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75 lines
2.7 KiB
75 lines
2.7 KiB
commit a2d1b70cbc90ba41f16281c48e973309469f5d02
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Author: Haren Myneni <haren@linux.ibm.com>
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Date: Tue Aug 13 14:40:25 2024 -0700
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drmgr/pci: Add kernel interface support for device tree update
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Use the following kernel interfaces for PCI device type to update
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the device tree if this feature is enabled in the kernel.
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dt add index <DRC index> --> for IO add
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dt remove index <DRC index> --> for IO remove
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Signed-off-by: Haren Myneni <haren@linux.ibm.com>
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Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
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diff --git a/src/drmgr/drslot_chrp_pci.c b/src/drmgr/drslot_chrp_pci.c
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index 7a52085..4c41fcd 100644
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--- a/src/drmgr/drslot_chrp_pci.c
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+++ b/src/drmgr/drslot_chrp_pci.c
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@@ -377,7 +377,6 @@ static int add_work(struct dr_node *node, bool partner_device)
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/* on when */
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int iso_state = ISOLATE; /* Tells us isolation state after */
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int rc;
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- struct of_node *new_nodes;/* nodes returned from configure_connector */
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/*
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* Already checked the card presence for the original device
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@@ -445,16 +444,26 @@ static int add_work(struct dr_node *node, bool partner_device)
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* the return status requires a message, print it out
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* and exit, otherwise, add the nodes to the OF tree.
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*/
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- new_nodes = configure_connector(node->drc_index);
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- if (new_nodes == NULL) {
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- rtas_set_indicator(ISOLATION_STATE, node->drc_index, ISOLATE);
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- set_power(node->drc_power, POWER_OFF);
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- return -1;
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+ if (kernel_dlpar_exists()) {
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+ rc = do_dt_kernel_dlpar(node->drc_index, ADD);
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+ } else {
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+ struct of_node *new_nodes; /* nodes returned from */
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+ /* configure_connector */
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+
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+ new_nodes = configure_connector(node->drc_index);
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+ if (new_nodes == NULL) {
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+ rtas_set_indicator(ISOLATION_STATE, node->drc_index,
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+ ISOLATE);
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+ set_power(node->drc_power, POWER_OFF);
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+ return -1;
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+ }
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+
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+ say(DEBUG, "Adding %s to %s\n", new_nodes->name,
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+ node->ofdt_path);
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+ rc = add_device_tree_nodes(node->ofdt_path, new_nodes);
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+ free_of_node(new_nodes);
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}
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- say(DEBUG, "Adding %s to %s\n", new_nodes->name, node->ofdt_path);
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- rc = add_device_tree_nodes(node->ofdt_path, new_nodes);
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- free_of_node(new_nodes);
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if (rc) {
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say(DEBUG, "add_device_tree_nodes failed at %s\n",
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node->ofdt_path);
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@@ -786,7 +795,10 @@ static int remove_work(struct dr_node *node, bool partner_device)
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* the device tree.
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*/
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for (child = node->children; child; child = child->next) {
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- rc = remove_device_tree_nodes(child->ofdt_path);
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+ if (kernel_dlpar_exists())
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+ rc = do_dt_kernel_dlpar(child->drc_index, REMOVE);
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+ else
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+ rc = remove_device_tree_nodes(child->ofdt_path);
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if (rc) {
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say(ERROR, "%s", sw_error);
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rtas_set_indicator(ISOLATION_STATE, node->drc_index,
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