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Message-Id: <1479467260-6509-1-git-send-email-atul.gupta@chelsio.com>
Date: Fri, 18 Nov 2016 16:37:40 +0530
From: Atul Gupta <atul.gupta@...lsio.com>
To: netdev@...r.kernel.org, linux-scsi@...r.kernel.org,
target-devel@...r.kernel.org, linux-rdma@...r.kernel.org,
linux-crypto@...r.kernel.org
Cc: davem@...emloft.net, nab@...ux-iscsi.org, jejb@...ux.vnet.ibm.com,
martin.petersen@...cle.com, dledford@...hat.com,
herbert@...dor.apana.org.au, leedom@...lsio.com,
nirranjan@...lsio.com, varun@...lsio.com,
swise@...ngridcomputing.com, hariprasad@...lsio.com,
Atul Gupta <atul.gupta@...lsio.com>
Subject: [PATCH net-next] cxgb4: Allocate Tx queues dynamically
From: Hariprasad Shenai <hariprasad@...lsio.com>
Allocate resources dynamically for Upper layer driver's (ULD) like
cxgbit, iw_cxgb4, cxgb4i and chcr. The resources allocated include Tx
queues which are allocated when ULD register with cxgb4 driver and freed
while un-registering. The Tx queues which are shared by ULD shall be
allocated by first registering driver and un-allocated by last
unregistering driver.
Signed-off-by: Atul Gupta <atul.gupta@...lsio.com>
---
drivers/crypto/chelsio/chcr_algo.c | 16 +--
drivers/crypto/chelsio/chcr_core.c | 3 +-
drivers/infiniband/hw/cxgb4/device.c | 1 +
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 19 +++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 12 --
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 64 +++++++----
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c | 114 +++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 17 +++
drivers/net/ethernet/chelsio/cxgb4/sge.c | 121 +++++++++++++++------
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 1 +
drivers/target/iscsi/cxgbit/cxgbit_main.c | 1 +
11 files changed, 287 insertions(+), 82 deletions(-)
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index e4ddb921d7b3..56b153805462 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -592,16 +592,18 @@ static int chcr_aes_cbc_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
static int cxgb4_is_crypto_q_full(struct net_device *dev, unsigned int idx)
{
- int ret = 0;
- struct sge_ofld_txq *q;
struct adapter *adap = netdev2adap(dev);
+ struct sge_uld_txq_info *txq_info =
+ adap->sge.uld_txq_info[CXGB4_TX_CRYPTO];
+ struct sge_uld_txq *txq;
+ int ret = 0;
local_bh_disable();
- q = &adap->sge.ofldtxq[idx];
- spin_lock(&q->sendq.lock);
- if (q->full)
+ txq = &txq_info->uldtxq[idx];
+ spin_lock(&txq->sendq.lock);
+ if (txq->full)
ret = -1;
- spin_unlock(&q->sendq.lock);
+ spin_unlock(&txq->sendq.lock);
local_bh_enable();
return ret;
}
@@ -674,11 +676,11 @@ static int chcr_device_init(struct chcr_context *ctx)
}
u_ctx = ULD_CTX(ctx);
rxq_perchan = u_ctx->lldi.nrxq / u_ctx->lldi.nchan;
- ctx->dev->tx_channel_id = 0;
rxq_idx = ctx->dev->tx_channel_id * rxq_perchan;
rxq_idx += id % rxq_perchan;
spin_lock(&ctx->dev->lock_chcr_dev);
ctx->tx_channel_id = rxq_idx;
+ ctx->dev->tx_channel_id = !ctx->dev->tx_channel_id;
spin_unlock(&ctx->dev->lock_chcr_dev);
}
out:
diff --git a/drivers/crypto/chelsio/chcr_core.c b/drivers/crypto/chelsio/chcr_core.c
index fb5f9bbfa09c..4d7f6700fd7e 100644
--- a/drivers/crypto/chelsio/chcr_core.c
+++ b/drivers/crypto/chelsio/chcr_core.c
@@ -42,6 +42,7 @@ static chcr_handler_func work_handlers[NUM_CPL_CMDS] = {
static struct cxgb4_uld_info chcr_uld_info = {
.name = DRV_MODULE_NAME,
.nrxq = MAX_ULD_QSETS,
+ .ntxq = MAX_ULD_QSETS,
.rxq_size = 1024,
.add = chcr_uld_add,
.state_change = chcr_uld_state_change,
@@ -126,7 +127,7 @@ static int cpl_fw6_pld_handler(struct chcr_dev *dev,
int chcr_send_wr(struct sk_buff *skb)
{
- return cxgb4_ofld_send(skb->dev, skb);
+ return cxgb4_crypto_send(skb->dev, skb);
}
static void *chcr_uld_add(const struct cxgb4_lld_info *lld)
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index 93e3d270a98a..4e5baf4fe15e 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -1481,6 +1481,7 @@ static int c4iw_uld_control(void *handle, enum cxgb4_control control, ...)
