#define SGE_RX_SM_BUF_SIZE 1536
-/*
- * If USE_RX_PAGE is defined, the small freelist populated with (partial)
- * pages instead of skbs. Pages are carved up into RX_PAGE_SIZE chunks (must
- * be a multiple of the host page size).
- */
-#define USE_RX_PAGE
-#define RX_PAGE_SIZE 2048
-
-/*
- * skb freelist packets are copied into a new skb (and the freelist one is
- * reused) if their len is <=
- */
#define SGE_RX_COPY_THRES 256
+#define SGE_RX_PULL_LEN 128
/*
- * Minimum number of freelist entries before we start dropping TUNNEL frames.
+ * Page chunk size for FL0 buffers if FL0 is to be populated with page chunks.
+ * It must be a divisor of PAGE_SIZE. If set to 0 FL0 will use sk_buffs
+ * directly.
*/
+#define FL0_PG_CHUNK_SIZE 2048
+
#define SGE_RX_DROP_THRES 16
/*
};
struct tx_desc {
- u64 flit[TX_DESC_FLITS];
+ __be64 flit[TX_DESC_FLITS];
};
struct rx_desc {
struct tx_sw_desc { /* SW state per Tx descriptor */
struct sk_buff *skb;
+ u8 eop; /* set if last descriptor for packet */
+ u8 addr_idx; /* buffer index of first SGL entry in descriptor */
+ u8 fragidx; /* first page fragment associated with descriptor */
+ s8 sflit; /* start flit of first SGL entry in descriptor */
};
-struct rx_sw_desc { /* SW state per Rx descriptor */
+struct rx_sw_desc { /* SW state per Rx descriptor */
union {
struct sk_buff *skb;
- struct sge_fl_page page;
- } t;
- DECLARE_PCI_UNMAP_ADDR(dma_addr);
+ struct fl_pg_chunk pg_chunk;
+ };
+ DECLARE_PCI_UNMAP_ADDR(dma_addr);
};
struct rsp_desc { /* response queue descriptor */
u8 intr_gen;
};
-struct unmap_info { /* packet unmapping info, overlays skb->cb */
- int sflit; /* start flit of first SGL entry in Tx descriptor */
- u16 fragidx; /* first page fragment in current Tx descriptor */
- u16 addr_idx; /* buffer index of first SGL entry in descriptor */
- u32 len; /* mapped length of skb main body */
-};
-
/*
* Holds unmapping information for Tx packets that need deferred unmapping.
* This structure lives at skb->head and must be allocated by callers.
static inline void refill_rspq(struct adapter *adapter,
const struct sge_rspq *q, unsigned int credits)
{
+ rmb();
t3_write_reg(adapter, A_SG_RSPQ_CREDIT_RETURN,
V_RSPQ(q->cntxt_id) | V_CREDITS(credits));
}
*
* Unmap the main body of an sk_buff and its page fragments, if any.
* Because of the fairly complicated structure of our SGLs and the desire
- * to conserve space for metadata, we keep the information necessary to
- * unmap an sk_buff partly in the sk_buff itself (in its cb), and partly
- * in the Tx descriptors (the physical addresses of the various data
- * buffers). The send functions initialize the state in skb->cb so we
- * can unmap the buffers held in the first Tx descriptor here, and we
- * have enough information at this point to update the state for the next
- * Tx descriptor.
+ * to conserve space for metadata, the information necessary to unmap an
+ * sk_buff is spread across the sk_buff itself (buffer lengths), the HW Tx
+ * descriptors (the physical addresses of the various data buffers), and
+ * the SW descriptor state (assorted indices). The send functions
+ * initialize the indices for the first packet descriptor so we can unmap
+ * the buffers held in the first Tx descriptor here, and we have enough
+ * information at this point to set the state for the next Tx descriptor.
+ *
+ * Note that it is possible to clean up the first descriptor of a packet
+ * before the send routines have written the next descriptors, but this
+ * race does not cause any problem. We just end up writing the unmapping
+ * info for the descriptor first.
*/
static inline void unmap_skb(struct sk_buff *skb, struct sge_txq *q,
unsigned int cidx, struct pci_dev *pdev)
{
const struct sg_ent *sgp;
- struct unmap_info *ui = (struct unmap_info *)skb->cb;
- int nfrags, frag_idx, curflit, j = ui->addr_idx;
+ struct tx_sw_desc *d = &q->sdesc[cidx];
+ int nfrags, frag_idx, curflit, j = d->addr_idx;
- sgp = (struct sg_ent *)&q->desc[cidx].flit[ui->sflit];
+ sgp = (struct sg_ent *)&q->desc[cidx].flit[d->sflit];
+ frag_idx = d->fragidx;
- if (ui->len) {
- pci_unmap_single(pdev, be64_to_cpu(sgp->addr[0]), ui->len,
- PCI_DMA_TODEVICE);
- ui->len = 0; /* so we know for next descriptor for this skb */
+ if (frag_idx == 0 && skb_headlen(skb)) {
+ pci_unmap_single(pdev, be64_to_cpu(sgp->addr[0]),
+ skb_headlen(skb), PCI_DMA_TODEVICE);
j = 1;
}
- frag_idx = ui->fragidx;
- curflit = ui->sflit + 1 + j;
+ curflit = d->sflit + 1 + j;
nfrags = skb_shinfo(skb)->nr_frags;
while (frag_idx < nfrags && curflit < WR_FLITS) {
frag_idx++;
}
- if (frag_idx < nfrags) { /* SGL continues into next Tx descriptor */
- ui->fragidx = frag_idx;
- ui->addr_idx = j;
- ui->sflit = curflit - WR_FLITS - j; /* sflit can be -1 */
+ if (frag_idx < nfrags) { /* SGL continues into next Tx descriptor */
+ d = cidx + 1 == q->size ? q->sdesc : d + 1;
+ d->fragidx = frag_idx;
+ d->addr_idx = j;
+ d->sflit = curflit - WR_FLITS - j; /* sflit can be -1 */
}
}
if (d->skb) { /* an SGL is present */
if (need_unmap)
unmap_skb(d->skb, q, cidx, pdev);
- if (d->skb->priority == cidx)
+ if (d->eop)
kfree_skb(d->skb);
}
++d;
pci_unmap_single(pdev, pci_unmap_addr(d, dma_addr),
q->buf_size, PCI_DMA_FROMDEVICE);
-
- if (q->buf_size != RX_PAGE_SIZE) {
- kfree_skb(d->t.skb);
- d->t.skb = NULL;
+ if (q->use_pages) {
+ put_page(d->pg_chunk.page);
+ d->pg_chunk.page = NULL;
} else {
- if (d->t.page.frag.page)
- put_page(d->t.page.frag.page);
- d->t.page.frag.page = NULL;
+ kfree_skb(d->skb);
+ d->skb = NULL;
}
if (++cidx == q->size)
cidx = 0;
}
- if (q->page.frag.page)
- put_page(q->page.frag.page);
- q->page.frag.page = NULL;
+ if (q->pg_chunk.page) {
+ __free_page(q->pg_chunk.page);
+ q->pg_chunk.page = NULL;
+ }
}
/**
* add_one_rx_buf - add a packet buffer to a free-buffer list
- * @va: va of the buffer to add
+ * @va: buffer start VA
* @len: the buffer length
* @d: the HW Rx descriptor to write
* @sd: the SW Rx descriptor to write
* Add a buffer of the given length to the supplied HW and SW Rx
* descriptors.
