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bh=8ukWOmEgHLqBfOxNv4qwgTd9uIIxaNm442ZeTMbCSNY=; b=PNHBYonHBdGBm3CosTu+1EDWx2qsDTpSgsawcQ6KBstNYgntCD9Ug4xB57lUfrpO85z7s4 XXMN50cc3k8MAcqCcD32subDLuEq2rj7l2BxxJpFC8JEQtzjCv3i0sLeojqmy2eGTDrKOF 9Buqj110o4FioENNtPjqo8yy9ueJm1Y= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1725453897; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8ukWOmEgHLqBfOxNv4qwgTd9uIIxaNm442ZeTMbCSNY=; b=utz1qPKs/Cqt2GWMq6zoN/XL66g9F+rovRNC1Ms+Kkwk5zj+2hjm2pVEFnGxnw9cQZhliN Ge9vY0ISZDdVm6Bw== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PULL 21/34] migration/multifd: Isolate ram pages packet data Date: Wed, 4 Sep 2024 09:44:04 -0300 Message-Id: <20240904124417.14565-22-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240904124417.14565-1-farosas@suse.de> References: <20240904124417.14565-1-farosas@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-3.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.990]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCPT_COUNT_THREE(0.00)[4]; FROM_HAS_DN(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[linaro.org:email,suse.de:email,suse.de:mid] X-Spam-Score: -3.30 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=195.135.223.131; envelope-from=farosas@suse.de; helo=smtp-out2.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @suse.de) X-ZM-MESSAGEID: 1725454118056116600 While we cannot yet disentangle the multifd packet from page data, we can make the code a bit cleaner by setting the page-related fields in a separate function. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Peter Xu Signed-off-by: Fabiano Rosas --- migration/multifd.c | 99 +++++++++++++++++++++++++----------------- migration/trace-events | 5 ++- 2 files changed, 63 insertions(+), 41 deletions(-) diff --git a/migration/multifd.c b/migration/multifd.c index df8dfcc98f..d64fcdf4ac 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -424,65 +424,61 @@ static int multifd_recv_initial_packet(QIOChannel *c,= Error **errp) return msg.id; } =20 -void multifd_send_fill_packet(MultiFDSendParams *p) +static void multifd_ram_fill_packet(MultiFDSendParams *p) { MultiFDPacket_t *packet =3D p->packet; MultiFDPages_t *pages =3D &p->data->u.ram; - uint64_t packet_num; uint32_t zero_num =3D pages->num - pages->normal_num; - int i; =20 - packet->flags =3D cpu_to_be32(p->flags); packet->pages_alloc =3D cpu_to_be32(multifd_ram_page_count()); packet->normal_pages =3D cpu_to_be32(pages->normal_num); packet->zero_pages =3D cpu_to_be32(zero_num); - packet->next_packet_size =3D cpu_to_be32(p->next_packet_size); - - packet_num =3D qatomic_fetch_inc(&multifd_send_state->packet_num); - packet->packet_num =3D cpu_to_be64(packet_num); =20 if (pages->block) { strncpy(packet->ramblock, pages->block->idstr, 256); } =20 - for (i =3D 0; i < pages->num; i++) { + for (int i =3D 0; i < pages->num; i++) { /* there are architectures where ram_addr_t is 32 bit */ uint64_t temp =3D pages->offset[i]; =20 packet->offset[i] =3D cpu_to_be64(temp); } =20 + trace_multifd_send_ram_fill(p->id, pages->normal_num, zero_num); +} + +void multifd_send_fill_packet(MultiFDSendParams *p) +{ + MultiFDPacket_t *packet =3D p->packet; + uint64_t packet_num; + + memset(packet, 0, p->packet_len); + + packet->magic =3D cpu_to_be32(MULTIFD_MAGIC); + packet->version =3D cpu_to_be32(MULTIFD_VERSION); + + packet->flags =3D cpu_to_be32(p->flags); + packet->next_packet_size =3D cpu_to_be32(p->next_packet_size); + + packet_num =3D qatomic_fetch_inc(&multifd_send_state->packet_num); + packet->packet_num =3D cpu_to_be64(packet_num); + p->packets_sent++; =20 - trace_multifd_send(p->id, packet_num, pages->normal_num, zero_num, - p->flags, p->next_packet_size); + multifd_ram_fill_packet(p); + + trace_multifd_send_fill(p->id, packet_num, + p->flags, p->next_packet_size); } =20 -static int multifd_recv_unfill_packet(MultiFDRecvParams *p, Error **errp) +static int multifd_ram_unfill_packet(MultiFDRecvParams *p, Error **errp) { MultiFDPacket_t *packet =3D p->packet; uint32_t page_count =3D multifd_ram_page_count(); uint32_t page_size =3D multifd_ram_page_size(); int i; =20 - packet->magic =3D be32_to_cpu(packet->magic); - if (packet->magic !