = sysctl_handle_int(oidp, &val, 0, req);
3373 if (val < 0 || val > 1)
3378 mvneta_clear_mib(sc);
3379 mvneta_sc_unlock(sc);
3386 sysctl_set_queue_rxthtime(SYSCTL_HANDLER_ARGS)
3388 struct mvneta_sysctl_queue *arg;
3389 struct mvneta_rx_ring *rx;
3390 struct mvneta_softc *sc;
3391 uint32_t reg, time_mvtclk;
3395 arg = (struct mvneta_sysctl_queue *)arg1;
3398 if (arg->queue < 0 || arg->queue > MVNETA_RX_RING_CNT)
3400 if (arg->rxtx != MVNETA_SYSCTL_RX)
3407 /* read queue length */
3409 mvneta_rx_lockq(sc, arg->queue);
3410 rx = MVNETA_RX_RING(sc, arg->queue);
3411 time_mvtclk = rx->queue_th_time;
3412 time_us = ((uint64_t)time_mvtclk * 1000ULL * 1000ULL) / mvneta_get_clk();
3413 mvneta_rx_unlockq(sc, arg->queue);
3414 mvneta_sc_unlock(sc);
3416 err = sysctl_handle_int(oidp, &time_us, 0, req);
3421 mvneta_rx_lockq(sc, arg->queue);
3423 /* update queue length (0[sec] - 1[sec]) */
3424 if (time_us < 0 || time_us > (1000 * 1000)) {
3425 mvneta_rx_unlockq(sc, arg->queue);
3426 mvneta_sc_unlock(sc);
3430 (uint64_t)mvneta_get_clk() * (uint64_t)time_us / (1000ULL * 1000ULL);
3431 rx->queue_th_time = time_mvtclk;
3432 reg = MVNETA_PRXITTH_RITT(rx->queue_th_time);
3433 MVNETA_WRITE(sc, MVNETA_PRXITTH(arg->queue), reg);
3434 mvneta_rx_unlockq(sc, arg->queue);
3435 mvneta_sc_unlock(sc);
3441 sysctl_mvneta_init(struct mvneta_softc *sc)
3443 struct sysctl_ctx_list *ctx;
3444 struct sysctl_oid_list *children;
3445 struct sysctl_oid_list *rxchildren;
3446 struct sysctl_oid_list *qchildren, *mchildren;
3447 struct sysctl_oid *tree;
3449 struct mvneta_sysctl_queue *rxarg;
3450 #define MVNETA_SYSCTL_NAME(num) "queue" # num
3451 static const char *sysctl_queue_names[] = {
3452 MVNETA_SYSCTL_NAME(0), MVNETA_SYSCTL_NAME(1),
3453 MVNETA_SYSCTL_NAME(2), MVNETA_SYSCTL_NAME(3),
3454 MVNETA_SYSCTL_NAME(4), MVNETA_SYSCTL_NAME(5),
3455 MVNETA_SYSCTL_NAME(6), MVNETA_SYSCTL_NAME(7),
3457 #undef MVNETA_SYSCTL_NAME
3459 #ifndef NO_SYSCTL_DESCR
3460 #define MVNETA_SYSCTL_DESCR(num) "configuration parameters for queue " # num
3461 static const char *sysctl_queue_descrs[] = {
3462 MVNETA_SYSCTL_DESCR(0), MVNETA_SYSCTL_DESCR(1),
3463 MVNETA_SYSCTL_DESCR(2), MVNETA_SYSCTL_DESCR(3),
3464 MVNETA_SYSCTL_DESCR(4), MVNETA_SYSCTL_DESCR(5),
3465 MVNETA_SYSCTL_DESCR(6), MVNETA_SYSCTL_DESCR(7),
3467 #undef MVNETA_SYSCTL_DESCR
3471 ctx = device_get_sysctl_ctx(sc->dev);
3472 children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));
3474 tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "rx",
3475 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "NETA RX");
3476 rxchildren = SYSCTL_CHILDREN(tree);
3477 tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "mib",
3478 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "NETA MIB");
3479 mchildren = SYSCTL_CHILDREN(tree);
3482 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "flow_control",
3483 CTLFLAG_RW, &sc->cf_fc, 0, "flow control");
3484 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "lpi",
3485 CTLFLAG_RW, &sc->cf_lpi, 0, "Low Power Idle");
3490 /* dev.mvneta.[unit].mib.<mibs> */
3491 for (i = 0; i < MVNETA_PORTMIB_NOCOUNTER; i++) {
3492 struct mvneta_sysctl_mib *mib_arg = &sc->sysctl_mib[i];
3496 SYSCTL_ADD_PROC(ctx, mchildren, OID_AUTO,
3497 mvneta_mib_list[i].sysctl_name,
3498 CTLTYPE_U64 | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
3499 (void *)mib_arg, 0, sysctl_read_mib, "I",
3500 mvneta_mib_list[i].desc);
3502 SYSCTL_ADD_UQUAD(ctx, mchildren, OID_AUTO, "rx_discard",
3503 CTLFLAG_RD, &sc->counter_pdfc, "Port Rx Discard Frame Counter");
3504 SYSCTL_ADD_UQUAD(ctx, mchildren, OID_AUTO, "overrun",
