diff mbox series

[v4,1/3] net/octeon_ep: support 32B IQ descriptor size

Message ID 20231012062354.535392-2-vattunuru@marvell.com (mailing list archive)
State Superseded, archived
Delegated to: Jerin Jacob
Headers
Series rewrite fastpath routines |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Vamsi Krishna Attunuru Oct. 12, 2023, 6:23 a.m. UTC 
  From: Shijith Thotton <sthotton@marvell.com>

Update input queue setup to consider descriptor size in driver conf.
The default instruction size for otx2 and cnxk devices has been updated
to 32 bytes.

Signed-off-by: Shijith Thotton <sthotton@marvell.com>
---
 drivers/net/octeon_ep/cnxk_ep_vf.c    | 10 +++++++++-
 drivers/net/octeon_ep/otx2_ep_vf.c    | 10 +++++++++-
 drivers/net/octeon_ep/otx_ep_common.h |  4 ++++
 drivers/net/octeon_ep/otx_ep_vf.c     |  8 ++++++++
 4 files changed, 30 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/octeon_ep/cnxk_ep_vf.c b/drivers/net/octeon_ep/cnxk_ep_vf.c
index 92c2d2ca5c..7b3669fe0c 100644
--- a/drivers/net/octeon_ep/cnxk_ep_vf.c
+++ b/drivers/net/octeon_ep/cnxk_ep_vf.c
@@ -106,6 +106,14 @@  cnxk_ep_vf_setup_iq_regs(struct otx_ep_device *otx_ep, uint32_t iq_no)
 		return -EIO;
 	}
 
+	/* Configure input queue instruction size. */
+	if (otx_ep->conf->iq.instr_type == OTX_EP_32BYTE_INSTR)
+		reg_val &= ~(CNXK_EP_R_IN_CTL_IS_64B);
+	else
+		reg_val |= CNXK_EP_R_IN_CTL_IS_64B;
+	oct_ep_write64(reg_val, otx_ep->hw_addr + CNXK_EP_R_IN_CONTROL(iq_no));
+	iq->desc_size = otx_ep->conf->iq.instr_type;
+
 	/* Write the start of the input queue's ring and its size  */
 	oct_ep_write64(iq->base_addr_dma, otx_ep->hw_addr + CNXK_EP_R_IN_INSTR_BADDR(iq_no));
 	oct_ep_write64(iq->nb_desc, otx_ep->hw_addr + CNXK_EP_R_IN_INSTR_RSIZE(iq_no));
@@ -354,7 +362,7 @@  static const struct otx_ep_config default_cnxk_ep_conf = {
 	/* IQ attributes */
 	.iq                        = {
 		.max_iqs           = OTX_EP_CFG_IO_QUEUES,
-		.instr_type        = OTX_EP_64BYTE_INSTR,
+		.instr_type        = OTX_EP_32BYTE_INSTR,
 		.pending_list_size = (OTX_EP_MAX_IQ_DESCRIPTORS *
 				      OTX_EP_CFG_IO_QUEUES),
 	},
diff --git a/drivers/net/octeon_ep/otx2_ep_vf.c b/drivers/net/octeon_ep/otx2_ep_vf.c
index ced3a415a5..f72b8d25d7 100644
--- a/drivers/net/octeon_ep/otx2_ep_vf.c
+++ b/drivers/net/octeon_ep/otx2_ep_vf.c
@@ -256,6 +256,14 @@  otx2_vf_setup_iq_regs(struct otx_ep_device *otx_ep, uint32_t iq_no)
 		return -EIO;
 	}
 
+	/* Configure input queue instruction size. */
+	if (otx_ep->conf->iq.instr_type == OTX_EP_32BYTE_INSTR)
+		reg_val &= ~(SDP_VF_R_IN_CTL_IS_64B);
+	else
+		reg_val |= SDP_VF_R_IN_CTL_IS_64B;
+	oct_ep_write64(reg_val, otx_ep->hw_addr + SDP_VF_R_IN_CONTROL(iq_no));
+	iq->desc_size = otx_ep->conf->iq.instr_type;
+
 	/* Write the start of the input queue's ring and its size  */
 	oct_ep_write64(iq->base_addr_dma, otx_ep->hw_addr + SDP_VF_R_IN_INSTR_BADDR(iq_no));
 	oct_ep_write64(iq->nb_desc, otx_ep->hw_addr + SDP_VF_R_IN_INSTR_RSIZE(iq_no));
@@ -500,7 +508,7 @@  static const struct otx_ep_config default_otx2_ep_conf = {
 	/* IQ attributes */
 	.iq                        = {
 		.max_iqs           = OTX_EP_CFG_IO_QUEUES,
-		.instr_type        = OTX_EP_64BYTE_INSTR,
+		.instr_type        = OTX_EP_32BYTE_INSTR,
 		.pending_list_size = (OTX_EP_MAX_IQ_DESCRIPTORS *
 				      OTX_EP_CFG_IO_QUEUES),
 	},
diff --git a/drivers/net/octeon_ep/otx_ep_common.h b/drivers/net/octeon_ep/otx_ep_common.h
index c150cbe619..90e059cad0 100644
--- a/drivers/net/octeon_ep/otx_ep_common.h
+++ b/drivers/net/octeon_ep/otx_ep_common.h
@@ -11,6 +11,7 @@ 
 
 #define OTX_EP_MAX_RINGS_PER_VF        (8)
 #define OTX_EP_CFG_IO_QUEUES        OTX_EP_MAX_RINGS_PER_VF
+#define OTX_EP_32BYTE_INSTR         (32)
 #define OTX_EP_64BYTE_INSTR         (64)
 /*
  * Backpressure for SDP is configured on Octeon, and the minimum queue sizes
@@ -215,6 +216,9 @@  struct otx_ep_instr_queue {
 	/* Number of  descriptors in this ring. */
 	uint32_t nb_desc;
 
+	/* Size of the descriptor. */
+	uint8_t desc_size;
+
 	/* Input ring index, where the driver should write the next packet */
 	uint32_t host_write_index;
 
diff --git a/drivers/net/octeon_ep/otx_ep_vf.c b/drivers/net/octeon_ep/otx_ep_vf.c
index 4f3538146b..236b7a874c 100644
--- a/drivers/net/octeon_ep/otx_ep_vf.c
+++ b/drivers/net/octeon_ep/otx_ep_vf.c
@@ -120,6 +120,14 @@  otx_ep_setup_iq_regs(struct otx_ep_device *otx_ep, uint32_t iq_no)
 			return -EIO;
 	}
 
+	/* Configure input queue instruction size. */
+	if (iq->desc_size == OTX_EP_32BYTE_INSTR)
+		reg_val &= ~(OTX_EP_R_IN_CTL_IS_64B);
+	else
+		reg_val |= OTX_EP_R_IN_CTL_IS_64B;
+	oct_ep_write64(reg_val, otx_ep->hw_addr + OTX_EP_R_IN_CONTROL(iq_no));
+	iq->desc_size = otx_ep->conf->iq.instr_type;
+
 	/* Write the start of the input queue's ring and its size  */
 	otx_ep_write64(iq->base_addr_dma, otx_ep->hw_addr,
 		       OTX_EP_R_IN_INSTR_BADDR(iq_no));