static struct cxgb4_uld_info c4iw_uld_info = {
.name = DRV_NAME,
.nrxq = MAX_ULD_QSETS,
+ .ntxq = MAX_ULD_QSETS,
.rxq_size = 511,
.ciq = true,
.lro = false,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 2125903043fb..0bce1bf9ca0f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -635,6 +635,7 @@ struct tx_sw_desc;
struct sge_txq {
unsigned int in_use; /* # of in-use Tx descriptors */
+ unsigned int q_type; /* Q type Eth/Ctrl/Ofld */
unsigned int size; /* # of descriptors */
unsigned int cidx; /* SW consumer index */
unsigned int pidx; /* producer index */
@@ -665,7 +666,7 @@ struct sge_eth_txq { /* state for an SGE Ethernet Tx queue */
unsigned long mapping_err; /* # of I/O MMU packet mapping errors */
} ____cacheline_aligned_in_smp;
-struct sge_ofld_txq { /* state for an SGE offload Tx queue */
+struct sge_uld_txq { /* state for an SGE offload Tx queue */
struct sge_txq q;
struct adapter *adap;
struct sk_buff_head sendq; /* list of backpressured packets */
@@ -693,14 +694,20 @@ struct sge_uld_rxq_info {
u8 uld; /* uld type */
};
+struct sge_uld_txq_info {
+ struct sge_uld_txq *uldtxq; /* Txq's for ULD */
+ atomic_t users; /* num users */
+ u16 ntxq; /* # of egress uld queues */
+};
+
struct sge {
struct sge_eth_txq ethtxq[MAX_ETH_QSETS];
- struct sge_ofld_txq ofldtxq[MAX_OFLD_QSETS];
struct sge_ctrl_txq ctrlq[MAX_CTRL_QUEUES];
struct sge_eth_rxq ethrxq[MAX_ETH_QSETS];
struct sge_rspq fw_evtq ____cacheline_aligned_in_smp;
struct sge_uld_rxq_info **uld_rxq_info;
+ struct sge_uld_txq_info **uld_txq_info;
struct sge_rspq intrq ____cacheline_aligned_in_smp;
spinlock_t intrq_lock;
@@ -1298,8 +1305,9 @@ int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
unsigned int cmplqid);
int t4_sge_mod_ctrl_txq(struct adapter *adap, unsigned int eqid,
unsigned int cmplqid);
-int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
- struct net_device *dev, unsigned int iqid);
+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);
irqreturn_t t4_sge_intr_msix(int irq, void *cookie);
int t4_sge_init(struct adapter *adap);
void t4_sge_start(struct adapter *adap);
@@ -1661,4 +1669,7 @@ int t4_uld_mem_alloc(struct adapter *adap);
void t4_uld_clean_up(struct adapter *adap);
void t4_register_netevent_notifier(void);
void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq, struct sge_fl *fl);
+void free_tx_desc(struct adapter *adap, struct sge_txq *q,
+ unsigned int n, bool unmap);
+void free_txq(struct adapter *adap, struct sge_txq *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 20455d082cb8..acc231293e4d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -2512,18 +2512,6 @@ do { \
RL("FLLow:", fl.low);
RL("FLStarving:", fl.starving);
- } else if (ofld_idx < ofld_entries) {
- const struct sge_ofld_txq *tx =
