[dpdk-dev] [PATCH v2 08/29] bus/fslmc: rename the cinh read functions used for ls1088

[Hemant Agrawal <hemant.agrawal@nxp.com>]

From: Nipun Gupta <nipun.gupta@nxp.com>

This patch changes the qbman I/O function names as they are
only reading from cinh register, but writing to cena registers.

This gives way to add functions which purely work in cinh mode

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
---
 drivers/bus/fslmc/qbman/qbman_portal.c | 250 +++++++++++++++++++++++--
 1 file changed, 233 insertions(+), 17 deletions(-)

diff --git a/drivers/bus/fslmc/qbman/qbman_portal.c b/drivers/bus/fslmc/qbman/qbman_portal.c
index 57f50b0d8..0a2af7be4 100644
--- a/drivers/bus/fslmc/qbman/qbman_portal.c
+++ b/drivers/bus/fslmc/qbman/qbman_portal.c
@@ -78,7 +78,7 @@ qbman_swp_enqueue_ring_mode_direct(struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		const struct qbman_fd *fd);
 static int
-qbman_swp_enqueue_ring_mode_cinh_direct(struct qbman_swp *s,
+qbman_swp_enqueue_ring_mode_cinh_read_direct(struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		const struct qbman_fd *fd);
 static int
@@ -97,7 +97,7 @@ qbman_swp_enqueue_multiple_direct(struct qbman_swp *s,
 		uint32_t *flags,
 		int num_frames);
 static int
-qbman_swp_enqueue_multiple_cinh_direct(struct qbman_swp *s,
+qbman_swp_enqueue_multiple_cinh_read_direct(struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		const struct qbman_fd *fd,
 		uint32_t *flags,
@@ -122,7 +122,7 @@ qbman_swp_enqueue_multiple_fd_direct(struct qbman_swp *s,
 		uint32_t *flags,
 		int num_frames);
 static int
-qbman_swp_enqueue_multiple_fd_cinh_direct(struct qbman_swp *s,
+qbman_swp_enqueue_multiple_fd_cinh_read_direct(struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		struct qbman_fd **fd,
 		uint32_t *flags,
@@ -146,7 +146,7 @@ qbman_swp_enqueue_multiple_desc_direct(struct qbman_swp *s,
 		const struct qbman_fd *fd,
 		int num_frames);
 static int
-qbman_swp_enqueue_multiple_desc_cinh_direct(struct qbman_swp *s,
+qbman_swp_enqueue_multiple_desc_cinh_read_direct(struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		const struct qbman_fd *fd,
 		int num_frames);
@@ -309,15 +309,15 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
 			&& (d->cena_access_mode == qman_cena_fastest_access)) {
 		p->eqcr.pi_ring_size = 32;
 		qbman_swp_enqueue_array_mode_ptr =
-				qbman_swp_enqueue_array_mode_mem_back;
+			qbman_swp_enqueue_array_mode_mem_back;
 		qbman_swp_enqueue_ring_mode_ptr =
-				qbman_swp_enqueue_ring_mode_mem_back;
+			qbman_swp_enqueue_ring_mode_mem_back;
 		qbman_swp_enqueue_multiple_ptr =
-				qbman_swp_enqueue_multiple_mem_back;
+			qbman_swp_enqueue_multiple_mem_back;
 		qbman_swp_enqueue_multiple_fd_ptr =
-				qbman_swp_enqueue_multiple_fd_mem_back;
+			qbman_swp_enqueue_multiple_fd_mem_back;
 		qbman_swp_enqueue_multiple_desc_ptr =
-				qbman_swp_enqueue_multiple_desc_mem_back;
+			qbman_swp_enqueue_multiple_desc_mem_back;
 		qbman_swp_pull_ptr = qbman_swp_pull_mem_back;
 		qbman_swp_dqrr_next_ptr = qbman_swp_dqrr_next_mem_back;
 		qbman_swp_release_ptr = qbman_swp_release_mem_back;
@@ -325,13 +325,13 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
 
 	if (dpaa2_svr_family == SVR_LS1080A) {
 		qbman_swp_enqueue_ring_mode_ptr =
-				qbman_swp_enqueue_ring_mode_cinh_direct;
+			qbman_swp_enqueue_ring_mode_cinh_read_direct;
 		qbman_swp_enqueue_multiple_ptr =
-				qbman_swp_enqueue_multiple_cinh_direct;
+			qbman_swp_enqueue_multiple_cinh_read_direct;
 		qbman_swp_enqueue_multiple_fd_ptr =
-				qbman_swp_enqueue_multiple_fd_cinh_direct;
+			qbman_swp_enqueue_multiple_fd_cinh_read_direct;
 		qbman_swp_enqueue_multiple_desc_ptr =
-				qbman_swp_enqueue_multiple_desc_cinh_direct;
+			qbman_swp_enqueue_multiple_desc_cinh_read_direct;
 	}
 
 	for (mask_size = p->eqcr.pi_ring_size; mask_size > 0; mask_size >>= 1)
@@ -835,7 +835,7 @@ static int qbman_swp_enqueue_ring_mode_direct(struct qbman_swp *s,
 	return 0;
 }
 
