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A few changes:

Browse Source 
When not defining header split do not allocate mbufs,
  this can be a BIG savings in the mbuf memory pool.

  Also keep seperate dma maps for the header and
  payload pieces when doing header split. The basis
  of this code was a patch done a while ago by
  yongari, thank you :)

  A number of white space changes.

MFC: in a few days
This commit is contained in:
Jack F Vogel 2010-05-19 00:03:48 +00:00
parent a46dd0b9e2
commit 3f13ffab71
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=208282
2 changed files with 238 additions and 178 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

409
sys/dev/ixgbe/ixgbe.c
View File

@ -46,7 +46,7 @@ int ixgbe_display_debug_stats = 0;
/*********************************************************************
* Driver version
*********************************************************************/
char ixgbe_driver_version[] = "2.1.8";
char ixgbe_driver_version[] = "2.2.0";
/*********************************************************************
* PCI Device ID Table
@ -256,11 +256,11 @@ TUNABLE_INT("hw.ixgbe.enable_msix", &ixgbe_enable_msix);
/*
* Header split has seemed to be beneficial in
* all circumstances tested, so its on by default
* most circumstances tested, so its on by default
* however this variable will allow it to be disabled
* for some debug purposes.
*/
static bool ixgbe_header_split = TRUE;
static bool ixgbe_header_split = FALSE;
TUNABLE_INT("hw.ixgbe.hdr_split", &ixgbe_header_split);
/*
@ -406,39 +406,39 @@ ixgbe_attach(device_t dev)
/* Keep track of optics */
pci_device_id = pci_get_device(dev);
switch (pci_device_id) {
case IXGBE_DEV_ID_82598_CX4_DUAL_PORT :
case IXGBE_DEV_ID_82598EB_CX4 :
case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
case IXGBE_DEV_ID_82598EB_CX4:
adapter->optics = IFM_10G_CX4;
break;
case IXGBE_DEV_ID_82598 :
case IXGBE_DEV_ID_82598AF_DUAL_PORT :
case IXGBE_DEV_ID_82598AF_SINGLE_PORT :
case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM :
case IXGBE_DEV_ID_82598EB_SFP_LOM :
case IXGBE_DEV_ID_82598AT :
case IXGBE_DEV_ID_82598:
case IXGBE_DEV_ID_82598AF_DUAL_PORT:
case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
case IXGBE_DEV_ID_82598EB_SFP_LOM:
case IXGBE_DEV_ID_82598AT:
adapter->optics = IFM_10G_SR;
break;
case IXGBE_DEV_ID_82598AT2 :
case IXGBE_DEV_ID_82598AT2:
adapter->optics = IFM_10G_T;
break;
case IXGBE_DEV_ID_82598EB_XF_LR :
case IXGBE_DEV_ID_82598EB_XF_LR:
adapter->optics = IFM_10G_LR;
break;
case IXGBE_DEV_ID_82599_SFP:
adapter->optics = IFM_10G_SR;
ixgbe_num_segs = IXGBE_82599_SCATTER;
break;
case IXGBE_DEV_ID_82598_DA_DUAL_PORT :
adapter->optics = IFM_10G_TWINAX;
break;
case IXGBE_DEV_ID_82599_SFP :
adapter->optics = IFM_10G_SR;
ixgbe_num_segs = IXGBE_82599_SCATTER;
break;
case IXGBE_DEV_ID_82599_KX4 :
case IXGBE_DEV_ID_82599_KX4:
case IXGBE_DEV_ID_82599_KX4_MEZZ:
case IXGBE_DEV_ID_82599_CX4 :
case IXGBE_DEV_ID_82599_CX4:
adapter->optics = IFM_10G_CX4;
ixgbe_num_segs = IXGBE_82599_SCATTER;
break;
case IXGBE_DEV_ID_82599_XAUI_LOM :
case IXGBE_DEV_ID_82599_COMBO_BACKPLANE :
case IXGBE_DEV_ID_82599_XAUI_LOM:
case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
ixgbe_num_segs = IXGBE_82599_SCATTER;
break;
case IXGBE_DEV_ID_82599_T3_LOM:
@ -1134,11 +1134,19 @@ ixgbe_init_locked(struct adapter *adapter)
callout_reset(&adapter->timer, hz, ixgbe_local_timer, adapter);
/* Set up MSI/X routing */
if (ixgbe_enable_msix)
if (ixgbe_enable_msix) {
ixgbe_configure_ivars(adapter);
else { /* Simple settings for Legacy/MSI */
/* Set up auto-mask */
if (hw->mac.type == ixgbe_mac_82598EB)
IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
else {
IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF);
IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF);
}
} else { /* Simple settings for Legacy/MSI */
ixgbe_set_ivar(adapter, 0, 0, 0);
ixgbe_set_ivar(adapter, 0, 0, 1);
IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE);
}
#ifdef IXGBE_FDIR
@ -2198,13 +2206,14 @@ ixgbe_setup_msix(struct adapter *adapter)
/* Figure out a reasonable auto config value */
queues = (mp_ncpus > (msgs-1)) ? (msgs-1) : mp_ncpus;
if (ixgbe_num_queues == 0)
ixgbe_num_queues = queues;
if (ixgbe_num_queues != 0)
queues = ixgbe_num_queues;