- &adap->sge.ofldtxq[ofld_idx * 4];
- int n = min(4, adap->sge.ofldqsets - 4 * ofld_idx);
-
- S("QType:", "OFLD-Txq");
- 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);
-
} else if (ctrl_idx < ctrl_entries) {
const struct sge_ctrl_txq *tx = &adap->sge.ctrlq[ctrl_idx * 4];
int n = min(4, adap->params.nports - 4 * ctrl_idx);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index c0cc2ee77be7..449884f8dd67 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -530,15 +530,15 @@ static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp,
txq = q->adap->sge.egr_map[qid - q->adap->sge.egr_start];
txq->restarts++;
- if ((u8 *)txq < (u8 *)q->adap->sge.ofldtxq) {
+ if (txq->q_type == CXGB4_TXQ_ETH) {
struct sge_eth_txq *eq;
eq = container_of(txq, struct sge_eth_txq, q);
netif_tx_wake_queue(eq->txq);
} else {
- struct sge_ofld_txq *oq;
+ struct sge_uld_txq *oq;
- oq = container_of(txq, struct sge_ofld_txq, q);
+ oq = container_of(txq, struct sge_uld_txq, q);
tasklet_schedule(&oq->qresume_tsk);
}
} else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) {
@@ -885,15 +885,6 @@ static int setup_sge_queues(struct adapter *adap)
}
}
- j = s->ofldqsets / adap->params.nports; /* iscsi queues per channel */
- for_each_ofldtxq(s, i) {
- err = t4_sge_alloc_ofld_txq(adap, &s->ofldtxq[i],
- adap->port[i / j],
- s->fw_evtq.cntxt_id);
- if (err)
- goto freeout;
- }
-
for_each_port(adap, i) {
/* Note that cmplqid below is 0 if we don't
* have RDMA queues, and that's the right value.
@@ -1922,8 +1913,18 @@ static void disable_dbs(struct adapter *adap)
for_each_ethrxq(&adap->sge, i)
disable_txq_db(&adap->sge.ethtxq[i].q);
- for_each_ofldtxq(&adap->sge, i)
- disable_txq_db(&adap->sge.ofldtxq[i].q);
+ if (is_offload(adap)) {
+ struct sge_uld_txq_info *txq_info =
+ adap->sge.uld_txq_info[CXGB4_TX_OFLD];
+
+ if (txq_info) {
+ for_each_ofldtxq(&adap->sge, i) {
+ struct sge_uld_txq *txq = &txq_info->uldtxq[i];
+
+ disable_txq_db(&txq->q);
+ }
+ }
+ }
for_each_port(adap, i)
disable_txq_db(&adap->sge.ctrlq[i].q);
}
@@ -1934,8 +1935,18 @@ static void enable_dbs(struct adapter *adap)
for_each_ethrxq(&adap->sge, i)
enable_txq_db(adap, &adap->sge.ethtxq[i].q);
- for_each_ofldtxq(&adap->sge, i)
- enable_txq_db(adap, &adap->sge.ofldtxq[i].q);
+ if (is_offload(adap)) {
+ struct sge_uld_txq_info *txq_info =
+ adap->sge.uld_txq_info[CXGB4_TX_OFLD];
+
+ if (txq_info) {
+ for_each_ofldtxq(&adap->sge, i) {
+ struct sge_uld_txq *txq = &txq_info->uldtxq[i];
+
+ enable_txq_db(adap, &txq->q);
+ }
+ }
+ }
for_each_port(adap, i)
enable_txq_db(adap, &adap->sge.ctrlq[i].q);
}
@@ -2006,8 +2017,17 @@ static void recover_all_queues(struct adapter *adap)
for_each_ethrxq(&adap->sge, i)
sync_txq_pidx(adap, &adap->sge.ethtxq[i].q);
- for_each_ofldtxq(&adap->sge, i)