*/
-static inline void add_one_rx_buf(unsigned char *va, unsigned int len,
+static inline void add_one_rx_buf(void *va, unsigned int len,
struct rx_desc *d, struct rx_sw_desc *sd,
unsigned int gen, struct pci_dev *pdev)
{
d->gen2 = cpu_to_be32(V_FLD_GEN2(gen));
}
+static int alloc_pg_chunk(struct sge_fl *q, struct rx_sw_desc *sd, gfp_t gfp)
+{
+ if (!q->pg_chunk.page) {
+ q->pg_chunk.page = alloc_page(gfp);
+ if (unlikely(!q->pg_chunk.page))
+ return -ENOMEM;
+ q->pg_chunk.va = page_address(q->pg_chunk.page);
+ q->pg_chunk.offset = 0;
+ }
+ sd->pg_chunk = q->pg_chunk;
+
+ q->pg_chunk.offset += q->buf_size;
+ if (q->pg_chunk.offset == PAGE_SIZE)
+ q->pg_chunk.page = NULL;
+ else {
+ q->pg_chunk.va += q->buf_size;
+ get_page(q->pg_chunk.page);
+ }
+ return 0;
+}
+
/**
* refill_fl - refill an SGE free-buffer list
* @adapter: the adapter
*/
static void refill_fl(struct adapter *adap, struct sge_fl *q, int n, gfp_t gfp)
{
+ void *buf_start;
struct rx_sw_desc *sd = &q->sdesc[q->pidx];
struct rx_desc *d = &q->desc[q->pidx];
- struct sge_fl_page *p = &q->page;
while (n--) {
- unsigned char *va;
-
- if (unlikely(q->buf_size != RX_PAGE_SIZE)) {
- struct sk_buff *skb = alloc_skb(q->buf_size, gfp);
-
- if (!skb) {
- q->alloc_failed++;
+ if (q->use_pages) {
+ if (unlikely(alloc_pg_chunk(q, sd, gfp))) {
+nomem: q->alloc_failed++;
break;
}
- va = skb->data;
- sd->t.skb = skb;
+ buf_start = sd->pg_chunk.va;
} else {
- if (!p->frag.page) {
- p->frag.page = alloc_pages(gfp, 0);
- if (unlikely(!p->frag.page)) {
- q->alloc_failed++;
- break;
- } else {
- p->frag.size = RX_PAGE_SIZE;
- p->frag.page_offset = 0;
- p->va = page_address(p->frag.page);
- }
- }
+ struct sk_buff *skb = alloc_skb(q->buf_size, gfp);
- memcpy(&sd->t, p, sizeof(*p));
- va = p->va;
+ if (!skb)
+ goto nomem;
- p->frag.page_offset += RX_PAGE_SIZE;
- BUG_ON(p->frag.page_offset > PAGE_SIZE);
- p->va += RX_PAGE_SIZE;
- if (p->frag.page_offset == PAGE_SIZE)
- p->frag.page = NULL;
- else
- get_page(p->frag.page);
+ sd->skb = skb;
+ buf_start = skb->data;
}
- add_one_rx_buf(va, q->buf_size, d, sd, q->gen, adap->pdev);
-
+ add_one_rx_buf(buf_start, q->buf_size, d, sd, q->gen,
+ adap->pdev);
d++;
sd++;
if (++q->pidx == q->size) {
}
q->credits++;
}
-
+ wmb();
t3_write_reg(adap, A_SG_KDOORBELL, V_EGRCNTX(q->cntxt_id));
}
struct rx_desc *from = &q->desc[idx];
struct rx_desc *to = &q->desc[q->pidx];
- memcpy(&q->sdesc[q->pidx], &q->sdesc[idx], sizeof(struct rx_sw_desc));
+ q->sdesc[q->pidx] = q->sdesc[idx];
to->addr_lo = from->addr_lo; /* already big endian */
to->addr_hi = from->addr_hi; /* likewise */
wmb();
* as HW contexts, packet buffers, and descriptor rings. Traffic to the
* queue set must be quiesced prior to calling this.
*/
-void t3_free_qset(struct adapter *adapter, struct sge_qset *q)
+static void t3_free_qset(struct adapter *adapter, struct sge_qset *q)
{
int i;
struct pci_dev *pdev = adapter->pdev;
q->rspq.desc, q->rspq.phys_addr);
}
- if (q->netdev)
- q->netdev->atalk_ptr = NULL;
-
memset(q, 0, sizeof(*q));
}
}
/**
+ * get_packet - return the next ingress packet buffer from a free list
+ * @adap: the adapter that received the packet
+ * @fl: the SGE free list holding the packet
+ * @len: the packet length including any SGE padding
+ * @drop_thres: # of remaining buffers before we start dropping packets
+ *
+ * Get the next packet from a free list and complete setup of the
+ * sk_buff. If the packet is small we make a copy and recycle the
+ * original buffer, otherwise we use the original buffer itself. If a
+ * positive drop threshold is supplied packets are dropped and their
+ * buffers recycled if (a) the number of remaining buffers is under the
+ * threshold and the packet is too big to copy, or (b) the packet should
+ * be copied but there is no memory for the copy.
