/*- * SPDX-License-Identifier: BSD-4-Clause * * Copyright (c) 2004 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #define VGE_JUMBO_MTU 9000 #define VGE_TX_DESC_CNT 256 #define VGE_RX_DESC_CNT 252 /* Must be a multiple of 4!! */ #define VGE_TX_RING_ALIGN 64 #define VGE_RX_RING_ALIGN 64 #define VGE_MAXTXSEGS 6 #define VGE_RX_BUF_ALIGN sizeof(uint64_t) /* * VIA Velocity allows 64bit DMA addressing but high 16bits * of the DMA address should be the same for Tx/Rx buffers. * Because this condition can't be guaranteed vge(4) limit * DMA address space to 48bits. */ #if (BUS_SPACE_MAXADDR < 0xFFFFFFFFFF) #define VGE_BUF_DMA_MAXADDR BUS_SPACE_MAXADDR #else #define VGE_BUF_DMA_MAXADDR 0xFFFFFFFFFFFF #endif #define VGE_RX_LIST_SZ (VGE_RX_DESC_CNT * sizeof(struct vge_rx_desc)) #define VGE_TX_LIST_SZ (VGE_TX_DESC_CNT * sizeof(struct vge_tx_desc)) #define VGE_TX_DESC_INC(x) ((x) = ((x) + 1) % VGE_TX_DESC_CNT) #define VGE_TX_DESC_DEC(x) \ ((x) = (((x) + VGE_TX_DESC_CNT - 1) % VGE_TX_DESC_CNT)) #define VGE_RX_DESC_INC(x) ((x) = ((x) + 1) % VGE_RX_DESC_CNT) #define VGE_ADDR_LO(y) ((uint64_t) (y) & 0xFFFFFFFF) #define VGE_ADDR_HI(y) ((uint64_t) (y) >> 32) #define VGE_BUFLEN(y) ((y) & 0x3FFF) #define VGE_RXBYTES(x) (((x) & VGE_RDSTS_BUFSIZ) >> 16) #define VGE_MIN_FRAMELEN 60 #define VGE_INT_HOLDOFF_TICK 20 #define VGE_INT_HOLDOFF_USEC(x) ((x) / VGE_INT_HOLDOFF_TICK) #define VGE_INT_HOLDOFF_MIN 0 #define VGE_INT_HOLDOFF_MAX (255 * VGE_INT_HOLDOFF_TICK) #define VGE_INT_HOLDOFF_DEFAULT 150 #define VGE_RX_COAL_PKT_MIN 1 #define VGE_RX_COAL_PKT_MAX VGE_RX_DESC_CNT #define VGE_RX_COAL_PKT_DEFAULT 64 #define VGE_TX_COAL_PKT_MIN 1 #define VGE_TX_COAL_PKT_MAX VGE_TX_DESC_CNT #define VGE_TX_COAL_PKT_DEFAULT 128 struct vge_type { uint16_t vge_vid; uint16_t vge_did; char *vge_name; }; struct vge_txdesc { struct mbuf *tx_m; bus_dmamap_t tx_dmamap; struct vge_tx_desc *tx_desc; struct vge_txdesc *txd_prev; }; struct vge_rxdesc { struct mbuf *rx_m; bus_dmamap_t rx_dmamap; struct vge_rx_desc *rx_desc; struct vge_rxdesc *rxd_prev; }; struct vge_chain_data{ bus_dma_tag_t vge_ring_tag; bus_dma_tag_t vge_buffer_tag; bus_dma_tag_t vge_tx_tag; struct vge_txdesc vge_txdesc[VGE_TX_DESC_CNT]; bus_dma_tag_t vge_rx_tag; struct vge_rxdesc vge_rxdesc[VGE_RX_DESC_CNT]; bus_dma_tag_t vge_tx_ring_tag; bus_dmamap_t vge_tx_ring_map; bus_dma_tag_t vge_rx_ring_tag; bus_dmamap_t vge_rx_ring_map; bus_dmamap_t vge_rx_sparemap; int vge_tx_prodidx; int vge_tx_considx; int vge_tx_cnt; int vge_rx_prodidx; int vge_rx_commit; struct mbuf *vge_head; struct mbuf *vge_tail; }; #define VGE_CHAIN_RESET(_sc) \ do { \ if ((_sc)->vge_cdata.vge_head != NULL) { \ m_freem((_sc)->vge_cdata.vge_head); \ (_sc)->vge_cdata.vge_head = NULL; \ (_sc)->vge_cdata.vge_tail = NULL; \ } \ } while (0); struct vge_ring_data { struct vge_tx_desc *vge_tx_ring; bus_addr_t vge_tx_ring_paddr; struct