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From: Venkat Kumar Ande <venkatkumar.ande@amd.com>
To: <dev@dpdk.org>
Cc: <Selwin.Sebastian@amd.com>,
	Venkat Kumar Ande <VenkatKumar.Ande@amd.com>,
	 Selwin Sebastian <selwin.sebastian@amd.com>
Subject: [PATCH v3 14/25] net/axgbe: remove use of comm owned field
Date: Tue, 4 Jun 2024 17:41:46 +0530	[thread overview]
Message-ID: <20240604121157.3052-14-venkatkumar.ande@amd.com> (raw)
In-Reply-To: <20240604121157.3052-1-venkatkumar.ande@amd.com>

From: Venkat Kumar Ande <VenkatKumar.Ande@amd.com>

The comm_owned field can hide logic where double locking is attempted
and prevent multiple threads for the same device from accessing the
mutex properly.  Remove the comm_owned field and use the mutex API
exclusively for gaining ownership.

Signed-off-by: Venkat Kumar Ande <VenkatKumar.Ande@amd.com>
Acked-by: Selwin Sebastian <selwin.sebastian@amd.com>
---
 drivers/net/axgbe/axgbe_phy_impl.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c
index b6a2a084aa..30727ee5a4 100644
--- a/drivers/net/axgbe/axgbe_phy_impl.c
+++ b/drivers/net/axgbe/axgbe_phy_impl.c
@@ -204,8 +204,6 @@ struct axgbe_phy_data {
 
 	unsigned int mdio_addr;
 
-	unsigned int comm_owned;
-
 	/* SFP Support */
 	enum axgbe_sfp_comm sfp_comm;
 	unsigned int sfp_mux_address;
@@ -253,12 +251,6 @@ static enum axgbe_an_mode axgbe_phy_an_mode(struct axgbe_port *pdata);
 static int axgbe_phy_i2c_xfer(struct axgbe_port *pdata,
 			      struct axgbe_i2c_op *i2c_op)
 {
-	struct axgbe_phy_data *phy_data = pdata->phy_data;
-
-	/* Be sure we own the bus */
-	if (!phy_data->comm_owned)
-		return -EIO;
-
 	return pdata->i2c_if.i2c_xfer(pdata, i2c_op);
 }
 
@@ -399,10 +391,6 @@ static int axgbe_phy_sfp_get_mux(struct axgbe_port *pdata)
 
 static void axgbe_phy_put_comm_ownership(struct axgbe_port *pdata)
 {
-	struct axgbe_phy_data *phy_data = pdata->phy_data;
-
-	phy_data->comm_owned = 0;
-
 	pthread_mutex_unlock(&pdata->phy_mutex);
 }
 
@@ -418,9 +406,6 @@ static int axgbe_phy_get_comm_ownership(struct axgbe_port *pdata)
 	 */
 	pthread_mutex_lock(&pdata->phy_mutex);
 
-	if (phy_data->comm_owned)
-		return 0;
-
 	/* Clear the mutexes */
 	XP_IOWRITE(pdata, XP_I2C_MUTEX, AXGBE_MUTEX_RELEASE);
 	XP_IOWRITE(pdata, XP_MDIO_MUTEX, AXGBE_MUTEX_RELEASE);
@@ -443,7 +428,6 @@ static int axgbe_phy_get_comm_ownership(struct axgbe_port *pdata)
 		XP_IOWRITE(pdata, XP_I2C_MUTEX, mutex_id);
 		XP_IOWRITE(pdata, XP_MDIO_MUTEX, mutex_id);
 
-		phy_data->comm_owned = 1;
 		return 0;
 	}
 
-- 
2.34.1


  parent reply	other threads:[~2024-06-04 12:14 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   ` [PATCH v3 11/25] net/axgbe: flow Tx Ctrl Registers are h/w version dependent Venkat Kumar Ande
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   ` Venkat Kumar Ande [this message]
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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