3505 CTLFLAG_RD, &sc->counter_pofc, "Port Overrun Frame Counter");
3506 SYSCTL_ADD_UINT(ctx, mchildren, OID_AUTO, "watchdog",
3507 CTLFLAG_RD, &sc->counter_watchdog, 0, "TX Watchdog Counter");
3509 SYSCTL_ADD_PROC(ctx, mchildren, OID_AUTO, "reset",
3510 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
3511 (void *)sc, 0, sysctl_clear_mib, "I", "Reset MIB counters");
3513 for (q = 0; q < MVNETA_RX_QNUM_MAX; q++) {
3514 rxarg = &sc->sysctl_rx_queue[q];
3518 rxarg->rxtx = MVNETA_SYSCTL_RX;
3520 /* hw.mvneta.mvneta[unit].rx.[queue] */
3521 tree = SYSCTL_ADD_NODE(ctx, rxchildren, OID_AUTO,
3522 sysctl_queue_names[q], CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
3523 sysctl_queue_descrs[q]);
3524 qchildren = SYSCTL_CHILDREN(tree);
3526 /* hw.mvneta.mvneta[unit].rx.[queue].threshold_timer_us */
3527 SYSCTL_ADD_PROC(ctx, qchildren, OID_AUTO, "threshold_timer_us",
3528 CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, rxarg, 0,
3529 sysctl_set_queue_rxthtime, "I",
3530 "interrupt coalescing threshold timer [us]");
3538 mvneta_read_mib(struct mvneta_softc *sc, int index)
3540 struct mvneta_mib_def *mib;
3543 mib = &mvneta_mib_list[index];
3544 val = MVNETA_READ_MIB(sc, mib->regnum);
3546 val |= (uint64_t)MVNETA_READ_MIB(sc, mib->regnum + 4) << 32;
3551 mvneta_clear_mib(struct mvneta_softc *sc)
3557 for (i = 0; i < nitems(mvneta_mib_list); i++) {
3558 (void)mvneta_read_mib(sc, i);
3559 sc->sysctl_mib[i].counter = 0;
3561 MVNETA_READ(sc, MVNETA_PDFC);
3562 sc->counter_pdfc = 0;
3563 MVNETA_READ(sc, MVNETA_POFC);
3564 sc->counter_pofc = 0;
3565 sc->counter_watchdog = 0;
3569 mvneta_update_mib(struct mvneta_softc *sc)
3571 struct mvneta_tx_ring *tx;
3576 for (i = 0; i < nitems(mvneta_mib_list); i++) {
3578 val = mvneta_read_mib(sc, i);
3582 sc->sysctl_mib[i].counter += val;
3583 switch (mvneta_mib_list[i].regnum) {
3584 case MVNETA_MIB_RX_GOOD_OCT:
3585 if_inc_counter(sc->ifp, IFCOUNTER_IBYTES, val);
3587 case MVNETA_MIB_RX_BAD_FRAME:
3588 if_inc_counter(sc->ifp, IFCOUNTER_IERRORS, val);
3590 case MVNETA_MIB_RX_GOOD_FRAME:
3591 if_inc_counter(sc->ifp, IFCOUNTER_IPACKETS, val);
3593 case MVNETA_MIB_RX_MCAST_FRAME:
3594 if_inc_counter(sc->ifp, IFCOUNTER_IMCASTS, val);
3596 case MVNETA_MIB_TX_GOOD_OCT:
3597 if_inc_counter(sc->ifp, IFCOUNTER_OBYTES, val);
3599 case MVNETA_MIB_TX_GOOD_FRAME:
3600 if_inc_counter(sc->ifp, IFCOUNTER_OPACKETS, val);
3602 case MVNETA_MIB_TX_MCAST_FRAME:
3603 if_inc_counter(sc->ifp, IFCOUNTER_OMCASTS, val);
3605 case MVNETA_MIB_MAC_COL:
3606 if_inc_counter(sc->ifp, IFCOUNTER_COLLISIONS, val);
3608 case MVNETA_MIB_TX_MAC_TRNS_ERR:
3609 case MVNETA_MIB_TX_EXCES_COL:
3610 case MVNETA_MIB_MAC_LATE_COL:
3611 if_inc_counter(sc->ifp, IFCOUNTER_OERRORS, val);
3616 reg = MVNETA_READ(sc, MVNETA_PDFC);
3617 sc->counter_pdfc += reg;
3618 if_inc_counter(sc->ifp, IFCOUNTER_IQDROPS, reg);
3619 reg = MVNETA_READ(sc, MVNETA_POFC);
3620 sc->counter_pofc += reg;
3621 if_inc_counter(sc->ifp, IFCOUNTER_IQDROPS, reg);
3624 if (sc->counter_watchdog_mib > 0) {
3625 if_inc_counter(sc->ifp, IFCOUNTER_OERRORS, sc->counter_watchdog_mib);
3626 sc->counter_watchdog_mib = 0;
3630 * We do not take queue locks to not disrupt TX path.
3631 * We may only miss one drv error which will be fixed at
3632 * next mib update. We may also clear counter when TX path
3633 * is incrementing it but we only do it if counter was not zero
3634 * thus we may only loose one error.
3636 for (i = 0; i < MVNETA_TX_QNUM_MAX; i++) {
3637 tx = MVNETA_TX_RING(sc, i);
3639 if (tx->drv_error > 0) {
3640 if_inc_counter(sc->ifp, IFCOUNTER_OERRORS, tx->drv_error);