From: Vimlesh Kumar <vimleshk@marvell.com>
To: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <sedara@marvell.com>, <srasheed@marvell.com>, <hgani@marvell.com>,
"Vimlesh Kumar" <vimleshk@marvell.com>,
Veerasenareddy Burru <vburru@marvell.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
Satananda Burla <sburla@marvell.com>,
"Abhijit Ayarekar" <aayarekar@marvell.com>
Subject: [PATCH net v1 1/3] octeon_ep: disable per ring interrupts
Date: Fri, 12 Dec 2025 12:23:00 +0000 [thread overview]
Message-ID: <20251212122304.2562229-2-vimleshk@marvell.com> (raw)
In-Reply-To: <20251212122304.2562229-1-vimleshk@marvell.com>
Disable the MSI-X per ring interrupt for every PF ring when PF
netdev goes down.
Fixes: 1f2c2d0cee023 ("octeon_ep: add hardware configuration APIs")
Signed-off-by: Sathesh Edara <sedara@marvell.com>
Signed-off-by: Shinas Rasheed <srasheed@marvell.com>
Signed-off-by: Vimlesh Kumar <vimleshk@marvell.com>
---
.../net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c | 12 ++++++++++--
.../net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c | 12 ++++++++++--
2 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
index b5805969404f..db8ae1734e1b 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c
@@ -696,14 +696,22 @@ static void octep_enable_interrupts_cn93_pf(struct octep_device *oct)
/* Disable all interrupts */
static void octep_disable_interrupts_cn93_pf(struct octep_device *oct)
{
- u64 intr_mask = 0ULL;
+ u64 reg_val, intr_mask = 0ULL;
int srn, num_rings, i;
srn = CFG_GET_PORTS_PF_SRN(oct->conf);
num_rings = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
- for (i = 0; i < num_rings; i++)
+ for (i = 0; i < num_rings; i++) {
intr_mask |= (0x1ULL << (srn + i));
+ reg_val = octep_read_csr64(oct, CN93_SDP_R_IN_INT_LEVELS(srn + i));
+ reg_val &= ~(0x1ULL << 62);
+ octep_write_csr64(oct, CN93_SDP_R_IN_INT_LEVELS(srn + i), reg_val);
+
+ reg_val = octep_read_csr64(oct, CN93_SDP_R_OUT_INT_LEVELS(srn + i));
+ reg_val &= ~(0x1ULL << 62);
+ octep_write_csr64(oct, CN93_SDP_R_OUT_INT_LEVELS(srn + i), reg_val);
+ }
octep_write_csr64(oct, CN93_SDP_EPF_IRERR_RINT_ENA_W1C, intr_mask);
octep_write_csr64(oct, CN93_SDP_EPF_ORERR_RINT_ENA_W1C, intr_mask);
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c b/drivers/net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c
index 5de0b5ecbc5f..6369c4dedf46 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c
@@ -720,14 +720,22 @@ static void octep_enable_interrupts_cnxk_pf(struct octep_device *oct)
/* Disable all interrupts */
static void octep_disable_interrupts_cnxk_pf(struct octep_device *oct)
{
- u64 intr_mask = 0ULL;
+ u64 reg_val, intr_mask = 0ULL;
int srn, num_rings, i;
srn = CFG_GET_PORTS_PF_SRN(oct->conf);
num_rings = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
- for (i = 0; i < num_rings; i++)
+ for (i = 0; i < num_rings; i++) {
intr_mask |= (0x1ULL << (srn + i));
+ reg_val = octep_read_csr64(oct, CNXK_SDP_R_IN_INT_LEVELS(srn + i));
+ reg_val &= ~(0x1ULL << 62);
+ octep_write_csr64(oct, CNXK_SDP_R_IN_INT_LEVELS(srn + i), reg_val);
+
+ reg_val = octep_read_csr64(oct, CNXK_SDP_R_OUT_INT_LEVELS(srn + i));
+ reg_val &= ~(0x1ULL << 62);
+ octep_write_csr64(oct, CNXK_SDP_R_OUT_INT_LEVELS(srn + i), reg_val);
+ }
octep_write_csr64(oct, CNXK_SDP_EPF_IRERR_RINT_ENA_W1C, intr_mask);
octep_write_csr64(oct, CNXK_SDP_EPF_ORERR_RINT_ENA_W1C, intr_mask);
--
2.47.0
next prev parent reply other threads:[~2025-12-12 12:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-12 12:22 [PATCH net v1 0/3] disable interrupts and ensure dbell updation Vimlesh Kumar
2025-12-12 12:23 ` Vimlesh Kumar [this message]
2025-12-12 16:13 ` [PATCH net v1 1/3] octeon_ep: disable per ring interrupts Simon Horman
2025-12-12 12:23 ` [PATCH net v1 2/3] octeon_ep: ensure dbell BADDR updation Vimlesh Kumar
2025-12-12 16:07 ` Simon Horman
2025-12-12 12:23 ` [PATCH net v1 3/3] octeon_ep_vf: " Vimlesh Kumar
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