Date: Fri, 15 Jul 2016 08:06:49 +0000 (UTC) From: Sepherosa Ziehau <sephe@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r302887 - in head/sys/dev/hyperv: include netvsc vmbus Message-ID: <201607150806.u6F86nOb035599@repo.freebsd.org>
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Author: sephe Date: Fri Jul 15 08:06:48 2016 New Revision: 302887 URL: https://svnweb.freebsd.org/changeset/base/302887 Log: hyperv/hn: Busdma-fy rxbuf and chimney sending buffer Nuke unused channel GPADL API. MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D7211 Modified: head/sys/dev/hyperv/include/hyperv.h head/sys/dev/hyperv/netvsc/hv_net_vsc.c head/sys/dev/hyperv/netvsc/hv_net_vsc.h head/sys/dev/hyperv/vmbus/hv_channel.c Modified: head/sys/dev/hyperv/include/hyperv.h ============================================================================== --- head/sys/dev/hyperv/include/hyperv.h Fri Jul 15 07:53:45 2016 (r302886) +++ head/sys/dev/hyperv/include/hyperv.h Fri Jul 15 08:06:48 2016 (r302887) @@ -287,14 +287,6 @@ int hv_vmbus_channel_open( void hv_vmbus_channel_close(hv_vmbus_channel *channel); -int hv_vmbus_channel_establish_gpadl( - hv_vmbus_channel* channel, - /* must be phys and virt contiguous */ - void* contig_buffer, - /* page-size multiple */ - uint32_t size, - uint32_t* gpadl_handle); - int hv_vmbus_channel_teardown_gpdal( hv_vmbus_channel* channel, uint32_t gpadl_handle); Modified: head/sys/dev/hyperv/netvsc/hv_net_vsc.c ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_net_vsc.c Fri Jul 15 07:53:45 2016 (r302886) +++ head/sys/dev/hyperv/netvsc/hv_net_vsc.c Fri Jul 15 08:06:48 2016 (r302887) @@ -152,19 +152,27 @@ hv_nv_init_rx_buffer_with_net_vsp(struct return (ENODEV); } - net_dev->rx_buf = contigmalloc(net_dev->rx_buf_size, M_NETVSC, - M_ZERO, 0UL, BUS_SPACE_MAXADDR, PAGE_SIZE, 0); + net_dev->rx_buf = hyperv_dmamem_alloc(bus_get_dma_tag(sc->hn_dev), + PAGE_SIZE, 0, net_dev->rx_buf_size, &net_dev->rxbuf_dma, + BUS_DMA_WAITOK | BUS_DMA_ZERO); + if (net_dev->rx_buf == NULL) { + device_printf(sc->hn_dev, "allocate rxbuf failed\n"); + return ENOMEM; + } /* - * Establish the GPADL handle for this buffer on this channel. - * Note: This call uses the vmbus connection rather than the - * channel to establish the gpadl handle. - * GPADL: Guest physical address descriptor list. - */ - ret = hv_vmbus_channel_establish_gpadl( - sc->hn_prichan, net_dev->rx_buf, - net_dev->rx_buf_size, &net_dev->rx_buf_gpadl_handle); + * Connect the RXBUF GPADL to the primary channel. + * + * NOTE: + * Only primary channel has RXBUF connected to it. Sub-channels + * just share this RXBUF. + */ + ret = vmbus_chan_gpadl_connect(sc->hn_prichan, + net_dev->rxbuf_dma.hv_paddr, net_dev->rx_buf_size, + &net_dev->rx_buf_gpadl_handle); if (ret != 0) { + device_printf(sc->hn_dev, "rxbuf gpadl connect failed: %d\n", + ret); goto cleanup; } @@ -243,22 +251,27 @@ hv_nv_init_send_buffer_with_net_vsp(stru return (ENODEV); } - net_dev->send_buf = contigmalloc(net_dev->send_buf_size, M_NETVSC, - M_ZERO, 0UL, BUS_SPACE_MAXADDR, PAGE_SIZE, 