/*
** Want one vector (RX/TX pair) per queue
** plus an additional for Link.
*/
want = ixgbe_num_queues + 1;
want = queues + 1;
if (msgs >= want)
msgs = want;
else {
@ -2217,7 +2226,7 @@ ixgbe_setup_msix(struct adapter *adapter)
if ((msgs) && pci_alloc_msix(dev, &msgs) == 0) {
device_printf(adapter->dev,
"Using MSIX interrupts with %d vectors\n", msgs);
adapter->num_queues = ixgbe_num_queues;
adapter->num_queues = queues;
return (msgs);
}
msi:
@ -3340,72 +3349,62 @@ static void
ixgbe_refresh_mbufs(struct rx_ring *rxr, int limit)
{
struct adapter *adapter = rxr->adapter;
bus_dma_segment_t seg[2];
bus_dma_segment_t hseg[1];
bus_dma_segment_t pseg[1];
struct ixgbe_rx_buf *rxbuf;
struct mbuf *mh, *mp;
bus_dmamap_t map;
int i, nsegs, error, cleaned;
i = rxr->next_to_refresh;
cleaned = -1; /* Signify no completions */
while (i != limit) {
rxbuf = &rxr->rx_buffers[i];
if (rxbuf->m_head == NULL) {
if ((rxbuf->m_head == NULL) && (rxr->hdr_split)) {
mh = m_gethdr(M_DONTWAIT, MT_DATA);
if (mh == NULL)
goto update;
} else /* reuse */
mh = rxbuf->m_head;
mh->m_len = MHLEN;
mh->m_flags |= M_PKTHDR;
mh->m_pkthdr.len = mh->m_len = MHLEN;
mh->m_len = MHLEN;
mh->m_flags |= M_PKTHDR;
m_adj(mh, ETHER_ALIGN);
/* Get the memory mapping */
error = bus_dmamap_load_mbuf_sg(rxr->htag,
rxbuf->hmap, mh, hseg, &nsegs, BUS_DMA_NOWAIT);
if (error != 0) {
printf("GET BUF: dmamap load"
" failure - %d\n", error);
m_free(mh);
goto update;
}
rxbuf->m_head = mh;
bus_dmamap_sync(rxr->htag, rxbuf->hmap,
BUS_DMASYNC_PREREAD);
rxr->rx_base[i].read.hdr_addr =
htole64(hseg[0].ds_addr);
}
if (rxbuf->m_pack == NULL) {
mp = m_getjcl(M_DONTWAIT, MT_DATA,
M_PKTHDR, adapter->rx_mbuf_sz);
if (mp == NULL)
goto update;
mp->m_len = adapter->rx_mbuf_sz;
mp->m_flags &= ~M_PKTHDR;
} else { /* reusing */
mp = rxbuf->m_pack;
mp->m_len = adapter->rx_mbuf_sz;
mp->m_flags &= ~M_PKTHDR;
mp->m_next = NULL;
mp->m_pkthdr.len = mp->m_len = adapter->rx_mbuf_sz;
/* Get the memory mapping */
error = bus_dmamap_load_mbuf_sg(rxr->ptag,
rxbuf->pmap, mp, pseg, &nsegs, BUS_DMA_NOWAIT);
if (error != 0) {
printf("GET BUF: dmamap load"
" failure - %d\n", error);
m_free(mp);
goto update;
}
rxbuf->m_pack = mp;
bus_dmamap_sync(rxr->ptag, rxbuf->pmap,
BUS_DMASYNC_PREREAD);
rxr->rx_base[i].read.pkt_addr =
htole64(pseg[0].ds_addr);
