From 96f8f23a1e900796494a54e8b56610e1a7db2a89 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Wed, 29 Oct 2014 13:00:12 +0100 Subject: [PATCH] megasas: Ignore duplicate init_firmware commands The windows driver is sending several init_firmware commands when in MSI-X mode. It is, however, using only the first queue. So disregard any additional init_firmware commands until the HBA is reset. Signed-off-by: Hannes Reinecke Signed-off-by: Paolo Bonzini --- hw/scsi/megasas.c | 9 ++++++--- trace-events | 1 + 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index 57d52885b7..ed4cc1b398 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -610,16 +610,19 @@ static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd) { PCIDevice *pcid = PCI_DEVICE(s); uint32_t pa_hi, pa_lo; - hwaddr iq_pa, initq_size; - struct mfi_init_qinfo *initq; + hwaddr iq_pa, initq_size = sizeof(struct mfi_init_qinfo); + struct mfi_init_qinfo *initq = NULL; uint32_t flags; int ret = MFI_STAT_OK; + if (s->reply_queue_pa) { + trace_megasas_initq_mapped(s->reply_queue_pa); + goto out; + } pa_lo = le32_to_cpu(cmd->frame->init.qinfo_new_addr_lo); pa_hi = le32_to_cpu(cmd->frame->init.qinfo_new_addr_hi); iq_pa = (((uint64_t) pa_hi << 32) | pa_lo); trace_megasas_init_firmware((uint64_t)iq_pa); - initq_size = sizeof(*initq); initq = pci_dma_map(pcid, iq_pa, &initq_size, 0); if (!initq || initq_size != sizeof(*initq)) { trace_megasas_initq_map_failed(cmd->index); diff --git a/trace-events b/trace-events index 2ceb8e426c..a8b25a1524 100644 --- a/trace-events +++ b/trace-events @@ -697,6 +697,7 @@ lm32_uart_irq_state(int level) "irq state %d" megasas_init_firmware(uint64_t pa) "pa %" PRIx64 " " megasas_init_queue(uint64_t queue_pa, int queue_len, uint64_t head, uint64_t tail, uint32_t flags) "queue at %" PRIx64 " len %d head %" PRIx64 " tail %" PRIx64 " flags %x" megasas_initq_map_failed(int frame) "scmd %d: failed to map queue" +megasas_initq_mapped(uint64_t pa) "queue already mapped at %" PRIx64 "" megasas_initq_mismatch(int queue_len, int fw_cmds) "queue size %d max fw cmds %d" megasas_qf_found(unsigned int index, uint64_t pa) "mapped frame %x pa %" PRIx64 "" megasas_qf_new(unsigned int index, void *cmd) "return new frame %x cmd %p" -- GitLab