0); + net_dev->send_buf = hyperv_dmamem_alloc(bus_get_dma_tag(sc->hn_dev), + PAGE_SIZE, 0, net_dev->send_buf_size, &net_dev->txbuf_dma, + BUS_DMA_WAITOK | BUS_DMA_ZERO); if (net_dev->send_buf == NULL) { - ret = ENOMEM; - goto cleanup; + device_printf(sc->hn_dev, "allocate chimney txbuf failed\n"); + return ENOMEM; } /* - * Establish the gpadl handle for this buffer on this channel. - * Note: This call uses the vmbus connection rather than the - * channel to establish the gpadl handle. + * Connect chimney sending buffer GPADL to the primary channel. + * + * NOTE: + * Only primary channel has chimney sending buffer connected to it. + * Sub-channels just share this chimney sending buffer. */ - ret = hv_vmbus_channel_establish_gpadl(sc->hn_prichan, - net_dev->send_buf, net_dev->send_buf_size, + ret = vmbus_chan_gpadl_connect(sc->hn_prichan, + net_dev->txbuf_dma.hv_paddr, net_dev->send_buf_size, &net_dev->send_buf_gpadl_handle); if (ret != 0) { + device_printf(sc->hn_dev, "chimney sending buffer gpadl " + "connect failed: %d\n", ret); goto cleanup; } @@ -364,7 +377,7 @@ hv_nv_destroy_rx_buffer(netvsc_dev *net_ if (net_dev->rx_buf) { /* Free up the receive buffer */ - contigfree(net_dev->rx_buf, net_dev->rx_buf_size, M_NETVSC); + hyperv_dmamem_free(&net_dev->rxbuf_dma, net_dev->rx_buf); net_dev->rx_buf = NULL; } @@ -432,7 +445,7 @@ hv_nv_destroy_send_buffer(netvsc_dev *ne if (net_dev->send_buf) { /* Free up the receive buffer */ - contigfree(net_dev->send_buf, net_dev->send_buf_size, M_NETVSC); + hyperv_dmamem_free(&net_dev->txbuf_dma, net_dev->send_buf); net_dev->send_buf = NULL; } Modified: head/sys/dev/hyperv/netvsc/hv_net_vsc.h ============================================================================== --- head/sys/dev/hyperv/netvsc/hv_net_vsc.h Fri Jul 15 07:53:45 2016 (r302886) +++ head/sys/dev/hyperv/netvsc/hv_net_vsc.h Fri Jul 15 08:06:48 2016 (r302887) @@ -57,6 +57,7 @@ #include <net/if_media.h> #include <dev/hyperv/include/hyperv.h> +#include <dev/hyperv/include/hyperv_busdma.h> #include <dev/hyperv/include/vmbus.h> #define HN_USE_TXDESC_BUFRING @@ -1075,6 +1076,8 @@ typedef struct netvsc_dev_ { uint32_t num_channel; + struct hyperv_dma rxbuf_dma; + struct hyperv_dma txbuf_dma; uint32_t vrss_send_table[VRSS_SEND_TABLE_SIZE]; } netvsc_dev; Modified: head/sys/dev/hyperv/vmbus/hv_channel.c ============================================================================== --- head/sys/dev/hyperv/vmbus/hv_channel.c Fri Jul 15 07:53:45 2016 (r302886) +++ head/sys/dev/hyperv/vmbus/hv_channel.c Fri Jul 15 08:06:48 2016 (r302887) @@ -337,17 +337,6 @@ failed: return ret; } -/** - * @brief Establish a GPADL for the specified buffer - */ -int -hv_vmbus_channel_establish_gpadl(struct hv_vmbus_channel *channel, - void *contig_buffer, uint32_t size, uint32_t *gpadl) -{ - return vmbus_chan_gpadl_connect(channel, - hv_get_phys_addr(contig_buffer), size, gpadl); -} - int vmbus_chan_gpadl_connect(struct hv_vmbus_channel *chan, bus_addr_t paddr, int size, uint32_t *gpadl0)
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