+ */
+static struct sk_buff *get_packet(struct adapter *adap, struct sge_fl *fl,
+ unsigned int len, unsigned int drop_thres)
+{
+ struct sk_buff *skb = NULL;
+ struct rx_sw_desc *sd = &fl->sdesc[fl->cidx];
+
+ prefetch(sd->skb->data);
+ fl->credits--;
+
+ if (len <= SGE_RX_COPY_THRES) {
+ skb = alloc_skb(len, GFP_ATOMIC);
+ if (likely(skb != NULL)) {
+ __skb_put(skb, len);
+ pci_dma_sync_single_for_cpu(adap->pdev,
+ pci_unmap_addr(sd, dma_addr), len,
+ PCI_DMA_FROMDEVICE);
+ memcpy(skb->data, sd->skb->data, len);
+ pci_dma_sync_single_for_device(adap->pdev,
+ pci_unmap_addr(sd, dma_addr), len,
+ PCI_DMA_FROMDEVICE);
+ } else if (!drop_thres)
+ goto use_orig_buf;
+recycle:
+ recycle_rx_buf(adap, fl, fl->cidx);
+ return skb;
+ }
+
+ if (unlikely(fl->credits < drop_thres))
+ goto recycle;
+
+use_orig_buf:
+ pci_unmap_single(adap->pdev, pci_unmap_addr(sd, dma_addr),
+ fl->buf_size, PCI_DMA_FROMDEVICE);
+ skb = sd->skb;
+ skb_put(skb, len);
+ __refill_fl(adap, fl);
+ return skb;
+}
+
+/**
+ * get_packet_pg - return the next ingress packet buffer from a free list
+ * @adap: the adapter that received the packet
+ * @fl: the SGE free list holding the packet
+ * @len: the packet length including any SGE padding
+ * @drop_thres: # of remaining buffers before we start dropping packets
+ *
+ * Get the next packet from a free list populated with page chunks.
+ * If the packet is small we make a copy and recycle the original buffer,
+ * otherwise we attach the original buffer as a page fragment to a fresh
+ * sk_buff. If a positive drop threshold is supplied packets are dropped
+ * and their buffers recycled if (a) the number of remaining buffers is
+ * under the threshold and the packet is too big to copy, or (b) there's
+ * no system memory.
+ *
+ * Note: this function is similar to @get_packet but deals with Rx buffers
+ * that are page chunks rather than sk_buffs.
+ */
+static struct sk_buff *get_packet_pg(struct adapter *adap, struct sge_fl *fl,
+ unsigned int len, unsigned int drop_thres)
+{
+ struct sk_buff *skb = NULL;
+ struct rx_sw_desc *sd = &fl->sdesc[fl->cidx];
+
+ if (len <= SGE_RX_COPY_THRES) {
+ skb = alloc_skb(len, GFP_ATOMIC);
+ if (likely(skb != NULL)) {
+ __skb_put(skb, len);
+ pci_dma_sync_single_for_cpu(adap->pdev,
+ pci_unmap_addr(sd, dma_addr), len,
+ PCI_DMA_FROMDEVICE);
+ memcpy(skb->data, sd->pg_chunk.va, len);
+ pci_dma_sync_single_for_device(adap->pdev,
+ pci_unmap_addr(sd, dma_addr), len,
+ PCI_DMA_FROMDEVICE);
+ } else if (!drop_thres)
+ return NULL;
+recycle:
+ fl->credits--;
+ recycle_rx_buf(adap, fl, fl->cidx);
+ return skb;
+ }
+
+ if (unlikely(fl->credits <= drop_thres))
+ goto recycle;
+
+ skb = alloc_skb(SGE_RX_PULL_LEN, GFP_ATOMIC);
+ if (unlikely(!skb)) {
+ if (!drop_thres)
+ return NULL;
+ goto recycle;
+ }
+
+ pci_unmap_single(adap->pdev, pci_unmap_addr(sd, dma_addr),
+ fl->buf_size, PCI_DMA_FROMDEVICE);
+ __skb_put(skb, SGE_RX_PULL_LEN);
+ memcpy(skb->data, sd->pg_chunk.va, SGE_RX_PULL_LEN);
+ skb_fill_page_desc(skb, 0, sd->pg_chunk.page,
+ sd->pg_chunk.offset + SGE_RX_PULL_LEN,
+ len - SGE_RX_PULL_LEN);
+ skb->len = len;
+ skb->data_len = len - SGE_RX_PULL_LEN;
+ skb->truesize += skb->data_len;
+
+ fl->credits--;
+ /*
+ * We do not refill FLs here, we let the caller do it to overlap a
+ * prefetch.
+ */
+ return skb;
+}
+
+/**
* get_imm_packet - return the next ingress packet buffer from a response
* @resp: the response descriptor containing the packet data
*
if (skb) {
__skb_put(skb, IMMED_PKT_SIZE);
- memcpy(skb->data, resp->imm_data, IMMED_PKT_SIZE);
+ skb_copy_to_linear_data(skb, resp->imm_data, IMMED_PKT_SIZE);
}
return skb;
}
const struct sge_txq *q,
const struct sg_ent *sgl,
unsigned int flits, unsigned int sgl_flits,
- unsigned int gen, unsigned int wr_hi,
- unsigned int wr_lo)
+ unsigned int gen, __be32 wr_hi,
+ __be32 wr_lo)
{
struct work_request_hdr *wrp = (struct work_request_hdr *)d;
struct tx_sw_desc *sd = &q->sdesc[pidx];
sd->skb = skb;
if (need_skb_unmap()) {
- struct unmap_info *ui = (struct unmap_info *)skb->cb;
-
- ui->fragidx = 0;
- ui->addr_idx = 0;
- ui->sflit = flits;
+ sd->fragidx = 0;
+ sd->addr_idx = 0;
+ sd->sflit = flits;
}
if (likely(ndesc == 1)) {
- skb->priority = pidx;
+ sd->eop = 1;
wrp->wr_hi = htonl(F_WR_SOP | F_WR_EOP | V_WR_DATATYPE(1) |
V_WR_SGLSFLT(flits)) | wr_hi;
wmb();
fp += avail;
d++;
+ sd->eop = 0;
sd++;
if (++pidx == q->size) {
pidx = 0;
wr_gen2(d, gen);
flits = 1;
}
- skb->priority = pidx;
+ sd->eop = 1;
wrp->wr_hi |= htonl(F_WR_EOP);
wmb();
wp->wr_lo = htonl(V_WR_LEN(WR_FLITS) | V_WR_GEN(ogen)) | wr_lo;
CPL_ETH_II : CPL_ETH_II_VLAN;
tso_info |= V_LSO_ETH_TYPE(eth_type) |
V_LSO_IPHDR_WORDS(ip_hdr(skb)->ihl) |
- V_LSO_TCPHDR_WORDS(skb->h.th->doff);
+ V_LSO_TCPHDR_WORDS(tcp_hdr(skb)->doff);
hdr->lso_info = htonl(tso_info);
flits = 3;
} else {
if (skb->len <= WR_LEN - sizeof(*cpl)) {
q->sdesc[pidx].skb = NULL;
if (!skb->data_len)
- memcpy(&d->flit[2], skb->data, skb->len);
+ skb_copy_from_linear_data(skb, &d->flit[2],
+ skb->len);
else
skb_copy_bits(skb, 0, &d->flit[2], skb->len);
sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
sgl_flits = make_sgl(skb, sgp, skb->data, skb_headlen(skb), adap->pdev);
- if (need_skb_unmap())
- ((struct unmap_info *)skb->cb)->len = skb_headlen(skb);
write_wr_hdr_sgl(ndesc, skb, d, pidx, q, sgl, flits, sgl_flits, gen,
htonl(V_WR_OP(FW_WROPCODE_TUNNEL_TX_PKT) | compl),
htonl(V_WR_TID(q->token)));
}
+static inline void t3_stop_queue(struct net_device *dev, struct sge_qset *qs,
