diff options
author | Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> | 2019-11-07 21:29:07 +0530 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2019-11-07 10:41:59 -0800 |
commit | 2d0cb84dd9731d5d0e1326f0e10be893cb2fe698 (patch) | |
tree | b00989f1360694e69f3cde9c750ba7c9e6a1f33e /drivers/net/ethernet/chelsio | |
parent | b1396c2bd67556b8d9a31ea2b26e133cb6c802d3 (diff) | |
download | linux-2d0cb84dd9731d5d0e1326f0e10be893cb2fe698.tar.bz2 |
cxgb4: add ETHOFLD hardware queue support
Add support for configuring and managing ETHOFLD hardware queues.
Keep the queue count and MSI-X allocation scheme same as NIC queues.
ETHOFLD hardware queues are dynamically allocated/destroyed as
TC-MQPRIO Qdisc offload is enabled/disabled on the corresponding
interface, respectively.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio')
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h | 3 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c | 21 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 20 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 53 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 72 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c | 168 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h | 10 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c | 40 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/sge.c | 95 |
9 files changed, 419 insertions, 63 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h index 69746696a929..f5be3ee1bdb4 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h @@ -325,6 +325,9 @@ enum cudbg_qdesc_qtype { CUDBG_QTYPE_CRYPTO_FLQ, CUDBG_QTYPE_TLS_RXQ, CUDBG_QTYPE_TLS_FLQ, + CUDBG_QTYPE_ETHOFLD_TXQ, + CUDBG_QTYPE_ETHOFLD_RXQ, + CUDBG_QTYPE_ETHOFLD_FLQ, CUDBG_QTYPE_MAX, }; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c index c2e92786608b..c9d3dea4413e 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c @@ -2930,6 +2930,10 @@ void cudbg_fill_qdesc_num_and_size(const struct adapter *padap, tot_size += CXGB4_ULD_MAX * MAX_ULD_QSETS * SGE_MAX_IQ_SIZE * MAX_RXQ_DESC_SIZE; + /* ETHOFLD TXQ, RXQ, and FLQ */ + tot_entries += MAX_OFLD_QSETS * 3; + tot_size += MAX_OFLD_QSETS * MAX_TXQ_ENTRIES * MAX_TXQ_DESC_SIZE; + tot_size += sizeof(struct cudbg_ver_hdr) + sizeof(struct cudbg_qdesc_info) + sizeof(struct cudbg_qdesc_entry) * tot_entries; @@ -3087,6 +3091,23 @@ int cudbg_collect_qdesc(struct cudbg_init *pdbg_init, } } + /* ETHOFLD TXQ */ + if (s->eohw_txq) + for (i = 0; i < s->eoqsets; i++) + QDESC_GET_TXQ(&s->eohw_txq[i].q, + CUDBG_QTYPE_ETHOFLD_TXQ, out); + + /* ETHOFLD RXQ and FLQ */ + if (s->eohw_rxq) { + for (i = 0; i < s->eoqsets; i++) + QDESC_GET_RXQ(&s->eohw_rxq[i].rspq, + CUDBG_QTYPE_ETHOFLD_RXQ, out); + + for (i = 0; i < s->eoqsets; i++) + QDESC_GET_FLQ(&s->eohw_rxq[i].fl, + CUDBG_QTYPE_ETHOFLD_FLQ, out); + } + out_unlock: mutex_unlock(&uld_mutex); diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 04a81276e9c8..d9d92dc0d0c5 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -835,6 +835,16 @@ struct sge_eosw_txq { struct tasklet_struct qresume_tsk; /* Restarts the queue */ }; +struct sge_eohw_txq { + spinlock_t lock; /* Per queue lock */ + struct sge_txq q; /* HW Txq */ + struct adapter *adap; /* Backpointer to adapter */ + unsigned long tso; /* # of TSO requests */ + unsigned long tx_cso; /* # of Tx checksum offloads */ + unsigned long vlan_ins; /* # of Tx VLAN insertions */ + unsigned long mapping_err; /* # of I/O MMU packet mapping errors */ +}; + struct sge { struct sge_eth_txq ethtxq[MAX_ETH_QSETS]; struct sge_eth_txq ptptxq; @@ -848,11 +858,16 @@ struct sge { struct sge_rspq intrq ____cacheline_aligned_in_smp; spinlock_t intrq_lock; + struct sge_eohw_txq *eohw_txq; + struct sge_ofld_rxq *eohw_rxq; + u16 max_ethqsets; /* # of available Ethernet queue sets */ u16 ethqsets; /* # of active Ethernet queue sets */ u16 ethtxq_rover; /* Tx queue to clean up next */ u16 ofldqsets; /* # of active ofld queue sets */ u16 nqs_per_uld; /* # of Rx queues per ULD */ + u16 eoqsets; /* # of ETHOFLD queues */ + u16 timer_val[SGE_NTIMERS]; u8 counter_val[SGE_NCOUNTERS]; u16 dbqtimer_tick; @@ -1466,6 +1481,9 @@ int t4_sge_mod_ctrl_txq(struct adapter *adap, unsigned int eqid, int t4_sge_alloc_uld_txq(struct adapter *adap, struct sge_uld_txq *txq, struct net_device *dev, unsigned int iqid, unsigned int uld_type); +int t4_sge_alloc_ethofld_txq(struct adapter *adap, struct sge_eohw_txq *txq, + struct net_device *dev, u32 iqid); +void t4_sge_free_ethofld_txq(struct adapter *adap, struct sge_eohw_txq *txq); irqreturn_t t4_sge_intr_msix(int irq, void *cookie); int t4_sge_init(struct adapter *adap); void t4_sge_start(struct adapter *adap); @@ -1995,4 +2013,6 @@ int cxgb4_get_msix_idx_from_bmap(struct adapter *adap); void cxgb4_free_msix_idx_in_bmap(struct adapter *adap, u32 msix_idx); int cxgb_open(struct net_device *dev); int cxgb_close(struct net_device *dev); +void cxgb4_enable_rx(struct adapter *adap, struct sge_rspq *q); +void cxgb4_quiesce_rx(struct sge_rspq *q); #endif /* __CXGB4_H__ */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index ae6a47dd7dc9..a13b03f771cc 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -2658,6 +2658,7 @@ static int sge_qinfo_uld_ciq_entries(const struct adapter *adap, int uld) static int sge_qinfo_show(struct seq_file *seq, void *v) { + int eth_entries, ctrl_entries, eo_entries = 0; int uld_rxq_entries[CXGB4_ULD_MAX] = { 0 }; int uld_ciq_entries[CXGB4_ULD_MAX] = { 0 }; int uld_txq_entries[CXGB4_TX_MAX] = { 0 }; @@ -2665,11 +2666,12 @@ static int sge_qinfo_show(struct seq_file *seq, void *v) const struct sge_uld_rxq_info *urxq_info; struct adapter *adap = seq->private; int i, n, r = (uintptr_t)v - 1; - int eth_entries, ctrl_entries; struct sge *s = &adap->sge; eth_entries = DIV_ROUND_UP(adap->sge.ethqsets, 4); ctrl_entries = DIV_ROUND_UP(MAX_CTRL_QUEUES, 4); + if (adap->sge.eohw_txq) + eo_entries = DIV_ROUND_UP(adap->sge.eoqsets, 4); mutex_lock(&uld_mutex); if (s->uld_txq_info) @@ -2761,6 +2763,54 @@ do { \ } r -= eth_entries; + if (r < eo_entries) { + int base_qset = r * 4; + const struct sge_ofld_rxq *rx = &s->eohw_rxq[base_qset]; + const struct sge_eohw_txq *tx = &s->eohw_txq[base_qset]; + + n = min(4, s->eoqsets - 4 * r); + + S("QType:", "ETHOFLD"); + S("Interface:", + rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A"); + T("TxQ ID:", q.cntxt_id); + T("TxQ size:", q.size); + T("TxQ inuse:", q.in_use); + T("TxQ CIDX:", q.cidx); + T("TxQ PIDX:", q.pidx); + R("RspQ ID:", rspq.abs_id); + R("RspQ size:", rspq.size); + R("RspQE size:", rspq.iqe_len); + R("RspQ CIDX:", rspq.cidx); + R("RspQ Gen:", rspq.gen); + S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq)); + S3("u", "Intr pktcnt:", s->counter_val[rx[i].rspq.pktcnt_idx]); + R("FL ID:", fl.cntxt_id); + S3("u", "FL size:", rx->fl.size ? rx->fl.size - 8 : 0); + R("FL pend:", fl.pend_cred); + R("FL avail:", fl.avail); + R("FL PIDX:", fl.pidx); + R("FL CIDX:", fl.cidx); + RL("RxPackets:", stats.pkts); + RL("RxImm:", stats.imm); + RL("RxAN", stats.an); + RL("RxNoMem", stats.nomem); + TL("TSO:", tso); + TL("TxCSO:", tx_cso); + TL("VLANins:", vlan_ins); + TL("TxQFull:", q.stops); + TL("TxQRestarts:", q.restarts); + TL("TxMapErr:", mapping_err); + RL("FLAllocErr:", fl.alloc_failed); + RL("FLLrgAlcErr:", fl.large_alloc_failed); + RL("FLMapErr:", fl.mapping_err); + RL("FLLow:", fl.low); + RL("FLStarving:", fl.starving); + + goto unlock; + } + + r -= eo_entries; if (r < uld_txq_entries[CXGB4_TX_OFLD]) { const struct sge_uld_txq *tx; @@ -3007,6 +3057,7 @@ static int sge_queue_entries(const struct adapter *adap) mutex_unlock(&uld_mutex); return DIV_ROUND_UP(adap->sge.ethqsets, 4) + + (adap->sge.eohw_txq ? DIV_ROUND_UP(adap->sge.eoqsets, 4) : 0) + tot_uld_entries + DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1; } diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index fe3ea60843c3..b5148c57e8bf 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -880,6 +880,12 @@ static unsigned int rxq_to_chan(const struct sge *p, unsigned int qid) return netdev2pinfo(p->ingr_map[qid]->netdev)->tx_chan; } +void cxgb4_quiesce_rx(struct sge_rspq *q) +{ + if (q->handler) + napi_disable(&q->napi); +} + /* * Wait until all NAPI handlers are descheduled. */ @@ -890,8 +896,10 @@ static void quiesce_rx(struct adapter *adap) for (i = 0; i < adap->sge.ingr_sz; i++) { struct sge_rspq *q = adap->sge.ingr_map[i]; - if (q && q->handler) - napi_disable(&q->napi); + if (!q) + continue; + + cxgb4_quiesce_rx(q); } } @@ -913,6 +921,17 @@ static void disable_interrupts(struct adapter *adap) } } +void cxgb4_enable_rx(struct adapter *adap, struct sge_rspq *q) +{ + if (q->handler) + napi_enable(&q->napi); + + /* 0-increment GTS to start the timer and enable interrupts */ + t4_write_reg(adap, MYPF_REG(SGE_PF_GTS_A), + SEINTARM_V(q->intr_params) | + INGRESSQID_V(q->cntxt_id)); +} + /* * Enable NAPI scheduling and interrupt generation for all Rx queues. */ @@ -925,13 +944,8 @@ static void enable_rx(struct adapter *adap) if (!q) continue; - if (q->handler) - napi_enable(&q->napi); - /* 0-increment GTS to start the timer and enable interrupts */ - t4_write_reg(adap, MYPF_REG(SGE_PF_GTS_A), - SEINTARM_V(q->intr_params) | - INGRESSQID_V(q->cntxt_id)); + cxgb4_enable_rx(adap, q); } } @@ -5360,6 +5374,19 @@ static int cfg_queues(struct adapter *adap) avail_qsets -= num_ulds * s->ofldqsets; } + /* ETHOFLD Queues used for QoS offload should follow same + * allocation scheme as normal Ethernet Queues. + */ + if (is_ethofld(adap)) { + if (avail_qsets < s->max_ethqsets) { + adap->params.ethofld = 0; + s->eoqsets = 0; + } else { + s->eoqsets = s->max_ethqsets; + } + avail_qsets -= s->eoqsets; + } + for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) { struct sge_eth_rxq *r = &s->ethrxq[i]; @@ -5473,9 +5500,9 @@ void cxgb4_free_msix_idx_in_bmap(struct adapter *adap, static int enable_msix(struct adapter *adap) { + u32 eth_need, uld_need = 0, ethofld_need = 0; + u32 ethqsets = 0, ofldqsets = 0, eoqsets = 0; u8 num_uld = 0, nchan = adap->params.nports; - u32 ethqsets = 0, ofldqsets = 0; - u32 eth_need, uld_need = 0; u32 i, want, need, num_vec; struct sge *s = &adap->sge; struct msix_entry *entries; @@ -5499,6 +5526,12 @@ static int enable_msix(struct adapter *adap) need += uld_need; } + if (is_ethofld(adap)) { + want += s->eoqsets; + ethofld_need = eth_need; + need += ethofld_need; + } + want += EXTRA_VECS; need += EXTRA_VECS; @@ -5531,7 +5564,9 @@ static int enable_msix(struct adapter *adap) adap->params.crypto = 0; adap->params.ethofld = 0; s->ofldqsets = 0; + s->eoqsets = 0; uld_need = 0; + ethofld_need = 0; } num_vec = allocated; @@ -5543,10 +5578,12 @@ static int enable_msix(struct adapter *adap) ethqsets = eth_need; if (is_uld(adap)) ofldqsets = nchan; + if (is_ethofld(adap)) + eoqsets = ethofld_need; num_vec -= need; while (num_vec) { - if (num_vec < eth_need || + if (num_vec < eth_need + ethofld_need || ethqsets > s->max_ethqsets) break; @@ -5557,6 +5594,10 @@ static int enable_msix(struct adapter *adap) ethqsets++; num_vec--; + if (ethofld_need) { + eoqsets++; + num_vec--; + } } } @@ -5574,6 +5615,8 @@ static int enable_msix(struct adapter *adap) ethqsets = s->max_ethqsets; if (is_uld(adap)) ofldqsets = s->ofldqsets; + if (is_ethofld(adap)) + eoqsets = s->eoqsets; } if (ethqsets < s->max_ethqsets) { @@ -5586,6 +5629,9 @@ static int enable_msix(struct adapter *adap) s->nqs_per_uld = s->ofldqsets; } + if (is_ethofld(adap)) + s->eoqsets = eoqsets; + /* map for msix */ ret = alloc_msix_info(adap, allocated); if (ret) @@ -5597,8 +5643,8 @@ static int enable_msix(struct adapter *adap) } dev_info(adap->pdev_dev, - "%d MSI-X vectors allocated, nic %d per uld %d\n", - allocated, s->max_ethqsets, s->nqs_per_uld); + "%d MSI-X vectors allocated, nic %d eoqsets %d per uld %d\n", + allocated, s->max_ethqsets, s->eoqsets, s->nqs_per_uld); kfree(entries); return 0; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c index 