From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id DB66D1B4EB for ; Wed, 3 Apr 2019 19:16:20 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Apr 2019 10:16:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,305,1549958400"; d="scan'208";a="161086719" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.116.180]) by fmsmga001.fm.intel.com with ESMTP; 03 Apr 2019 10:16:19 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Wed, 3 Apr 2019 19:15:57 +0200 Message-Id: <20190403171601.9788-2-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190403171601.9788-1-marcinx.hajkowski@intel.com> References: <20190403171601.9788-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH 1/4] power: extend guest channel for query freq. X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Apr 2019 17:16:21 -0000 From: Marcin Hajkowski Extend incoming packet reading API with new packet type which carries CPU frequencies. Signed-off-by: Marcin Hajkowski --- lib/librte_power/channel_commands.h | 21 +++++++++++++++++++++ lib/librte_power/guest_channel.c | 27 ++++++++++++++++----------- lib/librte_power/guest_channel.h | 21 ++++++++++++++++----- 3 files changed, 53 insertions(+), 16 deletions(-) diff --git a/lib/librte_power/channel_commands.h b/lib/librte_power/channel_commands.h index 33fd53a6d..ce587283c 100644 --- a/lib/librte_power/channel_commands.h +++ b/lib/librte_power/channel_commands.h @@ -15,6 +15,8 @@ extern "C" { /* Maximum number of channels per VM */ #define CHANNEL_CMDS_MAX_VM_CHANNELS 64 +/* --- Incoming messages --- */ + /* Valid Commands */ #define CPU_POWER 1 #define CPU_POWER_CONNECT 2 @@ -29,10 +31,19 @@ extern "C" { #define CPU_POWER_ENABLE_TURBO 5 #define CPU_POWER_DISABLE_TURBO 6 +/* CPU Power Queries */ +#define CPU_POWER_QUERY_FREQ_LIST 7 +#define CPU_POWER_QUERY_FREQ 8 + +/* --- Outgoing messages --- */ + /* Generic Power Command Response */ #define CPU_POWER_CMD_ACK 1 #define CPU_POWER_CMD_NACK 2 +/* CPU Power Query Responses */ +#define CPU_POWER_FREQ_LIST 3 + #define HOURS 24 #define MAX_VFS 10 @@ -85,6 +96,16 @@ struct channel_packet { struct t_boost_status t_boost_status; }; +struct channel_packet_freq_list { + uint64_t resource_id; /**< core_num, device */ + uint32_t unit; /**< scale down/up/min/max */ + uint32_t command; /**< Power, IO, etc */ + char vm_name[VM_MAX_NAME_SZ]; + + uint32_t freq_list[MAX_VCPU_PER_VM]; + uint8_t num_vcpu; +}; + #ifdef __cplusplus } diff --git a/lib/librte_power/guest_channel.c b/lib/librte_power/guest_channel.c index 888423891..439cd2f38 100644 --- a/lib/librte_power/guest_channel.c +++ b/lib/librte_power/guest_channel.c @@ -129,13 +129,15 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt, return guest_channel_send_msg(pkt, lcore_id); } -int power_guest_channel_read_msg(struct channel_packet *pkt, - unsigned int lcore_id) +int power_guest_channel_read_msg(void *pkt, + size_t pkt_len, + unsigned int lcore_id) { int ret; struct pollfd fds; - void *buffer = pkt; - int buffer_len = sizeof(*pkt); + + if (pkt_len == 0 || pkt == NULL) + return -1; fds.fd = global_fds[lcore_id]; fds.events = POLLIN; @@ -161,29 +163,32 @@ int power_guest_channel_read_msg(struct channel_packet *pkt, return -1; } - while (buffer_len > 0) { + while (pkt_len > 0) { ret = read(global_fds[lcore_id], - buffer, buffer_len); + pkt, pkt_len); + if (ret < 0) { if (errno == EINTR) continue; return -1; } + if (ret == 0) { RTE_LOG(ERR, GUEST_CHANNEL, "Expected more data, but connection has been closed.