+ struct sge_txq *q)
+{
+ netif_stop_queue(dev);
+ set_bit(TXQ_ETH, &qs->txq_stopped);
+ q->stops++;
+}
+
/**
* eth_xmit - add a packet to the Ethernet Tx queue
* @skb: the packet
{
unsigned int ndesc, pidx, credits, gen, compl;
const struct port_info *pi = netdev_priv(dev);
- struct adapter *adap = dev->priv;
- struct sge_qset *qs = dev2qset(dev);
+ struct adapter *adap = pi->adapter;
+ struct sge_qset *qs = pi->qs;
struct sge_txq *q = &qs->txq[TXQ_ETH];
/*
ndesc = calc_tx_descs(skb);
if (unlikely(credits < ndesc)) {
- if (!netif_queue_stopped(dev)) {
- netif_stop_queue(dev);
- set_bit(TXQ_ETH, &qs->txq_stopped);
- q->stops++;
- dev_err(&adap->pdev->dev,
- "%s: Tx ring %u full while queue awake!\n",
- dev->name, q->cntxt_id & 7);
- }
+ t3_stop_queue(dev, qs, q);
+ dev_err(&adap->pdev->dev,
+ "%s: Tx ring %u full while queue awake!\n",
+ dev->name, q->cntxt_id & 7);
spin_unlock(&q->lock);
return NETDEV_TX_BUSY;
}
q->in_use += ndesc;
- if (unlikely(credits - ndesc < q->stop_thres)) {
- q->stops++;
- netif_stop_queue(dev);
- set_bit(TXQ_ETH, &qs->txq_stopped);
-#if !USE_GTS
- if (should_restart_tx(q) &&
- test_and_clear_bit(TXQ_ETH, &qs->txq_stopped)) {
- q->restarts++;
- netif_wake_queue(dev);
- }
-#endif
- }
+ if (unlikely(credits - ndesc < q->stop_thres))
+ if (USE_GTS || !should_restart_tx(q))
+ t3_stop_queue(dev, qs, q);
gen = q->gen;
q->unacked += ndesc;
*
* Writes a packet as immediate data into a Tx descriptor. The packet
* contains a work request at its beginning. We must write the packet
- * carefully so the SGE doesn't read accidentally before it's written in
- * its entirety.
+ * carefully so the SGE doesn't read it accidentally before it's written
+ * in its entirety.
*/
static inline void write_imm(struct tx_desc *d, struct sk_buff *skb,
unsigned int len, unsigned int gen)
struct work_request_hdr *from = (struct work_request_hdr *)skb->data;
struct work_request_hdr *to = (struct work_request_hdr *)d;
- memcpy(&to[1], &from[1], len - sizeof(*from));
+ if (likely(!skb->data_len))
+ memcpy(&to[1], &from[1], len - sizeof(*from));
+ else
+ skb_copy_bits(skb, sizeof(*from), &to[1], len - sizeof(*from));
+
to->wr_hi = from->wr_hi | htonl(F_WR_SOP | F_WR_EOP |
V_WR_BCNTLFLT(len & 7));
wmb();
static inline int immediate(const struct sk_buff *skb)
{
- return skb->len <= WR_LEN && !skb->data_len;
+ return skb->len <= WR_LEN;
}
/**
struct sk_buff *skb;
struct sge_qset *qs = (struct sge_qset *)data;
struct sge_txq *q = &qs->txq[TXQ_CTRL];
- struct adapter *adap = qs->netdev->priv;
spin_lock(&q->lock);
again:reclaim_completed_tx_imm(q);
- while (q->in_use < q->size && (skb = __skb_dequeue(&q->sendq)) != NULL) {
+ while (q->in_use < q->size &&
+ (skb = __skb_dequeue(&q->sendq)) != NULL) {
write_imm(&q->desc[q->pidx], skb, skb->len, q->gen);
}
spin_unlock(&q->lock);
- t3_write_reg(adap, A_SG_KDOORBELL,
+ wmb();
+ t3_write_reg(qs->adap, A_SG_KDOORBELL,
F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
}
*/
int t3_mgmt_tx(struct adapter *adap, struct sk_buff *skb)
{
- return ctrl_xmit(adap, &adap->sge.qs[0].txq[TXQ_CTRL], skb);
+ int ret;
+ local_bh_disable();
+ ret = ctrl_xmit(adap, &adap->sge.qs[0].txq[TXQ_CTRL], skb);
+ local_bh_enable();
+
+ return ret;
}
/**
const dma_addr_t *p;
const struct skb_shared_info *si;
const struct deferred_unmap_info *dui;
- const struct unmap_info *ui = (struct unmap_info *)skb->cb;
dui = (struct deferred_unmap_info *)skb->head;
p = dui->addr;
- if (ui->len)
- pci_unmap_single(dui->pdev, *p++, ui->len, PCI_DMA_TODEVICE);
+ if (skb->tail - skb->transport_header)
+ pci_unmap_single(dui->pdev, *p++,
+ skb->tail - skb->transport_header,
+ PCI_DMA_TODEVICE);
si = skb_shinfo(skb);
for (i = 0; i < si->nr_frags; i++)
flits = skb_transport_offset(skb) / 8;
sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
- sgl_flits = make_sgl(skb, sgp, skb->h.raw, skb->tail - skb->h.raw,
+ sgl_flits = make_sgl(skb, sgp, skb_transport_header(skb),
+ skb->tail - skb->transport_header,
adap->pdev);
if (need_skb_unmap()) {
setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits);
skb->destructor = deferred_unmap_destructor;
- ((struct unmap_info *)skb->cb)->len = skb->tail - skb->h.raw;
}
write_wr_hdr_sgl(ndesc, skb, d, pidx, q, sgl, flits, sgl_flits,
*/
static inline unsigned int calc_tx_descs_ofld(const struct sk_buff *skb)
{
- unsigned int flits, cnt = skb_shinfo(skb)->nr_frags;
+ unsigned int flits, cnt;
- if (skb->len <= WR_LEN && cnt == 0)
+ if (skb->len <= WR_LEN)
return 1; /* packet fits as immediate data */
flits = skb_transport_offset(skb) / 8; /* headers */
- if (skb->tail != skb->h.raw)
+ cnt = skb_shinfo(skb)->nr_frags;
+ if (skb->tail != skb->transport_header)
cnt++;
return flits_to_desc(flits + sgl_len(cnt));
}
struct sk_buff *skb;
struct sge_qset *qs = (struct sge_qset *)data;
struct sge_txq *q = &qs->txq[TXQ_OFLD];
- struct adapter *adap = qs->netdev->priv;
+ const struct port_info *pi = netdev_priv(qs->netdev);
+ struct adapter *adap = pi->adapter;
spin_lock(&q->lock);
again:reclaim_completed_tx(adap, q);
set_bit(TXQ_RUNNING, &q->flags);
set_bit(TXQ_LAST_PKT_DB, &q->flags);
#endif
+ wmb();
t3_write_reg(adap, A_SG_KDOORBELL,
F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
}
else {
struct sge_qset *qs = rspq_to_qset(q);
- if (__netif_rx_schedule_prep(qs->netdev))
- __netif_rx_schedule(qs->netdev);
+ napi_schedule(&qs->napi);
q->rx_head = skb;
}
q->rx_tail = skb;
* receive handler. Batches need to be of modest size as we do prefetches
* on the packets in each.
