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net/ionic: cut down queue structure

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This will conserve resources.

Rename ionic_qcq_alloc() arg from 'base' to 'type_name' for clarity.

Signed-off-by: Andrew Boyer <aboyer@pensando.io>
This commit is contained in:
Andrew Boyer 2021-02-16 12:35:32 -08:00 committed by Ferruh Yigit
parent aeb70a00b1
commit 4ad56b7a7c
5 changed files with 56 additions and 53 deletions
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14
drivers/net/ionic/ionic_dev.c
View File

@ -405,26 +405,20 @@ ionic_cq_service(struct ionic_cq *cq, uint32_t work_to_do,
}
int
ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev,
struct ionic_queue *q, uint32_t index, uint32_t num_descs,
size_t desc_size, size_t sg_desc_size)
ionic_q_init(struct ionic_queue *q, uint32_t index, uint16_t num_descs)
{
uint32_t ring_size;
if (desc_size == 0 || !rte_is_power_of_2(num_descs))
if (!rte_is_power_of_2(num_descs))
return -EINVAL;
ring_size = rte_log2_u32(num_descs);
if (ring_size < 2 || ring_size > 16)
return -EINVAL;
q->lif = lif;
q->idev = idev;
q->index = index;
q->num_descs = num_descs;
q->desc_size = desc_size;
q->sg_desc_size = sg_desc_size;
q->size_mask = num_descs - 1;
q->head_idx = 0;
q->tail_idx = 0;
@ -450,7 +444,7 @@ ionic_q_post(struct ionic_queue *q, bool ring_doorbell, void *cb_arg)
{
q->info[q->head_idx] = cb_arg;
q->head_idx = (q->head_idx + 1) & (q->num_descs - 1);
q->head_idx = Q_NEXT_TO_POST(q, 1);
if (ring_doorbell)
ionic_q_flush(q);

34
drivers/net/ionic/ionic_dev.h
View File

@ -135,25 +135,21 @@ struct ionic_dev {
#define IONIC_INFO_PTR(_q, _i) (&(_q)->info[IONIC_INFO_IDX((_q), _i)])
struct ionic_queue {
struct ionic_dev *idev;
struct ionic_lif *lif;
uint32_t index;
uint32_t type;
uint32_t hw_index;
uint32_t hw_type;
uint16_t num_descs;
uint16_t head_idx;
uint16_t tail_idx;
uint16_t size_mask;
uint8_t type;
uint8_t hw_type;
void *base;
void *sg_base;
struct ionic_doorbell __iomem *db;
void **info;
uint32_t index;
uint32_t hw_index;
rte_iova_t base_pa;
rte_iova_t sg_base_pa;
uint32_t tail_idx;
uint32_t head_idx;
uint32_t num_descs;
uint32_t desc_size;
uint32_t sg_desc_size;
uint32_t qid;
uint32_t qtype;
struct ionic_doorbell __iomem *db;
};
#define IONIC_INTR_NONE (-1)
@ -220,22 +216,20 @@ struct ionic_doorbell __iomem *ionic_db_map(struct ionic_lif *lif,
int ionic_cq_init(struct ionic_cq *cq, uint16_t num_descs);
void ionic_cq_map(struct ionic_cq *cq, void *base, rte_iova_t base_pa);
typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, uint32_t cq_desc_index,
typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, uint16_t cq_desc_index,
void *cb_arg);
uint32_t ionic_cq_service(struct ionic_cq *cq, uint32_t work_to_do,
ionic_cq_cb cb, void *cb_arg);
int ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev,
struct ionic_queue *q, uint32_t index, uint32_t num_descs,
size_t desc_size, size_t sg_desc_size);
int ionic_q_init(struct ionic_queue *q, uint32_t index, uint16_t num_descs);
void ionic_q_map(struct ionic_queue *q, void *base, rte_iova_t base_pa);
void ionic_q_sg_map(struct ionic_queue *q, void *base, rte_iova_t base_pa);
void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, void *cb_arg);
static inline uint32_t
static inline uint16_t
ionic_q_space_avail(struct ionic_queue *q)
{
uint32_t avail = q->tail_idx;
uint16_t avail = q->tail_idx;
if (q->head_idx >= avail)
avail += q->num_descs - q->head_idx - 1;