vge_rx_desc *vge_rx_ring; bus_addr_t vge_rx_ring_paddr; }; struct vge_hw_stats { uint32_t rx_frames; uint32_t rx_good_frames; uint32_t rx_fifo_oflows; uint32_t rx_runts; uint32_t rx_runts_errs; uint32_t rx_pkts_64; uint32_t rx_pkts_65_127; uint32_t rx_pkts_128_255; uint32_t rx_pkts_256_511; uint32_t rx_pkts_512_1023; uint32_t rx_pkts_1024_1518; uint32_t rx_pkts_1519_max; uint32_t rx_pkts_1519_max_errs; uint32_t rx_jumbos; uint32_t rx_crcerrs; uint32_t rx_pause_frames; uint32_t rx_alignerrs; uint32_t rx_nobufs; uint32_t rx_symerrs; uint32_t rx_lenerrs; uint32_t tx_good_frames; uint32_t tx_pkts_64; uint32_t tx_pkts_65_127; uint32_t tx_pkts_128_255; uint32_t tx_pkts_256_511; uint32_t tx_pkts_512_1023; uint32_t tx_pkts_1024_1518; uint32_t tx_jumbos; uint32_t tx_colls; uint32_t tx_pause; uint32_t tx_sqeerrs; uint32_t tx_latecolls; }; struct vge_softc { struct ifnet *vge_ifp; /* interface info */ device_t vge_dev; struct resource *vge_res; struct resource *vge_irq; void *vge_intrhand; device_t vge_miibus; int vge_if_flags; int vge_phyaddr; int vge_flags; #define VGE_FLAG_PCIE 0x0001 #define VGE_FLAG_MSI 0x0002 #define VGE_FLAG_PMCAP 0x0004 #define VGE_FLAG_JUMBO 0x0008 #define VGE_FLAG_SUSPENDED 0x4000 #define VGE_FLAG_LINK 0x8000 int vge_expcap; int vge_pmcap; int vge_camidx; int vge_int_holdoff; int vge_rx_coal_pkt; int vge_tx_coal_pkt; struct mtx vge_mtx; struct callout vge_watchdog; int vge_timer; struct vge_chain_data vge_cdata; struct vge_ring_data vge_rdata; struct vge_hw_stats vge_stats; }; #define VGE_LOCK(_sc) mtx_lock(&(_sc)->vge_mtx) #define VGE_UNLOCK(_sc) mtx_unlock(&(_sc)->vge_mtx) #define VGE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->vge_mtx, MA_OWNED) /* * register space access macros */ #define CSR_WRITE_STREAM_4(sc, reg, val) \ bus_write_stream_4(sc->vge_res, reg, val) #define CSR_WRITE_4(sc, reg, val) \ bus_write_4(sc->vge_res, reg, val) #define CSR_WRITE_2(sc, reg, val) \ bus_write_2(sc->vge_res, reg, val) #define CSR_WRITE_1(sc, reg, val) \ bus_write_1(sc->vge_res, reg, val) #define CSR_READ_4(sc, reg) \ bus_read_4(sc->vge_res, reg) #define CSR_READ_2(sc, reg) \ bus_read_2(sc->vge_res, reg) #define CSR_READ_1(sc, reg) \ bus_read_1(sc->vge_res, reg) #define CSR_SETBIT_1(sc, reg, x) \ CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) | (x)) #define CSR_SETBIT_2(sc, reg, x) \ CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) | (x)) #define CSR_SETBIT_4(sc, reg, x) \ CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x)) #define CSR_CLRBIT_1(sc, reg, x) \ CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) & ~(x)) #define CSR_CLRBIT_2(sc, reg, x) \ CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) & ~(x)) #define CSR_CLRBIT_4(sc, reg, x) \ CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x)) #define VGE_RXCHUNK 4 #define VGE_TIMEOUT 10000