[dpdk-dev] [PATCH 41/60] common/sfc_efx/base: group RxQ parameters into a structure

[Andrew Rybchenko <arybchenko@solarflare.com>]

Make number of efx_mcdi_init_rxq() arguments reasonable before
addition of one more argument.
Non essential parameters not supported in some cases are moved
into helper structure.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
---
 drivers/common/sfc_efx/base/ef10_rx.c  | 57 +++++++++++---------------
 drivers/common/sfc_efx/base/efx_impl.h | 20 +++++----
 drivers/common/sfc_efx/base/efx_mcdi.c | 33 ++++++---------
 drivers/common/sfc_efx/base/rhead_rx.c | 14 ++++---
 4 files changed, 58 insertions(+), 66 deletions(-)

diff --git a/drivers/common/sfc_efx/base/ef10_rx.c b/drivers/common/sfc_efx/base/ef10_rx.c
index 43d545b377..ea5f514f18 100644
--- a/drivers/common/sfc_efx/base/ef10_rx.c
+++ b/drivers/common/sfc_efx/base/ef10_rx.c
@@ -906,21 +906,18 @@ ef10_rx_qcreate(
 	__in		efx_rxq_t *erp)
 {
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+	efx_mcdi_init_rxq_params_t params;
 	const efx_rx_prefix_layout_t *erpl;
 	efx_rc_t rc;
-	boolean_t disable_scatter;
-	boolean_t want_inner_classes;
-	unsigned int ps_buf_size;
-	uint32_t es_bufs_per_desc = 0;
-	uint32_t es_max_dma_len = 0;
-	uint32_t es_buf_stride = 0;
-	uint32_t hol_block_timeout = 0;
 
 	_NOTE(ARGUNUSED(id, erp))
 
 	EFX_STATIC_ASSERT(EFX_EV_RX_NLABELS == (1 << ESF_DZ_RX_QLABEL_WIDTH));
 	EFSYS_ASSERT3U(label, <, EFX_EV_RX_NLABELS);
 
+	memset(&params, 0, sizeof (params));
+	params.buf_size = erp->er_buf_size;
+
 	switch (type) {
 	case EFX_RXQ_TYPE_DEFAULT:
 		erpl = &ef10_default_rx_prefix_layout;
@@ -929,7 +926,6 @@ ef10_rx_qcreate(
 			goto fail1;
 		}
 		erp->er_buf_size = type_data->ertd_default.ed_buf_size;
-		ps_buf_size = 0;
 		break;
 #if EFSYS_OPT_RX_PACKED_STREAM
 	case EFX_RXQ_TYPE_PACKED_STREAM:
@@ -940,19 +936,19 @@ ef10_rx_qcreate(
 		}
 		switch (type_data->ertd_packed_stream.eps_buf_size) {
 		case EFX_RXQ_PACKED_STREAM_BUF_SIZE_1M:
-			ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M;
+			params.ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M;
 			break;
 		case EFX_RXQ_PACKED_STREAM_BUF_SIZE_512K:
-			ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_512K;
+			params.ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_512K;
 			break;
 		case EFX_RXQ_PACKED_STREAM_BUF_SIZE_256K:
-			ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_256K;
+			params.ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_256K;
 			break;
 		case EFX_RXQ_PACKED_STREAM_BUF_SIZE_128K:
-			ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_128K;
+			params.ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_128K;
 			break;
 		case EFX_RXQ_PACKED_STREAM_BUF_SIZE_64K:
-			ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_64K;
+			params.ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_64K;
 			break;
 		default:
 			rc = ENOTSUP;
@@ -968,14 +964,13 @@ ef10_rx_qcreate(
 			rc = EINVAL;
 			goto fail4;
 		}
-		ps_buf_size = 0;
-		es_bufs_per_desc =
+		params.es_bufs_per_desc =
 		    type_data->ertd_es_super_buffer.eessb_bufs_per_desc;
-		es_max_dma_len =
+		params.es_max_dma_len =
 		    type_data->ertd_es_super_buffer.eessb_max_dma_len;
-		es_buf_stride =
+		params.es_buf_stride =
 		    type_data->ertd_es_super_buffer.eessb_buf_stride;
-		hol_block_timeout =
+		params.hol_block_timeout =
 		    type_data->ertd_es_super_buffer.eessb_hol_block_timeout;
 		break;
 #endif /* EFSYS_OPT_RX_ES_SUPER_BUFFER */
@@ -985,59 +980,57 @@ ef10_rx_qcreate(
 	}
 
