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cxgb4: Allocate Tx queues dynamically 

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@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Shenai 2016-11-18 16:37:40 +05:30 committed by David S. Miller
parent c816061d27
commit ab677ff4ad
11 changed files with 287 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/crypto/chelsio/chcr_algo.c
View File

@ -592,16 +592,18 @@ badkey_err:
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:

3
drivers/crypto/chelsio/chcr_core.c
View File

@ -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)

1
drivers/infiniband/hw/cxgb4/device.c
View File

@ -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,

19
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
View File

@ -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__ */

12
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
View File

@ -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);

64
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View File

@ -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);
}

114
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
View File

@ -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 @@ out:
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)

17
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
View File

@ -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);

121
drivers/net/ethernet/chelsio/cxgb4/sge.c
View File

@ -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, &param, &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;
if (q->q.desc)
tasklet_kill(&q->qresume_tsk);
txq_info = adap->sge.uld_txq_info[CXGB4_TX_OFLD];
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);
}
}
}
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];

1
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
View File

@ -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,

1
drivers/target/iscsi/cxgbit/cxgbit_main.c
View File

@ -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,