- sync_txq_pidx(adap, &adap->sge.ofldtxq[i].q);
+ if (is_offload(adap)) {
+ struct sge_uld_txq_info *txq_info =
+ adap->sge.uld_txq_info[CXGB4_TX_OFLD];
+ if (txq_info) {
+ for_each_ofldtxq(&adap->sge, i) {
+ struct sge_uld_txq *txq = &txq_info->uldtxq[i];
+
+ sync_txq_pidx(adap, &txq->q);
+ }
+ }
+ }
for_each_port(adap, i)
sync_txq_pidx(adap, &adap->sge.ctrlq[i].q);
}
@@ -3991,7 +4011,7 @@ static inline bool is_x_10g_port(const struct link_config *lc)
static void cfg_queues(struct adapter *adap)
{
struct sge *s = &adap->sge;
- int i, n10g = 0, qidx = 0;
+ int i = 0, n10g = 0, qidx = 0;
#ifndef CONFIG_CHELSIO_T4_DCB
int q10g = 0;
#endif
@@ -4006,8 +4026,7 @@ static void cfg_queues(struct adapter *adap)
adap->params.crypto = 0;
}
- for_each_port(adap, i)
- n10g += is_x_10g_port(&adap2pinfo(adap, i)->link_cfg);
+ n10g += is_x_10g_port(&adap2pinfo(adap, i)->link_cfg);
#ifdef CONFIG_CHELSIO_T4_DCB
/* For Data Center Bridging support we need to be able to support up
* to 8 Traffic Priorities; each of which will be assigned to its
@@ -4075,9 +4094,6 @@ static void cfg_queues(struct adapter *adap)
for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++)
s->ctrlq[i].q.size = 512;
- for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++)
- s->ofldtxq[i].q.size = 1024;
-
init_rspq(adap, &s->fw_evtq, 0, 1, 1024, 64);
init_rspq(adap, &s->intrq, 0, 1, 512, 64);
}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
index 2471ff465d5c..565a6c6bfeaf 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
@@ -447,6 +447,106 @@ static void quiesce_rx_uld(struct adapter *adap, unsigned int uld_type)
quiesce_rx(adap, &rxq_info->uldrxq[idx].rspq);
}
+static void
+free_sge_txq_uld(struct adapter *adap, struct sge_uld_txq_info *txq_info)
+{
+ int nq = txq_info->ntxq;
+ int i;
+
+ for (i = 0; i < nq; i++) {
+ struct sge_uld_txq *txq = &txq_info->uldtxq[i];
+
+ if (txq && txq->q.desc) {
+ tasklet_kill(&txq->qresume_tsk);
+ 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);
+ __skb_queue_purge(&txq->sendq);
+ free_txq(adap, &txq->q);
+ }
+ }
+}
+
+static int
+alloc_sge_txq_uld(struct adapter *adap, struct sge_uld_txq_info *txq_info,
+ unsigned int uld_type)
+{
+ struct sge *s = &adap->sge;
+ int nq = txq_info->ntxq;
+ int i, j, err;
+
+ j = nq / adap->params.nports;
+ for (i = 0; i < nq; i++) {
+ struct sge_uld_txq *txq = &txq_info->uldtxq[i];
+
+ txq->q.size = 1024;
+ err = t4_sge_alloc_uld_txq(adap, txq, adap->port[i / j],
+ s->fw_evtq.cntxt_id, uld_type);
+ if (err)
+ goto freeout;
+ }
+ return 0;
+freeout:
+ free_sge_txq_uld(adap, txq_info);
+ return err;
+}
+
+static void
+release_sge_txq_uld(struct adapter *adap, unsigned int uld_type)
+{
+ struct sge_uld_txq_info *txq_info = NULL;
+ int tx_uld_type = TX_ULD(uld_type);
+
+ txq_info = adap->sge.uld_txq_info[tx_uld_type];