}
/*
** Need to create a chain for the following
** dmamap call at this point.
*/
mh->m_next = mp;
mh->m_pkthdr.len = mh->m_len + mp->m_len;
/* Get the memory mapping */
error = bus_dmamap_load_mbuf_sg(rxr->rxtag,
rxr->spare_map, mh, seg, &nsegs, BUS_DMA_NOWAIT);
if (error != 0) {
printf("GET BUF: dmamap load failure - %d\n", error);
m_free(mh);
goto update;
}
/* Unload old mapping and update buffer struct */
if (rxbuf->m_head != NULL)
bus_dmamap_unload(rxr->rxtag, rxbuf->map);
map = rxbuf->map;
rxbuf->map = rxr->spare_map;
rxr->spare_map = map;
rxbuf->m_head = mh;
rxbuf->m_pack = mp;
bus_dmamap_sync(rxr->rxtag,
rxbuf->map, BUS_DMASYNC_PREREAD);
/* Update descriptor */
rxr->rx_base[i].read.hdr_addr = htole64(seg[0].ds_addr);
rxr->rx_base[i].read.pkt_addr = htole64(seg[1].ds_addr);
cleaned = i;
/* Calculate next index */
if (++i == adapter->num_rx_desc)
@ -3415,12 +3414,11 @@ ixgbe_refresh_mbufs(struct rx_ring *rxr, int limit)
}
update:
if (cleaned != -1) /* If we refreshed some, bump tail */
IXGBE_WRITE_REG(&adapter->hw, IXGBE_RDT(rxr->me), cleaned);
IXGBE_WRITE_REG(&adapter->hw,
IXGBE_RDT(rxr->me), cleaned);
return;
}
/*********************************************************************
*
* Allocate memory for rx_buffer structures. Since we use one
@ -3446,42 +3444,50 @@ ixgbe_allocate_receive_buffers(struct rx_ring *rxr)
goto fail;
}
/*
** The tag is made to accomodate the largest buffer size
** with packet split (hence the two segments, even though
** it may not always use this.
*/
if ((error = bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
1, 0, /* alignment, bounds */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MJUM16BYTES, /* maxsize */
2, /* nsegments */
MJUMPAGESIZE, /* maxsegsize */
MSIZE, /* maxsize */
1, /* nsegments */
MSIZE, /* maxsegsize */
0, /* flags */
NULL, /* lockfunc */
NULL, /* lockfuncarg */
&rxr->rxtag))) {
&rxr->htag))) {
device_printf(dev, "Unable to create RX DMA tag\n");
goto fail;
}
/* Create the spare map (used by getbuf) */
error = bus_dmamap_create(rxr->rxtag, BUS_DMA_NOWAIT,
&rxr->spare_map);
if (error) {
device_printf(dev, "%s: bus_dmamap_create failed: %d\n",
__func__, error);
if ((error = bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
1, 0, /* alignment, bounds */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MJUMPAGESIZE, /* maxsize */
1, /* nsegments */
MJUMPAGESIZE, /* maxsegsize */
0, /* flags */
NULL, /* lockfunc */
NULL, /* lockfuncarg */
&rxr->ptag))) {
device_printf(dev, "Unable to create RX DMA tag\n");
goto fail;
}
for (i = 0; i < adapter->num_rx_desc; i++, rxbuf++) {
rxbuf = &rxr->rx_buffers[i];
error = bus_dmamap_create(rxr->rxtag,
BUS_DMA_NOWAIT, &rxbuf->map);
error = bus_dmamap_create(rxr->htag,
BUS_DMA_NOWAIT, &rxbuf->hmap);
if (error) {
device_printf(dev, "Unable to create RX DMA map\n");
device_printf(dev, "Unable to create RX head map\n");
goto fail;
}
error = bus_dmamap_create(rxr->ptag,
BUS_DMA_NOWAIT, &rxbuf->pmap);