8cdf3dc1da16..66503ea259e7 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c @@ -120,6 +120,166 @@ static void cxgb4_free_eosw_txq(struct net_device *dev, tasklet_kill(&eosw_txq->qresume_tsk); } +static int cxgb4_mqprio_alloc_hw_resources(struct net_device *dev) +{ + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + struct sge_ofld_rxq *eorxq; + struct sge_eohw_txq *eotxq; + int ret, msix = 0; + u32 i; + + /* Allocate ETHOFLD hardware queue structures if not done already */ + if (!refcount_read(&adap->tc_mqprio->refcnt)) { + adap->sge.eohw_rxq = kcalloc(adap->sge.eoqsets, + sizeof(struct sge_ofld_rxq), + GFP_KERNEL); + if (!adap->sge.eohw_rxq) + return -ENOMEM; + + adap->sge.eohw_txq = kcalloc(adap->sge.eoqsets, + sizeof(struct sge_eohw_txq), + GFP_KERNEL); + if (!adap->sge.eohw_txq) { + kfree(adap->sge.eohw_rxq); + return -ENOMEM; + } + } + + if (!(adap->flags & CXGB4_USING_MSIX)) + msix = -((int)adap->sge.intrq.abs_id + 1); + + for (i = 0; i < pi->nqsets; i++) { + eorxq = &adap->sge.eohw_rxq[pi->first_qset + i]; + eotxq = &adap->sge.eohw_txq[pi->first_qset + i]; + + /* Allocate Rxqs for receiving ETHOFLD Tx completions */ + if (msix >= 0) { + msix = cxgb4_get_msix_idx_from_bmap(adap); + if (msix < 0) + goto out_free_queues; + + eorxq->msix = &adap->msix_info[msix]; + snprintf(eorxq->msix->desc, + sizeof(eorxq->msix->desc), + "%s-eorxq%d", dev->name, i); + } + + init_rspq(adap, &eorxq->rspq, + CXGB4_EOHW_RXQ_DEFAULT_INTR_USEC, + CXGB4_EOHW_RXQ_DEFAULT_PKT_CNT, + CXGB4_EOHW_RXQ_DEFAULT_DESC_NUM, + CXGB4_EOHW_RXQ_DEFAULT_DESC_SIZE); + + eorxq->fl.size = CXGB4_EOHW_FLQ_DEFAULT_DESC_NUM; + + ret = t4_sge_alloc_rxq(adap, &eorxq->rspq, false, + dev, msix, &eorxq->fl, NULL, + NULL, 0); + if (ret) + goto out_free_queues; + + /* Allocate ETHOFLD hardware Txqs */ + eotxq->q.size = CXGB4_EOHW_TXQ_DEFAULT_DESC_NUM; + ret = t4_sge_alloc_ethofld_txq(adap, eotxq, dev, + eorxq->rspq.cntxt_id); + if (ret) + goto out_free_queues; + + /* Allocate IRQs, set IRQ affinity, and start Rx */ + if (adap->flags & CXGB4_USING_MSIX) { + ret = request_irq(eorxq->msix->vec, t4_sge_intr_msix, 0, + eorxq->msix->desc, &eorxq->rspq); + if (ret) + goto out_free_msix; + + cxgb4_set_msix_aff(adap, eorxq->msix->vec, + &eorxq->msix->aff_mask, i); + } + + if (adap->flags & CXGB4_FULL_INIT_DONE) + cxgb4_enable_rx(adap, &eorxq->rspq); + } + + refcount_inc(&adap->tc_mqprio->refcnt); + return 0; + +out_free_msix: + while (i-- > 0) { + eorxq = &adap->sge.eohw_rxq[pi->first_qset + i]; + + if (adap->flags & CXGB4_FULL_INIT_DONE) + cxgb4_quiesce_rx(&eorxq->rspq); + + if (adap->flags & CXGB4_USING_MSIX) { + cxgb4_clear_msix_aff(eorxq->msix->vec, + eorxq->msix->aff_mask); + free_irq(eorxq->msix->vec, &eorxq->rspq); + } + } + +out_free_queues: + for (i = 0; i < pi->nqsets; i++) { + eorxq = &adap->sge.eohw_rxq[pi->first_qset + i]; + eotxq = &adap->sge.eohw_txq[pi->first_qset + i]; + + if (eorxq->rspq.desc) + free_rspq_fl(adap, &eorxq->rspq, &eorxq->fl); + if (eorxq->msix) + cxgb4_free_msix_idx_in_bmap(adap, eorxq->msix->idx); + t4_sge_free_ethofld_txq(adap, eotxq); + } + + kfree(adap->sge.eohw_txq); + kfree(adap->sge.eohw_rxq); + + return ret; +} + +void cxgb4_mqprio_free_hw_resources(struct net_device *dev) +{ + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + struct sge_ofld_rxq *eorxq; + struct sge_eohw_txq *eotxq; + u32 i; + + /* Return if no ETHOFLD structures have been allocated yet */ + if (!refcount_read(&adap->tc_mqprio->refcnt)) + return; + + /* Return if no hardware queues have been allocated */ + if (!adap->sge.eohw_rxq[pi->first_qset].rspq.desc) + return; + + for (i = 0; i < pi->nqsets; i++) { + eorxq = &adap->sge.eohw_rxq[pi->first_qset + i]; + eotxq = &adap->sge.eohw_txq[pi->first_qset + i]; + + /* Device removal path will already disable NAPI + * before unregistering netdevice. So, only disable + * NAPI if we're not in device removal path + */ + if (!(adap->flags & CXGB4_SHUTTING_DOWN)) + cxgb4_quiesce_rx(&eorxq->rspq); + + if (adap->flags & CXGB4_USING_MSIX) { + cxgb4_clear_msix_aff(eorxq->msix->vec, + eorxq->msix->aff_mask); + free_irq(eorxq->msix->vec, &eorxq->rspq); + } + + free_rspq_fl(adap, &eorxq->rspq, &eorxq->fl); + t4_sge_free_ethofld_txq(adap, eotxq); + } + + /* Free up ETHOFLD structures if there are no users */ + if (refcount_dec_and_test(&adap->tc_mqprio->refcnt)) { + kfree(adap->sge.eohw_txq); + kfree(adap->sge.eohw_rxq); + } +} + static int cxgb4_mqprio_enable_offload(struct net_device *dev, struct tc_mqprio_qopt_offload *mqprio) { @@ -131,6 +291,10 @@ static int cxgb4_mqprio_enable_offload(struct net_device *dev, int eotid, ret; u16 i, j; + ret = cxgb4_mqprio_alloc_hw_resources(dev); + if (ret) + return -ENOMEM; + tc_port_mqprio = &adap->tc_mqprio->port_mqprio[pi->port_id]; for (i = 0; i < mqprio->qopt.num_tc; i++) { qoffset = mqprio->qopt.offset[i]; @@ -206,6 +370,7 @@ out_free_eotids: } } + cxgb4_mqprio_free_hw_resources(dev); return ret; } @@ -235,6 +400,8 @@ static void cxgb4_mqprio_disable_offload(struct net_device *dev) } } + cxgb4_mqprio_free_hw_resources(dev); + memset(&tc_port_mqprio->mqprio, 0, sizeof(struct tc_mqprio_qopt_offload)); @@ -310,6 +477,7 @@ int cxgb4_init_tc_mqprio(struct adapter *adap) } adap->tc_mqprio = tc_mqprio; + refcount_set(&adap->tc_mqprio->refcnt, 0); return 0; out_free_ports: diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h index 125664b82236..6491ef91c8a9 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.h @@ -8,6 +8,15 @@ #define CXGB4_EOSW_TXQ_DEFAULT_DESC_NUM 128 +#define CXGB4_EOHW_TXQ_DEFAULT_DESC_NUM 1024 + +#define CXGB4_EOHW_RXQ_DEFAULT_DESC_NUM 1024 +#define CXGB4_EOHW_RXQ_DEFAULT_DESC_SIZE 64 +#define CXGB4_EOHW_RXQ_DEFAULT_INTR_USEC 5 +#define CXGB4_EOHW_RXQ_DEFAULT_PKT_CNT 8 + +#define CXGB4_EOHW_FLQ_DEFAULT_DESC_NUM 72 + enum cxgb4_mqprio_state { CXGB4_MQPRIO_STATE_DISABLED = 0, CXGB4_MQPRIO_STATE_ACTIVE, @@ -20,6 +29,7 @@ struct cxgb4_tc_port_mqprio { }; struct cxgb4_tc_mqprio { + refcount_t refcnt; /* Refcount for adapter-wide