+
+ if (txq_info && atomic_dec_and_test(&txq_info->users)) {
+ free_sge_txq_uld(adap, txq_info);
+ kfree(txq_info->uldtxq);
+ kfree(txq_info);
+ adap->sge.uld_txq_info[tx_uld_type] = NULL;
+ }
+}
+
+static int
+setup_sge_txq_uld(struct adapter *adap, unsigned int uld_type,
+ const struct cxgb4_uld_info *uld_info)
+{
+ struct sge_uld_txq_info *txq_info = NULL;
+ int tx_uld_type, i;
+
+ tx_uld_type = TX_ULD(uld_type);
+ txq_info = adap->sge.uld_txq_info[tx_uld_type];
+
+ if ((tx_uld_type == CXGB4_TX_OFLD) && txq_info &&
+ (atomic_inc_return(&txq_info->users) > 1))
+ return 0;
+
+ txq_info = kzalloc(sizeof(*txq_info), GFP_KERNEL);
+ if (!txq_info)
+ return -ENOMEM;
+
+ i = min_t(int, uld_info->ntxq, num_online_cpus());
+ txq_info->ntxq = roundup(i, adap->params.nports);
+
+ txq_info->uldtxq = kcalloc(txq_info->ntxq, sizeof(struct sge_uld_txq),
+ GFP_KERNEL);
+ if (!txq_info->uldtxq) {
+ kfree(txq_info->uldtxq);
+ return -ENOMEM;
+ }
+
+ if (alloc_sge_txq_uld(adap, txq_info, tx_uld_type)) {
+ kfree(txq_info->uldtxq);
+ kfree(txq_info);
+ return -ENOMEM;
+ }
+
+ atomic_inc(&txq_info->users);
+ adap->sge.uld_txq_info[tx_uld_type] = txq_info;
+ return 0;
+}
+
static void uld_queue_init(struct adapter *adap, unsigned int uld_type,
struct cxgb4_lld_info *lli)
{
@@ -472,7 +572,15 @@ int t4_uld_mem_alloc(struct adapter *adap)
if (!s->uld_rxq_info)
goto err_uld;
+ s->uld_txq_info = kzalloc(CXGB4_TX_MAX *
+ sizeof(struct sge_uld_txq_info *),
+ GFP_KERNEL);
+ if (!s->uld_txq_info)
+ goto err_uld_rx;
return 0;
+
+err_uld_rx:
+ kfree(s->uld_rxq_info);
err_uld:
kfree(adap->uld);
return -ENOMEM;
@@ -482,6 +590,7 @@ void t4_uld_mem_free(struct adapter *adap)
{
struct sge *s = &adap->sge;
+ kfree(s->uld_txq_info);
kfree(s->uld_rxq_info);
kfree(adap->uld);
}
@@ -616,6 +725,9 @@ int cxgb4_register_uld(enum cxgb4_uld type,
ret = -EBUSY;
goto free_irq;
}
+ ret = setup_sge_txq_uld(adap, type, p);
+ if (ret)
+ goto free_irq;
adap->uld[type] = *p;
uld_attach(adap, type);
adap_idx++;
@@ -644,6 +756,7 @@ int cxgb4_register_uld(enum cxgb4_uld type,
break;
adap->uld[type].handle = NULL;
adap->uld[type].add = NULL;
+ release_sge_txq_uld(adap, type);
if (adap->flags & FULL_INIT_DONE)
quiesce_rx_uld(adap, type);
if (adap->flags & USING_MSIX)
@@ -679,6 +792,7 @@ int cxgb4_unregister_uld(enum cxgb4_uld type)
continue;
adap->uld[type].handle = NULL;
adap->uld[type].add = NULL;
+ release_sge_txq_uld(adap, type);
if (adap->flags & FULL_INIT_DONE)
quiesce_rx_uld(adap, type);
if (adap->flags & USING_MSIX)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index 2996793b1aaa..4c856605fdfa 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -77,6 +77,8 @@ enum {
/* Special asynchronous notification message */
#define CXGB4_MSG_AN ((void *)1)