 #if EFSYS_OPT_RX_PACKED_STREAM
-	if (ps_buf_size != 0) {
+	if (params.ps_buf_size != 0) {
 		/* Check if datapath firmware supports packed stream mode */
 		if (encp->enc_rx_packed_stream_supported == B_FALSE) {
 			rc = ENOTSUP;
 			goto fail6;
 		}
 		/* Check if packed stream allows configurable buffer sizes */
-		if ((ps_buf_size != MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M) &&
+		if ((params.ps_buf_size != MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M) &&
 		    (encp->enc_rx_var_packed_stream_supported == B_FALSE)) {
 			rc = ENOTSUP;
 			goto fail7;
 		}
 	}
 #else /* EFSYS_OPT_RX_PACKED_STREAM */
-	EFSYS_ASSERT(ps_buf_size == 0);
+	EFSYS_ASSERT(params.ps_buf_size == 0);
 #endif /* EFSYS_OPT_RX_PACKED_STREAM */
 
 #if EFSYS_OPT_RX_ES_SUPER_BUFFER
-	if (es_bufs_per_desc > 0) {
+	if (params.es_bufs_per_desc > 0) {
 		if (encp->enc_rx_es_super_buffer_supported == B_FALSE) {
 			rc = ENOTSUP;
 			goto fail8;
 		}
-		if (!EFX_IS_P2ALIGNED(uint32_t, es_max_dma_len,
+		if (!EFX_IS_P2ALIGNED(uint32_t, params.es_max_dma_len,
 			    EFX_RX_ES_SUPER_BUFFER_BUF_ALIGNMENT)) {
 			rc = EINVAL;
 			goto fail9;
 		}
-		if (!EFX_IS_P2ALIGNED(uint32_t, es_buf_stride,
+		if (!EFX_IS_P2ALIGNED(uint32_t, params.es_buf_stride,
 			    EFX_RX_ES_SUPER_BUFFER_BUF_ALIGNMENT)) {
 			rc = EINVAL;
 			goto fail10;
 		}
 	}
 #else /* EFSYS_OPT_RX_ES_SUPER_BUFFER */
-	EFSYS_ASSERT(es_bufs_per_desc == 0);
+	EFSYS_ASSERT(params.es_bufs_per_desc == 0);
 #endif /* EFSYS_OPT_RX_ES_SUPER_BUFFER */
 
 	/* Scatter can only be disabled if the firmware supports doing so */
 	if (flags & EFX_RXQ_FLAG_SCATTER)
-		disable_scatter = B_FALSE;
+		params.disable_scatter = B_FALSE;
 	else
-		disable_scatter = encp->enc_rx_disable_scatter_supported;
+		params.disable_scatter = encp->enc_rx_disable_scatter_supported;
 
 	if (flags & EFX_RXQ_FLAG_INNER_CLASSES)
-		want_inner_classes = B_TRUE;
+		params.want_inner_classes = B_TRUE;
 	else
-		want_inner_classes = B_FALSE;
+		params.want_inner_classes = B_FALSE;
 
 	if ((rc = efx_mcdi_init_rxq(enp, ndescs, eep, label, index,
-		    esmp, disable_scatter, want_inner_classes, erp->er_buf_size,
-		    ps_buf_size, es_bufs_per_desc, es_max_dma_len,
-		    es_buf_stride, hol_block_timeout)) != 0)
+		    esmp, &params)) != 0)
 		goto fail11;
 
 	erp->er_eep = eep;
diff --git a/drivers/common/sfc_efx/base/efx_impl.h b/drivers/common/sfc_efx/base/efx_impl.h
index 01869155fa..c373192554 100644
--- a/drivers/common/sfc_efx/base/efx_impl.h
+++ b/drivers/common/sfc_efx/base/efx_impl.h
@@ -1430,6 +1430,17 @@ efx_mcdi_fini_evq(
 	__in		efx_nic_t *enp,
 	__in		uint32_t instance);
 
