From: Venkat Kumar Ande <VenkatKumar.Ande@amd.com>
To: <dev@dpdk.org>
Cc: <Selwin.Sebastian@amd.com>, Venkat Kumar Ande <VenkatKumar.Ande@amd.com>
Subject: [PATCH 12/24] net/axgbe: enable PLL control for fixed PHY modes only
Date: Fri, 12 Apr 2024 08:52:37 -0400 [thread overview]
Message-ID: <20240412125249.10625-12-VenkatKumar.Ande@amd.com> (raw)
In-Reply-To: <20240412125249.10625-1-VenkatKumar.Ande@amd.com>
PLL control setting(RRC) is needed only in fixed PHY configuration to
fix the peer-peer issues. Without the PLL control setting, the link up
takes longer time in a fixed phy configuration.
Driver implements SW RRC for Autoneg On configuration, hence PLL control
setting (RRC) is not needed for AN On configuration, and can be skipped.
Also, PLL re-initialization is not needed for PHY Power Off and RRC
commands. Otherwise, they lead to mailbox errors. Added the changes
accordingly.
Signed-off-by: Venkat Kumar Ande <VenkatKumar.Ande@amd.com>
---
drivers/net/axgbe/axgbe_phy_impl.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c
index 8cc99d3a6b..ceff36df3d 100644
--- a/drivers/net/axgbe/axgbe_phy_impl.c
+++ b/drivers/net/axgbe/axgbe_phy_impl.c
@@ -1207,6 +1207,10 @@ static void axgbe_phy_rx_reset(struct axgbe_port *pdata)
static void axgbe_phy_pll_ctrl(struct axgbe_port *pdata, bool enable)
{
+ /* PLL_CTRL feature needs to be enabled for fixed PHY modes (Non-Autoneg) only */
+ if (pdata->phy.autoneg != AUTONEG_DISABLE)
+ return;
+
XMDIO_WRITE_BITS(pdata, MDIO_MMD_PMAPMD, MDIO_VEND2_PMA_MISC_CTRL0,
XGBE_PMA_PLL_CTRL_MASK,
enable ? XGBE_PMA_PLL_CTRL_SET
@@ -1251,8 +1255,10 @@ static void axgbe_phy_perform_ratechange(struct axgbe_port *pdata,
axgbe_phy_rx_reset(pdata);
reenable_pll:
- /* Re-enable the PLL control */
- axgbe_phy_pll_ctrl(pdata, true);
+ /* Enable PLL re-initialization, not needed for PHY Power Off and RRC cmds */
+ if (cmd != AXGBE_MB_CMD_POWER_OFF &&
+ cmd != AXGBE_MB_CMD_RRC)
+ axgbe_phy_pll_ctrl(pdata, true);
PMD_DRV_LOG(NOTICE, "firmware mailbox command did not complete\n");
}
--
2.34.1
next prev parent reply other threads:[~2024-04-12 12:54 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-12 12:52 [PATCH 01/24] net/axgbe: remove use of comm_owned field Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 02/24] net/axgbe: remove field of SFP diagnostic support Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 03/24] net/axgbe: improve SFP 100Mbps auto-negotiation Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 04/24] net/axgbe: check mdio for non-zero ports and CL45 PHYs Venkat Kumar Ande
2024-04-22 15:21 ` Ferruh Yigit
2024-04-12 12:52 ` [PATCH 05/24] net/axgbe: remove unnecessary conversion to bool Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 06/24] net/axgbe: reset link when the link never comes back Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 07/24] net/axgbe: check fluctuations for 1G BELFUSE SFP Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 08/24] net/axgbe: update DMA coherency values Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 09/24] net/axgbe: disable interrupts during device removal Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 10/24] net/axgbe: yellow carp devices do not need rrc Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 11/24] net/axgbe: use definitions for mailbox commands Venkat Kumar Ande
2024-04-12 12:52 ` Venkat Kumar Ande [this message]
2024-04-12 12:52 ` [PATCH 13/24] net/axgbe: improve the SFP codes check for DAC cables Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 14/24] net/axgbe: improve logic around active and passive cables Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 15/24] net/axgbe: check only the minimum speed for cables Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 16/24] net/axgbe: add support for 10 Mbps speed Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 17/24] net/axgbe: flow Tx Ctrl Registers are h/w ver dependent Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 18/24] net/axgbe: delay AN timeout during KR training Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 19/24] net/axgbe: separate C22 and C45 transactions Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 20/24] net/axgbe: replace mii generic macro for c45 with AXGBE Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 21/24] net/axgbe: add 2.5GbE support to 10G BaseT mode Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 22/24] net/axgbe: add support for Rx adaptation Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 23/24] net/axgbe: improve the false linkup in axgbe PHY status Venkat Kumar Ande
2024-04-12 12:52 ` [PATCH 24/24] net/axgbe: extend 10Mbps support to MAC version 21H Venkat Kumar Ande
2024-04-22 15:12 ` [PATCH 01/24] net/axgbe: remove use of comm_owned field Ferruh Yigit
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