+#define TX_ULD(uld)(((uld) != CXGB4_ULD_CRYPTO) ? CXGB4_TX_OFLD :\
+ CXGB4_TX_CRYPTO)
struct serv_entry {
void *data;
@@ -223,6 +225,19 @@ enum cxgb4_uld {
CXGB4_ULD_MAX
};
+enum cxgb4_tx_uld {
+ CXGB4_TX_OFLD,
+ CXGB4_TX_CRYPTO,
+ CXGB4_TX_MAX
+};
+
+enum cxgb4_txq_type {
+ CXGB4_TXQ_ETH,
+ CXGB4_TXQ_ULD,
+ CXGB4_TXQ_CTRL,
+ CXGB4_TXQ_MAX
+};
+
enum cxgb4_state {
CXGB4_STATE_UP,
CXGB4_STATE_START_RECOVERY,
@@ -316,6 +331,7 @@ struct cxgb4_uld_info {
void *handle;
unsigned int nrxq;
unsigned int rxq_size;
+ unsigned int ntxq;
bool ciq;
bool lro;
void *(*add)(const struct cxgb4_lld_info *p);
@@ -333,6 +349,7 @@ struct cxgb4_uld_info {
int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p);
int cxgb4_unregister_uld(enum cxgb4_uld type);
int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb);
+int cxgb4_crypto_send(struct net_device *dev, struct sk_buff *skb);
unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo);
unsigned int cxgb4_port_chan(const struct net_device *dev);
unsigned int cxgb4_port_viid(const struct net_device *dev);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 1e74fd6085df..b7d0753b9242 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -377,8 +377,8 @@ unmap: dma_unmap_page(dev, be64_to_cpu(p->addr[0]),
* Reclaims Tx descriptors from an SGE Tx queue and frees the associated
* Tx buffers. Called with the Tx queue lock held.
*/
-static void free_tx_desc(struct adapter *adap, struct sge_txq *q,
- unsigned int n, bool unmap)
+void free_tx_desc(struct adapter *adap, struct sge_txq *q,
+ unsigned int n, bool unmap)
{
struct tx_sw_desc *d;
unsigned int cidx = q->cidx;
@@ -1543,7 +1543,7 @@ static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb)
* inability to map packets. A periodic timer attempts to restart
* queues so marked.
*/
-static void txq_stop_maperr(struct sge_ofld_txq *q)
+static void txq_stop_maperr(struct sge_uld_txq *q)
{
q->mapping_err++;
q->q.stops++;
@@ -1559,7 +1559,7 @@ static void txq_stop_maperr(struct sge_ofld_txq *q)
* Stops an offload Tx queue that has become full and modifies the packet
* being written to request a wakeup.
*/
-static void ofldtxq_stop(struct sge_ofld_txq *q, struct sk_buff *skb)
+static void ofldtxq_stop(struct sge_uld_txq *q, struct sk_buff *skb)
{
struct fw_wr_hdr *wr = (struct fw_wr_hdr *)skb->data;
@@ -1586,7 +1586,7 @@ static void ofldtxq_stop(struct sge_ofld_txq *q, struct sk_buff *skb)
* boolean "service_ofldq_running" to make sure that only one instance
* is ever running at a time ...
*/
-static void service_ofldq(struct sge_ofld_txq *q)
+static void service_ofldq(struct sge_uld_txq *q)
{
u64 *pos, *before, *end;
int credits;
@@ -1706,7 +1706,7 @@ static void service_ofldq(struct sge_ofld_txq *q)
*
* Send an offload packet through an SGE offload queue.