*/
-static int ofld_poll(struct net_device *dev, int *budget)
+static int ofld_poll(struct napi_struct *napi, int budget)
{
- struct adapter *adapter = dev->priv;
- struct sge_qset *qs = dev2qset(dev);
+ struct sge_qset *qs = container_of(napi, struct sge_qset, napi);
struct sge_rspq *q = &qs->rspq;
- int work_done, limit = min(*budget, dev->quota), avail = limit;
+ struct adapter *adapter = qs->adap;
+ int work_done = 0;
- while (avail) {
+ while (work_done < budget) {
struct sk_buff *head, *tail, *skbs[RX_BUNDLE_SIZE];
int ngathered;
spin_lock_irq(&q->lock);
head = q->rx_head;
if (!head) {
- work_done = limit - avail;
- *budget -= work_done;
- dev->quota -= work_done;
- __netif_rx_complete(dev);
+ napi_complete(napi);
spin_unlock_irq(&q->lock);
- return 0;
+ return work_done;
}
tail = q->rx_tail;
q->rx_head = q->rx_tail = NULL;
spin_unlock_irq(&q->lock);
- for (ngathered = 0; avail && head; avail--) {
+ for (ngathered = 0; work_done < budget && head; work_done++) {
prefetch(head->data);
skbs[ngathered] = head;
head = head->next;
}
deliver_partial_bundle(&adapter->tdev, q, skbs, ngathered);
}
- work_done = limit - avail;
- *budget -= work_done;
- dev->quota -= work_done;
- return 1;
+
+ return work_done;
}
/**
struct sk_buff *skb, struct sk_buff *rx_gather[],
unsigned int gather_idx)
{
- rq->offload_pkts++;
skb_reset_mac_header(skb);
skb_reset_network_header(skb);
skb_reset_transport_header(skb);
struct port_info *pi;
skb_pull(skb, sizeof(*p) + pad);
- skb->dev->last_rx = jiffies;
skb->protocol = eth_type_trans(skb, adap->port[p->iff]);
+ skb->dev->last_rx = jiffies;
pi = netdev_priv(skb->dev);
- if (pi->rx_csum_offload && p->csum_valid && p->csum == 0xffff &&
+ if (pi->rx_csum_offload && p->csum_valid && p->csum == htons(0xffff) &&
!p->fragment) {
rspq_to_qset(rq)->port_stats[SGE_PSTAT_RX_CSUM_GOOD]++;
skb->ip_summed = CHECKSUM_UNNECESSARY;
netif_rx(skb);
}
-#define SKB_DATA_SIZE 128
-
-static void skb_data_init(struct sk_buff *skb, struct sge_fl_page *p,
- unsigned int len)
-{
- skb->len = len;
- if (len <= SKB_DATA_SIZE) {
- memcpy(skb->data, p->va, len);
- skb->tail += len;
- put_page(p->frag.page);
- } else {
- memcpy(skb->data, p->va, SKB_DATA_SIZE);
- skb_shinfo(skb)->frags[0].page = p->frag.page;
- skb_shinfo(skb)->frags[0].page_offset =
- p->frag.page_offset + SKB_DATA_SIZE;
- skb_shinfo(skb)->frags[0].size = len - SKB_DATA_SIZE;
- skb_shinfo(skb)->nr_frags = 1;
- skb->data_len = len - SKB_DATA_SIZE;
- skb->tail += SKB_DATA_SIZE;
- skb->truesize += skb->data_len;
- }
-}
-
-/**
-* get_packet - return the next ingress packet buffer from a free list
-* @adap: the adapter that received the packet
-* @fl: the SGE free list holding the packet
-* @len: the packet length including any SGE padding
-* @drop_thres: # of remaining buffers before we start dropping packets
-*
-* Get the next packet from a free list and complete setup of the
-* sk_buff. If the packet is small we make a copy and recycle the
-* original buffer, otherwise we use the original buffer itself. If a
-* positive drop threshold is supplied packets are dropped and their
-* buffers recycled if (a) the number of remaining buffers is under the
-* threshold and the packet is too big to copy, or (b) the packet should
-* be copied but there is no memory for the copy.