if (error) {
device_printf(dev, "Unable to create RX pkt map\n");
goto fail;
}
}
@ -3550,6 +3556,36 @@ ixgbe_setup_hw_rsc(struct rx_ring *rxr)
}
static void
ixgbe_free_receive_ring(struct rx_ring *rxr)
{
struct adapter *adapter;
struct ixgbe_rx_buf *rxbuf;
int i;
adapter = rxr->adapter;
for (i = 0; i < adapter->num_rx_desc; i++) {
rxbuf = &rxr->rx_buffers[i];
if (rxbuf->m_head != NULL) {
bus_dmamap_sync(rxr->htag, rxbuf->hmap,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(rxr->htag, rxbuf->hmap);
rxbuf->m_head->m_flags |= M_PKTHDR;
m_freem(rxbuf->m_head);
}
if (rxbuf->m_pack != NULL) {
bus_dmamap_sync(rxr->ptag, rxbuf->pmap,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(rxr->ptag, rxbuf->pmap);
rxbuf->m_pack->m_flags |= M_PKTHDR;
m_freem(rxbuf->m_pack);
}
rxbuf->m_head = NULL;
rxbuf->m_pack = NULL;
}
}
/*********************************************************************
*
* Initialize a receive ring and its buffers.
@ -3562,9 +3598,9 @@ ixgbe_setup_receive_ring(struct rx_ring *rxr)
struct ifnet *ifp;
device_t dev;
struct ixgbe_rx_buf *rxbuf;
bus_dma_segment_t seg[2];
bus_dma_segment_t pseg[1], hseg[1];
struct lro_ctrl *lro = &rxr->lro;
int rsize, nsegs, error;
int rsize, nsegs, error = 0;
adapter = rxr->adapter;
ifp = adapter->ifp;
@ -3576,55 +3612,62 @@ ixgbe_setup_receive_ring(struct rx_ring *rxr)
sizeof(union ixgbe_adv_rx_desc), DBA_ALIGN);
bzero((void *)rxr->rx_base, rsize);
/*
** Free current RX buffer structs and their mbufs
*/
for (int i = 0; i < adapter->num_rx_desc; i++) {
rxbuf = &rxr->rx_buffers[i];
if (rxbuf->m_head != NULL) {
bus_dmamap_sync(rxr->rxtag, rxbuf->map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(rxr->rxtag, rxbuf->map);
if (rxbuf->m_head) {
rxbuf->m_head->m_next = rxbuf->m_pack;
m_freem(rxbuf->m_head);
}
rxbuf->m_head = NULL;
rxbuf->m_pack = NULL;
}
}
/* Free current RX buffer structs and their mbufs */
ixgbe_free_receive_ring(rxr);
/* Configure header split? */
if (ixgbe_header_split)
rxr->hdr_split = TRUE;
/* Now replenish the mbufs */
for (int j = 0; j != adapter->num_rx_desc; ++j) {
struct mbuf *mh, *mp;
rxbuf = &rxr->rx_buffers[j];
/*
** Dont allocate mbufs if not
** doing header split, its wasteful
*/
if (rxr->hdr_split == FALSE)
goto skip_head;
/* First the header */
rxbuf->m_head = m_gethdr(M_DONTWAIT, MT_DATA);
if (rxbuf->m_head == NULL)
panic("RX ring hdr initialization failed!\n");
rxbuf->m_head->m_len = MHLEN;
rxbuf->m_head->m_flags |= M_PKTHDR;
rxbuf->m_head->m_pkthdr.len = rxbuf->m_head->m_len;
goto fail;
m_adj(rxbuf->m_head, ETHER_ALIGN);
mh = rxbuf->m_head;
mh->m_len = mh->m_pkthdr.len = MHLEN;
mh->m_flags |= M_PKTHDR;
/* Get the memory mapping */
error = bus_dmamap_load_mbuf_sg(rxr->htag,
rxbuf->hmap, rxbuf->m_head, hseg,
&nsegs, BUS_DMA_NOWAIT);
if (error != 0) /* Nothing elegant to do here */
goto fail;
bus_dmamap_sync(rxr->htag,
rxbuf->hmap, BUS_DMASYNC_PREREAD);
/* Update descriptor */
rxr->rx_base[j].read.hdr_addr = htole64(hseg[0].ds_addr);
