From 230284c1b1654d9ba51d9e33bd5fd15c7847c13e Mon Sep 17 00:00:00 2001
From: Alejandro Lucero <alucerop@amd.com>
Date: Tue, 30 Jun 2026 16:13:44 +0100
Subject: [PATCH] sfc: Initialize cxl dpa

Use cxl_set_capacity() for DPA initialization as no mailbox is
available.

Signed-off-by: Alejandro Lucero <alucerop@amd.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ben Cheatham <benjamin.cheatham@amd.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20260630151346.31201-4-alejandro.lucero-palau@amd.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
 drivers/net/ethernet/sfc/efx_cxl.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c
index 704b0ebae937..18b535b3ea40 100644
--- a/drivers/net/ethernet/sfc/efx_cxl.c
+++ b/drivers/net/ethernet/sfc/efx_cxl.c
@@ -68,6 +68,11 @@ int efx_cxl_init(struct efx_probe_data *probe_data)
 	 */
 	cxl->cxlds.media_ready = true;
 
+	if (cxl_set_capacity(&cxl->cxlds, EFX_CTPIO_BUFFER_SIZE)) {
+		pci_err(pci_dev, "dpa capacity setup failed\n");
+		return -ENODEV;
+	}
+
 	probe_data->cxl = cxl;
 
 	return 0;