*/
-static int ofld_xmit(struct sge_ofld_txq *q, struct sk_buff *skb)
+static int ofld_xmit(struct sge_uld_txq *q, struct sk_buff *skb)
{
skb->priority = calc_tx_flits_ofld(skb); /* save for restart */
spin_lock(&q->sendq.lock);
@@ -1735,7 +1735,7 @@ static int ofld_xmit(struct sge_ofld_txq *q, struct sk_buff *skb)
*/
static void restart_ofldq(unsigned long data)
{
- struct sge_ofld_txq *q = (struct sge_ofld_txq *)data;
+ struct sge_uld_txq *q = (struct sge_uld_txq *)data;
spin_lock(&q->sendq.lock);
q->full = 0; /* the queue actually is completely empty now */
@@ -1767,17 +1767,23 @@ static inline unsigned int is_ctrl_pkt(const struct sk_buff *skb)
return skb->queue_mapping & 1;
}
-static inline int ofld_send(struct adapter *adap, struct sk_buff *skb)
+static inline int uld_send(struct adapter *adap, struct sk_buff *skb,
+ unsigned int tx_uld_type)
{
+ struct sge_uld_txq_info *txq_info;
+ struct sge_uld_txq *txq;
unsigned int idx = skb_txq(skb);
+ txq_info = adap->sge.uld_txq_info[tx_uld_type];
+ txq = &txq_info->uldtxq[idx];
+
if (unlikely(is_ctrl_pkt(skb))) {
/* Single ctrl queue is a requirement for LE workaround path */
if (adap->tids.nsftids)
idx = 0;
return ctrl_xmit(&adap->sge.ctrlq[idx], skb);
}
- return ofld_xmit(&adap->sge.ofldtxq[idx], skb);
+ return ofld_xmit(txq, skb);
}
/**
@@ -1794,7 +1800,7 @@ int t4_ofld_send(struct adapter *adap, struct sk_buff *skb)
int ret;
local_bh_disable();
- ret = ofld_send(adap, skb);
+ ret = uld_send(adap, skb, CXGB4_TX_OFLD);
local_bh_enable();
return ret;
}
@@ -1813,6 +1819,39 @@ int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb)
}
EXPORT_SYMBOL(cxgb4_ofld_send);
+/**
+ * t4_crypto_send - send crypto packet
+ * @adap: the adapter
+ * @skb: the packet
+ *
+ * Sends crypto packet. We use the packet queue_mapping to select the
+ * appropriate Tx queue as follows: bit 0 indicates whether the packet
+ * should be sent as regular or control, bits 1-15 select the queue.
+ */
+static int t4_crypto_send(struct adapter *adap, struct sk_buff *skb)
+{
+ int ret;
+
+ local_bh_disable();
+ ret = uld_send(adap, skb, CXGB4_TX_CRYPTO);
+ local_bh_enable();
+ return ret;
+}
+
+/**
+ * cxgb4_crypto_send - send crypto packet
+ * @dev: the net device
+ * @skb: the packet
+ *
+ * Sends crypto packet. This is an exported version of @t4_crypto_send,
+ * intended for ULDs.
+ */
+int cxgb4_crypto_send(struct net_device *dev, struct sk_buff *skb)
+{
+ return t4_crypto_send(netdev2adap(dev), skb);
+}
+EXPORT_SYMBOL(cxgb4_crypto_send);
+
static inline void copy_frags(struct sk_buff *skb,
const struct pkt_gl *gl, unsigned int offset)
{
@@ -2479,7 +2518,7 @@ static void sge_tx_timer_cb(unsigned long data)
for (i = 0; i < BITS_TO_LONGS(s->egr_sz); i++)
for (m = s->txq_maperr[i]; m; m &= m - 1) {
unsigned long id = __ffs(m) + i * BITS_PER_LONG;
- struct sge_ofld_txq *txq = s->egr_map[id];
+ struct sge_uld_txq *txq = s->egr_map[id];
clear_bit(id, s->txq_maperr);
tasklet_schedule(&txq->qresume_tsk);
@@ -2799,6 +2838,7 @@ int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
return ret;
}
+ txq->q.q_type = CXGB4_TXQ_ETH;
init_txq(adap, &txq->q, FW_EQ_ETH_CMD_EQID_G(ntohl(c.eqid_pkd)));
txq->txq = netdevq;
txq->tso = txq->tx_cso = txq->vlan_ins = 0;
@@ -2852,6 +2892,7 @@ int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
return ret;
}
+ txq->q.q_type = CXGB4_TXQ_CTRL;
init_txq(adap, &txq->q, FW_EQ_CTRL_CMD_EQID_G(ntohl(c.cmpliqid_eqid)));
txq->adap = adap;
skb_queue_head_init(&txq->sendq);
