1 /******************************************************************************
3 Copyright (c) 2001-2010, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ******************************************************************************/
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #if __FreeBSD_version >= 800000
43 #include <sys/buf_ring.h>
46 #include <sys/protosw.h>
47 #include <sys/socket.h>
48 #include <sys/malloc.h>
49 #include <sys/kernel.h>
50 #include <sys/module.h>
51 #include <sys/sockio.h>
54 #include <net/if_arp.h>
56 #include <net/ethernet.h>
57 #include <net/if_dl.h>
58 #include <net/if_media.h>
61 #include <net/if_types.h>
62 #include <net/if_vlan_var.h>
64 #include <netinet/in_systm.h>
65 #include <netinet/in.h>
66 #include <netinet/if_ether.h>
67 #include <netinet/ip.h>
68 #include <netinet/ip6.h>
69 #include <netinet/tcp.h>
70 #include <netinet/tcp_lro.h>
71 #include <netinet/udp.h>
73 #include <machine/in_cksum.h>
76 #include <machine/bus.h>
78 #include <machine/resource.h>
81 #include <machine/clock.h>
82 #include <dev/pci/pcivar.h>
83 #include <dev/pci/pcireg.h>
85 #include <sys/sysctl.h>
86 #include <sys/endian.h>
87 #include <sys/taskqueue.h>
90 #include <machine/smp.h>
93 #include <sys/ieee1588.h>
96 #include "ixgbe_api.h"
101 * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
102 * number of transmit descriptors allocated by the driver. Increasing this
103 * value allows the driver to queue more transmits. Each descriptor is 16
104 * bytes. Performance tests have show the 2K value to be optimal for top
107 #define DEFAULT_TXD 1024
108 #define PERFORM_TXD 2048
113 * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
114 * number of receive descriptors allocated for each RX queue. Increasing this
115 * value allows the driver to buffer more incoming packets. Each descriptor
116 * is 16 bytes. A receive buffer is also allocated for each descriptor.
118 * Note: with 8 rings and a dual port card, it is possible to bump up
119 * against the system mbuf pool limit, you can tune nmbclusters
120 * to adjust for this.
122 #define DEFAULT_RXD 1024
123 #define PERFORM_RXD 2048
127 /* Alignment for rings */
128 #define DBA_ALIGN 128
131 * This parameter controls the maximum no of times the driver will loop in
132 * the isr. Minimum Value = 1
137 * This is the max watchdog interval, ie. the time that can
138 * pass between any two TX clean operations, such only happening
139 * when the TX hardware is functioning.
141 #define IXGBE_WATCHDOG (10 * hz)
144 * This parameters control when the driver calls the routine to reclaim
145 * transmit descriptors.
147 #define IXGBE_TX_CLEANUP_THRESHOLD (adapter->num_tx_desc / 8)
148 #define IXGBE_TX_OP_THRESHOLD (adapter->num_tx_desc / 32)
150 #define IXGBE_MAX_FRAME_SIZE 0x3F00
152 /* Flow control constants */
153 #define IXGBE_FC_PAUSE 0xFFFF
154 #define IXGBE_FC_HI 0x20000
155 #define IXGBE_FC_LO 0x10000
157 /* Keep older OS drivers building... */
158 #if !defined(SYSCTL_ADD_UQUAD)
159 #define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
162 /* Defines for printing debug information */
164 #define DEBUG_IOCTL 0
167 #define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n")
168 #define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A)
169 #define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B)
170 #define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n")
171 #define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A)
172 #define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B)
173 #define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n")
174 #define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A)
175 #define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B)
177 #define MAX_NUM_MULTICAST_ADDRESSES 128
178 #define IXGBE_82598_SCATTER 100
179 #define IXGBE_82599_SCATTER 32
180 #define MSIX_82598_BAR 3
181 #define MSIX_82599_BAR 4
182 #define IXGBE_TSO_SIZE 65535
183 #define IXGBE_TX_BUFFER_SIZE ((u32) 1514)
184 #define IXGBE_RX_HDR 128
185 #define IXGBE_VFTA_SIZE 128
186 #define IXGBE_BR_SIZE 4096
187 #define IXGBE_QUEUE_IDLE 0
188 #define IXGBE_QUEUE_WORKING 1
189 #define IXGBE_QUEUE_HUNG 2
191 /* Offload bits in mbuf flag */
192 #if __FreeBSD_version >= 800000
193 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
195 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP)
198 /* For 6.X code compatibility */
199 #if !defined(ETHER_BPF_MTAP)
200 #define ETHER_BPF_MTAP BPF_MTAP
203 #if __FreeBSD_version < 700000
209 * Interrupt Moderation parameters
211 #define IXGBE_LOW_LATENCY 128
212 #define IXGBE_AVE_LATENCY 400
213 #define IXGBE_BULK_LATENCY 1200
214 #define IXGBE_LINK_ITR 2000
217 *****************************************************************************
220 * This array contains the list of Subvendor/Subdevice IDs on which the driver
223 *****************************************************************************
225 typedef struct _ixgbe_vendor_info_t {
226 unsigned int vendor_id;
227 unsigned int device_id;
228 unsigned int subvendor_id;
229 unsigned int subdevice_id;
231 } ixgbe_vendor_info_t;
234 struct ixgbe_tx_buf {
240 struct ixgbe_rx_buf {
249 * Bus dma allocation structure used by ixgbe_dma_malloc and ixgbe_dma_free.