+typedef struct efx_mcdi_init_rxq_params_s {
+	boolean_t	disable_scatter;
+	boolean_t	want_inner_classes;
+	uint32_t	buf_size;
+	uint32_t	ps_buf_size;
+	uint32_t	es_bufs_per_desc;
+	uint32_t	es_max_dma_len;
+	uint32_t	es_buf_stride;
+	uint32_t	hol_block_timeout;
+} efx_mcdi_init_rxq_params_t;
+
 LIBEFX_INTERNAL
 extern	__checkReturn	efx_rc_t
 efx_mcdi_init_rxq(
@@ -1439,14 +1450,7 @@ efx_mcdi_init_rxq(
 	__in		uint32_t label,
 	__in		uint32_t instance,
 	__in		efsys_mem_t *esmp,
-	__in		boolean_t disable_scatter,
-	__in		boolean_t want_inner_classes,
-	__in		uint32_t buf_size,
-	__in		uint32_t ps_bufsize,
-	__in		uint32_t es_bufs_per_desc,
-	__in		uint32_t es_max_dma_len,
-	__in		uint32_t es_buf_stride,
-	__in		uint32_t hol_block_timeout);
+	__in		const efx_mcdi_init_rxq_params_t *params);
 
 LIBEFX_INTERNAL
 extern	__checkReturn	efx_rc_t
diff --git a/drivers/common/sfc_efx/base/efx_mcdi.c b/drivers/common/sfc_efx/base/efx_mcdi.c
index 278c5e2a64..aa19c7c759 100644
--- a/drivers/common/sfc_efx/base/efx_mcdi.c
+++ b/drivers/common/sfc_efx/base/efx_mcdi.c
@@ -2688,14 +2688,7 @@ efx_mcdi_init_rxq(
 	__in		uint32_t label,
 	__in		uint32_t instance,
 	__in		efsys_mem_t *esmp,
-	__in		boolean_t disable_scatter,
-	__in		boolean_t want_inner_classes,
-	__in		uint32_t buf_size,
-	__in		uint32_t ps_bufsize,
-	__in		uint32_t es_bufs_per_desc,
-	__in		uint32_t es_max_dma_len,
-	__in		uint32_t es_buf_stride,
-	__in		uint32_t hol_block_timeout)
+	__in		const efx_mcdi_init_rxq_params_t *params)
 {
 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
 	efx_mcdi_req_t req;
@@ -2719,21 +2712,21 @@ efx_mcdi_init_rxq(
 	}
 
 	no_cont_ev = (eep->ee_flags & EFX_EVQ_FLAGS_NO_CONT_EV);
-	if ((no_cont_ev == B_TRUE) && (disable_scatter == B_FALSE)) {
+	if ((no_cont_ev == B_TRUE) && (params->disable_scatter == B_FALSE)) {
 		/* TODO: Support scatter in NO_CONT_EV mode */
 		rc = EINVAL;
 		goto fail2;
 	}
 
-	if (ps_bufsize > 0)
+	if (params->ps_buf_size > 0)
 		dma_mode = MC_CMD_INIT_RXQ_EXT_IN_PACKED_STREAM;
-	else if (es_bufs_per_desc > 0)
+	else if (params->es_bufs_per_desc > 0)
 		dma_mode = MC_CMD_INIT_RXQ_V3_IN_EQUAL_STRIDE_SUPER_BUFFER;
 	else
 		dma_mode = MC_CMD_INIT_RXQ_EXT_IN_SINGLE_PACKET;
 
 	if (encp->enc_tunnel_encapsulations_supported != 0 &&
-	    !want_inner_classes) {
+	    !params->want_inner_classes) {
 		/*
 		 * WANT_OUTER_CLASSES can only be specified on hardware which
 		 * supports tunnel encapsulation offloads, even though it is
@@ -2768,31 +2761,31 @@ efx_mcdi_init_rxq(
 	    INIT_RXQ_EXT_IN_FLAG_TIMESTAMP, 0,
 	    INIT_RXQ_EXT_IN_CRC_MODE, 0,
 	    INIT_RXQ_EXT_IN_FLAG_PREFIX, 1,
-	    INIT_RXQ_EXT_IN_FLAG_DISABLE_SCATTER, disable_scatter,
+	    INIT_RXQ_EXT_IN_FLAG_DISABLE_SCATTER, params->disable_scatter,
 	    INIT_RXQ_EXT_IN_DMA_MODE,
 	    dma_mode,
-	    INIT_RXQ_EXT_IN_PACKED_STREAM_BUFF_SIZE, ps_bufsize,
+	    INIT_RXQ_EXT_IN_PACKED_STREAM_BUFF_SIZE, params->ps_buf_size,
 	    INIT_RXQ_EXT_IN_FLAG_WANT_OUTER_CLASSES, want_outer_classes,
 	    INIT_RXQ_EXT_IN_FLAG_NO_CONT_EV, no_cont_ev);
 	MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_OWNER_ID, 0);
 	MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_PORT_ID, enp->en_vport_id);
 