@@ -2872,13 +2913,15 @@ 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_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
- struct net_device *dev, unsigned int iqid)
+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 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;
/* Add status entries */
nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc);
@@ -2891,7 +2934,9 @@ int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
return -ENOMEM;
memset(&c, 0, sizeof(c));
- c.op_to_vfn = htonl(FW_CMD_OP_V(FW_EQ_OFLD_CMD) | FW_CMD_REQUEST_F |
+ 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) |
FW_EQ_OFLD_CMD_VFN_V(0));
@@ -2919,6 +2964,7 @@ int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
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);
@@ -2928,7 +2974,7 @@ int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
return 0;
}
-static void free_txq(struct adapter *adap, struct sge_txq *q)
+void free_txq(struct adapter *adap, struct sge_txq *q)
{
struct sge *s = &adap->sge;
@@ -3026,21 +3072,6 @@ void t4_free_sge_resources(struct adapter *adap)
}
}
- /* clean up offload Tx queues */
- for (i = 0; i < ARRAY_SIZE(adap->sge.ofldtxq); i++) {
- struct sge_ofld_txq *q = &adap->sge.ofldtxq[i];
-
- if (q->q.desc) {
- tasklet_kill(&q->qresume_tsk);
- t4_ofld_eq_free(adap, adap->mbox, adap->pf, 0,
- q->q.cntxt_id);
- free_tx_desc(adap, &q->q, q->q.in_use, false);
- kfree(q->q.sdesc);
- __skb_queue_purge(&q->sendq);
- free_txq(adap, &q->q);
- }
- }
-
/* clean up control Tx queues */
for (i = 0; i < ARRAY_SIZE(adap->sge.ctrlq); i++) {
struct sge_ctrl_txq *cq = &adap->sge.ctrlq[i];
@@ -3093,12 +3124,34 @@ void t4_sge_stop(struct adapter *adap)
if (s->tx_timer.function)
del_timer_sync(&s->tx_timer);
- for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++) {
- struct sge_ofld_txq *q = &s->ofldtxq[i];
+ if (is_offload(adap)) {
+ struct sge_uld_txq_info *txq_info;
+
+ txq_info = adap->sge.uld_txq_info[CXGB4_TX_OFLD];
+ if (txq_info) {
+ struct sge_uld_txq *txq = txq_info->uldtxq;
- if (q->q.desc)
- tasklet_kill(&q->qresume_tsk);
+ for_each_ofldtxq(&adap->sge, i) {
+ if (txq->q.desc)
+ tasklet_kill(&txq->qresume_tsk);
+ }
+ }
}
+
+ if (is_pci_uld(adap)) {
+ struct sge_uld_txq_info *txq_info;
+
+ txq_info = adap->sge.uld_txq_info[CXGB4_TX_CRYPTO];
+ if (txq_info) {
+ struct sge_uld_txq *txq = txq_info->uldtxq;
+
+ for_each_ofldtxq(&adap->sge, i) {
+ if (txq->q.desc)
+ tasklet_kill(&txq->qresume_tsk);
+ }
+ }
+ }
+
for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++) {
struct sge_ctrl_txq *cq = &s->ctrlq[i];
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index 0039bebaa9e2..4655a9f9dcea 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -85,6 +85,7 @@ static inline int send_tx_flowc_wr(struct cxgbi_sock *);
static const struct cxgb4_uld_info cxgb4i_uld_info = {
.name = DRV_MODULE_NAME,
.nrxq = MAX_ULD_QSETS,
+ .ntxq = MAX_ULD_QSETS,
.rxq_size = 1024,
.lro = false,
.add = t4_uld_add,
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_main.c b/drivers/target/iscsi/cxgbit/cxgbit_main.c
index ad26b9372f10..96eedfc49c94 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_main.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_main.c
@@ -653,6 +653,7 @@ static struct iscsit_transport cxgbit_transport = {
static struct cxgb4_uld_info cxgbit_uld_info = {
.name = DRV_NAME,
.nrxq = MAX_ULD_QSETS,
+ .ntxq = MAX_ULD_QSETS,
.rxq_size = 1024,
.lro = true,
.add = cxgbit_uld_add,
--
2.3.4
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