\n"); return -1; } - buffer = (char *)buffer + ret; - buffer_len -= ret; + pkt = (char *)pkt + ret; + pkt_len -= ret; } return 0; } -int rte_power_guest_channel_receive_msg(struct channel_packet *pkt, - unsigned int lcore_id) +int rte_power_guest_channel_receive_msg(void *pkt, + size_t pkt_len, + unsigned int lcore_id) { - return power_guest_channel_read_msg(pkt, lcore_id); + return power_guest_channel_read_msg(pkt, pkt_len, lcore_id); } void diff --git a/lib/librte_power/guest_channel.h b/lib/librte_power/guest_channel.h index 7c385df39..473901547 100644 --- a/lib/librte_power/guest_channel.h +++ b/lib/librte_power/guest_channel.h @@ -17,6 +17,7 @@ extern "C" { * * @param path * The path to the serial device on the filesystem + * * @param lcore_id * lcore_id. * @@ -73,7 +74,11 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt, * from the host endpoint. * * @param pkt - * Pointer to a populated struct channel_packet + * Pointer to channel_packet or + * channel_packet_freq_list struct. + * + * @param pkt_len + * Size of expected data packet. * * @param lcore_id * lcore_id. @@ -82,7 +87,8 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt, * - 0 on success. * - Negative on error. */ -int power_guest_channel_read_msg(struct channel_packet *pkt, +int power_guest_channel_read_msg(void *pkt, + size_t pkt_len, unsigned int lcore_id); /** @@ -90,7 +96,11 @@ int power_guest_channel_read_msg(struct channel_packet *pkt, * from the host endpoint. * * @param pkt - * Pointer to a populated struct channel_packet + * Pointer to channel_packet or + * channel_packet_freq_list struct. + * + * @param pkt_len + * Size of expected data packet. * * @param lcore_id * lcore_id. @@ -100,8 +110,9 @@ int power_guest_channel_read_msg(struct channel_packet *pkt, * - Negative on error. */ int __rte_experimental -rte_power_guest_channel_receive_msg(struct channel_packet *pkt, - unsigned int lcore_id); +rte_power_guest_channel_receive_msg(void *pkt, + size_t pkt_len, + unsigned int lcore_id); #ifdef __cplusplus } -- 2.17.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id CBF74A0679 for ; Wed, 3 Apr 2019 19:17:09 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 13A261B53A; Wed, 3 Apr 2019 19:16:37 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id DB66D1B4EB for ; Wed, 3 Apr 2019 19:16:20 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Apr 2019 10:16:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,305,1549958400"; d="scan'208";a="161086719" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.116.180]) by fmsmga001.fm.intel.com with ESMTP; 03 Apr 2019 10:16:19 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Wed, 3 Apr 2019 19:15:57 +0200 Message-Id: <20190403171601.9788-2-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190403171601.9788-1-marcinx.hajkowski@intel.com> References: <20190403171601.9788-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH 1/4] power: extend guest channel for query freq. X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Content-Type: text/plain; charset="UTF-8" Message-ID: <20190403171557.8ydLK5deNVZHZzhdWu_YUzyDgz8J2e17YYYrlJxRQhw@z> From: Marcin Hajkowski Extend incoming packet reading API with new packet type which carries CPU frequencies. Signed-off-by: Marcin Hajkowski --- lib/librte_power/channel_commands.h | 21 +++++++++++++++++++++ lib/librte_power/guest_channel.c | 27 ++++++++++++++++----------- lib/librte_power/guest_channel.h | 21 ++++++++++++++++----- 3 files changed, 53 insertions(+), 16 deletions(-) diff --git a/lib/librte_power/channel_commands.h b/lib/librte_power/channel_commands.h index 33fd53a6d..ce587283c 100644 --- a/lib/librte_power/channel_commands.h +++ b/lib/librte_power/channel_commands.h @@ -15,6 +15,8 @@ extern "C" { /* Maximum number of channels per VM */ #define CHANNEL_CMDS_MAX_VM_CHANNELS 64 +/* --- Incoming messages --- */ + /* Valid Commands */ #define CPU_POWER 1 #define CPU_POWER_CONNECT 2 @@ -29,10 +31,19 @@ extern "C" { #define CPU_POWER_ENABLE_TURBO 5 #define CPU_POWER_DISABLE_TURBO 6 +/* CPU Power