Searched hist:"41 d5e8da3d5e0a143a9fb397c9f34707ec544997" (Results 1 – 2 of 2) sorted by relevance
| /qemu/hw/scsi/ |
| H A D | trace-events | 41d5e8da3d5e0a143a9fb397c9f34707ec544997 Fri Dec 17 21:43:05 UTC 2021 Philippe Mathieu-Daudé <philmd@redhat.com> hw/scsi/megasas: Use uint32_t for reply queue head/tail values
While the reply queue values fit in 16-bit, they are accessed
as 32-bit:
661: s->reply_queue_head = ldl_le_pci_dma(pcid, s->producer_pa);
662: s->reply_queue_head %= MEGASAS_MAX_FRAMES;
663: s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa);
664: s->reply_queue_tail %= MEGASAS_MAX_FRAMES;
Having:
41:#define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */
In order to update the ld/st*_pci_dma() API to pass the address
of the value to access, it is simpler to have the head/tail declared
as 32-bit values. Replace the uint16_t by uint32_t, wasting 4 bytes in
the MegasasState structure.
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-20-philmd@redhat.com>
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| H A D | megasas.c | 41d5e8da3d5e0a143a9fb397c9f34707ec544997 Fri Dec 17 21:43:05 UTC 2021 Philippe Mathieu-Daudé <philmd@redhat.com> hw/scsi/megasas: Use uint32_t for reply queue head/tail values
While the reply queue values fit in 16-bit, they are accessed
as 32-bit:
661: s->reply_queue_head = ldl_le_pci_dma(pcid, s->producer_pa);
662: s->reply_queue_head %= MEGASAS_MAX_FRAMES;
663: s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa);
664: s->reply_queue_tail %= MEGASAS_MAX_FRAMES;
Having:
41:#define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */
In order to update the ld/st*_pci_dma() API to pass the address
of the value to access, it is simpler to have the head/tail declared
as 32-bit values. Replace the uint16_t by uint32_t, wasting 4 bytes in
the MegasasState structure.
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-20-philmd@redhat.com>
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