=3D MULTIFD_MAGIC) { - error_setg(errp, "multifd: received packet " - "magic %x and expected magic %x", - packet->magic, MULTIFD_MAGIC); - return -1; - } - - packet->version =3D be32_to_cpu(packet->version); - if (packet->version !=3D MULTIFD_VERSION) { - error_setg(errp, "multifd: received packet " - "version %u and expected version %u", - packet->version, MULTIFD_VERSION); - return -1; - } - - p->flags =3D be32_to_cpu(packet->flags); - packet->pages_alloc =3D be32_to_cpu(packet->pages_alloc); /* * If we received a packet that is 100 times bigger than expected @@ -511,13 +507,6 @@ static int multifd_recv_unfill_packet(MultiFDRecvParam= s *p, Error **errp) return -1; } =20 - p->next_packet_size =3D be32_to_cpu(packet->next_packet_size); - p->packet_num =3D be64_to_cpu(packet->packet_num); - p->packets_recved++; - - trace_multifd_recv(p->id, p->packet_num, p->normal_num, p->zero_num, - p->flags, p->next_packet_size); - if (p->normal_num =3D=3D 0 && p->zero_num =3D=3D 0) { return 0; } @@ -559,6 +548,40 @@ static int multifd_recv_unfill_packet(MultiFDRecvParam= s *p, Error **errp) return 0; } =20 +static int multifd_recv_unfill_packet(MultiFDRecvParams *p, Error **errp) +{ + MultiFDPacket_t *packet =3D p->packet; + int ret =3D 0; + + packet->magic =3D be32_to_cpu(packet->magic); + if (packet->magic !=3D MULTIFD_MAGIC) { + error_setg(errp, "multifd: received packet " + "magic %x and expected magic %x", + packet->magic, MULTIFD_MAGIC); + return -1; + } + + packet->version =3D be32_to_cpu(packet->version); + if (packet->version !=3D MULTIFD_VERSION) { + error_setg(errp, "multifd: received packet " + "version %u and expected version %u", + packet->version, MULTIFD_VERSION); + return -1; + } + + p->flags =3D be32_to_cpu(packet->flags); + p->next_packet_size =3D be32_to_cpu(packet->next_packet_size); + p->packet_num =3D be64_to_cpu(packet->packet_num); + p->packets_recved++; + + ret =3D multifd_ram_unfill_packet(p, errp); + + trace_multifd_recv_unfill(p->id, p->packet_num, p->flags, + p->next_packet_size); + + return ret; +} + static bool multifd_send_should_exit(void) { return qatomic_read(&multifd_send_state->exiting); @@ -1203,8 +1226,6 @@ bool multifd_send_setup(void) p->packet_len =3D sizeof(MultiFDPacket_t) + sizeof(uint64_t) * page_count; p->packet =3D g_malloc0(p->packet_len); - p->packet->magic =3D cpu_to_be32(MULTIFD_MAGIC); - p->packet->version =3D cpu_to_be32(MULTIFD_VERSION); } p->name =3D g_strdup_printf("mig/src/send_%d", i); p->write_flags =3D 0; diff --git a/migration/trace-events b/migration/trace-events index 0887cef912..c65902f042 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -128,7 +128,7 @@ postcopy_preempt_reset_channel(void) "" # multifd.c multifd_new_send_channel_async(uint8_t id) "channel %u" multifd_new_send_channel_async_error(uint8_t id, void *err) "channel=3D%u = err=3D%p" -multifd_recv(uint8_t id, uint64_t packet_num, uint32_t normal, uint32_t ze= ro, uint32_t flags, uint32_t next_packet_size) "channel %u packet_num %" PR= Iu64 " normal pages %u zero pages %u flags 0x%x next packet size %u" +multifd_recv_unfill(uint8_t id, uint64_t packet_num, uint32_t flags, uint3= 2_t next_packet_size) "channel %u packet_num %" PRIu64 " flags 0x%x next pa= cket size %u" multifd_recv_new_channel(uint8_t id) "channel %u" multifd_recv_sync_main(long packet_num) "packet num %ld" multifd_recv_sync_main_signal(uint8_t id) "channel %u" @@ -136,7 +136,8 @@ multifd_recv_sync_main_wait(uint8_t id) "iter %u" multifd_recv_terminate_threads(bool error) "error %d" multifd_recv_thread_end(uint8_t id, uint64_t packets) "channel %u packets = %" PRIu64 multifd_recv_thread_start(uint8_t id) "%u" -multifd_send(uint8_t id, uint64_t packet_num, uint32_t normal_pages, uint3= 2_t zero_pages, uint32_t flags, uint32_t next_packet_size) "channel %u pack= et_num %" PRIu64 " normal pages %u zero pages %u flags 0x%x next packet siz= e %u" +multifd_send_fill(uint8_t id, uint64_t packet_num, uint32_t flags, uint32_= t next_packet_size) "channel %u packet_num %" PRIu64 " flags 0x%x next pack= et size %u" +multifd_send_ram_fill(uint8_t id, uint32_t normal, uint32_t zero) "channel= %u normal pages %u zero pages %u" multifd_send_error(uint8_t id) "channel %u" multifd_send_sync_main(long packet_num) "packet num %ld" multifd_send_sync_main_signal(uint8_t id) "channel %u" --=20 2.35.3