251 struct ixgbe_dma_alloc {
252 bus_addr_t dma_paddr;
254 bus_dma_tag_t dma_tag;
255 bus_dmamap_t dma_map;
256 bus_dma_segment_t dma_seg;
262 ** Driver queue struct: this is the interrupt container
263 ** for the associated tx and rx ring.
266 struct adapter *adapter;
267 u32 msix; /* This queue's MSIX vector */
268 u32 eims; /* This queue's EIMS bit */
270 struct resource *res;
274 struct task que_task;
275 struct taskqueue *tq;
280 * The transmit ring, one per queue
283 struct adapter *adapter;
288 union ixgbe_adv_tx_desc *tx_base;
289 struct ixgbe_dma_alloc txdma;
292 struct ixgbe_tx_buf *tx_buffers;
293 volatile u16 tx_avail;
297 #if __FreeBSD_version >= 800000
304 u32 bytes; /* used for AIM */
313 * The Receive ring, one per rx queue
316 struct adapter *adapter;
319 union ixgbe_adv_rx_desc *rx_base;
320 struct ixgbe_dma_alloc rxdma;
329 struct ixgbe_rx_buf *rx_buffers;
333 u32 bytes; /* Used for AIM calc */
338 u64 rx_split_packets;
348 /* Our adapter structure */
353 struct ixgbe_osdep osdep;
356 struct resource *pci_mem;
357 struct resource *msix_mem;
360 * Interrupt resources: this set is
361 * either used for legacy, or for Link
365 struct resource *res;
367 struct ifmedia media;
368 struct callout timer;
374 eventhandler_tag vlan_attach;
375 eventhandler_tag vlan_detach;
381 ** Shadow VFTA table, this is needed because
382 ** the real vlan filter table gets cleared during
383 ** a soft reset and the driver needs to be able
386 u32 shadow_vfta[IXGBE_VFTA_SIZE];
388 /* Info about the interface */
390 u32 fc; /* local flow ctrl setting */
391 int advertise; /* link speeds */
399 /* Mbuf cluster size */
402 /* Support for pluggable optics */
404 struct task link_task; /* Link tasklet */
405 struct task mod_task; /* SFP tasklet */
406 struct task msf_task; /* Multispeed Fiber */
409 struct task fdir_task;
411 struct taskqueue *tq;
415 ** This is the irq holder, it has
416 ** and RX/TX pair or rings associated
419 struct ix_queue *queues;
423 * Allocated at run time, an array of rings.
425 struct tx_ring *tx_rings;
430 * Allocated at run time, an array of rings.
432 struct rx_ring *rx_rings;
435 u32 rx_process_limit;
437 /* Multicast array memory */
440 /* Misc stats maintained by the driver */
441 unsigned long dropped_pkts;
442 unsigned long mbuf_defrag_failed;
443 unsigned long mbuf_header_failed;
444 unsigned long mbuf_packet_failed;
445 unsigned long no_tx_map_avail;
446 unsigned long no_tx_dma_setup;
447 unsigned long watchdog_events;
448 unsigned long tso_tx;
449 unsigned long link_irq;
451 struct ixgbe_hw_stats stats;
454 /* Precision Time Sync (IEEE 1588) defines */
455 #define ETHERTYPE_IEEE1588 0x88F7
456 #define PICOSECS_PER_TICK 20833
457 #define TSYNC_UDP_PORT 319 /* UDP port for the protocol */
458 #define IXGBE_ADVTXD_TSTAMP 0x00080000
461 #define IXGBE_CORE_LOCK_INIT(_sc, _name) \
462 mtx_init(&(_sc)->core_mtx, _name, "IXGBE Core Lock", MTX_DEF)
463 #define IXGBE_CORE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->core_mtx)
464 #define IXGBE_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx)
465 #define IXGBE_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rx_mtx)
466 #define IXGBE_CORE_LOCK(_sc) mtx_lock(&(_sc)->core_mtx)
467 #define IXGBE_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx)
468 #define IXGBE_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->tx_mtx)
469 #define IXGBE_RX_LOCK(_sc) mtx_lock(&(_sc)->rx_mtx)
470 #define IXGBE_CORE_UNLOCK(_sc) mtx_unlock(&(_sc)->core_mtx)
471 #define IXGBE_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx)
472 #define IXGBE_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->rx_mtx)
473 #define IXGBE_CORE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->core_mtx, MA_OWNED)
474 #define IXGBE_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->tx_mtx, MA_OWNED)
478 ixgbe_is_sfp(struct ixgbe_hw *hw)
480 switch (hw->phy.type) {
481 case ixgbe_phy_sfp_avago:
482 case ixgbe_phy_sfp_ftl:
483 case ixgbe_phy_sfp_intel:
484 case ixgbe_phy_sfp_unknown:
485 case ixgbe_phy_sfp_passive_tyco:
486 case ixgbe_phy_sfp_passive_unknown:
493 /* Workaround to make 8.0 buildable */
494 #if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
496 drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
499 if (ALTQ_IS_ENABLED(&ifp->if_snd))
502 return (!buf_ring_empty(br));
507 ** Find the number of unrefreshed RX descriptors
510 ixgbe_rx_unrefreshed(struct rx_ring *rxr)
512 struct adapter *adapter = rxr->adapter;
514 if (rxr->next_to_check > rxr->next_to_refresh)
515 return (rxr->next_to_check - rxr->next_to_refresh - 1);
517 return ((adapter->num_rx_desc + rxr->next_to_check) -
518 rxr->next_to_refresh - 1);
521 #endif /* _IXGBE_H_ */