From: Nithin Dabilpuram <ndabilpuram@marvell.com>
To: <jerinj@marvell.com>, Nithin Dabilpuram <ndabilpuram@marvell.com>,
"Kiran Kumar K" <kirankumark@marvell.com>,
Sunil Kumar Kori <skori@marvell.com>,
Satha Rao <skoteshwar@marvell.com>,
Harman Kalra <hkalra@marvell.com>
Cc: <dev@dpdk.org>
Subject: [PATCH v2 09/17] common/cnxk: add flush wait after write of inline ctx
Date: Tue, 1 Oct 2024 11:30:47 +0530 [thread overview]
Message-ID: <20241001060055.3747591-9-ndabilpuram@marvell.com> (raw)
In-Reply-To: <20241001060055.3747591-1-ndabilpuram@marvell.com>
Reading a CPT_LF_CTX_ERR csr will ensure writes for
FLUSH are complete and also tell whether flush is
complete or not.
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
---
drivers/common/cnxk/roc_nix_inl.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/common/cnxk/roc_nix_inl.c b/drivers/common/cnxk/roc_nix_inl.c
index a984ac56d9..d0328921a7 100644
--- a/drivers/common/cnxk/roc_nix_inl.c
+++ b/drivers/common/cnxk/roc_nix_inl.c
@@ -1748,6 +1748,7 @@ roc_nix_inl_ctx_write(struct roc_nix *roc_nix, void *sa_dptr, void *sa_cptr,
struct nix_inl_dev *inl_dev = NULL;
struct roc_cpt_lf *outb_lf = NULL;
union cpt_lf_ctx_flush flush;
+ union cpt_lf_ctx_err err;
bool get_inl_lf = true;
uintptr_t rbase;
struct nix *nix;
@@ -1789,6 +1790,13 @@ roc_nix_inl_ctx_write(struct roc_nix *roc_nix, void *sa_dptr, void *sa_cptr,
flush.s.cptr = ((uintptr_t)sa_cptr) >> 7;
plt_write64(flush.u, rbase + CPT_LF_CTX_FLUSH);
+ plt_atomic_thread_fence(__ATOMIC_ACQ_REL);
+
+ /* Read a CSR to ensure that the FLUSH operation is complete */
+ err.u = plt_read64(rbase + CPT_LF_CTX_ERR);
+
+ if (err.s.flush_st_flt)
+ plt_warn("CTX flush could not complete");
return 0;
}
plt_nix_dbg("Could not get CPT LF for CTX write");
--
2.34.1
next prev parent reply other threads:[~2024-10-01 6:02 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-01 6:00 [PATCH v2 01/17] net/cnxk: added telemetry support do dump SA information Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 02/17] net/cnxk: handle timestamp correctly for VF Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 03/17] net/cnxk: update Rx offloads to handle timestamp Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 04/17] event/cnxk: handle timestamp for event mode Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 05/17] net/cnxk: update mbuf and rearm data for Rx inject packets Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 06/17] common/cnxk: remove restriction to clear RPM stats Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 07/17] common/cnxk: allow MAC address set/add with active VFs Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 08/17] net/cnxk: move PMD function defines to common code Nithin Dabilpuram
2024-10-01 6:00 ` Nithin Dabilpuram [this message]
2024-10-01 6:00 ` [PATCH v2 10/17] common/cnxk: fix CPT HW word size for outbound SA Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 11/17] net/cnxk: add PMD APIs for IPsec SA base and flush Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 12/17] net/cnxk: add PMD APIs to submit CPT instruction Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 13/17] net/cnxk: add PMD API to retrieve CPT queue statistics Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 14/17] net/cnxk: add option to enable custom inbound sa usage Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 15/17] net/cnxk: add PMD API to retrieve the model string Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 16/17] net/cnxk: handle OOP for inbound packet Nithin Dabilpuram
2024-10-01 6:00 ` [PATCH v2 17/17] event/cnxk: handle inbound out of place processing Nithin Dabilpuram
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