IONIC_DV_..._UDMA_MASK(3)

🌸 NAME 🌸

okay bestie, this is IONIC_DV_..._UDMA_MASK(3) from the Ionic Programmer’s Manual ✨ — and the function in the spotlight is ionic_dv_pd_get_udma_mask, which gets the UDMA pipeline mask of a protection domain. That’s the whole name, no cap 💅.

🦋 SYNOPSIS 🦋

#include <infiniband/ionic_dv.h>

uint8_t ionic_dv_pd_get_udma_mask(struct ibv_pd *ibpd);

✨ DESCRIPTION ✨

ionic_dv_pd_get_udma_mask() gives you the current UDMA pipeline mask tied to the protection domain or parent domain ibpd 🫶.

That returned mask tells you which UDMA pipelines are enabled for queues created under this protection domain. It might have been set by an earlier call to ionic_dv_pd_set_udma_mask(3), or it might be the default mask inherited from the device context. literally both paths are valid, okay? 👑

🎀 ARGUMENTS 🎀

• ibpd — the protection domain or parent domain to query 👀. It must be an ionic protection domain, periodt.

💀 RETURN VALUE 💀

Returns the UDMA pipeline mask of the protection domain. And if ibpd is not an ionic protection domain, it returns 0. That’s the whole return vibe check, no extra lore 😭.

🌈 SEE ALSO 🌈

• ionicdv(7)
• ionic_dv_pd_set_udma_mask(3)
• ionic_dv_ctx_get_udma_mask(3)
• ionic_dv_ctx_get_udma_count(3)

go bestie, read the friends too 💖

👑 AUTHORS 👑

Advanced Micro Devices, Inc. 💜

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