-static int qbman_swp_enqueue_ring_mode_cinh_direct(
+static int qbman_swp_enqueue_ring_mode_cinh_read_direct(
 		struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		const struct qbman_fd *fd)
@@ -873,6 +873,44 @@ static int qbman_swp_enqueue_ring_mode_cinh_direct(
 	return 0;
 }
 
+static int qbman_swp_enqueue_ring_mode_cinh_direct(
+		struct qbman_swp *s,
+		const struct qbman_eq_desc *d,
+		const struct qbman_fd *fd)
+{
+	uint32_t *p;
+	const uint32_t *cl = qb_cl(d);
+	uint32_t eqcr_ci, full_mask, half_mask;
+
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		s->eqcr.ci = qbman_cinh_read(&s->sys,
+				QBMAN_CINH_SWP_EQCR_CI) & full_mask;
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+				eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available)
+			return -EBUSY;
+	}
+
+	p = qbman_cinh_write_start_wo_shadow(&s->sys,
+			QBMAN_CENA_SWP_EQCR(s->eqcr.pi & half_mask));
+	memcpy_byte_by_byte(&p[1], &cl[1], 28);
+	memcpy_byte_by_byte(&p[8], fd, sizeof(*fd));
+	lwsync();
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	p[0] = cl[0] | s->eqcr.pi_vb;
+	s->eqcr.pi++;
+	s->eqcr.pi &= full_mask;
+	s->eqcr.available--;
+	if (!(s->eqcr.pi & half_mask))
+		s->eqcr.pi_vb ^= QB_VALID_BIT;
+
+	return 0;
+}
+
 static int qbman_swp_enqueue_ring_mode_mem_back(struct qbman_swp *s,
 						const struct qbman_eq_desc *d,
 						const struct qbman_fd *fd)
@@ -999,7 +1037,7 @@ static int qbman_swp_enqueue_multiple_direct(struct qbman_swp *s,
 	return num_enqueued;
 }
 
-static int qbman_swp_enqueue_multiple_cinh_direct(
+static int qbman_swp_enqueue_multiple_cinh_read_direct(
 		struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		const struct qbman_fd *fd,
@@ -1069,6 +1107,67 @@ static int qbman_swp_enqueue_multiple_cinh_direct(
 	return num_enqueued;
 }
 
+static int qbman_swp_enqueue_multiple_cinh_direct(
+		struct qbman_swp *s,
+		const struct qbman_eq_desc *d,
+		const struct qbman_fd *fd,
+		uint32_t *flags,
+		int num_frames)
+{
+	uint32_t *p = NULL;
+	const uint32_t *cl = qb_cl(d);
+	uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+	int i, num_enqueued = 0;
+
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		s->eqcr.ci = qbman_cinh_read(&s->sys,
+				QBMAN_CINH_SWP_EQCR_CI) & full_mask;
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+				eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available)
+			return 0;
+	}
+
+	eqcr_pi = s->eqcr.pi;
+	num_enqueued = (s->eqcr.available < num_frames) ?
+			s->eqcr.available : num_frames;
+	s->eqcr.available -= num_enqueued;
+	/* Fill in the EQCR ring */
+	for (i = 0; i < num_enqueued; i++) {
+		p = qbman_cinh_write_start_wo_shadow(&s->sys,
+				QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		memcpy_byte_by_byte(&p[1], &cl[1], 28);
+		memcpy_byte_by_byte(&p[8], &fd[i], sizeof(*fd));
+		eqcr_pi++;
+	}
+
+	lwsync();
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++) {
+		p = qbman_cinh_write_start_wo_shadow(&s->sys,
+				QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		p[0] = cl[0] | s->eqcr.pi_vb;
+		if (flags && (flags[i] & QBMAN_ENQUEUE_FLAG_DCA)) {
+			struct qbman_eq_desc *d = (struct qbman_eq_desc *)p;
+
+			d->eq.dca = (1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT) |
+				((flags[i]) & QBMAN_EQCR_DCA_IDXMASK);
+		}
+		eqcr_pi++;
+		if (!(eqcr_pi & half_mask))
+			s->eqcr.pi_vb ^= QB_VALID_BIT;
+	}
+
+	s->eqcr.pi = eqcr_pi & full_mask;
+
+	return num_enqueued;
+}
+
 static int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
 					       const struct qbman_eq_desc *d,
 					       const struct qbman_fd *fd,
@@ -1205,7 +1304,7 @@ static int qbman_swp_enqueue_multiple_fd_direct(struct qbman_swp *s,
 	return num_enqueued;
 }
 
-static int qbman_swp_enqueue_multiple_fd_cinh_direct(
+static int qbman_swp_enqueue_multiple_fd_cinh_read_direct(
 		struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		struct qbman_fd **fd,
@@ -1275,6 +1374,67 @@ static int qbman_swp_enqueue_multiple_fd_cinh_direct(
 	return num_enqueued;
 }
 
