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
49 * Tx/Rx descriptor queue base should be 16bytes aligned and
50 * should not cross 4G bytes boundary on the 64bits address
53 #define JME_TX_RING_ALIGN 16
54 #define JME_RX_RING_ALIGN 16
55 #define JME_TSO_MAXSEGSIZE 4096
56 #define JME_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header))
57 #define JME_MAXTXSEGS 32
58 #define JME_RX_BUF_ALIGN sizeof(uint64_t)
59 #define JME_SSB_ALIGN 16
61 #define JME_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF)
62 #define JME_ADDR_HI(x) ((uint64_t) (x) >> 32)
64 #define JME_MSI_MESSAGES 8
65 #define JME_MSIX_MESSAGES 8
67 /* Water mark to kick reclaiming Tx buffers. */
68 #define JME_TX_DESC_HIWAT(sc) \
69 ((sc)->jme_tx_desc_cnt - (((sc)->jme_tx_desc_cnt * 3) / 10))
72 * JMC250 can send 9K jumbo frame on Tx path and can receive
75 #define JME_JUMBO_FRAMELEN 9216
76 #define JME_JUMBO_MTU \
77 (JME_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - \
78 ETHER_HDR_LEN - ETHER_CRC_LEN)
80 (ETHER_MAX_LEN + sizeof(struct ether_vlan_header) - \
81 ETHER_HDR_LEN - ETHER_CRC_LEN)
83 * JMC250 can't handle Tx checksum offload/TSO if frame length
84 * is larger than its FIFO size(2K). It's also good idea to not
85 * use jumbo frame if hardware is running at half-duplex media.
86 * Because the jumbo frame may not fit into the Tx FIFO,
87 * collisions make hardware fetch frame from host memory with
88 * DMA again which in turn slows down Tx performance
91 #define JME_TX_FIFO_SIZE 2000
93 * JMC250 has just 4K Rx FIFO. To support jumbo frame that is
94 * larger than 4K bytes in length, Rx FIFO threshold should be
95 * adjusted to minimize Rx FIFO overrun.
97 #define JME_RX_FIFO_SIZE 4000
99 #define JME_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
103 bus_dmamap_t tx_dmamap;
105 struct jme_desc *tx_desc;
110 bus_dmamap_t rx_dmamap;
111 struct jme_desc *rx_desc;
114 struct jme_chain_data {
118 bus_dma_tag_t jme_ring_tag; /* parent ring tag */
119 bus_dma_tag_t jme_buffer_tag; /* parent mbuf/ssb tag */
122 * Shadow status block
124 struct jme_ssb *jme_ssb_block;
125 bus_addr_t jme_ssb_block_paddr;
126 bus_dma_tag_t jme_ssb_tag;
127 bus_dmamap_t jme_ssb_map;
132 bus_dma_tag_t jme_tx_tag; /* TX mbuf tag */
133 struct jme_txdesc *jme_txdesc;
135 struct jme_desc *jme_tx_ring;
136 bus_addr_t jme_tx_ring_paddr;
137 bus_dma_tag_t jme_tx_ring_tag;
138 bus_dmamap_t jme_tx_ring_map;
147 bus_dma_tag_t jme_rx_tag; /* RX mbuf tag */
148 bus_dmamap_t jme_rx_sparemap;
149 struct jme_rxdesc *jme_rxdesc;
151 struct jme_desc *jme_rx_ring;
152 bus_addr_t jme_rx_ring_paddr;
153 bus_dma_tag_t jme_rx_ring_tag;
154 bus_dmamap_t jme_rx_ring_map;
159 struct mbuf *jme_rxhead;
160 struct mbuf *jme_rxtail;
163 #define JME_TX_RING_SIZE(sc) \
164 (sizeof(struct jme_desc) * (sc)->jme_tx_desc_cnt)
165 #define JME_RX_RING_SIZE(sc) \
166 (sizeof(struct jme_desc) * (sc)->jme_rx_desc_cnt)
167 #define JME_SSB_SIZE sizeof(struct jme_ssb)
169 struct jme_dmamap_ctx {
171 bus_dma_segment_t *segs;
175 * Software state per device.
178 struct arpcom arpcom;
182 struct resource *jme_mem_res;
183 bus_space_tag_t jme_mem_bt;
184 bus_space_handle_t jme_mem_bh;
187 struct resource *jme_irq_res;
188 void *jme_irq_handle;
192 bus_addr_t jme_lowaddr;
195 uint32_t jme_clksrc_1000;
196 uint32_t jme_tx_dma_size;
197 uint32_t jme_rx_dma_size;
200 #define JME_CAP_FPGA 0x0001
201 #define JME_CAP_PCIE 0x0002
202 #define JME_CAP_PMCAP 0x0004
203 #define JME_CAP_FASTETH 0x0008
204 #define JME_CAP_JUMBO 0x0010
206 uint32_t jme_workaround;
207 #define JME_WA_EXTFIFO 0x0001
208 #define JME_WA_HDX 0x0002
211 #define JME_FLAG_MSI 0x0001
212 #define JME_FLAG_MSIX 0x0002
213 #define JME_FLAG_DETACH 0x0004
214 #define JME_FLAG_LINK 0x0008
216 struct callout jme_tick_ch;
217 struct jme_chain_data jme_cdata;
224 struct sysctl_ctx_list jme_sysctl_ctx;
225 struct sysctl_oid *jme_sysctl_tree;
238 /* Register access macros. */
239 #define CSR_WRITE_4(_sc, reg, val) \
240 bus_space_write_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg), (val))
241 #define CSR_READ_4(_sc, reg) \
242 bus_space_read_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg))
246 #define JME_RXCHAIN_RESET(_sc) \
248 (_sc)->jme_cdata.jme_rxhead = NULL; \
249 (_sc)->jme_cdata.jme_rxtail = NULL; \
250 (_sc)->jme_cdata.jme_rxlen = 0; \
253 #define JME_TX_TIMEOUT 5
254 #define JME_TIMEOUT 1000
255 #define JME_PHY_TIMEOUT 1000
256 #define JME_EEPROM_TIMEOUT 1000
258 #define JME_TXD_RSVD 1