skip_head:
/* Now the payload cluster */
rxbuf->m_pack = m_getjcl(M_DONTWAIT, MT_DATA,
M_PKTHDR, adapter->rx_mbuf_sz);
if (rxbuf->m_pack == NULL)
panic("RX ring pkt initialization failed!\n");
rxbuf->m_pack->m_len = adapter->rx_mbuf_sz;
rxbuf->m_head->m_next = rxbuf->m_pack;
rxbuf->m_head->m_pkthdr.len += rxbuf->m_pack->m_len;
goto fail;
mp = rxbuf->m_pack;
mp->m_pkthdr.len = mp->m_len = adapter->rx_mbuf_sz;
/* Get the memory mapping */
error = bus_dmamap_load_mbuf_sg(rxr->rxtag,
rxbuf->map, rxbuf->m_head, seg,
error = bus_dmamap_load_mbuf_sg(rxr->ptag,
rxbuf->pmap, mp, pseg,
&nsegs, BUS_DMA_NOWAIT);
if (error != 0)
panic("RX ring dma initialization failed!\n");
bus_dmamap_sync(rxr->rxtag,
rxbuf->map, BUS_DMASYNC_PREREAD);
goto fail;
bus_dmamap_sync(rxr->ptag,
rxbuf->pmap, BUS_DMASYNC_PREREAD);
/* Update descriptor */
rxr->rx_base[j].read.hdr_addr = htole64(seg[0].ds_addr);
rxr->rx_base[j].read.pkt_addr = htole64(seg[1].ds_addr);
rxr->rx_base[j].read.pkt_addr = htole64(pseg[0].ds_addr);
}
@ -3632,10 +3675,8 @@ ixgbe_setup_receive_ring(struct rx_ring *rxr)
rxr->next_to_check = 0;
rxr->next_to_refresh = 0;
rxr->lro_enabled = FALSE;
/* Use header split if configured */
if (ixgbe_header_split)
rxr->hdr_split = TRUE;
rxr->rx_split_packets = 0;
rxr->rx_bytes = 0;
bus_dmamap_sync(rxr->rxdma.dma_tag, rxr->rxdma.dma_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
@ -3651,8 +3692,10 @@ ixgbe_setup_receive_ring(struct rx_ring *rxr)
ixgbe_setup_hw_rsc(rxr);
else if (ifp->if_capenable & IFCAP_LRO) {
int err = tcp_lro_init(lro);
if (err)
panic("LRO Initialization failed!\n");
if (err) {
device_printf(dev, "LRO Initialization failed!\n");
goto fail;
}
INIT_DEBUGOUT("RX Soft LRO Initialized\n");
rxr->lro_enabled = TRUE;
lro->ifp = adapter->ifp;
@ -3660,6 +3703,11 @@ ixgbe_setup_receive_ring(struct rx_ring *rxr)
IXGBE_RX_UNLOCK(rxr);
return (0);
fail:
ixgbe_free_receive_ring(rxr);
IXGBE_RX_UNLOCK(rxr);
return (error);
}
/*********************************************************************
@ -3686,17 +3734,7 @@ ixgbe_setup_receive_structures(struct adapter *adapter)
*/
for (int i = 0; i < j; ++i) {
rxr = &adapter->rx_rings[i];
for (int n = 0; n < adapter->num_rx_desc; n++) {
struct ixgbe_rx_buf *rxbuf;
rxbuf = &rxr->rx_buffers[n];
if (rxbuf->m_head != NULL) {
bus_dmamap_sync(rxr->rxtag, rxbuf->map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(rxr->rxtag, rxbuf->map);
m_freem(rxbuf->m_head);
rxbuf->m_head = NULL;
}
}
ixgbe_free_receive_ring(rxr);
}
return (ENOBUFS);
@ -3766,14 +3804,6 @@ ixgbe_initialize_receive_units(struct adapter *adapter)
IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT)
& IXGBE_SRRCTL_BSIZEHDR_MASK);
srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
/* PSRTYPE must be initialized in 82599 */
u32 psrtype = IXGBE_PSRTYPE_TCPHDR |
IXGBE_PSRTYPE_UDPHDR |
IXGBE_PSRTYPE_IPV4HDR |
IXGBE_PSRTYPE_IPV6HDR;
IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(0), psrtype);