Queries */ +#define CPU_POWER_QUERY_FREQ_LIST 7 +#define CPU_POWER_QUERY_FREQ 8 + +/* --- Outgoing messages --- */ + /* Generic Power Command Response */ #define CPU_POWER_CMD_ACK 1 #define CPU_POWER_CMD_NACK 2 +/* CPU Power Query Responses */ +#define CPU_POWER_FREQ_LIST 3 + #define HOURS 24 #define MAX_VFS 10 @@ -85,6 +96,16 @@ struct channel_packet { struct t_boost_status t_boost_status; }; +struct channel_packet_freq_list { + uint64_t resource_id; /**< core_num, device */ + uint32_t unit; /**< scale down/up/min/max */ + uint32_t command; /**< Power, IO, etc */ + char vm_name[VM_MAX_NAME_SZ]; + + uint32_t freq_list[MAX_VCPU_PER_VM]; + uint8_t num_vcpu; +}; + #ifdef __cplusplus } diff --git a/lib/librte_power/guest_channel.c b/lib/librte_power/guest_channel.c index 888423891..439cd2f38 100644 --- a/lib/librte_power/guest_channel.c +++ b/lib/librte_power/guest_channel.c @@ -129,13 +129,15 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt, return guest_channel_send_msg(pkt, lcore_id); } -int power_guest_channel_read_msg(struct channel_packet *pkt, - unsigned int lcore_id) +int power_guest_channel_read_msg(void *pkt, + size_t pkt_len, + unsigned int lcore_id) { int ret; struct pollfd fds; - void *buffer = pkt; - int buffer_len = sizeof(*pkt); + + if (pkt_len == 0 || pkt == NULL) + return -1; fds.fd = global_fds[lcore_id]; fds.events = POLLIN; @@ -161,29 +163,32 @@ int power_guest_channel_read_msg(struct channel_packet *pkt, return -1; } - while (buffer_len > 0) { + while (pkt_len > 0) { ret = read(global_fds[lcore_id], - buffer, buffer_len); + pkt, pkt_len); + if (ret < 0) { if (errno == EINTR) continue; return -1; } + if (ret == 0) { RTE_LOG(ERR, GUEST_CHANNEL, "Expected more data, but connection has been closed.\n"); return -1; } - buffer = (char *)buffer + ret; - buffer_len -= ret; + pkt = (char *)pkt + ret; + pkt_len -= ret; } return 0; } -int rte_power_guest_channel_receive_msg(struct channel_packet *pkt, - unsigned int lcore_id) +int rte_power_guest_channel_receive_msg(void *pkt, + size_t pkt_len, + unsigned int lcore_id) { - return power_guest_channel_read_msg(pkt, lcore_id); + return power_guest_channel_read_msg(pkt, pkt_len, lcore_id); } void diff --git a/lib/librte_power/guest_channel.h b/lib/librte_power/guest_channel.h index 7c385df39..473901547 100644 --- a/lib/librte_power/guest_channel.h +++ b/lib/librte_power/guest_channel.h @@ -17,6 +17,7 @@ extern "C" { * * @param path * The path to the serial device on the filesystem + * * @param lcore_id * lcore_id. * @@ -73,7 +74,11 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt, * from the host endpoint. * * @param pkt - * Pointer to a populated struct channel_packet + * Pointer to channel_packet or + * channel_packet_freq_list struct. + * + * @param pkt_len + * Size of expected data packet. * * @param lcore_id * lcore_id. @@ -82,7 +87,8 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt, * - 0 on success. * - Negative on error. */ -int power_guest_channel_read_msg(struct channel_packet *pkt, +int power_guest_channel_read_msg(void *pkt, + size_t pkt_len, unsigned int lcore_id); /** @@ -90,7 +96,11 @@ int power_guest_channel_read_msg(struct channel_packet *pkt, * from the host endpoint. * * @param pkt - * Pointer to a populated struct channel_packet + * Pointer to channel_packet or + * channel_packet_freq_list struct. + * + * @param pkt_len + * Size of expected data packet. * * @param lcore_id * lcore_id. @@ -100,8 +110,9 @@ int power_guest_channel_read_msg(struct channel_packet *pkt, * - Negative on error. */ int __rte_experimental -rte_power_guest_channel_receive_msg(struct channel_packet *pkt, - unsigned int lcore_id); +rte_power_guest_channel_receive_msg(void *pkt, + size_t pkt_len, + unsigned int lcore_id); #ifdef __cplusplus } -- 2.17.2