patch 'net/nfp: fix address always related with PF ID 0' has been queued to stable release 21.11.5

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/25/23. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/95e5d439e02b5834ddd53f7688349d9da2479a7e

Thanks.

Kevin

---
>From 95e5d439e02b5834ddd53f7688349d9da2479a7e Mon Sep 17 00:00:00 2001
From: Peng Zhang <peng.zhang at corigine.com>
Date: Fri, 16 Jun 2023 16:57:23 +0800
Subject: [PATCH] net/nfp: fix address always related with PF ID 0

[ upstream commit 467370c93d73267c1d4417bff975cf812b878f48 ]

Now the PCIE configure bar address is always related with PF ID 0.
For the NIC with multiple PCI device, this will lead the host crash.
Fix this problem by make the PCIE configure bar address related with
the PF ID.

Fixes: c7e9729da6b5 ("net/nfp: support CPP")

Signed-off-by: Peng Zhang <peng.zhang at corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he at corigine.com>
Reviewed-by: Long Wu <long.wu at corigine.com>
---
 drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c b/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c
index 08bc4e8ef2..978c91f6b0 100644
--- a/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c
+++ b/drivers/net/nfp/nfpcore/nfp_cpp_pcie_ops.c
@@ -67,6 +67,6 @@
 #define NFP_PCIE_P2C_GENERAL_SIZE(bar)             (1 << ((bar)->bitsize - 4))
 
-#define NFP_PCIE_CFG_BAR_PCIETOCPPEXPBAR(bar, slot) \
-	(NFP_PCIE_BAR(0) + ((bar) * 8 + (slot)) * 4)
+#define NFP_PCIE_CFG_BAR_PCIETOCPPEXPBAR(id, bar, slot) \
+	(NFP_PCIE_BAR(id) + ((bar) * 8 + (slot)) * 4)
 
 #define NFP_PCIE_CPP_BAR_PCIETOCPPEXPBAR(bar, slot) \
@@ -115,4 +115,5 @@ struct nfp_pcie_user {
 	char busdev[BUSDEV_SZ];
 	int barsz;
+	int dev_id;
 	char *cfg;
 };
@@ -256,5 +257,5 @@ nfp_bar_write(struct nfp_pcie_user *nfp, struct nfp_bar *bar,
 
 	bar->csr = nfp->cfg +
-		   NFP_PCIE_CFG_BAR_PCIETOCPPEXPBAR(base, slot);
+		   NFP_PCIE_CFG_BAR_PCIETOCPPEXPBAR(nfp->dev_id, base, slot);
 
 	*(uint32_t *)(bar->csr) = newcfg;
@@ -326,8 +327,6 @@ nfp_enable_bars(struct nfp_pcie_user *nfp)
 		bar->iomem = NULL;
 		bar->lock = 0;
-		bar->csr = nfp->cfg +
-			   NFP_PCIE_CFG_BAR_PCIETOCPPEXPBAR(bar->index >> 3,
-							   bar->index & 7);
-
+		bar->csr = nfp->cfg + NFP_PCIE_CFG_BAR_PCIETOCPPEXPBAR(nfp->dev_id,
+				bar->index >> 3, bar->index & 7);
 		bar->iomem = nfp->cfg + (bar->index << bar->bitsize);
 	}
@@ -844,4 +843,5 @@ nfp6000_init(struct nfp_cpp *cpp, struct rte_pci_device *dev)
 
 	desc->cfg = (char *)dev->mem_resource[0].addr;
+	desc->dev_id = dev->addr.function & 0x7;
 
 	nfp_enable_bars(desc);
-- 
2.41.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2023-07-20 16:18:06.686627578 +0100
+++ 0096-net-nfp-fix-address-always-related-with-PF-ID-0.patch	2023-07-20 16:17:55.025751994 +0100
@@ -1 +1 @@
-From 467370c93d73267c1d4417bff975cf812b878f48 Mon Sep 17 00:00:00 2001
+From 95e5d439e02b5834ddd53f7688349d9da2479a7e Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 467370c93d73267c1d4417bff975cf812b878f48 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -22 +23 @@
-index e230c40051..658c618ee6 100644
+index 08bc4e8ef2..978c91f6b0 100644
@@ -34 +35 @@
-@@ -117,4 +117,5 @@ struct nfp_pcie_user {
+@@ -115,4 +115,5 @@ struct nfp_pcie_user {
@@ -40 +41 @@
-@@ -246,5 +247,5 @@ nfp_bar_write(struct nfp_pcie_user *nfp, struct nfp_bar *bar,
+@@ -256,5 +257,5 @@ nfp_bar_write(struct nfp_pcie_user *nfp, struct nfp_bar *bar,
@@ -47 +48 @@
-@@ -315,8 +316,6 @@ nfp_enable_bars(struct nfp_pcie_user *nfp)
+@@ -326,8 +327,6 @@ nfp_enable_bars(struct nfp_pcie_user *nfp)
@@ -58 +59 @@
-@@ -780,4 +779,5 @@ nfp6000_init(struct nfp_cpp *cpp, struct rte_pci_device *dev)
+@@ -844,4 +843,5 @@ nfp6000_init(struct nfp_cpp *cpp, struct rte_pci_device *dev)
@@ -60 +61 @@
- 	desc->cfg = dev->mem_resource[0].addr;
+ 	desc->cfg = (char *)dev->mem_resource[0].addr;