DPAA hardware support two kinds of queues:
1. Pull mode queue - where one needs to regularly pull the packets.
2. Push mode queue - where the hw pushes the packet to queue. These are
high performance queues, but limitd in number.
This patch add the driver support for push m de queues.
Signed-off-by: Sunil Kumar Kori <sunil.k...@nxp.com>
Signed-off-by: Hemant Agrawal <hemant.agra...@nxp.com>
---
drivers/bus/dpaa/base/qbman/qman.c | 64 +++++++++++++++++++++++++++++++
drivers/bus/dpaa/base/qbman/qman.h | 4 +-
drivers/bus/dpaa/include/fsl_qman.h | 10 +++++
drivers/bus/dpaa/rte_bus_dpaa_version.map | 2 +
4 files changed, 78 insertions(+), 2 deletions(-)
diff --git a/drivers/bus/dpaa/base/qbman/qman.c
b/drivers/bus/dpaa/base/qbman/qman.c
index b2f82a3..42d509d 100644
--- a/drivers/bus/dpaa/base/qbman/qman.c
+++ b/drivers/bus/dpaa/base/qbman/qman.c
@@ -1080,6 +1080,70 @@ u16 qman_affine_channel(int cpu)
return affine_channels[cpu];
}
+unsigned int qman_portal_poll_rx(unsigned int poll_limit,
+ void **bufs,
+ struct qman_portal *p)
+{
+ const struct qm_dqrr_entry *dq;
+ struct qman_fq *fq;
+ enum qman_cb_dqrr_result res;
+ unsigned int limit = 0;
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ struct qm_dqrr_entry *shadow;
+#endif
+ unsigned int rx_number = 0;
+
+ do {
+ qm_dqrr_pvb_update(&p->p);
+ dq = qm_dqrr_current(&p->p);
+ if (unlikely(!dq))
+ break;
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ /* If running on an LE system the fields of the
+ * dequeue entry must be swapper. Because the
+ * QMan HW will ignore writes the DQRR entry is
+ * copied and the index stored within the copy
+ */
+ shadow = &p->shadow_dqrr[DQRR_PTR2IDX(dq)];
+ *shadow = *dq;
+ dq = shadow;
+ shadow->fqid = be32_to_cpu(shadow->fqid);
+ shadow->contextB = be32_to_cpu(shadow->contextB);
+ shadow->seqnum = be16_to_cpu(shadow->seqnum);
+ hw_fd_to_cpu(&shadow->fd);
+#endif
+
+ /* SDQCR: context_b points to the FQ */
+#ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
+ fq = get_fq_table_entry(dq->contextB);
+#else
+ fq = (void *)(uintptr_t)dq->contextB;
+#endif
+ /* Now let the callback do its stuff */
+ res = fq->cb.dqrr_dpdk_cb(NULL, p, fq, dq, &bufs[rx_number]);
+ rx_number++;
+ /* Interpret 'dq' from a driver perspective. */
+ /*
+ * Parking isn't possible unless HELDACTIVE was set. NB,
+ * FORCEELIGIBLE implies HELDACTIVE, so we only need to
+ * check for HELDACTIVE to cover both.
+ */
+ DPAA_ASSERT((dq->stat & QM_DQRR_STAT_FQ_HELDACTIVE) ||
+ (res != qman_cb_dqrr_park));
+ qm_dqrr_cdc_consume_1ptr(&p->p, dq, res == qman_cb_dqrr_park);
+ /* Move forward */
+ qm_dqrr_next(&p->p);
+ /*
+ * Entry processed and consumed, increment our counter. The
+ * callback can request that we exit after consuming the
+ * entry, and we also exit if we reach our processing limit,
+ * so loop back only if neither of these conditions is met.
+ */
+ } while (likely(++limit < poll_limit));
+
+ return limit;
+}
+
struct qm_dqrr_entry *qman_dequeue(struct qman_fq *fq)
{
struct qman_portal *p = get_affine_portal();
diff --git a/drivers/bus/dpaa/base/qbman/qman.h
b/drivers/bus/dpaa/base/qbman/qman.h
index 2c0f694..999e429 100644
--- a/drivers/bus/dpaa/base/qbman/qman.h
+++ b/drivers/bus/dpaa/base/qbman/qman.h
@@ -187,7 +187,7 @@ struct qm_eqcr {
};
struct qm_dqrr {
- const struct qm_dqrr_entry *ring, *cursor;
+ struct qm_dqrr_entry *ring, *cursor;
u8 pi, ci, fill, ithresh, vbit;
#ifdef RTE_LIBRTE_DPAA_HWDEBUG
enum qm_dqrr_dmode dmode;
@@ -460,7 +460,7 @@ static inline u8 DQRR_PTR2IDX(const struct qm_dqrr_entry *e)
return ((uintptr_t)e >> 6) & (QM_DQRR_SIZE - 1);
}
-static inline const struct qm_dqrr_entry *DQRR_INC(
+static inline struct qm_dqrr_entry *DQRR_INC(
const struct qm_dqrr_entry *e)
{
return DQRR_CARRYCLEAR(e + 1);
diff --git a/drivers/bus/dpaa/include/fsl_qman.h
b/drivers/bus/dpaa/include/fsl_qman.h
index 9090b63..7ec07ee 100644
--- a/drivers/bus/dpaa/include/fsl_qman.h
+++ b/drivers/bus/dpaa/include/fsl_qman.h
@@ -1157,6 +1157,12 @@ typedef enum qman_cb_dqrr_result (*qman_cb_dqrr)(struct
qman_portal *qm,
struct qman_fq *fq,
const struct qm_dqrr_entry *dqrr);
+typedef enum qman_cb_dqrr_result (*qman_dpdk_cb_dqrr)(void *event,
+ struct qman_portal *qm,
+ struct qman_fq *fq,
+ const struct qm_dqrr_entry *dqrr,
+ void **bd);
+
/*
* This callback type is used when handling ERNs, FQRNs and FQRLs via MR. They
* are always consumed after the callback returns.
@@ -1215,6 +1221,7 @@ enum qman_fq_state {
*/
struct qman_fq_cb {
+ qman_dpdk_cb_dqrr dqrr_dpdk_cb; /* for dequeued frames */
qman_cb_dqrr dqrr; /* for dequeued frames */
qman_cb_mr ern; /* for s/w ERNs */
qman_cb_mr fqs; /* frame-queue state changes*/
@@ -1332,6 +1339,9 @@ int qman_get_portal_index(void);
*/
u16 qman_affine_channel(int cpu);
+unsigned int qman_portal_poll_rx(unsigned int poll_limit,
+ void **bufs, struct qman_portal *q);
+
/**
* qman_set_vdq - Issue a volatile dequeue command
* @fq: Frame Queue on which the volatile dequeue command is issued
diff --git a/drivers/bus/dpaa/rte_bus_dpaa_version.map
b/drivers/bus/dpaa/rte_bus_dpaa_version.map
index 212c75f..460cfbf 100644
--- a/drivers/bus/dpaa/rte_bus_dpaa_version.map
+++ b/drivers/bus/dpaa/rte_bus_dpaa_version.map
@@ -70,9 +70,11 @@ DPDK_18.02 {
dpaa_svr_family;
qman_alloc_cgrid_range;
+ qman_alloc_pool_range;
qman_create_cgr;
qman_delete_cgr;
qman_modify_cgr;
+ qman_portal_poll_rx;
qman_query_fq_frm_cnt;
qman_release_cgrid_range;
rte_dpaa_portal_fq_close;
--
2.7.4