-*/
-static struct sk_buff *get_packet(struct adapter *adap, struct sge_fl *fl,
- unsigned int len, unsigned int drop_thres)
-{
- struct sk_buff *skb = NULL;
- struct rx_sw_desc *sd = &fl->sdesc[fl->cidx];
-
- prefetch(sd->t.skb->data);
-
- if (len <= SGE_RX_COPY_THRES) {
- skb = alloc_skb(len, GFP_ATOMIC);
- if (likely(skb != NULL)) {
- struct rx_desc *d = &fl->desc[fl->cidx];
- dma_addr_t mapping =
- (dma_addr_t)((u64) be32_to_cpu(d->addr_hi) << 32 |
- be32_to_cpu(d->addr_lo));
-
- __skb_put(skb, len);
- pci_dma_sync_single_for_cpu(adap->pdev, mapping, len,
- PCI_DMA_FROMDEVICE);
- memcpy(skb->data, sd->t.skb->data, len);
- pci_dma_sync_single_for_device(adap->pdev, mapping, len,
- PCI_DMA_FROMDEVICE);
- } else if (!drop_thres)
- goto use_orig_buf;
-recycle:
- recycle_rx_buf(adap, fl, fl->cidx);
- return skb;
- }
-
- if (unlikely(fl->credits < drop_thres))
- goto recycle;
-
-use_orig_buf:
- pci_unmap_single(adap->pdev, pci_unmap_addr(sd, dma_addr),
- fl->buf_size, PCI_DMA_FROMDEVICE);
- skb = sd->t.skb;
- skb_put(skb, len);
- __refill_fl(adap, fl);
- return skb;
-}
-
/**
* handle_rsp_cntrl_info - handles control information in a response
* @qs: the queue set corresponding to the response
int eth, ethpad = 2;
struct sk_buff *skb = NULL;
u32 len, flags = ntohl(r->flags);
- u32 rss_hi = *(const u32 *)r, rss_lo = r->rss_hdr.rss_hash_val;
+ __be32 rss_hi = *(const __be32 *)r, rss_lo = r->rss_hdr.rss_hash_val;
eth = r->rss_hdr.opcode == CPL_RX_PKT;
} else if (flags & F_RSPD_IMM_DATA_VALID) {
skb = get_imm_packet(r);
if (unlikely(!skb)) {
- no_mem:
+no_mem:
q->next_holdoff = NOMEM_INTR_DELAY;
q->nomem++;
/* consume one credit since we tried */
q->imm_data++;
ethpad = 0;
} else if ((len = ntohl(r->len_cq)) != 0) {
- struct sge_fl *fl =
- (len & F_RSPD_FLQ) ? &qs->fl[1] : &qs->fl[0];
-
- if (fl->buf_size == RX_PAGE_SIZE) {
- struct rx_sw_desc *sd = &fl->sdesc[fl->cidx];
- struct sge_fl_page *p = &sd->t.page;
+ struct sge_fl *fl;
- prefetch(p->va);
- prefetch(p->va + L1_CACHE_BYTES);
+ fl = (len & F_RSPD_FLQ) ? &qs->fl[1] : &qs->fl[0];
+ if (fl->use_pages) {
+ void *addr = fl->sdesc[fl->cidx].pg_chunk.va;
+ prefetch(addr);
+#if L1_CACHE_BYTES < 128
+ prefetch(addr + L1_CACHE_BYTES);
+#endif
__refill_fl(adap, fl);
- pci_unmap_single(adap->pdev,
- pci_unmap_addr(sd, dma_addr),
- fl->buf_size,
- PCI_DMA_FROMDEVICE);
-
- if (eth) {
- if (unlikely(fl->credits <
- SGE_RX_DROP_THRES))
- goto eth_recycle;
-
- skb = alloc_skb(SKB_DATA_SIZE,
- GFP_ATOMIC);
- if (unlikely(!skb)) {
-eth_recycle:
- q->rx_drops++;
- recycle_rx_buf(adap, fl,
- fl->cidx);
- goto eth_done;
- }
- } else {
- skb = alloc_skb(SKB_DATA_SIZE,
- GFP_ATOMIC);
- if (unlikely(!skb))
- goto no_mem;
- }
-
- skb_data_init(skb, p, G_RSPD_LEN(len));
-eth_done:
- fl->credits--;
- q->eth_pkts++;
- } else {
- fl->credits--;
+ skb = get_packet_pg(adap, fl, G_RSPD_LEN(len),
+ eth ? SGE_RX_DROP_THRES : 0);
+ } else
skb = get_packet(adap, fl, G_RSPD_LEN(len),
eth ? SGE_RX_DROP_THRES : 0);
- }
+ if (unlikely(!skb)) {
+ if (!eth)
+ goto no_mem;
+ q->rx_drops++;
+ } else if (unlikely(r->rss_hdr.opcode == CPL_TRACE_PKT))
+ __skb_pull(skb, 2);
if (++fl->cidx == fl->size)
fl->cidx = 0;
q->credits = 0;
}
- if (skb) {
- /* Preserve the RSS info in csum & priority */
- skb->csum = rss_hi;
- skb->priority = rss_lo;
-
+ if (likely(skb != NULL)) {
if (eth)
rx_eth(adap, q, skb, ethpad);
else {
- if (unlikely(r->rss_hdr.opcode ==
- CPL_TRACE_PKT))
- __skb_pull(skb, ethpad);
-
- ngathered = rx_offload(&adap->tdev, q,
- skb, offload_skbs,
+ q->offload_pkts++;
+ /* Preserve the RSS info in csum & priority */
+ skb->csum = rss_hi;
+ skb->priority = rss_lo;
+ ngathered = rx_offload(&adap->tdev, q, skb,
+ offload_skbs,
ngathered);
}
}
/**
* napi_rx_handler - the NAPI handler for Rx processing
- * @dev: the net device
+ * @napi: the napi instance
* @budget: how many packets we can process in this round
*
* Handler for new data events when using NAPI.
*/
-static int napi_rx_handler(struct net_device *dev, int *budget)
+static int napi_rx_handler(struct napi_struct *napi, int budget)
{
- struct adapter *adap = dev->priv;
- struct sge_qset *qs = dev2qset(dev);
- int effective_budget = min(*budget, dev->quota);
-
- int work_done = process_responses(adap, qs, effective_budget);
- *budget -= work_done;
- dev->quota -= work_done;
+ struct sge_qset *qs = container_of(napi, struct sge_qset, napi);
+ struct adapter *adap = qs->adap;
+ int work_done = process_responses(adap, qs, budget);
- if (work_done >= effective_budget)
- return 1;
-
- netif_rx_complete(dev);
+ if (likely(work_done < budget)) {
+ napi_complete(napi);
- /*
- * Because we don't atomically flush the following write it is
- * possible that in very rare cases it can reach the device in a way
- * that races with a new response being written plus an error interrupt
- * causing the NAPI interrupt handler below to return unhandled status
- * to the OS. To protect against this would require flushing the write
- * and doing both the write and the flush with interrupts off. Way too
- * expensive and unjustifiable given the rarity of the race.
- *
- * The race cannot happen at all with MSI-X.
- */
- t3_write_reg(adap, A_SG_GTS, V_RSPQ(qs->rspq.cntxt_id) |
- V_NEWTIMER(qs->rspq.next_holdoff) |
- V_NEWINDEX(qs->rspq.cidx));
- return 0;
+ /*
+ * Because we don't atomically flush the following
+ * write it is possible that in very rare cases it can
+ * reach the device in a way that races with a new
+ * response being written plus an error interrupt
+ * causing the NAPI interrupt handler below to return
+ * unhandled status to the OS. To protect against
+ * this would require flushing the write and doing
+ * both the write and the flush with interrupts off.
+ * Way too expensive and unjustifiable given the
+ * rarity of the race.
+ *
+ * The race cannot happen at all with MSI-X.
