From: Venkat Kumar Ande <venkatkumar.ande@amd.com>
To: <dev@dpdk.org>
Cc: <Selwin.Sebastian@amd.com>,
Venkat Kumar Ande <VenkatKumar.Ande@amd.com>, <stable@dpdk.org>,
Selwin Sebastian <selwin.sebastian@amd.com>
Subject: [PATCH v3 11/25] net/axgbe: flow Tx Ctrl Registers are h/w version dependent
Date: Tue, 4 Jun 2024 17:41:43 +0530 [thread overview]
Message-ID: <20240604121157.3052-11-venkatkumar.ande@amd.com> (raw)
In-Reply-To: <20240604121157.3052-1-venkatkumar.ande@amd.com>
From: Venkat Kumar Ande <VenkatKumar.Ande@amd.com>
There is difference in the TX Flow Control registers (TFCR) between the
revisions of the hardware. The older revisions of hardware used to have
single register per queue. Whereas, the newer revision of hardware (from
ver 30H onwards) have one register per priority.
Without the fix the user will face problem in TX operation on new 30H HW
Fixes: 7c4158a5b592 ("net/axgbe: add DMA programming and start/stop")
Cc: stable@dpdk.org
Signed-off-by: Venkat Kumar Ande <VenkatKumar.Ande@amd.com>
Acked-by: Selwin Sebastian <selwin.sebastian@amd.com>
---
drivers/net/axgbe/axgbe_dev.c | 25 +++++++++++++++----------
1 file changed, 15 insertions(+), 10 deletions(-)
diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c
index 9b0073eea6..5233633a53 100644
--- a/drivers/net/axgbe/axgbe_dev.c
+++ b/drivers/net/axgbe/axgbe_dev.c
@@ -269,20 +269,28 @@ static int axgbe_set_speed(struct axgbe_port *pdata, int speed)
return 0;
}
+static unsigned int axgbe_get_fc_queue_count(struct axgbe_port *pdata)
+{
+ unsigned int max_q_count = AXGMAC_MAX_FLOW_CONTROL_QUEUES;
+
+ /* From MAC ver 30H the TFCR is per priority, instead of per queue */
+ if (AXGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER) >= 0x30)
+ return max_q_count;
+ else
+ return (RTE_MIN(pdata->tx_q_count, max_q_count));
+}
+
static int axgbe_disable_tx_flow_control(struct axgbe_port *pdata)
{
- unsigned int max_q_count, q_count;
unsigned int reg, reg_val;
- unsigned int i;
+ unsigned int i, q_count;
/* Clear MTL flow control */
for (i = 0; i < pdata->rx_q_count; i++)
AXGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, EHFC, 0);
/* Clear MAC flow control */
- max_q_count = AXGMAC_MAX_FLOW_CONTROL_QUEUES;
- q_count = RTE_MIN(pdata->tx_q_count,
- max_q_count);
+ q_count = axgbe_get_fc_queue_count(pdata);
reg = MAC_Q0TFCR;
for (i = 0; i < q_count; i++) {
reg_val = AXGMAC_IOREAD(pdata, reg);
@@ -297,9 +305,8 @@ static int axgbe_disable_tx_flow_control(struct axgbe_port *pdata)
static int axgbe_enable_tx_flow_control(struct axgbe_port *pdata)
{
- unsigned int max_q_count, q_count;
unsigned int reg, reg_val;
- unsigned int i;
+ unsigned int i, q_count;
/* Set MTL flow control */
for (i = 0; i < pdata->rx_q_count; i++) {
@@ -316,9 +323,7 @@ static int axgbe_enable_tx_flow_control(struct axgbe_port *pdata)
}
/* Set MAC flow control */
- max_q_count = AXGMAC_MAX_FLOW_CONTROL_QUEUES;
- q_count = RTE_MIN(pdata->tx_q_count,
- max_q_count);
+ q_count = axgbe_get_fc_queue_count(pdata);
reg = MAC_Q0TFCR;
for (i = 0; i < q_count; i++) {
reg_val = AXGMAC_IOREAD(pdata, reg);
--
2.34.1
next prev parent reply other threads:[~2024-06-04 12:13 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240507124305.2318-1-VenkatKumar.Ande@amd.com>
2024-06-04 12:11 ` [PATCH v3 01/25] net/axgbe: fix mdio access for non-zero ports and CL45 PHYs Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 02/25] net/axgbe: reset link when the link never comes back Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 03/25] net/axgbe: fix fluctuations for 1G BELFUSE SFP Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 04/25] net/axgbe: update DMA coherency values Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 05/25] net/axgbe: disable interrupts during device removal Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 06/25] net/axgbe: yellow carp devices do not need rrc Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 07/25] net/axgbe: enable PLL control for fixed PHY modes only Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 08/25] net/axgbe: fix the SFP codes check for DAC cables Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 09/25] net/axgbe: fix logic around active and passive cables Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 10/25] net/axgbe: check only the minimum speed for cables Venkat Kumar Ande
2024-06-04 12:11 ` Venkat Kumar Ande [this message]
2024-06-04 12:11 ` [PATCH v3 12/25] net/axgbe: delay AN timeout during KR training Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 13/25] net/axgbe: fix the false linkup in axgbe PHY status Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 14/25] net/axgbe: remove use of comm owned field Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 15/25] net/axgbe: remove field of SFP diagnostic support Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 16/25] net/axgbe: improve SFP 100Mbps auto-negotiation Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 17/25] net/axgbe: remove unnecessary conversion to bool Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 18/25] net/axgbe: use definitions for mailbox commands Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 19/25] net/axgbe: add support for 10 Mbps speed Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 20/25] net/axgbe: separate C22 and C45 transactions Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 21/25] net/axgbe: replace mii generic macro for c45 with AXGBE Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 22/25] net/axgbe: add 2.5GbE support to 10G BaseT mode Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 23/25] net/axgbe: add support for Rx adaptation Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 24/25] net/axgbe: extend 10Mbps support to MAC version 21H Venkat Kumar Ande
2024-06-04 12:11 ` [PATCH v3 25/25] net/axgbe: modify debug messages Venkat Kumar Ande
2024-06-05 17:07 ` [PATCH v3 01/25] net/axgbe: fix mdio access for non-zero ports and CL45 PHYs Ferruh Yigit
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