+static int qbman_swp_enqueue_multiple_fd_cinh_direct(
+		struct qbman_swp *s,
+		const struct qbman_eq_desc *d,
+		struct qbman_fd **fd,
+		uint32_t *flags,
+		int num_frames)
+{
+	uint32_t *p = NULL;
+	const uint32_t *cl = qb_cl(d);
+	uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+	int i, num_enqueued = 0;
+
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		s->eqcr.ci = qbman_cinh_read(&s->sys,
+				QBMAN_CINH_SWP_EQCR_CI) & full_mask;
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+				eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available)
+			return 0;
+	}
+
+	eqcr_pi = s->eqcr.pi;
+	num_enqueued = (s->eqcr.available < num_frames) ?
+			s->eqcr.available : num_frames;
+	s->eqcr.available -= num_enqueued;
+	/* Fill in the EQCR ring */
+	for (i = 0; i < num_enqueued; i++) {
+		p = qbman_cinh_write_start_wo_shadow(&s->sys,
+				QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		memcpy_byte_by_byte(&p[1], &cl[1], 28);
+		memcpy_byte_by_byte(&p[8], fd[i], sizeof(struct qbman_fd));
+		eqcr_pi++;
+	}
+
+	lwsync();
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++) {
+		p = qbman_cinh_write_start_wo_shadow(&s->sys,
+				QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		p[0] = cl[0] | s->eqcr.pi_vb;
+		if (flags && (flags[i] & QBMAN_ENQUEUE_FLAG_DCA)) {
+			struct qbman_eq_desc *d = (struct qbman_eq_desc *)p;
+
+			d->eq.dca = (1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT) |
+				((flags[i]) & QBMAN_EQCR_DCA_IDXMASK);
+		}
+		eqcr_pi++;
+		if (!(eqcr_pi & half_mask))
+			s->eqcr.pi_vb ^= QB_VALID_BIT;
+	}
+
+	s->eqcr.pi = eqcr_pi & full_mask;
+
+	return num_enqueued;
+}
+
 static int qbman_swp_enqueue_multiple_fd_mem_back(struct qbman_swp *s,
 						  const struct qbman_eq_desc *d,
 						  struct qbman_fd **fd,
@@ -1413,7 +1573,7 @@ static int qbman_swp_enqueue_multiple_desc_direct(struct qbman_swp *s,
 	return num_enqueued;
 }
 
-static int qbman_swp_enqueue_multiple_desc_cinh_direct(
+static int qbman_swp_enqueue_multiple_desc_cinh_read_direct(
 		struct qbman_swp *s,
 		const struct qbman_eq_desc *d,
 		const struct qbman_fd *fd,
@@ -1478,6 +1638,62 @@ static int qbman_swp_enqueue_multiple_desc_cinh_direct(
 	return num_enqueued;
 }
 
+static int qbman_swp_enqueue_multiple_desc_cinh_direct(
+		struct qbman_swp *s,
+		const struct qbman_eq_desc *d,
+		const struct qbman_fd *fd,
+		int num_frames)
+{
+	uint32_t *p;
+	const uint32_t *cl;
+	uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+	int i, num_enqueued = 0;
+
+	half_mask = (s->eqcr.pi_ci_mask>>1);
+	full_mask = s->eqcr.pi_ci_mask;
+	if (!s->eqcr.available) {
+		eqcr_ci = s->eqcr.ci;
+		s->eqcr.ci = qbman_cinh_read(&s->sys,
+				QBMAN_CINH_SWP_EQCR_CI) & full_mask;
+		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+					eqcr_ci, s->eqcr.ci);
+		if (!s->eqcr.available)
+			return 0;
+	}
+
+	eqcr_pi = s->eqcr.pi;
+	num_enqueued = (s->eqcr.available < num_frames) ?
+			s->eqcr.available : num_frames;
+	s->eqcr.available -= num_enqueued;
+	/* Fill in the EQCR ring */
+	for (i = 0; i < num_enqueued; i++) {
+		p = qbman_cinh_write_start_wo_shadow(&s->sys,
+				QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		cl = qb_cl(&d[i]);
+		memcpy_byte_by_byte(&p[1], &cl[1], 28);
+		memcpy_byte_by_byte(&p[8], &fd[i], sizeof(*fd));
+		eqcr_pi++;
+	}
+
+	lwsync();
+
+	/* Set the verb byte, have to substitute in the valid-bit */
+	eqcr_pi = s->eqcr.pi;
+	for (i = 0; i < num_enqueued; i++) {
+		p = qbman_cinh_write_start_wo_shadow(&s->sys,
+				QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+		cl = qb_cl(&d[i]);
+		p[0] = cl[0] | s->eqcr.pi_vb;
+		eqcr_pi++;
+		if (!(eqcr_pi & half_mask))
+			s->eqcr.pi_vb ^= QB_VALID_BIT;
+	}
+
+	s->eqcr.pi = eqcr_pi & full_mask;
+
+	return num_enqueued;
+}
+
 static int qbman_swp_enqueue_multiple_desc_mem_back(struct qbman_swp *s,
 					const struct qbman_eq_desc *d,
 					const struct qbman_fd *fd,
-- 
2.17.1