+ */
+ t3_write_reg(adap, A_SG_GTS, V_RSPQ(qs->rspq.cntxt_id) |
+ V_NEWTIMER(qs->rspq.next_holdoff) |
+ V_NEWINDEX(qs->rspq.cidx));
+ }
+ return work_done;
}
/*
* Returns true if the device is already scheduled for polling.
*/
-static inline int napi_is_scheduled(struct net_device *dev)
+static inline int napi_is_scheduled(struct napi_struct *napi)
{
- return test_bit(__LINK_STATE_RX_SCHED, &dev->state);
+ return test_bit(NAPI_STATE_SCHED, &napi->state);
}
/**
V_NEWTIMER(q->holdoff_tmr) | V_NEWINDEX(q->cidx));
return 0;
}
- if (likely(__netif_rx_schedule_prep(qs->netdev)))
- __netif_rx_schedule(qs->netdev);
+ napi_schedule(&qs->napi);
return 1;
}
irqreturn_t t3_sge_intr_msix(int irq, void *cookie)
{
struct sge_qset *qs = cookie;
- struct adapter *adap = qs->netdev->priv;
+ struct adapter *adap = qs->adap;
struct sge_rspq *q = &qs->rspq;
spin_lock(&q->lock);
* The MSI-X interrupt handler for an SGE response queue for the NAPI case
* (i.e., response queue serviced by NAPI polling).
*/
-irqreturn_t t3_sge_intr_msix_napi(int irq, void *cookie)
+static irqreturn_t t3_sge_intr_msix_napi(int irq, void *cookie)
{
struct sge_qset *qs = cookie;
- struct adapter *adap = qs->netdev->priv;
struct sge_rspq *q = &qs->rspq;
spin_lock(&q->lock);
- BUG_ON(napi_is_scheduled(qs->netdev));
- if (handle_responses(adap, q) < 0)
+ if (handle_responses(qs->adap, q) < 0)
q->unhandled_irqs++;
spin_unlock(&q->lock);
return IRQ_HANDLED;
return IRQ_HANDLED;
}
-static int rspq_check_napi(struct net_device *dev, struct sge_rspq *q)
+static int rspq_check_napi(struct sge_qset *qs)
{
- if (!napi_is_scheduled(dev) && is_new_response(&q->desc[q->cidx], q)) {
- if (likely(__netif_rx_schedule_prep(dev)))
- __netif_rx_schedule(dev);
+ struct sge_rspq *q = &qs->rspq;
+
+ if (!napi_is_scheduled(&qs->napi) &&
+ is_new_response(&q->desc[q->cidx], q)) {
+ napi_schedule(&qs->napi);
return 1;
}
return 0;
* one SGE response queue per port in this mode and protect all response
* queues with queue 0's lock.
*/
-irqreturn_t t3_intr_msi_napi(int irq, void *cookie)
+static irqreturn_t t3_intr_msi_napi(int irq, void *cookie)
{
int new_packets;
struct adapter *adap = cookie;
spin_lock(&q->lock);
- new_packets = rspq_check_napi(adap->sge.qs[0].netdev, q);
+ new_packets = rspq_check_napi(&adap->sge.qs[0]);
if (adap->params.nports == 2)
- new_packets += rspq_check_napi(adap->sge.qs[1].netdev,
- &adap->sge.qs[1].rspq);
+ new_packets += rspq_check_napi(&adap->sge.qs[1]);
if (!new_packets && t3_slow_intr_handler(adap) == 0)
q->unhandled_irqs++;
static irqreturn_t t3b_intr_napi(int irq, void *cookie)
{
u32 map;
- struct net_device *dev;
struct adapter *adap = cookie;
- struct sge_rspq *q0 = &adap->sge.qs[0].rspq;
+ struct sge_qset *qs0 = &adap->sge.qs[0];
+ struct sge_rspq *q0 = &qs0->rspq;
t3_write_reg(adap, A_PL_CLI, 0);
map = t3_read_reg(adap, A_SG_DATA_INTR);
if (unlikely(map & F_ERRINTR))
t3_slow_intr_handler(adap);
- if (likely(map & 1)) {
- dev = adap->sge.qs[0].netdev;
-
- if (likely(__netif_rx_schedule_prep(dev)))
- __netif_rx_schedule(dev);
- }
- if (map & 2) {
- dev = adap->sge.qs[1].netdev;
+ if (likely(map & 1))
+ napi_schedule(&qs0->napi);
- if (likely(__netif_rx_schedule_prep(dev)))
- __netif_rx_schedule(dev);
- }
+ if (map & 2)
+ napi_schedule(&adap->sge.qs[1].napi);
spin_unlock(&q0->lock);
return IRQ_HANDLED;
* (MSI-X, MSI, or legacy) and whether NAPI will be used to service the
* response queues.
