From: David Gibson <david@gibson.dropbear.id.au>
To: Michael Roth <mdroth@linux.vnet.ibm.com>
Cc: qemu-devel@nongnu.org, nfont@linux.vnet.ibm.com,
qemu-ppc@nongnu.org, jallen@linux.vnet.ibm.com,
bharata@linux.vnet.ibm.com
Subject: Re: [Qemu-devel] [PATCH 08/10] spapr: Add DRC count indexed hotplug identifier type
Date: Wed, 26 Oct 2016 11:48:39 +1100 [thread overview]
Message-ID: <20161026004839.GP11052@umbus.fritz.box> (raw)
In-Reply-To: <1477370856-8940-9-git-send-email-mdroth@linux.vnet.ibm.com>
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On Mon, Oct 24, 2016 at 11:47:34PM -0500, Michael Roth wrote:
> From: Bharata B Rao <bharata@linux.vnet.ibm.com>
>
> Add support for DRC count indexed hotplug ID type which is primarily
> needed for memory hot unplug. This type allows for specifying the
> number of DRs that should be plugged/unplugged starting from a given
> DRC index.
>
> Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
> * updated rtas_event_log_v6_hp to reflect count/index field ordering
> used in PAPR hotplug ACR
> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> ---
> hw/ppc/spapr_events.c | 76 ++++++++++++++++++++++++++++++++++++++++----------
> include/hw/ppc/spapr.h | 4 +++
> 2 files changed, 65 insertions(+), 15 deletions(-)
>
> diff --git a/hw/ppc/spapr_events.c b/hw/ppc/spapr_events.c
> index b6b3511..596e991 100644
> --- a/hw/ppc/spapr_events.c
> +++ b/hw/ppc/spapr_events.c
> @@ -175,6 +175,16 @@ struct epow_log_full {
> struct rtas_event_log_v6_epow epow;
> } QEMU_PACKED;
>
> +union drc_identifier {
> + uint32_t index;
> + uint32_t count;
> + struct {
> + uint32_t count;
> + uint32_t index;
> + } count_indexed;
> + char name[1];
> +} QEMU_PACKED;
> +
> struct rtas_event_log_v6_hp {
> #define RTAS_LOG_V6_SECTION_ID_HOTPLUG 0x4850 /* HP */
> struct rtas_event_log_v6_section_header hdr;
> @@ -191,12 +201,9 @@ struct rtas_event_log_v6_hp {
> #define RTAS_LOG_V6_HP_ID_DRC_NAME 1
> #define RTAS_LOG_V6_HP_ID_DRC_INDEX 2
> #define RTAS_LOG_V6_HP_ID_DRC_COUNT 3
> +#define RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED 4
> uint8_t reserved;
> - union {
> - uint32_t index;
> - uint32_t count;
> - char name[1];
> - } drc;
> + union drc_identifier drc_id;
> } QEMU_PACKED;
>
> struct hp_log_full {
> @@ -496,7 +503,7 @@ static void spapr_hotplug_set_signalled(uint32_t drc_index)
>
> static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t hp_action,
> sPAPRDRConnectorType drc_type,
> - uint32_t drc)
> + union drc_identifier *drc_id)
> {
> sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
> struct hp_log_full *new_hp;
> @@ -541,7 +548,7 @@ static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t hp_action,
> case SPAPR_DR_CONNECTOR_TYPE_PCI:
> hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_PCI;
> if (hp->hotplug_action == RTAS_LOG_V6_HP_ACTION_ADD) {
> - spapr_hotplug_set_signalled(drc);
> + spapr_hotplug_set_signalled(drc_id->index);
> }
> break;
> case SPAPR_DR_CONNECTOR_TYPE_LMB:
> @@ -559,9 +566,18 @@ static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t hp_action,
> }
>
> if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT) {
> - hp->drc.count = cpu_to_be32(drc);
> + hp->drc_id.count = cpu_to_be32(drc_id->count);
> } else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_INDEX) {
> - hp->drc.index = cpu_to_be32(drc);
> + hp->drc_id.index = cpu_to_be32(drc_id->index);
> + } else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED) {
> + /* we should not be using count_indexed value unless the guest
> + * supports dedicated hotplug event source
> + */
> + g_assert(spapr_ovec_test(spapr->ov5_cas, OV5_HP_EVT));
> + hp->drc_id.count_indexed.count =
> + cpu_to_be32(drc_id->count_indexed.count);
> + hp->drc_id.count_indexed.index =
> + cpu_to_be32(drc_id->count_indexed.index);
> }
>
> rtas_event_log_queue(RTAS_LOG_TYPE_HOTPLUG, new_hp, true);
> @@ -575,34 +591,64 @@ void spapr_hotplug_req_add_by_index(sPAPRDRConnector *drc)
> {
> sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
> sPAPRDRConnectorType drc_type = drck->get_type(drc);
> - uint32_t index = drck->get_index(drc);
> + union drc_identifier drc_id;
>
> + drc_id.index = drck->get_index(drc);
> spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
> - RTAS_LOG_V6_HP_ACTION_ADD, drc_type, index);
> + RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
> }
>
> void spapr_hotplug_req_remove_by_index(sPAPRDRConnector *drc)
> {
> sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
> sPAPRDRConnectorType drc_type = drck->get_type(drc);
> - uint32_t index = drck->get_index(drc);
> + union drc_identifier drc_id;
>
> + drc_id.index = drck->get_index(drc);
> spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
> - RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, index);
> + RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, &drc_id);
> }
>
> void spapr_hotplug_req_add_by_count(sPAPRDRConnectorType drc_type,
> uint32_t count)
> {
> + union drc_identifier drc_id;
> +
> + drc_id.count = count;
> spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
> - RTAS_LOG_V6_HP_ACTION_ADD, drc_type, count);
> + RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
> }
>
> void spapr_hotplug_req_remove_by_count(sPAPRDRConnectorType drc_type,
> uint32_t count)
> {
> + union drc_identifier drc_id;
> +
> + drc_id.count = count;
> spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
> - RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, count);
> + RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, &drc_id);
> +}
> +
> +void spapr_hotplug_req_add_by_count_indexed(sPAPRDRConnectorType drc_type,
> + uint32_t count, uint32_t index)
> +{
> + union drc_identifier drc_id;
> +
> + drc_id.count_indexed.count = count;
> + drc_id.count_indexed.index = index;
> + spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED,
> + RTAS_LOG_V6_HP_ACTION_ADD, drc_type, &drc_id);
> +}
> +
> +void spapr_hotplug_req_remove_by_count_indexed(sPAPRDRConnectorType drc_type,
> + uint32_t count, uint32_t index)
> +{
> + union drc_identifier drc_id;
> +
> + drc_id.count_indexed.count = count;
> + drc_id.count_indexed.index = index;
> + spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT_INDEXED,
> + RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, &drc_id);
> }
>
> static void check_exception(PowerPCCPU *cpu, sPAPRMachineState *spapr,
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index 21af971..bd5bcf7 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -610,6 +610,10 @@ void spapr_hotplug_req_add_by_count(sPAPRDRConnectorType drc_type,
> uint32_t count);
> void spapr_hotplug_req_remove_by_count(sPAPRDRConnectorType drc_type,
> uint32_t count);
> +void spapr_hotplug_req_add_by_count_indexed(sPAPRDRConnectorType drc_type,
> + uint32_t count, uint32_t index);
> +void spapr_hotplug_req_remove_by_count_indexed(sPAPRDRConnectorType drc_type,
> + uint32_t count, uint32_t index);
> void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu, Error **errp);
> void *spapr_populate_hotplug_cpu_dt(CPUState *cs, int *fdt_offset,
> sPAPRMachineState *spapr);
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2016-10-26 1:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-25 4:47 [Qemu-devel] [PATCH 00/10] spapr: option vector re-work and memory unplug support Michael Roth
2016-10-25 4:47 ` [Qemu-devel] [PATCH 01/10] spapr_ovec: initial implementation of option vector helpers Michael Roth
2016-10-25 23:54 ` David Gibson
2016-10-25 4:47 ` [Qemu-devel] [PATCH 02/10] spapr_hcall: use spapr_ovec_* interfaces for CAS options Michael Roth
2016-10-25 4:47 ` [Qemu-devel] [PATCH 03/10] spapr: add option vector handling in CAS-generated resets Michael Roth
2016-10-25 23:56 ` David Gibson
2016-10-25 4:47 ` [Qemu-devel] [PATCH 04/10] spapr: improve ibm, architecture-vec-5 property handling Michael Roth
2016-10-25 23:58 ` David Gibson
2016-10-26 1:34 ` David Gibson
2016-10-25 4:47 ` [Qemu-devel] [PATCH 05/10] spapr: update spapr hotplug documentation Michael Roth
2016-10-25 4:47 ` [Qemu-devel] [PATCH 06/10] spapr: add hotplug interrupt machine options Michael Roth
2016-10-26 0:25 ` David Gibson
2016-10-25 4:47 ` [Qemu-devel] [PATCH 07/10] spapr_events: add support for dedicated hotplug event source Michael Roth
2016-10-26 0:42 ` David Gibson
2016-10-26 21:44 ` Michael Roth
2016-10-25 4:47 ` [Qemu-devel] [PATCH 08/10] spapr: Add DRC count indexed hotplug identifier type Michael Roth
2016-10-26 0:48 ` David Gibson [this message]
2016-10-25 4:47 ` [Qemu-devel] [PATCH 09/10] spapr: use count+index for memory hotplug Michael Roth
2016-10-26 0:49 ` David Gibson
2016-10-25 4:47 ` [Qemu-devel] [PATCH 10/10] spapr: Memory hot-unplug support Michael Roth
2016-10-26 0:57 ` David Gibson
2016-10-26 0:02 ` [Qemu-devel] [PATCH 00/10] spapr: option vector re-work and memory unplug support David Gibson
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