-	if (es_bufs_per_desc > 0) {
+	if (params->es_bufs_per_desc > 0) {
 		MCDI_IN_SET_DWORD(req,
 		    INIT_RXQ_V3_IN_ES_PACKET_BUFFERS_PER_BUCKET,
-		    es_bufs_per_desc);
+		    params->es_bufs_per_desc);
 		MCDI_IN_SET_DWORD(req,
-		    INIT_RXQ_V3_IN_ES_MAX_DMA_LEN, es_max_dma_len);
+		    INIT_RXQ_V3_IN_ES_MAX_DMA_LEN, params->es_max_dma_len);
 		MCDI_IN_SET_DWORD(req,
-		    INIT_RXQ_V3_IN_ES_PACKET_STRIDE, es_buf_stride);
+		    INIT_RXQ_V3_IN_ES_PACKET_STRIDE, params->es_buf_stride);
 		MCDI_IN_SET_DWORD(req,
 		    INIT_RXQ_V3_IN_ES_HEAD_OF_LINE_BLOCK_TIMEOUT,
-		    hol_block_timeout);
+		    params->hol_block_timeout);
 	}
 
 	if (encp->enc_init_rxq_with_buffer_size)
 		MCDI_IN_SET_DWORD(req, INIT_RXQ_V4_IN_BUFFER_SIZE_BYTES,
-		    buf_size);
+		    params->buf_size);
 
 	dma_addr = MCDI_IN2(req, efx_qword_t, INIT_RXQ_IN_DMA_ADDR);
 	addr = EFSYS_MEM_ADDR(esmp);
diff --git a/drivers/common/sfc_efx/base/rhead_rx.c b/drivers/common/sfc_efx/base/rhead_rx.c
index c9ab3f92e1..38c905444a 100644
--- a/drivers/common/sfc_efx/base/rhead_rx.c
+++ b/drivers/common/sfc_efx/base/rhead_rx.c
@@ -280,8 +280,8 @@ rhead_rx_qcreate(
 	__in		efx_rxq_t *erp)
 {
 	const efx_nic_cfg_t *encp = efx_nic_cfg_get(enp);
+	efx_mcdi_init_rxq_params_t params;
 	efx_rc_t rc;
-	boolean_t disable_scatter;
 
 	_NOTE(ARGUNUSED(id))
 
@@ -289,13 +289,15 @@ rhead_rx_qcreate(
 	    (1 << ESF_GZ_EV_RXPKTS_Q_LABEL_WIDTH));
 	EFSYS_ASSERT3U(label, <, EFX_EV_RX_NLABELS);
 
+	memset(&params, 0, sizeof (params));
+
 	switch (type) {
 	case EFX_RXQ_TYPE_DEFAULT:
 		if (type_data == NULL) {
 			rc = EINVAL;
 			goto fail1;
 		}
-		erp->er_buf_size = type_data->ertd_default.ed_buf_size;
+		params.buf_size = type_data->ertd_default.ed_buf_size;
 		break;
 	default:
 		rc = ENOTSUP;
@@ -304,9 +306,9 @@ rhead_rx_qcreate(
 
 	/* Scatter can only be disabled if the firmware supports doing so */
 	if (flags & EFX_RXQ_FLAG_SCATTER)
-		disable_scatter = B_FALSE;
+		params.disable_scatter = B_FALSE;
 	else
-		disable_scatter = encp->enc_rx_disable_scatter_supported;
+		params.disable_scatter = encp->enc_rx_disable_scatter_supported;
 
 	/*
 	 * Ignore EFX_RXQ_FLAG_INNER_CLASSES since in accordance with
@@ -315,12 +317,12 @@ rhead_rx_qcreate(
 	 */
 
 	if ((rc = efx_mcdi_init_rxq(enp, ndescs, eep, label, index,
-		    esmp, disable_scatter, B_FALSE, erp->er_buf_size,
-		    0, 0, 0, 0, 0)) != 0)
+		    esmp, &params)) != 0)
 		goto fail3;
 
 	erp->er_eep = eep;
 	erp->er_label = label;
+	erp->er_buf_size = params.buf_size;
 	erp->er_prefix_layout = rhead_default_rx_prefix_layout;
 
 	return (0);
-- 
2.17.1