*/
-intr_handler_t t3_intr_handler(struct adapter *adap, int polling)
+irq_handler_t t3_intr_handler(struct adapter *adap, int polling)
{
if (adap->flags & USING_MSIX)
return polling ? t3_sge_intr_msix_napi : t3_sge_intr_msix;
return t3_intr;
}
+#define SGE_PARERR (F_CPPARITYERROR | F_OCPARITYERROR | F_RCPARITYERROR | \
+ F_IRPARITYERROR | V_ITPARITYERROR(M_ITPARITYERROR) | \
+ V_FLPARITYERROR(M_FLPARITYERROR) | F_LODRBPARITYERROR | \
+ F_HIDRBPARITYERROR | F_LORCQPARITYERROR | \
+ F_HIRCQPARITYERROR)
+#define SGE_FRAMINGERR (F_UC_REQ_FRAMINGERROR | F_R_REQ_FRAMINGERROR)
+#define SGE_FATALERR (SGE_PARERR | SGE_FRAMINGERR | F_RSPQCREDITOVERFOW | \
+ F_RSPQDISABLED)
+
/**
* t3_sge_err_intr_handler - SGE async event interrupt handler
* @adapter: the adapter
{
unsigned int v, status = t3_read_reg(adapter, A_SG_INT_CAUSE);
+ if (status & SGE_PARERR)
+ CH_ALERT(adapter, "SGE parity error (0x%x)\n",
+ status & SGE_PARERR);
+ if (status & SGE_FRAMINGERR)
+ CH_ALERT(adapter, "SGE framing error (0x%x)\n",
+ status & SGE_FRAMINGERR);
+
if (status & F_RSPQCREDITOVERFOW)
CH_ALERT(adapter, "SGE response queue credit overflow\n");
"(0x%x)\n", (v >> S_RSPQ0DISABLED) & 0xff);
}
+ if (status & (F_HIPIODRBDROPERR | F_LOPIODRBDROPERR))
+ CH_ALERT(adapter, "SGE dropped %s priority doorbell\n",
+ status & F_HIPIODRBDROPERR ? "high" : "lo");
+
t3_write_reg(adapter, A_SG_INT_CAUSE, status);
- if (status & (F_RSPQCREDITOVERFOW | F_RSPQDISABLED))
+ if (status & SGE_FATALERR)
t3_fatal_err(adapter);
}
{
spinlock_t *lock;
struct sge_qset *qs = (struct sge_qset *)data;
- struct adapter *adap = qs->netdev->priv;
+ struct adapter *adap = qs->adap;
if (spin_trylock(&qs->txq[TXQ_ETH].lock)) {
reclaim_completed_tx(adap, &qs->txq[TXQ_ETH]);
spin_unlock(&qs->txq[TXQ_OFLD].lock);
}
lock = (adap->flags & USING_MSIX) ? &qs->rspq.lock :
- &adap->sge.qs[0].rspq.lock;
+ &adap->sge.qs[0].rspq.lock;
if (spin_trylock_irq(lock)) {
- if (!napi_is_scheduled(qs->netdev)) {
+ if (!napi_is_scheduled(&qs->napi)) {
u32 status = t3_read_reg(adap, A_SG_RSPQ_FL_STATUS);
if (qs->fl[0].credits < qs->fl[0].size)
*/
void t3_update_qset_coalesce(struct sge_qset *qs, const struct qset_params *p)
{
- if (!qs->netdev)
- return;
-
qs->rspq.holdoff_tmr = max(p->coalesce_usecs * 10, 1U);/* can't be 0 */
qs->rspq.polling = p->polling;
- qs->netdev->poll = p->polling ? napi_rx_handler : ofld_poll;
+ qs->napi.poll = p->polling ? napi_rx_handler : ofld_poll;
}
/**
*/
int t3_sge_alloc_qset(struct adapter *adapter, unsigned int id, int nports,
int irq_vec_idx, const struct qset_params *p,
- int ntxq, struct net_device *netdev)
+ int ntxq, struct net_device *dev)
{
int i, ret = -ENOMEM;
struct sge_qset *q = &adapter->sge.qs[id];
q->txq[TXQ_ETH].stop_thres = nports *
flits_to_desc(sgl_len(MAX_SKB_FRAGS + 1) + 3);
- if (!is_offload(adapter)) {
-#ifdef USE_RX_PAGE
- q->fl[0].buf_size = RX_PAGE_SIZE;
-#else
- q->fl[0].buf_size = SGE_RX_SM_BUF_SIZE + 2 +
- sizeof(struct cpl_rx_pkt);
-#endif
- q->fl[1].buf_size = MAX_FRAME_SIZE + 2 +
- sizeof(struct cpl_rx_pkt);
- } else {
-#ifdef USE_RX_PAGE
- q->fl[0].buf_size = RX_PAGE_SIZE;
+#if FL0_PG_CHUNK_SIZE > 0
+ q->fl[0].buf_size = FL0_PG_CHUNK_SIZE;
#else
- q->fl[0].buf_size = SGE_RX_SM_BUF_SIZE +
- sizeof(struct cpl_rx_data);
+ q->fl[0].buf_size = SGE_RX_SM_BUF_SIZE + sizeof(struct cpl_rx_data);
#endif
- q->fl[1].buf_size = (16 * 1024) -
- SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
- }
+ q->fl[0].use_pages = FL0_PG_CHUNK_SIZE > 0;
+ q->fl[1].buf_size = is_offload(adapter) ?
+ (16 * 1024) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) :
+ MAX_FRAME_SIZE + 2 + sizeof(struct cpl_rx_pkt);
spin_lock(&adapter->sge.reg_lock);
}
spin_unlock(&adapter->sge.reg_lock);
- q->netdev = netdev;
- t3_update_qset_coalesce(q, p);
- /*
- * We use atalk_ptr as a backpointer to a qset. In case a device is
- * associated with multiple queue sets only the first one sets
- * atalk_ptr.
- */
- if (netdev->atalk_ptr == NULL)
- netdev->atalk_ptr = q;
+ q->adap = adapter;
+ q->netdev = dev;
+ t3_update_qset_coalesce(q, p);
refill_fl(adapter, &q->fl[0], q->fl[0].size, GFP_KERNEL);
refill_fl(adapter, &q->fl[1], q->fl[1].size, GFP_KERNEL);
unsigned int ctrl, ups = ffs(pci_resource_len(adap->pdev, 2) >> 12);
ctrl = F_DROPPKT | V_PKTSHIFT(2) | F_FLMODE | F_AVOIDCQOVFL |
- F_CQCRDTCTRL |
+ F_CQCRDTCTRL | F_CONGMODE | F_TNLFLMODE | F_FATLPERREN |
V_HOSTPAGESIZE(PAGE_SHIFT - 11) | F_BIGENDIANINGRESS |
V_USERSPACESIZE(ups ? ups - 1 : 0) | F_ISCSICOALESCING;
#if SGE_NUM_GENBITS == 1
if (adap->params.rev > 0) {
if (!(adap->flags & (USING_MSIX | USING_MSI)))
ctrl |= F_ONEINTMULTQ | F_OPTONEINTMULTQ;
- ctrl |= F_CQCRDTCTRL | F_AVOIDCQOVFL;
}
t3_write_reg(adap, A_SG_CONTROL, ctrl);
t3_write_reg(adap, A_SG_EGR_RCQ_DRB_THRSH, V_HIRCQDRBTHRSH(512) |
t3_write_reg(adap, A_SG_TIMER_TICK, core_ticks_per_usec(adap) / 10);
t3_write_reg(adap, A_SG_CMDQ_CREDIT_TH, V_THRESHOLD(32) |
V_TIMEOUT(200 * core_ticks_per_usec(adap)));
- t3_write_reg(adap, A_SG_HI_DRB_HI_THRSH, 1000);
+ t3_write_reg(adap, A_SG_HI_DRB_HI_THRSH,
+ adap->params.rev < T3_REV_C ? 1000 : 500);
t3_write_reg(adap, A_SG_HI_DRB_LO_THRSH, 256);
t3_write_reg(adap, A_SG_LO_DRB_HI_THRSH, 1000);
t3_write_reg(adap, A_SG_LO_DRB_LO_THRSH, 256);
* defaults for the assorted SGE parameters, which admins can change until
* they are used to initialize the SGE.
*/
-void __devinit t3_sge_prep(struct adapter *adap, struct sge_params *p)
+void t3_sge_prep(struct adapter *adap, struct sge_params *p)
{
int i;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff