2 * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
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 AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/jme/if_jmevar.h,v 1.1 2008/05/27 01:42:01 yongari Exp $
28 * $DragonFly: src/sys/dev/netif/jme/if_jmevar.h,v 1.8 2008/11/26 11:55:18 sephe Exp $
34 #include <sys/queue.h>
35 #include <sys/callout.h>
36 #include <sys/taskqueue.h>
39 * JMC250 supports upto JME_NDESC_MAX descriptors and the number of
40 * descriptors should be multiple of JME_NDESC_ALIGN.
42 #define JME_TX_DESC_CNT_DEF 384
43 #define JME_RX_DESC_CNT_DEF 256
45 #define JME_NDESC_ALIGN 16
46 #define JME_NDESC_MAX 1024
48 #define JME_NRXRING_MAX 4
51 * Tx/Rx descriptor queue base should be 16bytes aligned and
52 * should not cross 4G bytes boundary on the 64bits address
55 #define JME_TX_RING_ALIGN 16
56 #define JME_RX_RING_ALIGN 16
57 #define JME_TSO_MAXSEGSIZE 4096
58 #define JME_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header))
59 #define JME_MAXTXSEGS 32
60 #define JME_RX_BUF_ALIGN sizeof(uint64_t)
61 #define JME_SSB_ALIGN 16
63 #define JME_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF)
64 #define JME_ADDR_HI(x) ((uint64_t) (x) >> 32)
66 #define JME_MSI_MESSAGES 8
67 #define JME_MSIX_MESSAGES 8
69 /* Water mark to kick reclaiming Tx buffers. */
70 #define JME_TX_DESC_HIWAT(sc) \
71 ((sc)->jme_tx_desc_cnt - (((sc)->jme_tx_desc_cnt * 3) / 10))
74 * JMC250 can send 9K jumbo frame on Tx path and can receive
77 #define JME_JUMBO_FRAMELEN 9216
78 #define JME_JUMBO_MTU \
79 (JME_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - \
80 ETHER_HDR_LEN - ETHER_CRC_LEN)
82 (ETHER_MAX_LEN + sizeof(struct ether_vlan_header) - \
83 ETHER_HDR_LEN - ETHER_CRC_LEN)
85 * JMC250 can't handle Tx checksum offload/TSO if frame length
86 * is larger than its FIFO size(2K). It's also good idea to not
87 * use jumbo frame if hardware is running at half-duplex media.
88 * Because the jumbo frame may not fit into the Tx FIFO,
89 * collisions make hardware fetch frame from host memory with
90 * DMA again which in turn slows down Tx performance
93 #define JME_TX_FIFO_SIZE 2000
95 * JMC250 has just 4K Rx FIFO. To support jumbo frame that is
96 * larger than 4K bytes in length, Rx FIFO threshold should be
97 * adjusted to minimize Rx FIFO overrun.
99 #define JME_RX_FIFO_SIZE 4000
101 #define JME_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
105 bus_dmamap_t tx_dmamap;
107 struct jme_desc *tx_desc;
112 bus_dmamap_t rx_dmamap;
113 struct jme_desc *rx_desc;
120 bus_dma_tag_t jme_rx_tag; /* RX mbuf tag */
121 bus_dmamap_t jme_rx_sparemap;
122 struct jme_rxdesc *jme_rxdesc;
124 struct jme_desc *jme_rx_ring;
125 bus_addr_t jme_rx_ring_paddr;
126 bus_dma_tag_t jme_rx_ring_tag;
127 bus_dmamap_t jme_rx_ring_map;
132 struct mbuf *jme_rxhead;
133 struct mbuf *jme_rxtail;
136 struct jme_chain_data {
140 bus_dma_tag_t jme_ring_tag; /* parent ring tag */
141 bus_dma_tag_t jme_buffer_tag; /* parent mbuf/ssb tag */
144 * Shadow status block
146 struct jme_ssb *jme_ssb_block;
147 bus_addr_t jme_ssb_block_paddr;
148 bus_dma_tag_t jme_ssb_tag;
149 bus_dmamap_t jme_ssb_map;
154 bus_dma_tag_t jme_tx_tag; /* TX mbuf tag */
155 struct jme_txdesc *jme_txdesc;
157 struct jme_desc *jme_tx_ring;
158 bus_addr_t jme_tx_ring_paddr;
159 bus_dma_tag_t jme_tx_ring_tag;
160 bus_dmamap_t jme_tx_ring_map;
166 struct jme_rxdata jme_rx_data[JME_NRXRING_MAX];
169 #define JME_TX_RING_SIZE(sc) \
170 (sizeof(struct jme_desc) * (sc)->jme_tx_desc_cnt)
171 #define JME_RX_RING_SIZE(sc) \
172 (sizeof(struct jme_desc) * (sc)->jme_rx_desc_cnt)
173 #define JME_SSB_SIZE sizeof(struct jme_ssb)
175 struct jme_dmamap_ctx {
177 bus_dma_segment_t *segs;
181 * Software state per device.
184 struct arpcom arpcom;
188 struct resource *jme_mem_res;
189 bus_space_tag_t jme_mem_bt;
190 bus_space_handle_t jme_mem_bh;
193 struct resource *jme_irq_res;
194 void *jme_irq_handle;
198 bus_addr_t jme_lowaddr;
201 uint32_t jme_clksrc_1000;
202 uint32_t jme_tx_dma_size;
203 uint32_t jme_rx_dma_size;
206 #define JME_CAP_FPGA 0x0001
207 #define JME_CAP_PCIE 0x0002
208 #define JME_CAP_PMCAP 0x0004
209 #define JME_CAP_FASTETH 0x0008
210 #define JME_CAP_JUMBO 0x0010
211 #define JME_CAP_RSS 0x0020
213 uint32_t jme_workaround;
214 #define JME_WA_EXTFIFO 0x0001
215 #define JME_WA_HDX 0x0002
218 #define JME_FLAG_MSI 0x0001
219 #define JME_FLAG_MSIX 0x0002
220 #define JME_FLAG_DETACH 0x0004
221 #define JME_FLAG_LINK 0x0008
222 #define JME_FLAG_RSS 0x0010
224 struct callout jme_tick_ch;
225 struct jme_chain_data jme_cdata;
229 int jme_rx_ring_inuse;
233 struct sysctl_ctx_list jme_sysctl_ctx;
234 struct sysctl_oid *jme_sysctl_tree;
248 /* Register access macros. */
249 #define CSR_WRITE_4(_sc, reg, val) \
250 bus_space_write_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg), (val))
251 #define CSR_READ_4(_sc, reg) \
252 bus_space_read_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg))
256 #define JME_RXCHAIN_RESET(sc, ring) \
258 (sc)->jme_cdata.jme_rx_data[(ring)].jme_rxhead = NULL; \
259 (sc)->jme_cdata.jme_rx_data[(ring)].jme_rxtail = NULL; \
260 (sc)->jme_cdata.jme_rx_data[(ring)].jme_rxlen = 0; \
263 #define JME_TX_TIMEOUT 5
264 #define JME_TIMEOUT 1000
265 #define JME_PHY_TIMEOUT 1000
266 #define JME_EEPROM_TIMEOUT 1000
268 #define JME_TXD_RSVD 1