}
} else
srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(i), srrctl);
@ -3783,6 +3813,15 @@ ixgbe_initialize_receive_units(struct adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_RDT(i), 0);
}
if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
/* PSRTYPE must be initialized in 82599 */
u32 psrtype = IXGBE_PSRTYPE_TCPHDR |
IXGBE_PSRTYPE_UDPHDR |
IXGBE_PSRTYPE_IPV4HDR |
IXGBE_PSRTYPE_IPV6HDR;
IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(0), psrtype);
}
rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
/* Setup RSS */
@ -3861,38 +3900,58 @@ ixgbe_free_receive_structures(struct adapter *adapter)
* Free receive ring data structures
*
**********************************************************************/
void
static void
ixgbe_free_receive_buffers(struct rx_ring *rxr)
{
struct adapter *adapter = NULL;
struct ixgbe_rx_buf *rxbuf = NULL;
struct adapter *adapter = rxr->adapter;
struct ixgbe_rx_buf *rxbuf;
INIT_DEBUGOUT("free_receive_buffers: begin");
adapter = rxr->adapter;
INIT_DEBUGOUT("free_receive_structures: begin");
/* Cleanup any existing buffers */
if (rxr->rx_buffers != NULL) {
rxbuf = &rxr->rx_buffers[0];
for (int i = 0; i < adapter->num_rx_desc; i++) {
if (rxbuf->map != NULL) {
bus_dmamap_sync(rxr->rxtag, rxbuf->map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(rxr->rxtag, rxbuf->map);
bus_dmamap_destroy(rxr->rxtag, rxbuf->map);
}
rxbuf = &rxr->rx_buffers[i];
if (rxbuf->m_head != NULL) {
bus_dmamap_sync(rxr->htag, rxbuf->hmap,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(rxr->htag, rxbuf->hmap);
rxbuf->m_head->m_flags |= M_PKTHDR;
m_freem(rxbuf->m_head);
}
if (rxbuf->m_pack != NULL) {
bus_dmamap_sync(rxr->ptag, rxbuf->pmap,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(rxr->ptag, rxbuf->pmap);
rxbuf->m_pack->m_flags |= M_PKTHDR;
m_freem(rxbuf->m_pack);
}
rxbuf->m_head = NULL;
++rxbuf;
rxbuf->m_pack = NULL;
if (rxbuf->hmap != NULL) {
bus_dmamap_destroy(rxr->htag, rxbuf->hmap);
rxbuf->hmap = NULL;
}
if (rxbuf->pmap != NULL) {
bus_dmamap_destroy(rxr->ptag, rxbuf->pmap);
rxbuf->pmap = NULL;
}
}
if (rxr->rx_buffers != NULL) {
free(rxr->rx_buffers, M_DEVBUF);
rxr->rx_buffers = NULL;
}
}
if (rxr->rx_buffers != NULL) {
free(rxr->rx_buffers, M_DEVBUF);
rxr->rx_buffers = NULL;
if (rxr->htag != NULL) {
bus_dma_tag_destroy(rxr->htag);
rxr->htag = NULL;
}
if (rxr->rxtag != NULL) {
bus_dma_tag_destroy(rxr->rxtag);
rxr->rxtag = NULL;
if (rxr->ptag != NULL) {
bus_dma_tag_destroy(rxr->ptag);
rxr->ptag = NULL;
}
return;
}

7
sys/dev/ixgbe/ixgbe.h
View File

@ -238,7 +238,8 @@ struct ixgbe_rx_buf {
struct mbuf *m_head;
struct mbuf *m_pack;
struct mbuf *fmp;
bus_dmamap_t map;
bus_dmamap_t hmap;
bus_dmamap_t pmap;
};
/*
@ -323,8 +324,8 @@ struct rx_ring {
u32 next_to_check;
char mtx_name[16];
struct ixgbe_rx_buf *rx_buffers;
bus_dma_tag_t rxtag;
bus_dmamap_t spare_map;
bus_dma_tag_t htag;
bus_dma_tag_t ptag;
u32 bytes; /* Used for AIM calc */
u32 packets;