49
drivers/net/ionic/ionic_lif.c
View File

@ -34,7 +34,7 @@ int
ionic_qcq_enable(struct ionic_qcq *qcq)
{
struct ionic_queue *q = &qcq->q;
struct ionic_lif *lif = q->lif;
struct ionic_lif *lif = qcq->lif;
struct ionic_admin_ctx ctx = {
.pending_work = true,
.cmd.q_control = {
@ -52,7 +52,7 @@ int
ionic_qcq_disable(struct ionic_qcq *qcq)
{
struct ionic_queue *q = &qcq->q;
struct ionic_lif *lif = q->lif;
struct ionic_lif *lif = qcq->lif;
struct ionic_admin_ctx ctx = {
.pending_work = true,
.cmd.q_control = {
@ -585,16 +585,17 @@ ionic_intr_alloc(struct ionic_lif *lif, struct ionic_intr_info *intr)
}
static int
ionic_qcq_alloc(struct ionic_lif *lif, uint8_t type,
ionic_qcq_alloc(struct ionic_lif *lif,
uint8_t type,
uint32_t index,
const char *base, uint32_t flags,
uint32_t num_descs,
uint32_t desc_size,
uint32_t cq_desc_size,
uint32_t sg_desc_size,
const char *type_name,
uint16_t flags,
uint16_t num_descs,
uint16_t desc_size,
uint16_t cq_desc_size,
uint16_t sg_desc_size,
struct ionic_qcq **qcq)
{
struct ionic_dev *idev = &lif->adapter->idev;
struct ionic_qcq *new;
uint32_t q_size, cq_size, sg_size, total_size;
void *q_base, *cq_base, *sg_base;
@ -642,8 +643,7 @@ ionic_qcq_alloc(struct ionic_lif *lif, uint8_t type,
new->q.type = type;
err = ionic_q_init(lif, idev, &new->q, index, num_descs,
desc_size, sg_desc_size);
err = ionic_q_init(&new->q, index, num_descs);
if (err) {
IONIC_PRINT(ERR, "Queue initialization failed");
goto err_out_free_info;
@ -656,7 +656,7 @@ ionic_qcq_alloc(struct ionic_lif *lif, uint8_t type,
}
new->base_z = rte_eth_dma_zone_reserve(lif->eth_dev,
base /* name */, index /* queue_idx */,
type_name, index /* queue_idx */,
total_size, IONIC_ALIGN, socket_id);
if (!new->base_z) {
@ -727,7 +727,11 @@ ionic_rx_qcq_alloc(struct ionic_lif *lif, uint32_t index, uint16_t nrxq_descs,
int err = -ENOMEM;
flags = IONIC_QCQ_F_SG;
err = ionic_qcq_alloc(lif, IONIC_QTYPE_RXQ, index, "rx", flags,
err = ionic_qcq_alloc(lif,
IONIC_QTYPE_RXQ,
index,
"rx",
flags,
nrxq_descs,
sizeof(struct ionic_rxq_desc),
sizeof(struct ionic_rxq_comp),
@ -749,7 +753,11 @@ ionic_tx_qcq_alloc(struct ionic_lif *lif, uint32_t index, uint16_t ntxq_descs,
int err = -ENOMEM;
flags = IONIC_QCQ_F_SG;
err = ionic_qcq_alloc(lif, IONIC_QTYPE_TXQ, index, "tx", flags,
err = ionic_qcq_alloc(lif,
IONIC_QTYPE_TXQ,
index,
"tx",
flags,
ntxq_descs,
sizeof(struct ionic_txq_desc),
sizeof(struct ionic_txq_comp),
@ -770,7 +778,11 @@ ionic_admin_qcq_alloc(struct ionic_lif *lif)
int err = -ENOMEM;
flags = 0;
err = ionic_qcq_alloc(lif, IONIC_QTYPE_ADMINQ, 0, "admin", flags,
err = ionic_qcq_alloc(lif,
IONIC_QTYPE_ADMINQ,
0,
"admin",
flags,
IONIC_ADMINQ_LENGTH,
sizeof(struct ionic_admin_cmd),
sizeof(struct ionic_admin_comp),
@ -790,7 +802,10 @@ ionic_notify_qcq_alloc(struct ionic_lif *lif)
uint32_t flags = 0;
int err = -ENOMEM;
err = ionic_qcq_alloc(lif, IONIC_QTYPE_NOTIFYQ, 0, "notify",
err = ionic_qcq_alloc(lif,
IONIC_QTYPE_NOTIFYQ,
0,
"notify",
flags,
IONIC_NOTIFYQ_LENGTH,
sizeof(struct ionic_notifyq_cmd),
@ -1216,7 +1231,7 @@ ionic_lif_handle_fw_down(struct ionic_lif *lif)
}
static bool
ionic_notifyq_cb(struct ionic_cq *cq, uint32_t cq_desc_index, void *cb_arg)
ionic_notifyq_cb(struct ionic_cq *cq, uint16_t cq_desc_index, void *cb_arg)
{
union ionic_notifyq_comp *cq_desc_base = cq->base;
union ionic_notifyq_comp *cq_desc = &cq_desc_base[cq_desc_index];

4
drivers/net/ionic/ionic_main.c
View File

@ -146,7 +146,7 @@ ionic_adminq_check_err(struct ionic_admin_ctx *ctx, bool timeout)
}
static bool
ionic_adminq_service(struct ionic_cq *cq, uint32_t cq_desc_index,
ionic_adminq_service(struct ionic_cq *cq, uint16_t cq_desc_index,
void *cb_arg __rte_unused)
{
struct ionic_admin_comp *cq_desc_base = cq->base;
@ -174,7 +174,7 @@ ionic_adminq_service(struct ionic_cq *cq, uint32_t cq_desc_index,
}
curr_q_tail_idx = q->tail_idx;
q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1);
q->tail_idx = Q_NEXT_TO_SRVC(q, 1);
} while (curr_q_tail_idx != stop_index);
return true;

8
drivers/net/ionic/ionic_rxtx.c
View File

@ -98,7 +98,7 @@ ionic_tx_flush(struct ionic_qcq *txq)
while (q->tail_idx != comp_index) {
info = IONIC_INFO_PTR(q, q->tail_idx);
q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1);
q->tail_idx = Q_NEXT_TO_SRVC(q, 1);
/* Prefetch the next 4 descriptors */
if ((q->tail_idx & 0x3) == 0)
@ -540,7 +540,7 @@ ionic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
while (nb_tx < nb_pkts) {
last = (nb_tx == (nb_pkts - 1));
next_q_head_idx = (q->head_idx + 1) & (q->num_descs - 1);
next_q_head_idx = Q_NEXT_TO_POST(q, 1);
if ((next_q_head_idx & 0x3) == 0) {
struct ionic_txq_desc *desc_base = q->base;
rte_prefetch0(&desc_base[next_q_head_idx]);
@ -647,7 +647,7 @@ ionic_rx_empty(struct ionic_queue *q)
mbuf = info[0];
rte_mempool_put(rxq->mb_pool, mbuf);
q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1);
q->tail_idx = Q_NEXT_TO_SRVC(q, 1);
}
}
@ -1055,7 +1055,7 @@ ionic_rxq_service(struct ionic_qcq *rxq, uint32_t work_to_do,
more = (q->tail_idx != cq_desc->comp_index);
curr_q_tail_idx = q->tail_idx;
q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1);
q->tail_idx = Q_NEXT_TO_SRVC(q, 1);
/* Prefetch the next 4 descriptors */
if ((q->tail_idx & 0x3) == 0)