resources */ struct cxgb4_tc_port_mqprio *port_mqprio; /* Per port MQPRIO info */ }; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c index 3d9401354af2..cce33d279094 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c @@ -366,33 +366,19 @@ free_msix_queue_irqs_uld(struct adapter *adap, unsigned int uld_type) } } -static void enable_rx(struct adapter *adap, struct sge_rspq *q) -{ - if (!q) - return; - - if (q->handler) - napi_enable(&q->napi); - - /* 0-increment GTS to start the timer and enable interrupts */ - t4_write_reg(adap, MYPF_REG(SGE_PF_GTS_A), - SEINTARM_V(q->intr_params) | - INGRESSQID_V(q->cntxt_id)); -} - -static void quiesce_rx(struct adapter *adap, struct sge_rspq *q) -{ - if (q && q->handler) - napi_disable(&q->napi); -} - static void enable_rx_uld(struct adapter *adap, unsigned int uld_type) { struct sge_uld_rxq_info *rxq_info = adap->sge.uld_rxq_info[uld_type]; int idx; - for_each_uldrxq(rxq_info, idx) - enable_rx(adap, &rxq_info->uldrxq[idx].rspq); + for_each_uldrxq(rxq_info, idx) { + struct sge_rspq *q = &rxq_info->uldrxq[idx].rspq; + + if (!q) + continue; + + cxgb4_enable_rx(adap, q); + } } static void quiesce_rx_uld(struct adapter *adap, unsigned int uld_type) @@ -400,8 +386,14 @@ static void quiesce_rx_uld(struct adapter *adap, unsigned int uld_type) struct sge_uld_rxq_info *rxq_info = adap->sge.uld_rxq_info[uld_type]; int idx; - for_each_uldrxq(rxq_info, idx) - quiesce_rx(adap, &rxq_info->uldrxq[idx].rspq); + for_each_uldrxq(rxq_info, idx) { + struct sge_rspq *q = &rxq_info->uldrxq[idx].rspq; + + if (!q) + continue; + + cxgb4_quiesce_rx(q); + } } static void diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c index ed1418d2364f..3ea2eccde262 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -3982,30 +3982,30 @@ int t4_sge_mod_ctrl_txq(struct adapter *adap, unsigned int eqid, return t4_set_params(adap, adap->mbox, adap->pf, 0, 1, ¶m, &val); } -int t4_sge_alloc_uld_txq(struct adapter *adap, struct sge_uld_txq *txq, - struct net_device *dev, unsigned int iqid, - unsigned int uld_type) +static int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_txq *q, + struct net_device *dev, u32 cmd, u32 iqid) { unsigned int chip_ver = CHELSIO_CHIP_VERSION(adap->params.chip); - int ret, nentries; - struct fw_eq_ofld_cmd c; - struct sge *s = &adap->sge; struct port_info *pi = netdev_priv(dev); - int cmd = FW_EQ_OFLD_CMD; + struct sge *s = &adap->sge; + struct fw_eq_ofld_cmd c; + u32 fb_min, nentries; + int ret; /* Add status entries */ - nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc); - - txq->q.desc = alloc_ring(adap->pdev_dev, txq->q.size, - sizeof(struct tx_desc), sizeof(struct tx_sw_desc), - &txq->q.phys_addr, &txq->q.sdesc, s->stat_len, - NUMA_NO_NODE); - if (!txq->q.desc) + nentries = q->size + s->stat_len / sizeof(struct tx_desc); + q->desc = alloc_ring(adap->pdev_dev, q->size, sizeof(struct tx_desc), + sizeof(struct tx_sw_desc), &q->phys_addr, + &q->sdesc, s->stat_len, NUMA_NO_NODE); + if (!q->desc) return -ENOMEM; + if (chip_ver <= CHELSIO_T5) + fb_min = FETCHBURSTMIN_64B_X; + else + fb_min = FETCHBURSTMIN_64B_T6_X; + memset(&c, 0, sizeof(c)); - if (unlikely(uld_type == CXGB4_TX_CRYPTO)) - cmd = FW_EQ_CTRL_CMD; c.op_to_vfn = htonl(FW_CMD_OP_V(cmd) | FW_CMD_REQUEST_F | FW_CMD_WRITE_F | FW_CMD_EXEC_F | FW_EQ_OFLD_CMD_PFN_V(adap->pf) | @@ -4017,27 +4017,42 @@ int t4_sge_alloc_uld_txq(struct adapter *adap, struct sge_uld_txq *txq, FW_EQ_OFLD_CMD_PCIECHN_V(pi->tx_chan) | FW_EQ_OFLD_CMD_FETCHRO_F | FW_EQ_OFLD_CMD_IQID_V(iqid)); c.dcaen_to_eqsize = - htonl(FW_EQ_OFLD_CMD_FBMIN_V(chip_ver <= CHELSIO_T5 - ? FETCHBURSTMIN_64B_X - : FETCHBURSTMIN_64B_T6_X) | + htonl(FW_EQ_OFLD_CMD_FBMIN_V(fb_min) | FW_EQ_OFLD_CMD_FBMAX_V(FETCHBURSTMAX_512B_X) | FW_EQ_OFLD_CMD_CIDXFTHRESH_V(CIDXFLUSHTHRESH_32_X) | FW_EQ_OFLD_CMD_EQSIZE_V(nentries)); - c.eqaddr = cpu_to_be64(txq->q.phys_addr); + c.eqaddr = cpu_to_be64(q->phys_addr); ret = t4_wr_mbox(adap, adap->mbox, &c, sizeof(c), &c); if (ret) { - kfree(txq->q.sdesc); - txq->q.sdesc = NULL; + kfree(q->sdesc); + q->sdesc = NULL; dma_free_coherent(adap->pdev_dev, nentries * sizeof(struct tx_desc), - txq->q.desc, txq->q.phys_addr); - txq->q.desc = NULL; + q->desc, q->phys_addr); + q->desc = NULL; return ret; } + init_txq(adap, q, FW_EQ_OFLD_CMD_EQID_G(ntohl(c.eqid_pkd))); + return 0; +} + +int t4_sge_alloc_uld_txq(struct adapter *adap, struct sge_uld_txq *txq, + struct net_device *dev, unsigned int iqid, + unsigned int uld_type) +{ + u32 cmd = FW_EQ_OFLD_CMD; + int ret; + + if (unlikely(uld_type == CXGB4_TX_CRYPTO)) + cmd = FW_EQ_CTRL_CMD; + + ret = t4_sge_alloc_ofld_txq(adap, &txq->q, dev, cmd, iqid); + if (ret) + return ret; + txq->q.q_type = CXGB4_TXQ_ULD; - init_txq(adap, &txq->q, FW_EQ_OFLD_CMD_EQID_G(ntohl(c.eqid_pkd))); txq->adap = adap; skb_queue_head_init(&txq->sendq); tasklet_init(&txq->qresume_tsk, restart_ofldq, (unsigned long)txq); @@ -4046,6 +4061,25 @@ int t4_sge_alloc_uld_txq(struct adapter *adap, struct sge_uld_txq *txq, return 0; } +int t4_sge_alloc_ethofld_txq(struct adapter *adap, struct sge_eohw_txq *txq, + struct net_device *dev, u32 iqid) +{ + int ret; + + ret = t4_sge_alloc_ofld_txq(adap, &txq->q, dev, FW_EQ_OFLD_CMD, iqid); + if (ret) + return ret; + + txq->q.q_type = CXGB4_TXQ_ULD; + spin_lock_init(&txq->lock); + txq->adap = adap; + txq->tso = 0; + txq->tx_cso = 0; + txq->vlan_ins = 0; + txq->mapping_err = 0; + return 0; +} + void free_txq(struct adapter *adap, struct sge_txq *q) { struct sge *s = &adap->sge; @@ -4101,6 +4135,17 @@ void t4_free_ofld_rxqs(struct adapter *adap, int n, struct sge_ofld_rxq *q) q->fl.size ? &q->fl : NULL); } +void t4_sge_free_ethofld_txq(struct adapter *adap, struct sge_eohw_txq *txq) +{ + if (txq->q.desc) { + t4_ofld_eq_free(adap, adap->mbox, adap->pf, 0, + txq->q.cntxt_id); + free_tx_desc(adap, &txq->q, txq->q.in_use, false); + kfree(txq->q.sdesc); + free_txq(adap, &txq->q); + } +} + /** * t4_free_sge_resources - free SGE resources * @adap: the adapter |